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Weather in Rotselaar
Flemish Brabant, 14 m · continuously updated
Zaventem (Melsbroek) (15 km) · 10 °C · KMI/IRM 14:00
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Temperature · last 4 and next 28 hours
Rotselaar weather: the next 24 hours
Updated hourly.
Rotselaar 15-day forecast
Two-week trend.
Sun and golden hours
Sunrise –, golden light until –
Sunset –, golden light from –
–
Air quality
European index, modelled by Copernicus (CAMS).
UV index
Daily maximum — protection advised from 3.
Freezing level
Snow settles about 300 m below it.
Around Rotselaar
Neighbouring towns, as the crow flies.
Official weather warnings
No active warning for Flemish Brabant.
Updated 15 Nov 13:48.
Is there an active weather warning for Rotselaar?
No active warning for Flemish Brabant.
Latest RMI observation near Rotselaar
Measured at Zaventem (Melsbroek), 15 km from Rotselaar: situation as of 15 November 2026, 14:00. Zaventem (Melsbroek) is the nearest weather station of the RMI/KMI (Royal Meteorological Institute of Belgium), one of the country's 28 synoptic stations. These are measured values, not a forecast; this page is refreshed three times a day, hence the time shown.
| Situation as of | 15 November 2026, 14:00 |
|---|---|
| Temperature | 9.5 °C |
| Wind | 29 km/h S |
| Gusts | 40 km/h |
| Rain, last hour | — |
| Humidity | — |
| Pressure | 1003 hPa |
Observations from the 28 RMI stations
Source: RMI/KMI (Royal Meteorological Institute of Belgium), open observation data, Creative Commons Attribution 4.0 (CC BY 4.0) licence. The RMI is not liable for any damage resulting from the use of these data. Raw, unvalidated data shown as published, with wind converted from m/s to km/h. Data: opendata.meteo.be · CC BY 4.0
The observed climate near Rotselaar
The weather station nearest to Rotselaar, Beauvechain located 127 m above sea level, is 28 km away; its records cover 1954–2013. In November, the mean temperature there is 6.8 °C over 1991–2020, 1.1 °C more than over 1961–1990 (5.7 °C), with about – mm of rain. The warmest month ever measured is July 2006 (22.3 °C), the coldest February 1956 (−7.2 °C). See the full series of Beauvechain
Today in Rotselaar
- No washing outside today: rain, or a risk of rain, covers the hours when it could dry. How it is calculated
- Terrace and barbecue between 18:00 and 23:00: rain likely (2.2 mm, up to 92 % chance). Have some shelter or a plan B ready. How it is calculated
- Best time to air the house: tomorrow, between 11:00 and 14:00. The outdoor dew point drops to 4.6 °C; once warmed to 20 °C, that air holds only 36 % humidity, against 50 % in a typical home: opening the windows dries the house. How it is calculated
- Garden: 29.4 mm of rain expected within 48 h, against a need of 1.1 mm. No need to water, the rain will do it. How it is calculated
Calculated from Open-Meteo forecasts of 2026-11-15 14:48 (local time): model values, not measurements. All of today's advice
7-day forecast for Rotselaar
Today (Sunday 15 Nov) in Rotselaar: light rain, 1 to 10 °C, precipitation 3.4 mm (92 %), wind up to 20 km/h. Tomorrow: rain, 4 to 10 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Today | light rain | 1 °C | 10 °C | 3.4 mm | 20 km/h |
| Tomorrow | rain | 4 °C | 10 °C | 5.9 mm | 27 km/h |
| Tue 17 Nov | rain | 4 °C | 14 °C | 23.8 mm | 34 km/h |
| Wed 18 Nov | light drizzle | 8 °C | 12 °C | 1.7 mm | 23 km/h |
| Thu 19 Nov | showers | 8 °C | 10 °C | 12.7 mm | 22 km/h |
| Fri 20 Nov | showers | 2 °C | 8 °C | 27.1 mm | 17 km/h |
| Sat 21 Nov | overcast | 0 °C | 10 °C | 0.0 mm | 9 km/h |
Tomorrow's weather in Rotselaar
Tomorrow, Monday 16 Nov, in Rotselaar: rain, from 4 to 10 °C, 5.9 mm of precipitation (probability 61 %), wind up to 27 km/h.
| Hour | Weather | Temp. | Precip. | Chance | Wind |
|---|---|---|---|---|---|
| 00:00 |  overcast | 10 °C | 0.0 mm | 57 % | 13 km/h |
| 03:00 |  light drizzle | 9 °C | 0.2 mm | 49 % | 17 km/h |
| 06:00 | light drizzle | 9 °C | 0.4 mm | 60 % | 24 km/h |
| 09:00 | overcast | 8 °C | 0.0 mm | 44 % | 23 km/h |
| 12:00 | overcast | 8 °C | 0.0 mm | 28 % | 20 km/h |
| 15:00 | overcast | 7 °C | 0.0 mm | 15 % | 20 km/h |
| 18:00 | overcast | 5 °C | 0.0 mm | 11 % | 14 km/h |
| 21:00 | overcast | 4 °C | 0.0 mm | 17 % | 7 km/h |
Frequently asked questions
Will it rain tomorrow in Rotselaar?
