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Hourly Forecast
Daylight Hours
07:40
Sunrise
19:21
Sunset
Moon
Waxing Gibbous
18:55
Moonrise
05:51
Moonset
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View stargazing scoreWeather in Alphen today, September 25, 2026
Alphen is set for a fine, sunny day on September 25, 2026, with only limited interruptions to the clear sky. The early hours look particularly favourable for being outside. Cloud leads the morning, peaking close to 100% near 06:00. Sunshine has little room until later in the day.
The temperature range runs from about 9°C up to 22°C. Relative humidity sits between 48% and 93%, reaching its peak around 05:00. Airflow remains manageable, reaching about 2.8 km/h around 14:00.
Afternoon conditions open up, holding cloud close to 1% near 12:00. The day finishes on a milder, brighter note. Expect visibility near 34.5 km, with poorer spells close to 18.4 km. Daylight runs from 07:40 to 19:21, lasting 11 hours 41 minutes of sunlight today.
The practical takeaway for Alphen is a bright September 25, 2026, ideal for outdoor errands before temperatures ease from about 22°C.
Frequently asked questions about weather in Alphen
How warm does it get in Alphen?
The warmest month in Alphen is August, with average high temperatures of 24°C. The average temperature during this period is around 19°C.
How cold does it get in Alphen?
The coldest month in Alphen is January, with average low temperatures of 2°C. The average temperature during this period is around 4°C.
What is the wettest time of year in Alphen?
The wettest month in Alphen is October, with an average of 81mm of precipitation.
What is the driest time of year in Alphen?
The driest month in Alphen is April, with an average of 55mm of precipitation.
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