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

Quick Weather Answer: Best and Worst Time to Visit Perth

The best time to visit Perth for weather is usually January, when average daytime temperatures are around 80F (27C) and nights are near 67F (20C). The worst time to visit Perth is usually July, because the weather is less comfortable for long walks, outdoor sightseeing, and casual transit-heavy days.

• Best month for weather: January
• Worst month for weather: July
• Most comfortable season: Spring
• Hottest month: February, with average highs near 81F (27C)
• Coldest month: August, with average lows near 56F (13C)
• Rainiest month: July, with about 5.5 inches of rain
• Driest month: December, with about 0.4 inches of precipitation
• Most unpredictable weather period: the summer rainy period
• Best weather for a first-time trip: January, February, and March

What Is the Weather Like in Perth?

Perth has a relatively mild maritime climate, so extreme temperatures are less common than gray skies, wind, rain, and quick day-to-day changes. The Perth climate by month shows average highs from about 64F (18C) in the coolest part of the year to about 81F (27C) in the hottest part. Annual precipitation averages roughly 26.9 inches.

Weather in Perth 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 Perth for Weather

January is the best month to visit Perth for weather in a typical year. Average daytime highs are near 80F (27C), while nights are around 67F (20C). Precipitation averages 0.6 inches, so the month is usually more comfortable than the wetter, hotter, or colder parts of the year.

What makes January 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 Perth for Weather

July is the worst month to visit Perth from a pure weather perspective. Average highs are around 64F (18C), and nights are near 57F (14C). The month also brings moderate rain, averaging about 5.5 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 Perth.

Perth Weather by Season

Spring Weather in Perth

In Perth, spring covers September, October, and November in local weather terms. Daytime highs typically run from 65F (18C) to 73F (23C), with nights from about 56F (14C) to 61F (16C). Across the season, precipitation averages around 5.2 inches. This is one of the more comfortable stretches of the year for walking, transit transfers, outdoor meals, and photography. The best spring month for weather is usually September, while September is the least comfortable part of the season.

Summer Weather in Perth

In Perth, summer covers December, January, and February in local weather terms. Daytime highs typically run from 77F (25C) to 81F (27C), with nights from about 65F (18C) to 68F (20C). Across the season, precipitation averages around 1.5 inches. This is one of the more comfortable stretches of the year for walking, transit transfers, outdoor meals, and photography. The best summer month for weather is usually December, while December is the least comfortable part of the season.

Fall Weather in Perth

In Perth, fall covers March, April, and May in local weather terms. Daytime highs typically run from 70F (21C) to 79F (26C), with nights from about 61F (16C) to 67F (19C). Across the season, precipitation averages around 5.4 inches. This is one of the more comfortable stretches of the year for walking, transit transfers, outdoor meals, and photography. The best fall month for weather is usually March, while March is the least comfortable part of the season.

Winter Weather in Perth

In Perth, winter covers June, July, and August in local weather terms. Daytime highs typically run from 64F (18C) to 66F (19C), with nights from about 56F (13C) to 58F (15C). Across the season, precipitation averages around 14.8 inches. Rain and humidity shape the season, so outdoor plans need more flexibility than the temperature alone suggests. The best winter month for weather is usually August, while July is the least comfortable part of the season.

Perth Weather by Month: What to Expect

January in Perth

January in Perth typically brings daytime highs around 80F (27C) and nighttime lows near 67F (20C). Expect dry weather, with only about 0.6 inches of rain, and average winds near 13 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: January is one of the best weather months in Perth.

February in Perth

February in Perth typically brings daytime highs around 81F (27C) and nighttime lows near 68F (20C). Expect dry weather, with only about 0.5 inches of rain, and average winds near 12 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: February is a good month for weather in Perth.

March in Perth

March in Perth typically brings daytime highs around 79F (26C) and nighttime lows near 67F (19C). Expect dry weather, with only about 0.8 inches of rain, and average winds near 12 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: March is a good month for weather in Perth.

