See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
23°
Mostly Cloudy
Feels Like: 24°
Min: 20°
Max: 26°
The next few hours will be mostly cloudy, with today reaching 26°C and dropping to 18°C. The coming days will be mostly clear
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:39
Sunrise
19:52
Sunset
Moon
Waxing Crescent
13:21
Moonrise
22:21
Moonset
Daily Forecast
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Thursday
Friday
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Sunday
Monday
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Weather in Castellar del Vallès today, September 16, 2026
Castellar del Vallès looks damp on September 16, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly. The morning sky stays heavily clouded, with cover near 85% around 11:00. Grey conditions set the early tone before any later change.
Expect highs of 26°C and cooler readings close to 20°C. Expect humidity between 63% and 95%, most humid near 21:00. Winds stay light, near 4.5 km/h by 15:00, so the day feels still more than breezy.
Afternoon showers stay in play, peaking near 98% around 18:00. Skies remain cluttered, with cover about 100% by 16:00. Horizontal visibility sits around 24.0 km, briefly nearer 4.0 km. Expect sunrise at 07:39, sunset at 19:52, and 12 hours 12 minutes of sunlight today overall.
Overall, Castellar del Vallès on September 16, 2026 suits indoor plans or waterproof kit, especially while rain chances stay near 98% and the high sits around 26°C.
Frequently asked questions about weather in Castellar del Vallès
How warm does it get in Castellar del Vallès?
The warmest month in Castellar del Vallès is August, with average high temperatures of 29°C. The average temperature during this period is around 25°C.
How cold does it get in Castellar del Vallès?
The coldest month in Castellar del Vallès is January, with average low temperatures of 3°C. The average temperature during this period is around 8°C.
What is the wettest time of year in Castellar del Vallès?
The wettest month in Castellar del Vallès is October, with an average of 102mm of precipitation.
What is the driest time of year in Castellar del Vallès?
The driest month in Castellar del Vallès is December, with an average of 32mm of precipitation.
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