St Ives weather forecast
UK towns · Cornwall, England · 50.21°N 5.48°W
St Ives, in Cornwall, England, has its warmest weather in August, when daytime temperatures average 18.8°C, while January nights are the coldest at around 6°C. The town sees roughly 1192mm 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 | 9.6° | 6° | 101mm | 16 |
| Feb | 10.4° | 7.2° | 113mm | 17 |
| Mar | 10.8° | 7.1° | 101mm | 17 |
| Apr | 12.3° | 7.5° | 65mm | 13 |
| May | 14.6° | 10.1° | 74mm | 14 |
| Jun | 16.9° | 12.7° | 78mm | 15 |
| Jul | 18.3° | 14.3° | 91mm | 19 |
| Aug | 18.8° | 15° | 91mm | 16 |
| Sep | 17.8° | 13.8° | 93mm | 16 |
| Oct | 15.2° | 12.1° | 133mm | 19 |
| Nov | 12.6° | 9.7° | 121mm | 19 |
| Dec | 10.7° | 8° | 131mm | 19 |
Seasons in St Ives
Spring (March–May). Daytime highs in St Ives climb from 10.8°C in March to 14.6°C by May, while nights ease from 7.1°C to 10.1°C. The season brings around 240mm of rain in total.
Summer (June–August). The warmest stretch of the year: afternoons average 18.0°C, peaking in August at 18.8°C. June is usually the driest of the summer months (78mm over ~15 rainy days). Around the June solstice, St Ives gets roughly 16.2 hours of daylight.
Autumn (September–November). Daytime temperatures fall from 17.8°C in September to 12.6°C by November, and rainfall builds to its annual peak — October is the wettest month of the year (133mm).
Winter (December–February). Nights average 7.1°C, with January the coldest month (average low 6°C, daytime high 9.6°C). Expect about 52 days with measurable rain over the three months, and only around 7.8 hours of daylight in mid-December.
How St Ives compares
| St Ives | UK town average | |
|---|---|---|
| Annual rainfall | 1192mm | 1054mm |
| Rainy days per year | 200 | 167 |
| Summer daytime high | 18.0°C | 19.7°C |
| Winter night low | 7.1°C | 3.4°C |
St Ives is about 13% wetter than the average for the 121 UK towns tracked on this site (1054mm), based on 2020–2024 monthly normals.
St Ives weather FAQs
What is the warmest month in St Ives?
August is typically the warmest month in St Ives, with average daytime highs of 18.8°C. Summer afternoons (June–August) average around 18.0°C.
What is the wettest month in St Ives?
October is usually the wettest month, with around 133mm of rain over roughly 19 rainy days. April is typically the driest (65mm).
How much does it rain in St Ives per year?
St Ives receives roughly 1192mm of precipitation per year, spread over about 200 days with at least 1mm of rain (based on 2020–2024 observations).
How cold are winters in St Ives?
Winter nights (December–February) in St Ives average around 7.1°C, with January typically the coldest month (average low 6°C).
When is the best time to visit St Ives for good weather?
Late spring and summer offer the most reliable weather in St Ives. June is typically the driest of the warm months (78mm of rain), while August is the warmest, averaging 18.8°C by day — and near the June solstice there are around 16 hours of daylight to enjoy.
How does St Ives's weather compare with the rest of the UK?
St Ives receives 1192mm of rain a year, about 13% wetter than the average for the 121 UK towns tracked on this site (1054mm). Summer daytime highs average 18.0°C against a UK-town average of 19.7°C, and winter nights average 7.1°C versus 3.4°C.
Is it going to rain in St Ives?
For up-to-the-minute rain tracking, check the live rain radar — as a long-term guide, St Ives averages 200 rainy days a year, with October the wettest month (133mm) and April the driest (65mm).
What is the 7-day forecast for St Ives?
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.