Best and Worst Months to Visit Sihanoukville: Weather and Seasonal Guide

Quick Weather Answer: Best and Worst Time to Visit Sihanoukville

The best time to visit Sihanoukville for weather is usually December, when average daytime temperatures are around 83F (28C) and nights are near 76F (24C). The worst time to visit Sihanoukville is usually July, because the weather is less comfortable for long walks, outdoor sightseeing, and casual transit-heavy days.

• Best month for weather: December
• Worst month for weather: July
• Most comfortable season: Winter
• Hottest month: March, with average highs near 88F (31C)
• Coldest month: January, with average lows near 76F (24C)
• Rainiest month: July, with about 18.1 inches of rain
• Driest month: February, with about 1.1 inches of precipitation
• Most unpredictable weather period: the summer rainy period
• Best weather for a first-time trip: January, February, and December

What Is the Weather Like in Sihanoukville?

Sihanoukville has a warm climate all year, so the main difference between months is not cold versus warm. The real question is rain, humidity, storms, cloud cover, and how heavy the air feels during the wettest part of the year. The Sihanoukville climate by month shows average highs from about 84F (29C) in the coolest part of the year to about 88F (31C) in the hottest part. Annual precipitation averages roughly 106.8 inches.

Weather in Sihanoukville changes the feel of the city because this is a place where comfort depends on more than the number on a forecast. A mild month can make metro transfers, neighborhood walks, outdoor meals, and photography feel easy. A difficult month can make the same itinerary feel slower, sweatier, colder, wetter, or more dependent on indoor breaks.

Best Month to Visit Sihanoukville for Weather

December is the best month to visit Sihanoukville for weather in a typical year. Average daytime highs are near 83F (28C), while nights are around 76F (24C). Precipitation averages 2.0 inches, so the month is usually more comfortable than the wetter, hotter, or colder parts of the year.

What makes December stand out is balance. It is not necessarily perfect every day, but it usually gives travelers the best combination of outdoor comfort, manageable weather risk, and enough flexibility for a first-time trip. If hotel prices or crowds rise during this period, that popularity is at least partly weather-driven.

Worst Month to Visit Sihanoukville for Weather

July is the worst month to visit Sihanoukville from a pure weather perspective. Average highs are around 83F (28C), and nights are near 80F (27C). The month also brings heavy rain, averaging about 18.1 inches, which can make long outdoor days less comfortable.

Rain is the main problem. The month is not impossible, but showers and damp conditions can interrupt outdoor plans and make transit transfers less pleasant. Lower hotel prices or fewer visitors can make July acceptable for flexible travelers, but it is not the month I would choose for the best weather in Sihanoukville.

Sihanoukville Weather by Season

Spring Weather in Sihanoukville

In Sihanoukville, spring is less distinct than in a four-season climate, but March, April, and May still have their own weather pattern. Daytime highs typically run from 86F (30C) to 88F (31C), with nights from about 79F (26C) to 82F (28C). Across the season, precipitation averages around 18.7 inches. Rain and humidity shape the season, so outdoor plans need more flexibility than the temperature alone suggests. The best spring month for weather is usually March, while May is the least comfortable part of the season.

Summer Weather in Sihanoukville

In Sihanoukville, summer is less distinct than in a four-season climate, but June, July, and August still have their own weather pattern. Daytime highs typically run from 83F (28C) to 84F (29C), with nights from about 80F (26C) to 81F (27C). Across the season, precipitation averages around 49.6 inches. Rain and humidity shape the season, so outdoor plans need more flexibility than the temperature alone suggests. The best summer month for weather is usually August, while July is the least comfortable part of the season.

Fall Weather in Sihanoukville

In Sihanoukville, fall is less distinct than in a four-season climate, but September, October, and November still have their own weather pattern. Daytime highs typically run from 83F (28C) to 83F (29C), with nights from about 78F (25C) to 79F (26C). Across the season, precipitation averages around 34.2 inches. Rain and humidity shape the season, so outdoor plans need more flexibility than the temperature alone suggests. The best fall month for weather is usually November, while September is the least comfortable part of the season.

Winter Weather in Sihanoukville

In Sihanoukville, winter is less distinct than in a four-season climate, but December, January, and February still have their own weather pattern. Daytime highs typically run from 83F (28C) to 86F (30C), with nights from about 76F (24C) to 77F (25C). Across the season, precipitation averages around 4.2 inches. This is one of the more comfortable stretches of the year for walking, transit transfers, outdoor meals, and photography. The best winter month for weather is usually December, while February is the least comfortable part of the season.

Sihanoukville Weather by Month: What to Expect

January in Sihanoukville

January in Sihanoukville typically brings daytime highs around 84F (29C) and nighttime lows near 76F (24C). Expect some rain, averaging about 1.1 inches, and average winds near 5 mph. In real life, this is one of the easier kinds of city weather, with comfortable walking conditions and only limited weather friction.

