Southend-on-Sea weather forecast
UK towns · Essex, England · 51.55°N 0.71°E
Southend-on-Sea, in Essex, England, has its warmest weather in August, when daytime temperatures average 22.8°C, while January nights are the coldest at around 2.6°C. The town sees roughly 742mm 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 | 8° | 2.6° | 59mm | 11 |
| Feb | 10.1° | 4.1° | 60mm | 12 |
| Mar | 11° | 4.5° | 60mm | 13 |
| Apr | 13.1° | 5.3° | 44mm | 9 |
| May | 17.1° | 8.8° | 51mm | 12 |
| Jun | 20.7° | 12.1° | 56mm | 9 |
| Jul | 22.4° | 14.2° | 60mm | 13 |
| Aug | 22.8° | 14.8° | 57mm | 8 |
| Sep | 20.3° | 12.8° | 55mm | 11 |
| Oct | 16.2° | 9.9° | 98mm | 14 |
| Nov | 11.5° | 6.1° | 73mm | 11 |
| Dec | 8.9° | 4.3° | 69mm | 13 |
Seasons in Southend-on-Sea
Spring (March–May). Daytime highs in Southend-on-Sea climb from 11°C in March to 17.1°C by May, while nights ease from 4.5°C to 8.8°C. The season brings around 155mm of rain in total.
Summer (June–August). The warmest stretch of the year: afternoons average 22.0°C, peaking in August at 22.8°C. June is usually the driest of the summer months (56mm over ~9 rainy days). Around the June solstice, Southend-on-Sea gets roughly 16.4 hours of daylight.
Autumn (September–November). Daytime temperatures fall from 20.3°C in September to 11.5°C by November, and rainfall builds to its annual peak — October is the wettest month of the year (98mm).
Winter (December–February). Nights average 3.7°C, with January the coldest month (average low 2.6°C, daytime high 8°C). Expect about 36 days with measurable rain over the three months, and only around 7.6 hours of daylight in mid-December.
How Southend-on-Sea compares
| Southend-on-Sea | UK town average | |
|---|---|---|
| Annual rainfall | 742mm | 1054mm |
| Rainy days per year | 136 | 167 |
| Summer daytime high | 22.0°C | 19.7°C |
| Winter night low | 3.7°C | 3.4°C |
Southend-on-Sea is about 30% drier than the average for the 121 UK towns tracked on this site (1054mm), based on 2020–2024 monthly normals.
Southend-on-Sea weather FAQs
What is the warmest month in Southend-on-Sea?
August is typically the warmest month in Southend-on-Sea, with average daytime highs of 22.8°C. Summer afternoons (June–August) average around 22.0°C.
What is the wettest month in Southend-on-Sea?
October is usually the wettest month, with around 98mm of rain over roughly 14 rainy days. April is typically the driest (44mm).
How much does it rain in Southend-on-Sea per year?
Southend-on-Sea receives roughly 742mm of precipitation per year, spread over about 136 days with at least 1mm of rain (based on 2020–2024 observations).
How cold are winters in Southend-on-Sea?
Winter nights (December–February) in Southend-on-Sea average around 3.7°C, with January typically the coldest month (average low 2.6°C).
When is the best time to visit Southend-on-Sea for good weather?
Late spring and summer offer the most reliable weather in Southend-on-Sea. June is typically the driest of the warm months (56mm of rain), while August is the warmest, averaging 22.8°C by day — and near the June solstice there are around 16 hours of daylight to enjoy.
How does Southend-on-Sea's weather compare with the rest of the UK?
Southend-on-Sea receives 742mm of rain a year, about 30% drier than the average for the 121 UK towns tracked on this site (1054mm). Summer daytime highs average 22.0°C against a UK-town average of 19.7°C, and winter nights average 3.7°C versus 3.4°C.
Is it going to rain in Southend-on-Sea?
For up-to-the-minute rain tracking, check the live rain radar — as a long-term guide, Southend-on-Sea averages 136 rainy days a year, with October the wettest month (98mm) and April the driest (44mm).
What is the 7-day forecast for Southend-on-Sea?
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.