Yes: 5.9 mm expected, probability 61 %.
How warm will it be tomorrow in Rotselaar?
Between 4 and 10 °C.
The weekend
Today, Sunday, in Rotselaar: light rain, 1 to 10 °C. Next weekend: Saturday overcast, 0 to 10 °C, Sunday drizzle, 4 to 9 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Today |  light rain | 1 °C | 10 °C | 3.4 mm | 20 km/h |
| Sat 21 Nov | overcast | 0 °C | 10 °C | 0.0 mm | 9 km/h |
| Sun 22 Nov | drizzle | 4 °C | 9 °C | 6.8 mm | 21 km/h |
Hour by hour
The next 48 hours in Rotselaar, hour by hour: temperature from 4 to 13 °C, 29.4 mm of rain expected.
| Hour | Weather | Temp. | Precip. | Chance | Wind |
|---|---|---|---|---|---|
| 14:00 | overcast | 9 °C | 0.0 mm | 7 % | 17 km/h |
| 15:00 | overcast | 10 °C | 0.0 mm | 17 % | 19 km/h |
| 16:00 | overcast | 10 °C | 0.0 mm | 31 % | 20 km/h |
| 17:00 | heavy drizzle | 10 °C | 1.0 mm | 52 % | 17 km/h |
| 18:00 | light rain | 10 °C | 1.5 mm | 76 % | 17 km/h |
| 19:00 | drizzle | 10 °C | 0.6 mm | 92 % | 19 km/h |
| 20:00 | light drizzle | 10 °C | 0.1 mm | 92 % | 15 km/h |
| 21:00 | overcast | 10 °C | 0.0 mm | 84 % | 16 km/h |
| 22:00 | overcast | 10 °C | 0.0 mm | 75 % | 15 km/h |
| 23:00 | overcast | 10 °C | 0.0 mm | 67 % | 15 km/h |
| 00:00 | overcast | 10 °C | 0.0 mm | 57 % | 13 km/h |
| 01:00 | light drizzle | 10 °C | 0.2 mm | 51 % | 13 km/h |
| 02:00 | light drizzle | 10 °C | 0.1 mm | 49 % | 16 km/h |
| 03:00 | light drizzle | 9 °C | 0.2 mm | 49 % | 17 km/h |
| 04:00 | light rain | 9 °C | 1.7 mm | 51 % | 16 km/h |
| 05:00 | rain | 9 °C | 3.1 mm | 55 % | 26 km/h |
| 06:00 | light drizzle | 9 °C | 0.4 mm | 60 % | 24 km/h |
| 07:00 | light drizzle | 8 °C | 0.2 mm | 61 % | 24 km/h |
| 08:00 | overcast | 8 °C | 0.0 mm | 54 % | 27 km/h |
| 09:00 | overcast | 8 °C | 0.0 mm | 44 % | 23 km/h |
| 10:00 | overcast | 8 °C | 0.0 mm | 35 % | 22 km/h |
| 11:00 | overcast | 8 °C | 0.0 mm | 31 % | 23 km/h |
| 12:00 | overcast | 8 °C | 0.0 mm | 28 % | 20 km/h |
| 13:00 |  partly cloudy | 8 °C | 0.0 mm | 25 % | 20 km/h |
| 14:00 | partly cloudy | 8 °C | 0.0 mm | 20 % | 21 km/h |
| 15:00 | overcast | 7 °C | 0.0 mm | 15 % | 20 km/h |
| 16:00 |  sunny | 7 °C | 0.0 mm | 12 % | 16 km/h |
| 17:00 | overcast | 6 °C | 0.0 mm | 11 % | 16 km/h |
| 18:00 | overcast | 5 °C | 0.0 mm | 11 % | 14 km/h |
| 19:00 | overcast | 4 °C | 0.0 mm | 12 % | 11 km/h |
| 20:00 | overcast | 4 °C | 0.0 mm | 14 % | 7 km/h |
| 21:00 | overcast | 4 °C | 0.0 mm | 17 % | 7 km/h |
| 22:00 | overcast | 4 °C | 0.0 mm | 22 % | 7 km/h |
| 23:00 | overcast | 4 °C | 0.0 mm | 28 % | 5 km/h |
| 00:00 | light drizzle | 4 °C | 0.2 mm | 36 % | 7 km/h |
| 01:00 | heavy drizzle | 4 °C | 1.1 mm | 43 % | 7 km/h |
| 02:00 | light rain | 4 °C | 1.5 mm | 49 % | 9 km/h |
| 03:00 | light rain | 4 °C | 1.6 mm | 55 % | 14 km/h |
| 04:00 | light rain | 4 °C | 1.5 mm | 61 % | 18 km/h |
| 05:00 | rain | 5 °C | 2.6 mm | 68 % | 19 km/h |
| 06:00 | rain | 5 °C | 2.5 mm | 74 % | 18 km/h |
| 07:00 | rain | 5 °C | 4.1 mm | 80 % | 19 km/h |
| 08:00 | heavy drizzle | 6 °C | 1.0 mm | 84 % | 13 km/h |
| 09:00 | light rain | 6 °C | 1.3 mm | 88 % | 10 km/h |
| 10:00 | light drizzle | 6 °C | 0.2 mm | 90 % | 6 km/h |
| 11:00 | light drizzle | 6 °C | 0.1 mm | 90 % | 2 km/h |
