Weather in Onhaye
Namur, 257 m · continuously updated
Florennes (14 km) · 8 °C · KMI/IRM 14:00
- Wind
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- Humidity
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- Rain ahead
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- Sunset
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Temperature · last 4 and next 28 hours
Onhaye weather: the next 24 hours
Updated hourly.
Onhaye 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 Onhaye
Neighbouring towns, as the crow flies.
Official weather warnings
No active warning for Namur.
Updated 15 Nov 13:48.
Is there an active weather warning for Onhaye?
No active warning for Namur.
Latest RMI observation near Onhaye
Measured at Florennes, 14 km from Onhaye: situation as of 15 November 2026, 14:00. Florennes 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 | 8.1 °C |
| Wind | 25 km/h S |
| Gusts | 47 km/h |
| Rain, last hour | — |
| Humidity | — |
| Pressure | 1004 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
Today in Onhaye
- 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 (3.9 mm, up to 100 % chance). Have some shelter or a plan B ready. How it is calculated
- Best time to air the house: tomorrow, between 12:00 and 14:00. The outdoor dew point drops to 1.8 °C; once warmed to 20 °C, that air holds only 30 % humidity, against 50 % in a typical home: opening the windows dries the house. How it is calculated
- Garden: 58.5 mm of rain expected within 48 h, against a need of 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 Onhaye
Today (Sunday 15 Nov) in Onhaye: light rain, 1 to 10 °C, precipitation 5.1 mm (100 %), wind up to 22 km/h. Tomorrow: light rain, 4 to 8 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Today | light rain | 1 °C | 10 °C | 5.1 mm | 22 km/h |
| Tomorrow | light rain | 4 °C | 8 °C | 11.1 mm | 28 km/h |
| Tue 17 Nov | heavy rain | 4 °C | 13 °C | 52.0 mm | 30 km/h |
| Wed 18 Nov | drizzle | 7 °C | 11 °C | 3.6 mm | 25 km/h |
| Thu 19 Nov | showers | 7 °C | 9 °C | 9.5 mm | 25 km/h |
| Fri 20 Nov | drizzle | 4 °C | 9 °C | 6.4 mm | 22 km/h |
| Sat 21 Nov | overcast | 1 °C | 8 °C | 0.0 mm | 10 km/h |
Tomorrow's weather in Onhaye
Tomorrow, Monday 16 Nov, in Onhaye: light rain, from 4 to 8 °C, 11.1 mm of precipitation (probability 78 %), wind up to 28 km/h.
| Hour | Weather | Temp. | Precip. | Chance | Wind |
|---|---|---|---|---|---|
| 00:00 |  light drizzle | 8 °C | 0.3 mm | 78 % | 14 km/h |
| 03:00 | light drizzle | 8 °C | 0.4 mm | 66 % | 24 km/h |
| 06:00 |  light rain | 8 °C | 2.0 mm | 64 % | 23 km/h |
| 09:00 | light drizzle | 7 °C | 0.1 mm | 46 % | 19 km/h |
| 12:00 |  partly cloudy | 7 °C | 0.0 mm | 35 % | 20 km/h |
| 15:00 |  overcast | 6 °C | 0.0 mm | 20 % | 17 km/h |
| 18:00 | overcast | 4 °C | 0.0 mm | 20 % | 7 km/h |
| 21:00 | overcast | 4 °C | 0.0 mm | 34 % | 5 km/h |
Frequently asked questions
Will it rain tomorrow in Onhaye?
Yes: 11.1 mm expected, probability 78 %.
How warm will it be tomorrow in Onhaye?
Between 4 and 8 °C.
