Today
4 Nov
30° 24°
100%7.2 mm
80%
9 weather models · one stack
Colombo weather
Western Province, Sri Lanka
6.92°, 79.91° · 6 m
Local time 06:44
Confidence 80%
Colombo weather today: 9 models agree with high confidence on a high of 30°C and a low of 24°C. Rain expected: 100% of models agree, about 7.2 mm. Tomorrow: 32°C. Rain expected: 100% of models agree, about 11 mm.
The stack
Each row is one weather model, each cell one hour. Same colour across rows = the models agree. Tap a model to hide it; hover for exact values.
16-day consensus
Each coloured line is one model's low→high; the dots are their highs. A tight cluster means a confident forecast.
Thu
5 Nov
32° 24°
100%11 mm
74%
Fri
6 Nov
30° 24°
89%13 mm
71%
Sat
7 Nov
30° 24°
100%14 mm
80%
Sun
8 Nov
30° 25°
100%20 mm
84%
Mon
9 Nov
30° 23°
100%6.3 mm
87%
Tue
10 Nov
30° 24°
86%7.8 mm
70%
Wed
11 Nov
30° 24°
80%16 mm
74%
Thu
12 Nov
30° 23°
80%9.0 mm
71%
Fri
13 Nov
31° 23°
100%7.2 mm
89%
Sat
14 Nov
30° 23°
75%11 mm
52%
Sun
15 Nov
29° 24°
100%21 mm
63%
Mon
16 Nov
29° 24°
100%18 mm
82%
Tue
17 Nov
30° 25°
100%7.8 mm
95%
Wed
18 Nov
30° 23°
100%10 mm
90%
Thu
19 Nov
31° 23°
100%2.4 mm
70%
Model spaghetti
Every model as a line, the bold line is the median, the shaded band the full model range. Rain shows accumulated totals from now.
Model maps around Colombo
ECMWF and GFS rain forecasts over Colombo on synced maps. Drag the divider or press play.
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What each model says for Colombo
Daily high/low and rain total per model. Blue = at least 1 mm.
| Model | Today | Thu 5 | Fri 6 | Sat 7 | Sun 8 | Mon 9 | Tue 10 |
|---|---|---|---|---|---|---|---|
| Consensus | 30°/24° · 7.2 mm | 32°/24° · 11 mm | 30°/24° · 13 mm | 30°/24° · 14 mm | 30°/25° · 20 mm | 30°/23° · 6.3 mm | 30°/24° · 7.8 mm |
| ECMWF | 30°/24° · 7.2 mm | 31°/24° · 8.5 mm | 29°/23° · 9.2 mm | 29°/24° · 2.7 mm | 29°/23° · 16 mm | 29°/23° · 1.8 mm | 29°/23° · 0.6 mm |
| AIFS | 30°/25° · 12 mm | 30°/25° · 11 mm | 30°/25° · 29 mm | 30°/25° · 23 mm | 30°/25° · 26 mm | 30°/25° · 25 mm | 30°/25° · 16 mm |
| GFS | 30°/23° · 4.1 mm | 33°/24° · 3.3 mm | 31°/24° · 19 mm | 30°/24° · 21 mm | 31°/24° · 27 mm | 30°/23° · 7.8 mm | 31°/23° · 6.3 mm |
| ICON | 33°/25° · 6.9 mm | 34°/25° · 16 mm | 32°/25° · 7.9 mm | 32°/26° · 2.7 mm | 32°/26° · 7.5 mm | 32°/25° · 3.9 mm | 32°/26° · 8.7 mm |
| GEM | 31°/24° · 2.8 mm | 32°/24° · 15 mm | 29°/24° · 0.3 mm | 30°/24° · 4.5 mm | 29°/24° · 21 mm | 30°/23° · 5.4 mm | 30°/24° · 2.1 mm |
| JMA | 29°/23° · 8.4 mm | 29°/24° · 10 mm | 30°/24° · 32 mm | 30°/23° · 52 mm | 30°/23° · 19 mm | 29°/23° · 11 mm | 29°/24° · 9.6 mm |
| ARPEGE | 29°/26° · 2.1 mm | 29°/26° · 19 mm | 28°/26° · 2.7 mm | 28°/26° · 3.0 mm | - | - | - |
| UKMO | 32°/24° · 39 mm | 33°/24° · 35 mm | 31°/24° · 28 mm | 32°/24° · 20 mm | 31°/25° · 30 mm | 31°/25° · 6.3 mm | 29°/25° · 7.8 mm |
| CMA | 32°/25° · 9.9 mm | 32°/26° · 11 mm | 32°/25° · 13 mm | 32°/25° · 14 mm | 31°/26° · 1.2 mm | - | - |
Colombo weather: questions
Will it rain in Colombo tomorrow?
Rain expected: 100% of models agree, about 11 mm. Across 9 weather models the median total is 11 mm, ranging from 3.3 mm to 35 mm.
When will it rain next in Colombo?
The next day most models agree on rain is Wednesday 4 November: 100% of models, about 7.2 mm.
What do ECMWF and GFS say for Colombo today?
ECMWF (the European model) forecasts a high of 30°C with 7.2 mm of rain; GFS (the American model) says 30°C with 4.1 mm. The median of all 9 models is 30°C.
Which weather model is most accurate for Colombo?
On average ECMWF scores best in global verification beyond 2–3 days, with the UK Met Office close behind. For the first 48 hours, high-resolution regional models (ICON-D2, AROME, HRRR, UKV) often win locally. The most reliable single number is usually the multi-model consensus shown on this page.
How reliable is the Colombo forecast this week?
The least certain day is Tuesday (confidence 70/100): AIFS forecasts 16 mm of rain while ECMWF forecasts 0.6 mm.
Nearby forecasts
Model runs fetched at 01:14 UTC. Sources: ECMWF IFS · ECMWF AIFS · NOAA GFS · DWD ICON · Canadian GEM · JMA GSM · Météo-France ARPEGE / AROME · UK Met Office · CMA GRAPES · Methodology