Altnagelvin Weather Forecast
- 10
- 17
Light rain shower
- 12
- 15
Cloudy
- 9
- 15
Light rain shower
- 12
- 15
Cloudy
- 13
- 16
Overcast
- 12
- 16
Overcast
Today 30 Sep Northern Ireland
A dry morning with prolonged sunny spells. A little cloudier in the afternoon with bright or sunny intervals and showers possible. Brisk winds. Maximum temperature 18 °C.
Altnagelvin Temperature Statistics
September Temperature
Magilligan No 2 (29km)
Lowest 23 September, 2026
7.7 °CAverage September
14.3 °CHighest 6 September, 2026
22.4 °C
Climate (2021–2026)
Magilligan No 2 (29km)
Average Low 2021–2026
7.7 °CAverage 2021–2026
10.6 °CAverage High 2021–2026
13.4 °C