Outdoor comfort is very comfortable for most travelers. Pack light clothing, sunglasses, a light layer for evenings. Verdict: January is a good month for weather in Sihanoukville.

February in Sihanoukville

February in Sihanoukville typically brings daytime highs around 86F (30C) and nighttime lows near 77F (25C). Expect some rain, averaging about 1.1 inches, and average winds near 5 mph. In real life, this is warm to hot city weather; it can still work, but midday walking needs shade, water, and a flexible pace.

Outdoor comfort is good, with a few weather tradeoffs for most travelers. Pack light clothing, sunglasses, a light layer for evenings. Verdict: February is a good month for weather in Sihanoukville.

March in Sihanoukville

March in Sihanoukville typically brings daytime highs around 88F (31C) and nighttime lows near 79F (26C). Expect some rain, averaging about 2.7 inches, and average winds near 5 mph. In real life, this is warm to hot city weather; it can still work, but midday walking needs shade, water, and a flexible pace.

Outdoor comfort is good, with a few weather tradeoffs for most travelers. Pack light clothing, sunglasses, a light layer for evenings. Verdict: March is a good month for weather in Sihanoukville.

April in Sihanoukville

April in Sihanoukville typically brings daytime highs around 88F (31C) and nighttime lows near 81F (27C). Expect moderate rain, averaging about 5.9 inches, and average winds near 5 mph. In real life, this is warm to hot city weather; it can still work, but midday walking needs shade, water, and a flexible pace.

Outdoor comfort is not ideal for most travelers. Pack light clothing, sunglasses, a light layer for evenings, a compact umbrella or rain shell. Verdict: April is not one of the better months for weather in Sihanoukville.

May in Sihanoukville

May in Sihanoukville typically brings daytime highs around 86F (30C) and nighttime lows near 82F (28C). Expect heavy rain, averaging about 10.1 inches, and average winds near 6 mph. In real life, this is warm to hot city weather; it can still work, but midday walking needs shade, water, and a flexible pace.

Outdoor comfort is rainy and less reliable for most travelers. Pack light clothing, sunglasses, a light layer for evenings, a compact umbrella or rain shell. Verdict: May is possible, but it is not one of the easier weather months in Sihanoukville.

June in Sihanoukville

June in Sihanoukville typically brings daytime highs around 84F (29C) and nighttime lows near 81F (27C). Expect heavy rain, averaging about 15.5 inches, and average winds near 6 mph. In real life, the month feels usable but changeable, with enough mild weather for outdoor plans and enough cool or wet spells to require backup layers.

Outdoor comfort is rainy and less reliable for most travelers. Pack light clothing, sunglasses, a light layer for evenings, a compact umbrella or rain shell. Verdict: June is possible, but it is not one of the easier weather months in Sihanoukville.

July in Sihanoukville

July in Sihanoukville typically brings daytime highs around 83F (28C) and nighttime lows near 80F (27C). Expect heavy rain, averaging about 18.1 inches, and average winds near 7 mph. In real life, the month feels usable but changeable, with enough mild weather for outdoor plans and enough cool or wet spells to require backup layers.

Outdoor comfort is one of the least comfortable periods of the year for most travelers. Pack light clothing, sunglasses, a light layer for evenings, a compact umbrella or rain shell. Verdict: July is the weakest weather month in Sihanoukville, even if prepared travelers can still make it work.

August in Sihanoukville

August in Sihanoukville typically brings daytime highs around 83F (28C) and nighttime lows near 80F (26C). Expect heavy rain, averaging about 16.0 inches, and average winds near 7 mph. In real life, the month feels usable but changeable, with enough mild weather for outdoor plans and enough cool or wet spells to require backup layers.

Outdoor comfort is rainy and less reliable for most travelers. Pack light clothing, sunglasses, a light layer for evenings, a compact umbrella or rain shell. Verdict: August is possible, but it is not one of the easier weather months in Sihanoukville.

September in Sihanoukville

September in Sihanoukville typically brings daytime highs around 83F (28C) and nighttime lows near 79F (26C). Expect heavy rain, averaging about 17.5 inches, and average winds near 6 mph. In real life, the month feels usable but changeable, with enough mild weather for outdoor plans and enough cool or wet spells to require backup layers.

Outdoor comfort is rainy and less reliable for most travelers. Pack light clothing, sunglasses, a light layer for evenings, a compact umbrella or rain shell. Verdict: September is possible, but it is not one of the easier weather months in Sihanoukville.

October in Sihanoukville

October in Sihanoukville typically brings daytime highs around 83F (28C) and nighttime lows near 79F (26C). Expect heavy rain, averaging about 11.0 inches, and average winds near 5 mph. In real life, the month feels usable but changeable, with enough mild weather for outdoor plans and enough cool or wet spells to require backup layers.