The weekend
Today, Sunday, in Onhaye: light rain, 1 to 10 °C. Next weekend: Saturday overcast, 1 to 8 °C, Sunday showers, 3 to 9 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Today | light rain | 1 °C | 10 °C | 5.1 mm | 22 km/h |
| Sat 21 Nov | overcast | 1 °C | 8 °C | 0.0 mm | 10 km/h |
| Sun 22 Nov | showers | 3 °C | 9 °C | 7.6 mm | 27 km/h |
Hour by hour
The next 48 hours in Onhaye, hour by hour: temperature from 4 to 13 °C, 58.5 mm of rain expected.
| Hour | Weather | Temp. | Precip. | Chance | Wind |
|---|---|---|---|---|---|
| 14:00 | overcast | 8 °C | 0.0 mm | 13 % | 20 km/h |
| 15:00 | overcast | 8 °C | 0.0 mm | 27 % | 20 km/h |
| 16:00 | light drizzle | 9 °C | 0.1 mm | 43 % | 22 km/h |
| 17:00 | drizzle | 9 °C | 0.5 mm | 63 % | 16 km/h |
| 18:00 | light rain | 9 °C | 1.5 mm | 85 % | 18 km/h |
| 19:00 | light rain | 10 °C | 1.8 mm | 100 % | 21 km/h |
| 20:00 | light drizzle | 9 °C | 0.3 mm | 100 % | 18 km/h |
| 21:00 | light drizzle | 9 °C | 0.3 mm | 100 % | 16 km/h |
| 22:00 | overcast | 9 °C | 0.0 mm | 94 % | 16 km/h |
| 23:00 | drizzle | 9 °C | 0.5 mm | 87 % | 12 km/h |
| 00:00 | light drizzle | 8 °C | 0.3 mm | 78 % | 14 km/h |
| 01:00 | light rain | 8 °C | 2.4 mm | 71 % | 13 km/h |
| 02:00 | light drizzle | 8 °C | 0.4 mm | 68 % | 22 km/h |
| 03:00 | light drizzle | 8 °C | 0.4 mm | 66 % | 24 km/h |
| 04:00 | light rain | 8 °C | 1.5 mm | 65 % | 23 km/h |
| 05:00 | light rain | 8 °C | 1.8 mm | 64 % | 28 km/h |
| 06:00 | light rain | 8 °C | 2.0 mm | 64 % | 23 km/h |
| 07:00 | drizzle | 7 °C | 0.6 mm | 61 % | 25 km/h |
| 08:00 | light drizzle | 7 °C | 0.2 mm | 54 % | 21 km/h |
| 09:00 | light drizzle | 7 °C | 0.1 mm | 46 % | 19 km/h |
| 10:00 | light drizzle | 7 °C | 0.1 mm | 39 % | 23 km/h |
| 11:00 |  sunny | 7 °C | 0.0 mm | 36 % | 21 km/h |
| 12:00 | partly cloudy | 7 °C | 0.0 mm | 35 % | 20 km/h |
| 13:00 | overcast | 7 °C | 0.0 mm | 33 % | 20 km/h |
| 14:00 | overcast | 7 °C | 0.0 mm | 27 % | 20 km/h |
| 15:00 | overcast | 6 °C | 0.0 mm | 20 % | 17 km/h |
| 16:00 | overcast | 6 °C | 0.0 mm | 16 % | 15 km/h |
| 17:00 | overcast | 5 °C | 0.0 mm | 17 % | 11 km/h |
| 18:00 | overcast | 4 °C | 0.0 mm | 20 % | 7 km/h |
| 19:00 | overcast | 4 °C | 0.0 mm | 24 % | 4 km/h |
| 20:00 | overcast | 4 °C | 0.0 mm | 29 % | 5 km/h |
| 21:00 | overcast | 4 °C | 0.0 mm | 34 % | 5 km/h |
| 22:00 | light drizzle | 4 °C | 0.4 mm | 39 % | 6 km/h |
| 23:00 | drizzle | 4 °C | 0.9 mm | 44 % | 7 km/h |
| 00:00 | light rain | 4 °C | 1.5 mm | 48 % | 8 km/h |
| 01:00 | rain | 5 °C | 2.8 mm | 53 % | 9 km/h |
| 02:00 | rain | 5 °C | 2.8 mm | 59 % | 9 km/h |
| 03:00 | light rain | 5 °C | 1.8 mm | 66 % | 10 km/h |
| 04:00 | light rain | 6 °C | 1.6 mm | 73 % | 10 km/h |
| 05:00 | light rain | 6 °C | 2.2 mm | 79 % | 10 km/h |
| 06:00 | rain | 7 °C | 2.9 mm | 85 % | 11 km/h |
| 07:00 | light rain | 8 °C | 1.8 mm | 90 % | 14 km/h |
| 08:00 | rain | 10 °C | 6.1 mm | 93 % | 19 km/h |
| 09:00 | heavy rain | 12 °C | 8.6 mm | 95 % | 24 km/h |
| 10:00 | rain | 12 °C | 2.8 mm | 96 % | 19 km/h |
| 11:00 | rain | 12 °C | 2.9 mm | 96 % | 19 km/h |
| 12:00 | light rain | 13 °C | 2.4 mm | 95 % | 24 km/h |
