March weather forecast
Brussels, Belgium

As the icy clutches of winter start to dissipate, March ushers in gradually rising temperatures, reaching an average high of 10.4°C (50.7°F). The occasional appearance of warming sunshine contributes to the onset of spring, even though the average relative humidity remains relatively high. Visitors during March can still expect numerous rainy days, and the weather retains its unpredictability. The tilt of the planet allows Brussels slightly more daylight hours, marking a shift towards brighter days. Importantly, snowfall chances reduce drastically in comparison to the two prior months.

Temperature

The transition from February to March brings a subtle temperature rise, with average high-temperatures increasing from a frosty 6.6°C (43.9°F) to a cool 10.4°C (50.7°F). In the month of March, an average of 3.1°C (37.6°F) marks the low-temperature.

Humidity

The average relative humidity in March is 78.5%.

Rainfall

In March, the rain falls for 17.8 days. Throughout March, 70mm (2.76") of precipitation is accumulated. Throughout the year, in Brussels, there are 199.6 rainfall days, and 853mm (33.58") of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. In March, snow falls for 3.2 days. In Brussels, during the entire year, snow falls for 23.7 days.

Daylight

In March, the average length of the day in Brussels is 11h and 55min.
On the first day of March in Brussels, sunrise is at 07:25 and sunset at 18:24. On the last day of the month, sunrise is at 06:19 and sunset at 19:14 CET.

Sunshine

In Brussels, the average sunshine in March is 3.7h.

UV index

In Brussels, Belgium, the average daily maximum UV index in March is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: In March, the maximum UV index of 3 transforms into these recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.