| 12:00 | heavy drizzle | 12 °C | 1.1 mm | 89 % | 18 km/h |
| 13:00 | light rain | 13 °C | 1.5 mm | 88 % | 23 km/h |
Location of Rotselaar
Rotselaar lies at 14 m, 27 m below the average of the 63 places we cover in the province of Flemish Brabant (41 m). That makes it the 10th lowest of the 63. The main town, Leuven, lies 8 km to the south. The nearest places we cover are Tremelo (5 km to the north), Holsbeek (5 km to the south-east), Herent (6 km to the south-west) and Haacht (6 km to the north-west). With about 16,793 inhabitants according to GeoNames, Rotselaar is the 22nd largest of the 62 places we cover in the province of Flemish Brabant. Of the places of interest on this site, the nearest are Werchter, Rock Werchter (circuit or festival, 3 km to the north-west) and Atomium (sight, 27 km to the west).
Today is close to the November normal (10.3 °C).
Climate of Rotselaar: 1991–2020 normals
In Rotselaar, July is typically the warmest month (up to 24.1 °C on average), while February is the coldest at 1.6 °C. August sees the most rain, with around 91 mm.
By season (average highs, 1991–2020 normals): winter 7.0 °C and 226 mm of rain, spring 15.5 °C and 160 mm, summer 23.3 °C and 247 mm, autumn 15.3 °C and 209 mm. The wettest season is summer (29 % of the annual total), the driest spring (19 %).
| Max T (°C) | Min T (°C) | Rainfall (mm) | Rainy days | |
|---|---|---|---|---|
| January | 6.5 | 1.7 | 75 | 13 |
| February | 7.6 | 1.6 | 65 | 12 |
| March | 11.5 | 3.7 | 56 | 12 |
| April | 15.7 | 6.3 | 45 | 11 |
| May | 19.2 | 9.8 | 58 | 12 |
| June | 22.0 | 12.9 | 74 | 12 |
| July | 24.1 | 14.9 | 83 | 13 |
| August | 23.7 | 14.4 | 91 | 14 |
| September | 20.2 | 11.5 | 66 | 12 |
| October | 15.4 | 8.3 | 71 | 12 |
| November | 10.3 | 4.7 | 73 | 13 |
| December | 6.8 | 2.2 | 86 | 14 |
Compared with Leuven, the main town 8 km to the south, highs in the warmest month are 0.2 °C higher here, and the year brings the same amount of precipitation. In no month does the average low fall below 0 °C; in 4 months the average high exceeds 20 °C (June, July, August and September).
Nearby places with normals of their own (from another station or reanalysis grid cell) compare as follows: Holsbeek (5 km to the south-east): almost identical normals; Herent (6 km to the south-west): almost identical normals; Haacht (6 km to the north-west): equally warm summers and 11 mm drier a year. Among the 63 places we cover in the province of Flemish Brabant whose normals come from the ERA5 reanalysis, Rotselaar ranks 1st for summer warmth and 24th for annual precipitation. The warmest summers are in Rotselaar, Haacht and Boortmeerbeek and the coolest in Landen; the wettest year is in Hoegaarden and the driest in Geetbets.
What is the warmest month in Rotselaar?
The warmest month in Rotselaar is typically July, averaging 24.1 °C (1991–2020 normal). The coldest is February, at 1.6 °C.
How many rainy days does Rotselaar get per year?
Rotselaar sees about 151 rainy days a year, adding up to roughly 842 mm of rainfall (1991–2020 normals).
How big is the gap between summer and winter in Rotselaar?
Between July and February, the temperature gap in Rotselaar runs to about 22.5 °C, based on the 1991–2020 normals.