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Weather in Deinze
East Flanders, 4 m · continuously updated
Semmerzake (13 km) · 9 °C · KMI/IRM 14:00
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Temperature · last 4 and next 28 hours
Deinze weather: the next 24 hours
Updated hourly.
Deinze 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 Deinze
Neighbouring towns, as the crow flies.
Official weather warnings
No active warning for East Flanders.
Updated 15 Nov 13:48.
Is there an active weather warning for Deinze?
No active warning for East Flanders.
Latest RMI observation near Deinze
Measured at Semmerzake, 13 km from Deinze: situation as of 15 November 2026, 14:00. Semmerzake 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 | 8.8 °C |
| Wind | 18 km/h S |
| Gusts | 36 km/h |
| Rain, last hour | — |
| Humidity | — |
| Pressure | 1002 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 Deinze
The weather station nearest to Deinze, Eeklo located 8 m above sea level, is 20 km away; its records cover 1954–2004. The warmest month ever measured is July 2006 (22.6 °C), the coldest February 1956 (−5.4 °C). See the full series of Eeklo
Today in Deinze
- 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 (0.2 mm, up to 84 % 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 3.7 °C; once warmed to 20 °C, that air holds only 34 % humidity, against 50 % in a typical home: opening the windows dries the house. How it is calculated
- Garden: 29 mm of rain expected within 48 h, against a need of 0.8 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 Deinze
Today (Sunday 15 Nov) in Deinze: light rain, 0 to 10 °C, precipitation 3.3 mm (84 %), wind up to 24 km/h. Tomorrow: rain, 3 to 9 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Today | light rain | 0 °C | 10 °C | 3.3 mm | 24 km/h |
| Tomorrow | rain | 3 °C | 9 °C | 7.7 mm | 26 km/h |
| Tue 17 Nov | rain | 4 °C | 13 °C | 18.9 mm | 40 km/h |
| Wed 18 Nov | heavy drizzle | 8 °C | 12 °C | 5.2 mm | 24 km/h |
| Thu 19 Nov | showers | 8 °C | 11 °C | 8.9 mm | 20 km/h |
| Fri 20 Nov | showers | 2 °C | 8 °C | 13.5 mm | 17 km/h |
| Sat 21 Nov | overcast | 1 °C | 10 °C | 0.0 mm | 13 km/h |
Tomorrow's weather in Deinze
Tomorrow, Monday 16 Nov, in Deinze: rain, from 3 to 9 °C, 7.7 mm of precipitation (probability 51 %), wind up to 26 km/h.
| Hour | Weather | Temp. | Precip. | Chance | Wind |
|---|---|---|---|---|---|
| 00:00 |  drizzle | 9 °C | 0.5 mm | 51 % | 17 km/h |
| 03:00 |  rain | 9 °C | 4.5 mm | 48 % | 20 km/h |
| 06:00 | light drizzle | 8 °C | 0.1 mm | 48 % | 19 km/h |
| 09:00 |  overcast | 7 °C | 0.0 mm | 34 % | 20 km/h |
| 12:00 | overcast | 7 °C | 0.0 mm | 13 % | 24 km/h |
| 15:00 | overcast | 7 °C | 0.0 mm | 8 % | 18 km/h |
| 18:00 | overcast | 3 °C | 0.0 mm | 14 % | 13 km/h |
| 21:00 | overcast | 3 °C | 0.0 mm | 29 % | 9 km/h |
Frequently asked questions
Will it rain tomorrow in Deinze?
Yes: 7.7 mm expected, probability 51 %.
How warm will it be tomorrow in Deinze?
Between 3 and 9 °C.
