Perth weather forecast
UK towns · Scotland · 56.40°N 3.43°W
Perth, in Scotland, has its warmest weather in July, when daytime temperatures average 18.8°C, while January nights are the coldest at around 1°C. The town sees roughly 1022mm of rain a year; October is normally the wettest month and April the driest. Figures are averaged from 2020–2024 observations.
Climate averages
| Month | Avg high | Avg low | Rain | Rain days |
|---|---|---|---|---|
| Jan | 6.1° | 1° | 69mm | 12 |
| Feb | 7.4° | 1.8° | 106mm | 15 |
| Mar | 9.2° | 2° | 71mm | 15 |
| Apr | 11.3° | 2.8° | 52mm | 10 |
| May | 15° | 7.2° | 84mm | 15 |
| Jun | 17.6° | 9.9° | 61mm | 13 |
| Jul | 18.8° | 11.2° | 84mm | 15 |
| Aug | 18.5° | 11.3° | 83mm | 14 |
| Sep | 16.6° | 9.3° | 64mm | 11 |
| Oct | 12.6° | 6.9° | 151mm | 18 |
| Nov | 9.2° | 3.5° | 80mm | 12 |
| Dec | 6.2° | 1.5° | 117mm | 17 |
Seasons in Perth
Spring (March–May). Daytime highs in Perth climb from 9.2°C in March to 15°C by May, while nights ease from 2°C to 7.2°C. The season brings around 207mm of rain in total.
Summer (June–August). The warmest stretch of the year: afternoons average 18.3°C, peaking in July at 18.8°C. June is usually the driest of the summer months (61mm over ~13 rainy days). Around the June solstice, Perth gets roughly 17.4 hours of daylight.
Autumn (September–November). Daytime temperatures fall from 16.6°C in September to 9.2°C by November, and rainfall builds to its annual peak — October is the wettest month of the year (151mm).
Winter (December–February). Nights average 1.4°C, with January the coldest month (average low 1°C, daytime high 6.1°C). Expect about 44 days with measurable rain over the three months, and only around 6.6 hours of daylight in mid-December.
How Perth compares
| Perth | UK town average | |
|---|---|---|
| Annual rainfall | 1022mm | 1054mm |
| Rainy days per year | 167 | 167 |
| Summer daytime high | 18.3°C | 19.7°C |
| Winter night low | 1.4°C | 3.4°C |
Perth is almost exactly in line with the average for the 121 UK towns tracked on this site (1054mm), based on 2020–2024 monthly normals.
Perth weather FAQs
What is the warmest month in Perth?
July is typically the warmest month in Perth, with average daytime highs of 18.8°C. Summer afternoons (June–August) average around 18.3°C.
What is the wettest month in Perth?
October is usually the wettest month, with around 151mm of rain over roughly 18 rainy days. April is typically the driest (52mm).
How much does it rain in Perth per year?
Perth receives roughly 1022mm of precipitation per year, spread over about 167 days with at least 1mm of rain (based on 2020–2024 observations).
How cold are winters in Perth?
Winter nights (December–February) in Perth average around 1.4°C, with January typically the coldest month (average low 1°C).
When is the best time to visit Perth for good weather?
Late spring and summer offer the most reliable weather in Perth. June is typically the driest of the warm months (61mm of rain), while July is the warmest, averaging 18.8°C by day — and near the June solstice there are around 17 hours of daylight to enjoy.
How does Perth's weather compare with the rest of the UK?
Perth receives 1022mm of rain a year, almost exactly in line with the average for the 121 UK towns tracked on this site (1054mm). Summer daytime highs average 18.3°C against a UK-town average of 19.7°C, and winter nights average 1.4°C versus 3.4°C.
Is it going to rain in Perth?
For up-to-the-minute rain tracking, check the live rain radar — as a long-term guide, Perth averages 167 rainy days a year, with October the wettest month (151mm) and April the driest (52mm).
What is the 7-day forecast for Perth?
See the live hourly and 7-day forecast for day-by-day temperatures and rain chance. The figures on this page are long-term climate averages from 2020–2024, not the live forecast.