Belfast City Weather Forecast 15 Days, Weather in Belfast Today
Current weather conditions and 15 day weather forecast for Belfast, Northern Ireland, UK including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.
Current weather conditions at Belfast
| 23 September 2026 Wednesday 13.5 ° C / 56.4°F  Overcast |
Feels Like : 10.3 ° C / 50.5°F Humidity : % 70 Pressure : 1027 mb Wind Speed : 15.5 kmph / 9.6 miles from WNW  Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15 day weather forecast for Belfast, Northern Ireland, UK
Weather Forecast for next 15 Days for Belfast including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.Here is your temperature trend for the next 15 Days. To see the daily forecast, scroll to the table below.
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 23 September 2026 Wednesday | Overcast |
8.4 ° C | 15.2 ° C | 12 ° C | % 83 | 73% | 2.4 | Sunrise:07:11 AM Sunset: 07:20 PM |
Moonrise:06:27 PM Moonset: 03:18 AM Moon Phase ( Waxing Gibbous ) |
|
| 24 September 2026 Thursday | Overcast |
8.5 ° C | 17.9 ° C | 13.4 ° C | % 81 | 37% | 2.3 | Sunrise:07:13 AM Sunset: 07:18 PM |
Moonrise:06:34 PM Moonset: 04:34 AM Moon Phase ( Full Moon ) |
|
| 25 September 2026 Friday | Overcast |
9.6 ° C | 14.4 ° C | 11.4 ° C | % 85 | 47% | 1 | Sunrise:07:15 AM Sunset: 07:15 PM |
Moonrise:06:41 PM Moonset: 05:49 AM Moon Phase ( Full Moon ) |
|
| 26 September 2026 Saturday |  Patchy rain nearby |
8.5 ° C | 17.3 ° C | 12.6 ° C | % 81 | 36% | 2.2 | Sunrise:07:16 AM Sunset: 07:13 PM |
Moonrise:06:49 PM Moonset: 07:05 AM Moon Phase ( Full Moon ) |
|
| 27 September 2026 Sunday |  Mist |
7.5 ° C | 16.4 ° C | 11.5 ° C | % 88 | 79% | 4 | Sunrise:07:18 AM Sunset: 07:10 PM |
Moonrise:06:57 PM Moonset: 08:22 AM Moon Phase ( Waning Gibbous ) |
|
| 28 September 2026 Monday | Mist |
7.3 ° C | 13.9 ° C | 10 ° C | % 85 | 37% | 3 | Sunrise:07:20 AM Sunset: 07:08 PM |
Moonrise:07:06 PM Moonset: 09:43 AM Moon Phase ( Waning Gibbous ) |
|
| 29 September 2026 Tuesday |  Light rain shower |
8.1 ° C | 14.2 ° C | 11.6 ° C | % 90 | 89% | 3 | Sunrise:07:22 AM Sunset: 07:05 PM |
Moonrise:07:20 PM Moonset: 11:07 AM Moon Phase ( Waning Gibbous ) |
|
| 30 September 2026 Wednesday |  Sunny |
7.5 ° C | 13.8 ° C | 10.4 ° C | % 84 | 59% | 4 | Sunrise:07:24 AM Sunset: 07:03 PM |
Moonrise:07:40 PM Moonset: 12:33 PM Moon Phase ( Waning Gibbous ) |
|
| 01 October 2026 Thursday | Sunny |
5.5 ° C | 11.8 ° C | 7.9 ° C | % 87 | 58% | 4 | Sunrise:07:26 AM Sunset: 07:00 PM |
Moonrise:08:12 PM Moonset: 01:57 PM Moon Phase ( Last Quarter ) |
|
| 02 October 2026 Friday | Overcast |
5.5 ° C | 13.1 ° C | 9.8 ° C | % 85 | 84% | 3 | Sunrise:07:28 AM Sunset: 06:58 PM |
Moonrise:09:01 PM Moonset: 03:11 PM Moon Phase ( Last Quarter ) |
|
| 03 October 2026 Saturday | Light rain shower |
8.9 ° C | 14.7 ° C | 12 ° C | % 92 | 92% | 3 | Sunrise:07:30 AM Sunset: 06:55 PM |
Moonrise:10:12 PM Moonset: 04:07 PM Moon Phase ( Last Quarter ) |
|
| 04 October 2026 Sunday | Light rain shower |
6 ° C | 10.9 ° C | 7.8 ° C | % 89 | 84% | 3 | Sunrise:07:31 AM Sunset: 06:53 PM |
Moonrise:11:40 PM Moonset: 04:43 PM Moon Phase ( Last Quarter ) |
|
| 05 October 2026 Monday | Patchy rain nearby |
6 ° C | 8.6 ° C | 7.2 ° C | % 85 | 78% | 2 | Sunrise:07:33 AM Sunset: 06:50 PM |
Moonrise:Does not rise today Moonset: 05:07 PM Moon Phase ( Waning Crescent ) |
|
| 06 October 2026 Tuesday | Patchy rain nearby |
4.6 ° C | 9.6 ° C | 7.6 ° C | % 91 | 88% | 2 | Sunrise:07:35 AM Sunset: 06:48 PM |
Moonrise:01:15 AM Moonset: 05:23 PM Moon Phase ( Waning Crescent ) |
|
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