Weather radar Southampton
Real-time precipitation radar · England · United Kingdom
Southampton climate table – average temperature, precipitation & sunshine hours
The climate table for Southampton shows long-term monthly averages (2000–2023): average high and average low temperature in °C, monthly precipitation (mm), rainy days and sunshine hours per month. Data source: ERA5 reanalysis (ECMWF) via the WDTEC Climate Archive.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 8° | 9.9° | 11.6° | 13.9° | 17.3° | 21.1° | 22.4° | 22.2° | 19.7° | 16.2° | 11.7° | 9.7° |
| Avg low (°C) | 2.6° | 4.6° | 5.1° | 5.5° | 9.2° | 12.3° | 14.2° | 13.9° | 12.2° | 10.2° | 6.4° | 5.4° |
| Precipitation (mm) | 73 | 55 | 59 | 48 | 62 | 67 | 58 | 45 | 88 | 107 | 86 | 74 |
| Rainy days | 11 | 11 | 11 | 10 | 13 | 9 | 11 | 8 | 13 | 14 | 12 | 11 |
| Sunshine hours | 120 | 129 | 218 | 295 | 336 | 350 | 346 | 306 | 243 | 192 | 136 | 91 |
| Humidity | 87% | 85% | 81% | 74% | 76% | 74% | 74% | 76% | 81% | 86% | 87% | 88% |
Best time to visit Southampton
The best time to visit Southampton is typically August. In this month the average high is 22.2°C, precipitation is 45 mm and sunshine duration is 306 hours. The annual average high is 15.3°C, total annual precipitation is 822 mm (134 rainy days/year) and annual sunshine is 2762 hours.
Frequently asked questions about the weather in Southampton
How up to date is the weather radar for Southampton?
The weather radar for Southampton is updated every 5 minutes with new radar data from the OPERA composite radar. A 2-hour forecast animation is also available. Rainfall probability, wind gusts and UV index are available up to 14 days in advance.
What weather data is available for Southampton?
Besides the rain radar, RadarWeather provides for Southampton: rainfall probability, thunderstorm warning (CAPE index), wind gusts, UV index, air pressure, humidity, dew point, sunshine hours, snow line and a 14-day forecast based on ICON-D2, ECMWF IFS and GFS.
When are thunderstorms expected in Southampton?
The thunderstorm potential for Southampton is calculated from the CAPE index and lightning potential. Active storm cells and severe weather warnings are visible on the radar map in real time. Thunderstorm warnings are issued automatically as soon as storm cells are detected near Southampton.
What is the climate like in Southampton?
Southampton has an annual average high of 15.3°C. The warmest month is July (avg high 22.4°C), the coldest January (avg low 2.6°C). The wettest month is October with 107 mm, the driest August with 45 mm. Total annual precipitation is 822 mm (134 rainy days). Annual sunshine is 2762 hours.
Weather radar near Southampton
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