The weekend
Today, Sunday, in Deinze: light rain, 0 to 10 °C. Next weekend: Saturday overcast, 1 to 10 °C, Sunday drizzle, 5 to 9 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Today | light rain | 0 °C | 10 °C | 3.3 mm | 24 km/h |
| Sat 21 Nov | overcast | 1 °C | 10 °C | 0.0 mm | 13 km/h |
| Sun 22 Nov | drizzle | 5 °C | 9 °C | 6.6 mm | 20 km/h |
Hour by hour
The next 48 hours in Deinze, hour by hour: temperature from 3 to 13 °C, 29.0 mm of rain expected.
| Hour | Weather | Temp. | Precip. | Chance | Wind |
|---|---|---|---|---|---|
| 14:00 | overcast | 8 °C | 0.0 mm | 24 % | 20 km/h |
| 15:00 | light drizzle | 8 °C | 0.4 mm | 52 % | 24 km/h |
| 16:00 | light rain | 9 °C | 1.5 mm | 73 % | 24 km/h |
| 17:00 | drizzle | 10 °C | 0.9 mm | 82 % | 22 km/h |
| 18:00 | light drizzle | 10 °C | 0.2 mm | 84 % | 20 km/h |
| 19:00 | overcast | 9 °C | 0.0 mm | 82 % | 16 km/h |
| 20:00 | overcast | 9 °C | 0.0 mm | 75 % | 17 km/h |
| 21:00 | overcast | 9 °C | 0.0 mm | 64 % | 15 km/h |
| 22:00 | overcast | 9 °C | 0.0 mm | 55 % | 18 km/h |
| 23:00 | light drizzle | 9 °C | 0.3 mm | 52 % | 17 km/h |
| 00:00 | drizzle | 9 °C | 0.5 mm | 51 % | 17 km/h |
| 01:00 | drizzle | 9 °C | 0.5 mm | 51 % | 17 km/h |
| 02:00 | light drizzle | 8 °C | 0.1 mm | 50 % | 16 km/h |
| 03:00 | rain | 9 °C | 4.5 mm | 48 % | 20 km/h |
| 04:00 | light rain | 9 °C | 1.5 mm | 47 % | 24 km/h |
| 05:00 | light drizzle | 8 °C | 0.4 mm | 47 % | 19 km/h |
| 06:00 | light drizzle | 8 °C | 0.1 mm | 48 % | 19 km/h |
| 07:00 | light drizzle | 8 °C | 0.1 mm | 47 % | 26 km/h |
| 08:00 | overcast | 7 °C | 0.0 mm | 42 % | 22 km/h |
| 09:00 | overcast | 7 °C | 0.0 mm | 34 % | 20 km/h |
| 10:00 | overcast | 7 °C | 0.0 mm | 27 % | 24 km/h |
| 11:00 |  sunny | 7 °C | 0.0 mm | 20 % | 23 km/h |
| 12:00 | overcast | 7 °C | 0.0 mm | 13 % | 24 km/h |
| 13:00 | sunny | 7 °C | 0.0 mm | 8 % | 23 km/h |
| 14:00 | overcast | 7 °C | 0.0 mm | 7 % | 22 km/h |
| 15:00 | overcast | 7 °C | 0.0 mm | 8 % | 18 km/h |
| 16:00 | sunny | 6 °C | 0.0 mm | 10 % | 16 km/h |
| 17:00 | overcast | 4 °C | 0.0 mm | 12 % | 15 km/h |
| 18:00 | overcast | 3 °C | 0.0 mm | 14 % | 13 km/h |
| 19:00 | overcast | 3 °C | 0.0 mm | 18 % | 9 km/h |
| 20:00 | overcast | 3 °C | 0.0 mm | 23 % | 8 km/h |
| 21:00 | overcast | 3 °C | 0.0 mm | 29 % | 9 km/h |
| 22:00 | overcast | 4 °C | 0.0 mm | 35 % | 7 km/h |
| 23:00 | overcast | 4 °C | 0.0 mm | 39 % | 8 km/h |
| 00:00 | drizzle | 4 °C | 0.8 mm | 42 % | 10 km/h |
| 01:00 | light rain | 4 °C | 1.5 mm | 47 % | 12 km/h |
| 02:00 | light rain | 4 °C | 2.1 mm | 54 % | 16 km/h |
| 03:00 | heavy drizzle | 4 °C | 1.1 mm | 62 % | 22 km/h |
| 04:00 | rain | 5 °C | 3.5 mm | 69 % | 20 km/h |
| 05:00 | light rain | 5 °C | 2.1 mm | 75 % | 23 km/h |
| 06:00 | rain | 5 °C | 3.6 mm | 80 % | 21 km/h |
| 07:00 | light rain | 5 °C | 1.4 mm | 84 % | 19 km/h |
| 08:00 | drizzle | 5 °C | 0.8 mm | 87 % | 13 km/h |
| 09:00 | overcast | 6 °C | 0.0 mm | 89 % | 9 km/h |
| 10:00 | overcast | 6 °C | 0.0 mm | 90 % | 6 km/h |
| 11:00 | light drizzle | 9 °C | 0.2 mm | 89 % | 16 km/h |
| 12:00 | light drizzle | 12 °C | 0.3 mm | 87 % | 27 km/h |
