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Hourly Forecast
Daylight Hours
06:32
Sunrise
18:46
Sunset
Moon
Waxing Crescent
12:33
Moonrise
20:42
Moonset
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Weather in Londonderry today, September 16, 2026
Londonderry sees a largely clear day on September 16, 2026, interrupted by cloudier skies around 20:00. Plan for bright conditions either side of that cloudier interval.
The day peaks near 26°C and cools toward 10°C. Moisture in the air spans 44%-88%, with the highest values around 23:00. Airflow remains manageable, reaching about 2.3 km/h around 17:00.
Through the afternoon skies look more workable, with cloud near 33% around 20:00. Later outdoor plans have a clearer window than the morning may have suggested. Views remain open at about 16.1 km. Sunrise is at 06:32 and sunset at 18:46, giving 12 hours 13 minutes of sunlight today.
The practical takeaway for Londonderry is a bright September 16, 2026, ideal for outdoor errands before temperatures ease from about 26°C.
Frequently asked questions about weather in Londonderry
How warm does it get in Londonderry?
The warmest month in Londonderry is July, with average high temperatures of 29°C. The average temperature during this period is around 24°C.
How cold does it get in Londonderry?
The coldest month in Londonderry is January, with average low temperatures of -5°C. The average temperature during this period is around -2°C.
What is the wettest time of year in Londonderry?
The wettest month in Londonderry is December, with an average of 119mm of precipitation.
What is the driest time of year in Londonderry?
The driest month in Londonderry is September, with an average of 78mm of precipitation.
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