Forecasts for the next 36 hours
(chart)
(These forecasts are usually updated daily)
Weather – Update +36 h |29. Dezember 2025 | 7 Uhr
Analyse auf Basis des BMCB-Multimodells (ICON-D2, AROME-HD, ALADIN)
🌧 Niederschläge – nächste 36 Stunden
Die Niederschlagsmengen bleiben landesweit sehr gering:
- Nördlich der Schelde: 0 bis 0,5 l/m²
- Zwischen Schelde und Sambre-Maas: trocken
- Südlich von Sambre und Maas: 0 bis 0,5 l/m²
🌫 Heute
Der Tag beginnt mit zähem Nebel und Dunst, vor allem in der Kempenregion, im Westen der Provinz Lüttich, im Norden der Provinz Namur sowie im Osten beider Brabanter Provinzen.
Andernorts dominieren tiefe Wolkenfelder, mit ersten Auflockerungen in Flandern, während sich im Süden der Provinz Lüttich, in Belgisch-Luxemburg und im Süden Namurs bereits freundlicheres, sonniges Wetter durchsetzt.
Wind: wechselnd bis Ost bis Nordost, meist schwach, Böen von 5 bis 25 km/h.
☀️ Am Nachmittag
Im Süden von Belgisch-Luxemburg wird es weitgehend sonnig, während im übrigen Land ein bewölkter Himmel mit einzelnen Auflockerungen vorherrscht.
Wind: Nord bis Nordost, 5 bis 25 km/h, in den östlichen Höhenlagen bis 35 km/h.
Höchsttemperaturen:
- etwa 7°C an der Küste,
- 2 bis 3°C im Binnenland,
- 0 bis 1°C in den Ardennen.
🌥 Am Abend
Der Himmel bleibt bewölkt bis stark bewölkt, mit einzelnen Auflockerungen, vor allem in Wallonien.
Wind: Nord bis Nordost, 5 bis 25 km/h, an der Küste bis 30 km/h.
🌙 In der Nacht
Ruhiges Wetter unter einem meist bewölkten Himmel, zwischendurch mit kurzen Auflockerungen.
Wind: Nord bis Nordost, 15 bis 35 km/h.
Tiefsttemperaturen:
- um 3°C an der Küste,
- 0 bis 2°C im Landesinneren,
- meist –3 bis –1°C südlich der Sambre-Maas-Linie.
🔮 Ausblick auf morgen
🌤 Vormittag
Es wird recht sonnig, allerdings halten sich noch Wolken über den Höhenlagen der Provinz Lüttich und an der Küste.
Wind: Nord bis Nordost, 15 bis 35 km/h.
☀️ Nachmittag
Überwiegend sonniges Wetter, an der Küste zeitweise stärker bewölkt, dort besteht ein geringes Risiko für leichte Schauer.
Wind: Nord bis Nordost, 10 bis 30 km/h.
Höchsttemperaturen:
- etwa 6°C an der Küste,
- 3 bis 6°C im Binnenland,
- –1 bis +3°C in den Ardennen.
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National Thermal Indicator
(Chart)
MULTIMODEL BMCB
(These forecasts are generally updated daily)
Update: 29 December 2025 | 11 am
Winter now appears firmly intent on asserting itself. Over the next fifteen days, the national thermal index is expected to remain consistently in negative territory, fluctuating between 0 and –5, a clear indication that cold conditions are becoming well established.
During the daytime, temperatures will struggle to rise. In the milder phases, maximum values will generally range between –1 and +6°C, while the coldest spells will keep the mercury between –4 and +3°C, reinforcing a sometimes biting wintry feel.
The nights will be even more severe. Minimum temperatures will most often fall between –7 and –1°C during the coldest nights, and around –3 to –1°C when conditions are slightly less harsh. However, under clear skies and calm conditions, radiative cooling may prove particularly efficient: in valleys south of the Sambre–Meuse axis, temperatures could drop significantly lower, locally reaching –9 to –13°C.
A setup conducive to widespread frost, confirming the gradual establishment of a truly wintry landscape across large parts of the country.
