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Hourly Forecast
Daylight Hours
06:43
Sunrise
18:56
Sunset
Moon
Waxing Crescent
12:44
Moonrise
20:53
Moonset
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Weather in Rotterdam today, September 16, 2026
Cloud cover dominates in Rotterdam on September 16, 2026, keeping sunshine limited. Expect a grey, overcast feel rather than long bright spells. The morning sky stays heavily clouded, with cover near 89% around 10:00. Grey conditions set the early tone before any later change.
Expect highs of 25°C and cooler readings close to 13°C. Relative humidity sits between 70% and 88%, reaching its peak around 23:00. Winds stay light, near 2.4 km/h by 14:00, so the day feels still more than breezy.
Afternoon skies stay clogged, peaking close to 100% near 12:00. The grey theme continues rather than clearing out. Visibility holds near 16.0 km, though it can fall to 14.5 km. Expect sunrise at 06:43, sunset at 18:56, and 12 hours 13 minutes of sunlight today overall.
In short, cloud leads the story in Rotterdam on September 16, 2026; expect limited sun and a peak around 25°C.
Frequently asked questions about weather in Rotterdam
How warm does it get in Rotterdam?
The warmest month in Rotterdam is July, with average high temperatures of 28°C. The average temperature during this period is around 23°C.
How cold does it get in Rotterdam?
The coldest month in Rotterdam is January, with average low temperatures of -6°C. The average temperature during this period is around -3°C.
What is the wettest time of year in Rotterdam?
The wettest month in Rotterdam is July, with an average of 136mm of precipitation.
What is the driest time of year in Rotterdam?
The driest month in Rotterdam is January, with an average of 82mm of precipitation.
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