| 13:00 | light rain | 12 °C | 2.2 mm | 94 % | 19 km/h |
Location of Onhaye
Onhaye lies at 257 m, 63 m above the average of the 38 places we cover in the province of Namur (194 m). That makes it the 9th highest of the 38. The main town, Namur, lies 25 km to the north. The nearest places we cover are Hastière (3 km to the south-west), Dinant (5 km to the east), Anhée (8 km to the north) and Yvoir (10 km to the north). With about 3,241 inhabitants according to GeoNames, Onhaye is the 36th largest of the 38 places we cover in the province of Namur. Of the places of interest on this site, the nearest are Caves of Han (natural site, 28 km to the south-east) and Villers Abbey (sight, 43 km to the north-west).
Today is close to the November normal (8.4 °C).
Climate of Onhaye: 1991–2020 normals
In Onhaye, July is typically the warmest month (up to 21.4 °C on average), while February is the coldest at -0.3 °C. December sees the most rain, with around 84 mm.
By season (average highs, 1991–2020 normals): winter 5.2 °C and 219 mm of rain, spring 12.9 °C and 189 mm, summer 20.7 °C and 222 mm, autumn 13.2 °C and 189 mm. The wettest season is summer (27 % of the annual total), the driest spring (23 %).
| Max T (°C) | Min T (°C) | Rainfall (mm) | Rainy days | |
|---|---|---|---|---|
| January | 4.6 | -0.2 | 70 | 13 |
| February | 5.7 | -0.3 | 65 | 12 |
| March | 9.3 | 1.5 | 64 | 13 |
| April | 13.0 | 4.0 | 57 | 12 |
| May | 16.5 | 7.7 | 68 | 13 |
| June | 19.4 | 10.7 | 71 | 12 |
| July | 21.4 | 12.9 | 75 | 13 |
| August | 21.4 | 12.8 | 77 | 12 |
| September | 17.8 | 10.1 | 59 | 11 |
| October | 13.5 | 7.2 | 63 | 12 |
| November | 8.4 | 3.5 | 67 | 13 |
| December | 5.2 | 0.7 | 84 | 14 |
Compared with Namur, the main town 25 km to the north, highs in the warmest month are 1.6 °C lower here, and the year brings 38 mm less precipitation. In 2 months the average low falls below 0 °C (January and February); in 2 months the average high exceeds 20 °C (July and August).
Nearby places with normals of their own (from another station or reanalysis grid cell) compare as follows: Dinant (5 km to the east): summers 0.9 °C warmer and 13 mm wetter a year; Houyet (13 km to the south-east): summers 0.9 °C warmer and 16 mm wetter a year; Doische (14 km to the south-west): summers 0.7 °C warmer and 88 mm wetter a year. Among the 38 places we cover in the province of Namur whose normals come from the ERA5 reanalysis, Onhaye ranks 30th for summer warmth and 37th for annual precipitation. The warmest summers are in Jemeppe-sur-Sambre and the coolest in Viroinval; the wettest year is in Bièvre and the driest in Hastière and Onhaye.
What is the warmest month in Onhaye?
The warmest month in Onhaye is typically July, averaging 21.4 °C (1991–2020 normal). The coldest is February, at -0.3 °C.
How many rainy days does Onhaye get per year?
Onhaye sees about 150 rainy days a year, adding up to roughly 820 mm of rainfall (1991–2020 normals).
How big is the gap between summer and winter in Onhaye?
Between July and February, the temperature gap in Onhaye runs to about 21.7 °C, based on the 1991–2020 normals.