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General Weather Evolution for the Next Days
Europe: Analysis & Forecast maps (6=>? days)
Update – 29 December 2025 | 12:00
Over the coming days, a robust high-pressure ridge, with values ranging between 1036 and 1041 hPa, will extend from Greenland to the west of the British Isles. This dominant anticyclonic feature will maintain a persistent north to north-westerly airflow across our regions, drawing in cooler air for the time of year.
At the same time, a currently modest low-pressure system of around 993 hPa is expected to deepen rapidly, reaching approximately 976 hPa on New Year’s Day over southern Norway. This depression will steer increasingly moist and unstable air towards the southern North Sea and onwards into our areas, setting the stage for scattered showers.
In low-lying areas, precipitation will mainly fall as rain or sleet, while the higher elevations of the Ardennes are more likely to see wet snow or snow, depending on intensity and altitude.
As the low gradually fills while shifting eastwards across the eastern North Sea towards the Baltic Sea, conditions will remain cool and at times unsettled, with locally wintry showers of snow or sleet still possible.
Towards the end of the week, a wavering frontal system is expected to advance northwards from central and northern France. This feature could bring more persistent snowfall, particularly across the south and east of the country, lending a distinctly more wintry feel to the closing days of the year.
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Forecast for the coming days
(Chart)
Multimodel BMCB ( OPERATIONAL + ENSEMBLES ICON-GFS-ECMWF-AIFS-GCGFS )
Forecast of the range of temperatures, precipitations + general type of weather in Belgium
(These forecasts are usually updated daily)
Weather Update – 29 December 2025 | 15:00
Summary of the expected weather evolution
based on the BMCB multimodel approach (operational models and ensembles ICON – AIFS – ECMWF)
The upcoming period confirms the establishment of persistently cold winter conditions, punctuated by occasionally unsettled phases. Winter precipitation will mainly affect higher elevations and eastern regions, while contrasts between lowlands and uplands remain pronounced. At times, brisk winds will further enhance the wintry feel.
📅 Wednesday, 31 December
The year ends under cool and changeable conditions.
Sunny intervals will alternate with cloudier spells, especially across eastern areas. Showers are expected over Limburg and the Liège region, falling as sleet or snow above 300 m.
Temperatures: minima –5 to +1°C, maxima 0 to 6°C.
Precipitation: 0 to 0.5 mm.
📅 Thursday, 1 January
The New Year begins rather cold and often overcast.
Showers will gradually develop, with light snow or sleet from 200–300 m in the Ardennes.
During the night, precipitation becomes more widespread: rain in the lowlands, sleet above 200–300 m, and snow above 400–500 m.
Winds will strengthen noticeably, with gusts of 45 to 65 km/h, locally higher along the coast.
Temperatures: –4 to +2°C, maxima 0 to 6°C.
Precipitation: 0 to 3 mm.
📅 Friday, 2 January
Conditions remain fairly cold, though largely dry.
A very changeable sky with sunny spells and passing cloud bands.
Moderate to fresh west to south-westerly winds.
Temperatures: –2 to +4°C / 0 to 6°C.
Precipitation: 0 to 5 mm.
📅 Saturday, 3 January
Winter conditions become more pronounced.
Under mostly cloudy skies, the risk of sleet increases, with snow above 300 m.
Temperatures: –5 to +1°C / –2 to +4°C.
Precipitation: 1 to 5 mm.
📅 Sunday, 4 January
A notably wintry day.
Across the south-eastern half of the country, locally significant snowfall is possible.
Temperatures: –6 to 0°C / –4 to +2°C.
Precipitation: 0 to 35 mm.
🔭 Likely outlook
📅 Monday 5 to Monday 12 January
The first ten days of January look predominantly cold, with intermittent weak to moderate precipitation.
- Frequent overnight frosts, locally severe in Ardennes valleys
- Snow or sleet recurring in the Ardennes, occasionally reaching lowland areas
- Alternation between drier spells and weakly unsettled conditions
Typical values:
- Minima: –7 to +2°C (locally down to –10°C)
- Maxima: –4 to +6°C
A firmly established winter pattern is therefore expected to accompany the start of the new year.