April in Perth

April in Perth typically brings daytime highs around 74F (24C) and nighttime lows near 64F (18C). Expect some rain, averaging about 1.2 inches, and average winds near 11 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 comfortable layers, a light jacket. Verdict: April is a good month for weather in Perth.

May in Perth

May in Perth typically brings daytime highs around 70F (21C) and nighttime lows near 61F (16C). Expect moderate rain, averaging about 3.3 inches, and average winds near 11 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 comfortable layers, a light jacket, a compact umbrella or rain shell. Verdict: May is a good month for weather in Perth.

June in Perth

June in Perth typically brings daytime highs around 66F (19C) and nighttime lows near 58F (15C). Expect moderate rain, averaging about 5.0 inches, and average winds near 12 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 very comfortable for most travelers. Pack comfortable layers, a light jacket, a compact umbrella or rain shell. Verdict: June is a good month for weather in Perth.

July in Perth

July in Perth typically brings daytime highs around 64F (18C) and nighttime lows near 57F (14C). Expect moderate rain, averaging about 5.5 inches, and average winds near 12 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 still workable, but less reliable than the better months for most travelers. Pack comfortable layers, a light jacket, a compact umbrella or rain shell. Verdict: July is the weakest weather month in Perth, even if prepared travelers can still make it work.

August in Perth

August in Perth typically brings daytime highs around 64F (18C) and nighttime lows near 56F (13C). Expect moderate rain, averaging about 4.2 inches, and average winds near 11 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 very comfortable for most travelers. Pack comfortable layers, a light jacket, a compact umbrella or rain shell. Verdict: August is a good month for weather in Perth.

September in Perth

September in Perth typically brings daytime highs around 65F (18C) and nighttime lows near 56F (14C). Expect some rain, averaging about 2.9 inches, and average winds near 11 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 very comfortable for most travelers. Pack comfortable layers, a light jacket. Verdict: September is a good month for weather in Perth.

October in Perth

October in Perth typically brings daytime highs around 68F (20C) and nighttime lows near 58F (14C). Expect some rain, averaging about 1.4 inches, and average winds near 12 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 comfortable layers, a light jacket. Verdict: October is a good month for weather in Perth.

November in Perth

November in Perth typically brings daytime highs around 73F (23C) and nighttime lows near 61F (16C). Expect dry weather, with only about 0.9 inches of rain, and average winds near 12 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 comfortable layers, a light jacket. Verdict: November is a good month for weather in Perth.

December in Perth

December in Perth typically brings daytime highs around 77F (25C) and nighttime lows near 65F (18C). Expect dry weather, with only about 0.4 inches of rain, and average winds near 12 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: December is a good month for weather in Perth.

Month-by-Month Weather Table for Perth

Hottest Time of Year in Perth

The hottest time of year in Perth is usually January, February, and March. The hottest month in Perth is February, with average highs near 81F (27C) and nights around 68F (20C). 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 Perth

The coldest time of year in Perth is usually June, July, August, September, and October. The coldest month in Perth is August, with average lows near 56F (13C) and daytime highs around 64F (18C). 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 Perth

The rainiest month is usually July, with about 5.5 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 Perth

The driest month in Perth is usually December, with about 0.4 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 Perth

The most unpredictable weather period in Perth 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 March. 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 Perth without asking travelers to tolerate the year’s worst heat, cold, or wet weather.

When to Avoid Perth Because of Weather

Consider avoiding July 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 January, February, and March; travelers who dislike cold should avoid the coldest stretch around June, July, August, September, and October; travelers who dislike rain should be cautious around July.

Final Weather Verdict: When Should You Visit Perth?

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

If you want the best month to visit Perth, choose the month that gives you comfortable daytime temperatures and the lowest risk of weather disrupting outdoor plans. If you are comparing Perth weather by month, do not look only at the hottest month in Perth or the coldest month in Perth. 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 Perth seasons, avoid the most extreme month if you can, and pack for the specific weather pattern of your chosen dates.