Weather radar Belfast
Real-time precipitation radar · Nordirland · United Kingdom
Belfast climate table – average temperature, precipitation & sunshine hours
The climate table for Belfast 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) | 7.8° | 9.2° | 10.4° | 12° | 15.2° | 17.5° | 18.7° | 18.7° | 16.8° | 14.2° | 11° | 9.1° |
| Avg low (°C) | 4° | 5.2° | 5.5° | 6.2° | 9.2° | 11.7° | 13.2° | 13.2° | 11.8° | 10.1° | 7° | 5.6° |
| Precipitation (mm) | 62 | 73 | 67 | 64 | 68 | 68 | 80 | 80 | 95 | 107 | 80 | 92 |
| Rainy days | 11 | 14 | 14 | 13 | 14 | 15 | 15 | 14 | 14 | 17 | 14 | 15 |
| Sunshine hours | 128 | 128 | 206 | 274 | 323 | 318 | 298 | 289 | 218 | 148 | 121 | 86 |
| Humidity | 86% | 83% | 81% | 78% | 79% | 78% | 81% | 81% | 83% | 85% | 86% | 87% |
Best time to visit Belfast
The best time to visit Belfast is typically May. In this month the average high is 15.2°C, precipitation is 68 mm and sunshine duration is 323 hours. The annual average high is 13.4°C, total annual precipitation is 936 mm (170 rainy days/year) and annual sunshine is 2537 hours.
Frequently asked questions about the weather in Belfast
How up to date is the weather radar for Belfast?
The weather radar for Belfast 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 Belfast?
Besides the rain radar, RadarWeather provides for Belfast: 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 Belfast?
The thunderstorm potential for Belfast 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 Belfast.
What is the climate like in Belfast?
Belfast has an annual average high of 13.4°C. The warmest month is July (avg high 18.7°C), the coldest January (avg low 4°C). The wettest month is October with 107 mm, the driest January with 62 mm. Total annual precipitation is 936 mm (170 rainy days). Annual sunshine is 2537 hours.
Weather radar near Belfast
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