Outdoor comfort is rainy and less reliable for most travelers. Pack light clothing, sunglasses, a light layer for evenings, a compact umbrella or rain shell. Verdict: October is possible, but it is not one of the easier weather months in Sihanoukville.

November in Sihanoukville

November in Sihanoukville typically brings daytime highs around 83F (29C) and nighttime lows near 78F (25C). Expect moderate rain, averaging about 5.8 inches, and average winds near 5 mph. In real life, the month feels usable but changeable, with enough mild weather for outdoor plans and enough cool or wet spells to require backup layers.

Outdoor comfort is good, with a few weather tradeoffs for most travelers. Pack light clothing, sunglasses, a light layer for evenings, a compact umbrella or rain shell. Verdict: November is a good month for weather in Sihanoukville.

December in Sihanoukville

December in Sihanoukville typically brings daytime highs around 83F (28C) and nighttime lows near 76F (24C). Expect some rain, averaging about 2.0 inches, and average winds near 5 mph. In real life, this is one of the easier kinds of city weather, with comfortable walking conditions and only limited weather friction.

Outdoor comfort is the best of the year for most travelers. Pack light clothing, sunglasses, a light layer for evenings. Verdict: December is one of the best weather months in Sihanoukville.

Month-by-Month Weather Table for Sihanoukville

Hottest Time of Year in Sihanoukville

The hottest time of year in Sihanoukville is usually February, March, April, and May. The hottest month in Sihanoukville is March, with average highs near 88F (31C) and nights around 79F (26C). If humidity or strong sun is present, the heat can feel more demanding than the average high suggests.

Early mornings and evenings are usually better than midafternoon during this period. If the hot months overlap with summer vacation or peak travel, the city may still be busy, but from a weather perspective this is not automatically the most comfortable time to visit.

Coldest Time of Year in Sihanoukville

The coldest time of year in Sihanoukville is usually January, February, November, and December. The coldest month in Sihanoukville is January, with average lows near 76F (24C) and daytime highs around 84F (29C). Snow is not the main issue, but cool mornings, wind, rain, or shorter daylight can still affect comfort.

Rainiest, Snowiest, or Most Humid Months in Sihanoukville

The rainiest month is usually July, with about 18.1 inches of rain. This is the month when showers, humidity, storms, or wet pavement are most likely to shape the trip. It can still be possible, but it is less reliable for outdoor-heavy plans.

Driest and Clearest Months in Sihanoukville

The driest month in Sihanoukville is usually February, with about 1.1 inches of precipitation. The broader dry-weather window often includes January, February, and December. These months are generally better for walking, photos, outdoor meals, and day trips because the odds of weather interruptions are lower.

Most Unpredictable Weather Period in Sihanoukville

The most unpredictable weather period in Sihanoukville is usually the summer rainy period. During this stretch, travelers should expect the forecast to matter more than the calendar. Pack flexible layers, check conditions before long walks, and avoid building a trip around only one kind of weather.

Best Weather for First-Time Visitors

For a first-time trip, the best weather window is usually January, February, and December. This period gives the strongest balance of mild temperatures, manageable rain, outdoor comfort, and enough daylight for a relaxed city schedule. It is also the period most likely to answer the question of when is the weather best in Sihanoukville without asking travelers to tolerate the year’s worst heat, cold, or wet weather.

When to Avoid Sihanoukville Because of Weather

Consider avoiding May, June, July, August, September if your trip depends on comfortable walking weather. These months are more likely to be too hot, too cold, too wet, too snowy, or simply less pleasant than the better parts of the year.

Families with kids, older travelers, photographers, and visitors who want to walk a lot should be especially careful with the worst weather months. Travelers who dislike heat should avoid the hottest stretch around February, March, April, and May; travelers who dislike cold should avoid the coldest stretch around January, February, November, and December; travelers who dislike rain should be cautious around July.

Final Weather Verdict: When Should You Visit Sihanoukville?

The best month to visit Sihanoukville for weather is December. The worst month to visit Sihanoukville is July. The best season overall is usually Winter, while the best mild-weather period for a first-time visitor is January, February, and December.

If you want the best month to visit Sihanoukville, choose the month that gives you comfortable daytime temperatures and the lowest risk of weather disrupting outdoor plans. If you are comparing Sihanoukville weather by month, do not look only at the hottest month in Sihanoukville or the coldest month in Sihanoukville. Rain, snow, wind, humidity, and daylight can matter just as much.

For most travelers, the practical answer is simple: visit during the comfortable middle of the Sihanoukville seasons, avoid the most extreme month if you can, and pack for the specific weather pattern of your chosen dates.