Weather radar San Sebastián
Real-time precipitation radar · Baskenland · Spain
San Sebastián climate table – average temperature, precipitation & sunshine hours
The climate table for San Sebastián 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) | 12.5° | 14.5° | 15.5° | 16.7° | 19.3° | 23.1° | 24.3° | 25.1° | 23.4° | 21.7° | 16.2° | 14.3° |
| Avg low (°C) | 7.7° | 9° | 10.1° | 10.9° | 13.5° | 17.5° | 18.6° | 19.2° | 17.5° | 15.6° | 11.7° | 9.9° |
| Precipitation (mm) | 150 | 98 | 110 | 99 | 106 | 136 | 56 | 101 | 139 | 120 | 200 | 162 |
| Rainy days | 16 | 13 | 17 | 14 | 18 | 17 | 13 | 13 | 16 | 11 | 17 | 16 |
| Sunshine hours | 180 | 204 | 267 | 292 | 341 | 311 | 349 | 328 | 275 | 241 | 177 | 171 |
| Humidity | 79% | 77% | 74% | 77% | 81% | 84% | 82% | 82% | 79% | 78% | 80% | 81% |
Best time to visit San Sebastián
The best time to visit San Sebastián is typically July. In this month the average high is 24.3°C, precipitation is 56 mm and sunshine duration is 349 hours. The annual average high is 18.9°C, total annual precipitation is 1477 mm (181 rainy days/year) and annual sunshine is 3136 hours.
Frequently asked questions about the weather in San Sebastián
How up to date is the weather radar for San Sebastián?
The weather radar for San Sebastián 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 San Sebastián?
Besides the rain radar, RadarWeather provides for San Sebastián: 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 San Sebastián?
The thunderstorm potential for San Sebastián 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 San Sebastián.
What is the climate like in San Sebastián?
San Sebastián has an annual average high of 18.9°C. The warmest month is August (avg high 25.1°C), the coldest January (avg low 7.7°C). The wettest month is November with 200 mm, the driest July with 56 mm. Total annual precipitation is 1477 mm (181 rainy days). Annual sunshine is 3136 hours.