Kalmthout

Provincie Antwerpen, Flanders, Belgium

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Current Weather

9°

Mostly Cloudy

Feels Like: 10°

Min: 9°

Max: 23°

The next few hours will be overcast, with today reaching 23°C and dropping to 14°C. The coming days will be partly cloudy

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Hourly Forecast

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8am
9am
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8pm
9pm
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Today
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Daylight Hours

07:42

Sunrise

19:23

Sunset

11 hours 41 minutes of sunlight today

Moon

Waxing Gibbous

18:57

Moonrise

05:53

Moonset

Daily Forecast

Today

9°
23°

Saturday

13°
19°

Sunday

12°
20°

Monday

15°
25°

Tuesday

17°
28°

Wednesday

17°
24°

Thursday

16°
20°

Friday

12°
17°

Saturday

9°
18°

Sunday

9°
18°

Air Quality Data Available

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UV Index

No protection needed
0 Low
Low Extreme

Humidity

91% Very Humid
Low High

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Weather in Kalmthout today, September 25, 2026

Kalmthout 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. Expect a grey start, with morning cloud around 96% by 07:00. Outdoor plans early on should not rely on bright skies.

Temperatures climb from an overnight low near 9°C toward a daytime high of about 23°C. Expect humidity between 48% and 92%, most humid near 07:00. Winds stay light, near 2.6 km/h by 13:00, so the day feels still more than breezy.

Expect a more open afternoon, with limited cloud around 0% by 12:00. Residual damp risk should be lower than earlier. Horizontal visibility sits around 36.3 km, briefly nearer 19.8 km. Daylight runs from 07:42 to 19:23, lasting 11 hours 41 minutes of sunlight today.

Taken together, settled sunshine in Kalmthout on September 25, 2026 makes outdoor timing easier, with highs near 23°C.

Frequently asked questions about weather in Kalmthout

How warm does it get in Kalmthout?

The warmest month in Kalmthout is August, with average high temperatures of 23°C. The average temperature during this period is around 19°C.

How cold does it get in Kalmthout?

The coldest month in Kalmthout 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 Kalmthout?

The wettest month in Kalmthout is October, with an average of 82mm of precipitation.

What is the driest time of year in Kalmthout?

The driest month in Kalmthout is April, with an average of 53mm of precipitation.

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Metric (°C, km/h)