Leuven, Flanders Weather by Month and Climate Averages

Leuven weather by month

Leuven weather in January

In January, Leuven averages a high of 7°C and a low of 2°C. The sun is out about 22% of daylight hours. The January record high is 16°C (2023) and the record low is -9°C (2017).

Leuven weather in March

In March, Leuven averages a high of 12°C and a low of 4°C. The sun is out about 37% of daylight hours. The March record high is 24°C (2021) and the record low is -10°C (2013).

Leuven weather in April

In April, Leuven averages a high of 15°C and a low of 5°C. The sun is out about 40% of daylight hours. The April record high is 27°C (2018) and the record low is -4°C (2013).

Leuven weather in May

In May, Leuven averages a high of 18°C and a low of 8°C. The sun is out about 37% of daylight hours. The May record high is 31°C (2026) and the record low is 0°C (2021).

Leuven weather in June

In June, Leuven averages a high of 21°C and a low of 11°C. The sun is out about 42% of daylight hours. The June record high is 37°C (2026) and the record low is 4°C (2012).

Leuven weather in July

In July, Leuven averages a high of 23°C and a low of 13°C. The sun is out about 36% of daylight hours. The July record high is 38°C (2022) and the record low is 6°C (2019).

Leuven weather in August

In August, Leuven averages a high of 23°C and a low of 13°C. The sun is out about 39% of daylight hours. The August record high is 36°C (2012) and the record low is 8°C (2011).

Leuven weather in September

In September, Leuven averages a high of 19°C and a low of 11°C. The sun is out about 38% of daylight hours. The September record high is 33°C (2024) and the record low is 3°C (2018).

Leuven weather in October

In October, Leuven averages a high of 14°C and a low of 8°C. The sun is out about 26% of daylight hours. The October record high is 27°C (2023) and the record low is -3°C (2012).

Leuven weather in November

In November, Leuven averages a high of 10°C and a low of 4°C. The sun is out about 26% of daylight hours. The November record high is 22°C (2014) and the record low is -4°C (2016).

Leuven weather in December

In December, Leuven averages a high of 7°C and a low of 3°C. The sun is out about 18% of daylight hours. The December record high is 16°C (2022) and the record low is -8°C (2022).

Sunshine, humidity and wind in Leuven

June is the sunniest month in Leuven, with sunshine about 42% of daylight hours. December is the cloudiest, at 18%. Over the year the sun shines about 32% of daylight hours. Leuven is sunnier than 60% of Germany.

Humidity peaks in December at 88% and is lowest in April at 66%.

Leuven has about 4 days a year above 32°C. Leuven is cooler than 56% of Germany.

First and last freeze in Leuven

The first fall freeze in Leuven typically comes around November 21, and the last spring freeze around April 15. That leaves a frost-free growing season of about 220 days.

Leuven weather records

The hottest temperature on record at the Leuven station is 38°C, on July 25, 2019. The coldest is -16°C, on February 7, 2012.

The wettest day on record brought 99 mm of rain, on July 14, 2021.

Leuven climate questions

What is the hottest month in Leuven?

July is the warmest month in Leuven, with an average high of 23°C.

What is the coldest month in Leuven?

January is the coldest month in Leuven, with an average low of 2°C.

What is the record high temperature in Leuven?

The record high at the Leuven station is 38°C, set on July 25, 2019. The record low is -16°C, on February 7, 2012.

What is the sunniest month in Leuven?

June is the sunniest month in Leuven, with sunshine about 42% of daylight hours. December is the cloudiest.

When is the first frost in Leuven?

The first fall freeze in Leuven typically comes around November 21. The last spring freeze is around April 15.