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Forecast anomalies at 500 hPa
(mid-troposphere = 5,000–6,000 m altitude)
( charts )
Weather Update – 29 December 2025 | 8 a.m.
As the new year approaches, the leading forecasting models outline a January marked by sharp contrasts. While the early-month signal remains relatively clear, uncertainty increases noticeably at medium range.
For the first decade of January, the ECMWF and GEFS ensemble models are in strong agreement. A broad low-pressure zone is expected to stretch from northern Scandinavia down to the Iberian Peninsula, encompassing the Benelux, Germany and France along the way. Under this setup, our regions would be exposed to an unstable and fairly cold north-westerly to northerly flow, bringing changeable conditions and temperatures below seasonal averages.
During the second and third decades of January, forecast confidence decreases as the scenarios begin to diverge, reflecting a marked drop in predictability.
According to ECMWF, the low-pressure system would extend from the nearby Atlantic towards the North Sea, establishing a south-westerly flow—milder in nature but also more unsettled. By contrast, GEFS shifts the core of the low-pressure activity towards Central Europe and Italy, allowing a cold north to north-easterly flow to persist over our regions.
Despite these differences, both models converge again towards the end of the month. They point to the return of high pressure over Scandinavia, favouring a continental north-easterly flow, colder and potentially drier across our part of Europe.
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SOURCE: METEOCONSULT
BENELUX:
Weather Outlook for 3-4 weeks
Weather outlook – 9 to 25 January 2026
9–18 January: winter uncertainty, possible milder and wetter influence from the west
Medium-range forecasts still point towards predominantly wintry conditions, driven by a dominant northerly flow bringing cold and unsettled weather.
Under such a pattern, snowfall at low elevations cannot be ruled out, particularly across northern and eastern regions.
At this lead time, however, uncertainty remains high, both regarding the severity of the cold and the strength of disturbances arriving from northern Europe.
At the same time, alternative scenarios suggest a gradual shift towards milder and wetter conditions, with recurring weather fronts and temperatures returning closer to seasonal averages, especially from the west.
19–25 January: distinctly milder and unsettled
For the period 19 to 25 January, model guidance increasingly supports the establishment of a disturbed west to south-westerly flow.
This setup would bring frequent spells of rain, interspersed with temporary calmer intervals.
Temperatures are expected to rise significantly, settling well above seasonal norms, signalling a sustained break from winter conditions.
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Weather Outlook for 3 months
Update 13-12-25 – 3:00 PM
January 2026: a wintry spell before milder conditions return
January 2026 is expected to open with a distinctly wintry phase, followed by a clear and lasting return to milder conditions during the second half of the month.
The nationwide temperature anomaly is estimated at +0.7°C, pointing to an overall mild month despite a cold start.
Early January could bring low temperatures and a risk of snowfall reaching lowland areas.
From mid-January onwards, Atlantic influences are likely to dominate, bringing temperatures well above seasonal averages.
In terms of precipitation, a slight surplus (+5%) is anticipated. Weather systems would be fairly frequent at the beginning of the month under a northerly flow, before shifting to a westerly to south-westerly Atlantic regime from mid-month.
As a result, January could become the wettest month of the 2025-2026 winter.
February 2026: slightly drier and still mild
February is expected to remain generally mild, with a temperature surplus close to +1°C.
Weather conditions are likely to be contrasting, with cold mornings followed by milder and often sunny afternoons, as high-pressure systems settle more frequently over the region.
Precipitation totals would be slightly below average (-10%), with less active weather systems due to the influence of persistent high pressure over continental Europe.
March 2026: finally a seasonal month?
March could finally deliver near-average seasonal conditions.
Temperatures are expected to fluctuate around climatological norms, with alternating cooler periods and milder, more unsettled phases, typical of early spring.
Precipitation should be close to average overall, though locally below normal, under the possible influence of high-pressure systems over northern Europe.
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Update to BMCB Multimodel – since 1 October 2025
from ICON (replace location left above )
from ECMWF (replace location left above)