Perth

Stay up to date with the latest weather conditions in Perth. Below you will find current data, forecasts, and helpful weather charts.

The climate in Perth, United Kingdom, can be described as temperate, with four distinct seasons but without extreme temperature fluctuations. The weather remains fairly mild throughout the year, making the city an attractive destination to visit at any time—provided you are prepared for the variability characteristic of British weather.

The summer months, from June to August, are the warmest. During this period, average temperatures range from 12.9°C to 14.5°C, while daily highs can reach a comfortable 16-18°C. Winters, from December to February, are quite cool, with average temperatures between 2.8°C and 3.8°C. Minimum temperatures often drop to 0.4°C - 1.4°C, indicating the possibility of overnight frosts.

A notable feature of Perth's climate is its precipitation pattern. Although monthly rainfall volume is low (averaging 2-4 mm), rainy days are frequent, numbering between 13 and 17 each month. This suggests that instead of heavy downpours, frequent but light or moderate precipitation—such as drizzle or short showers—is more common. As such, visitors should be prepared for the possibility of rain in any season.

The climate in Perth, located in the United Kingdom, is characterized by noticeable seasonal temperature changes but without sharp extremes. The coldest month of the year is traditionally January, with an average air temperature of around 2.8°C. During this period, nighttime temperatures can drop to an average of 0.4°C, and daytime highs rarely exceed 5.2°C. In contrast, the warmest month is July, with an average temperature of 14.5°C; daytime highs average 18.0°C, while nighttime temperatures drop to 11.0°C. Overall, the annual range of average temperatures stretches from near-zero levels in winter to comfortable warmth in summer.

The summer period in Perth, covering June, July, and August, offers moderately warm and generally comfortable weather. Average maximum temperatures in July, the warmest month, reach 18.0°C, while in June and August, they are around 16.6°C and 17.2°C respectively. Nights remain cool, with minimum temperatures in the 9–11°C range. Diurnal temperature fluctuations in summer are quite noticeable: the difference between daytime highs and nighttime lows can be around 6–8°C. The largest fluctuations are observed in April and May, where the difference can reach 7.6°C and 7.9°C respectively.

The winter months—December, January, and February—bring cold weather to Perth. Average daytime temperatures during this period range from 5.2°C (in January) to 6.4°C (in February), while average nighttime temperatures often approach freezing, dropping to 0.4°C in January. The temperature difference between day and night is slightly smaller in winter than in summer, at approximately 4–5°C (for example, 4.8°C in January). This indicates a more stable temperature profile throughout the day during the colder months, although days remain significantly chilly.

Precipitation in Perth is distributed fairly evenly throughout the year, making it difficult to define a specific rainy or dry season. The total monthly rainfall is low, ranging from 2 to 4 mm, which indicates that while precipitation is frequent, it is usually not heavy. Instead, it typically takes the form of the drizzle or light rain characteristic of the region.

In terms of specific months, the highest average rainfall occurs in October and December (4 mm each), while January, April, May, and June are the "driest" months in terms of volume (2 mm each). However, the number of precipitation days tells a different story: March, August, and October lead with 17 "wet" days. The fewest rainy days are seen in January and April—around 13 days. Given that average winter temperatures (December–February) hover near zero and can drop lower, precipitation during this time of year often falls as snow or sleet.

In general, be prepared for frequent precipitation in Perth. Approximately half the days in any given month may see rain, or snow in winter. Therefore, when planning your trip, remember to bring an umbrella or raincoat regardless of the season. Precipitation most often manifests as persistent drizzle or light rain rather than short, intense downpours.

When planning a trip to Perth, it is important to consider its temperate maritime climate and frequent precipitation throughout the year. Regardless of the season, a waterproof and windproof jacket and a compact umbrella are essentials for your suitcase. Since the number of rainy days is quite high (13 to 17 per month), comfortable waterproof walking shoes will be your best companion. Layering is key here, as the weather can be changeable even within a single day, and temperatures rarely reach high levels.

In the summer months (June–August), when average temperatures hover around 13–14.5°C and highs reach 16–18°C, you will need light to medium layers: t-shirts, long-sleeve tops, and a light sweater or fleece for the evenings. Even in summer, don’t forget a light jacket due to frequent rain and potential winds. In winter (December–February), average temperatures drop to 2.8–3.8°C, so warm essentials are necessary: sweaters, fleece jackets, perhaps thermal underwear, as well as a warm winter coat, hat, scarf, and gloves. Spring (March–May) and autumn (September–November) are characterized by cool weather, so layering, a waterproof jacket, and warm sweaters remain essential for a comfortable stay in Perth.