| 13:00 | drizzle | 13 °C | 0.6 mm | 84 % | 24 km/h |
Location of Deinze
Deinze lies at 4 m, 16 m below the average of the 55 places we cover in the province of East Flanders (20 m). That makes it the 11th lowest of the 55. The main town, Ghent, lies 15 km to the north-east. The nearest places we cover are Sint-Martens-Latem (8 km to the east), Zulte (8 km to the south), Nazareth-De Pinte (9 km to the south-east) and Dentergem (10 km to the south-west). With about 43,571 inhabitants according to GeoNames, Deinze is the 6th largest of the 52 places we cover in the province of East Flanders. Of the places of interest on this site, the nearest are The Zwin (seaside resort, 42 km to the north) and Atomium (sight, 59 km to the east).
Today is close to the November normal (10.2 °C).
Climate of Deinze: 1991–2020 normals
In Deinze, July is typically the warmest month (up to 22.6 °C on average), while January is the coldest at 1.4 °C. August sees the most rain, with around 83 mm.
By season (average highs, 1991–2020 normals): winter 7.0 °C and 197 mm of rain, spring 14.4 °C and 173 mm, summer 21.9 °C and 229 mm, autumn 14.8 °C and 193 mm. The wettest season is summer (29 % of the annual total), the driest spring (22 %).
| Max T (°C) | Min T (°C) | Rainfall (mm) | Rainy days | |
|---|---|---|---|---|
| January | 6.5 | 1.4 | 66 | 13 |
| February | 7.5 | 1.4 | 56 | 11 |
| March | 10.8 | 3.0 | 56 | 12 |
| April | 14.5 | 5.3 | 53 | 12 |
| May | 17.9 | 8.8 | 64 | 12 |
| June | 20.6 | 11.7 | 68 | 11 |
| July | 22.6 | 14.0 | 78 | 13 |
| August | 22.5 | 13.9 | 83 | 12 |
| September | 19.3 | 11.5 | 63 | 11 |
| October | 15.0 | 8.4 | 64 | 12 |
| November | 10.2 | 4.9 | 67 | 13 |
| December | 6.9 | 2.1 | 74 | 13 |
Its normals are almost identical to those of Ghent, the main town 15 km to the north-east. In no month does the average low fall below 0 °C; in 3 months the average high exceeds 20 °C (June, July and August).
Nearby places with normals of their own (from another station or reanalysis grid cell) compare as follows: Sint-Martens-Latem (8 km to the east): summers 0.2 °C warmer and 17 mm wetter a year; Zulte (8 km to the south): almost identical normals; Dentergem (10 km to the south-west): summers 0.3 °C cooler and 14 mm drier a year. Among the 55 places we cover in the province of East Flanders whose normals come from the ERA5 reanalysis, Deinze ranks 42nd for summer warmth and 42nd for annual precipitation. The warmest summers are in Ninove and the coolest in Sint-Laureins; the wettest year is in Ninove and the driest in Maldegem, Eeklo and Sint-Laureins.
What is the warmest month in Deinze?
The warmest month in Deinze is typically July, averaging 22.6 °C (1991–2020 normal). The coldest is January, at 1.4 °C.
How many rainy days does Deinze get per year?
Deinze sees about 144 rainy days a year, adding up to roughly 792 mm of rainfall (1991–2020 normals).
How big is the gap between summer and winter in Deinze?
Between July and January, the temperature gap in Deinze runs to about 21.2 °C, based on the 1991–2020 normals.