Home › Sri Lanka › Western Province › Colombo

Colombo weather

Western Province · 648,034 inhabitants · Thursday, October 29 · updated 22:33

Rain around 23:33 Air: Fair High storm risk · Today, Tomorrow, Sat

28°

Mainly clear

Feels like 39°C

Wind

16 km/h

Gusts

17 km/h

Humidity

78 %

Pressure

1013 hPa

Clouds

32 %

Storm

Rise 05:57 Set 17:51 Day 11 h 53 min UV 10 · Very high

Morning, afternoon, evening

Trend

Evening

Mainly clear

28°

Feels like 40°

Wind ↑ SSW 16 km/h

Humidity 82 %

💧 0.1 mm

23:00

28°

0.1mm

S 13

02:00

28°

0.3mm

SSW 13

Colombo forecast in charts · next 7 days

The week ahead: highs and lows

▲ This week runs +1.6° warmer than usual

Highs Lows Usual for the season (1991–2020 average)

Hourly detail

Temperature (°C) Rain (mm) Wind (km/h)

Colombo climate: what a normal year looks like

The thermometer moves little from one season to the next: typical afternoon highs range from 29 °C in August to 33 °C in March, and the coolest nights (January) average 23 °C.

A normal year brings roughly 2,690 mm of rain — more than 96% of the towns of 20,000+ people we compared it with.

Swimmers find the warmest sea in April (30 °C) and the coolest in August (27 °C).

Forecast highs for the coming week average 29 °C, 1 °C cooler than a normal October (30 °C).

30-year averages (1991–2020)
Month	Typical high	Typical low	Rainfall	Sea
Jan	31 °C	23 °C	75 mm	28 °C
Feb	33 °C	24 °C	76 mm	28 °C
Mar	33 °C	25 °C	103 mm	29 °C
Apr	32 °C	25 °C	207 mm	30 °C
May	31 °C	26 °C	281 mm	30 °C
Jun	30 °C	25 °C	291 mm	28 °C
Jul	29 °C	25 °C	257 mm	28 °C
Aug	29 °C	25 °C	234 mm	27 °C
Sep	29 °C	25 °C	262 mm	28 °C
Oct	30 °C	24 °C	370 mm	28 °C
Nov	30 °C	24 °C	347 mm	29 °C
Dec	30 °C	23 °C	188 mm	28 °C
Whole year	31 °C	24 °C	2,690 mm	28 °C

Source: our own processing of the ERA5 reanalysis (Copernicus/ECMWF) for 6.96° N, 79.86° E, 1991–2020. ERA5 averages over a 0.25° grid (about 25 km): hills, a coastline or the heat of the city itself can shift local values by a degree or two.

Air you breathe in Colombo: pollution and pollen

2/6

Fair

European Air Quality Index (EAQI), from Copernicus CAMS

PM2.514µg/m³

PM1018µg/m³

Copernicus CAMS model, updated several times a day.

Rain radar around Colombo

Rain observed over the last two hours by official weather radars around Colombo, followed by the radar forecast for the next hour where the weather service provides one.

Rain radar Last two hours, then forecast where available · drag the timeline

No open weather radar covers Colombo yet: the map shows our hour-by-hour rain forecast (ICON, GFS).

Moon over Colombo

Waning gibbous

87 % illuminated · 18.3 days

Rise 22:44 Set 10:51

Fri 30/10 79%

Sat 31/10 69%

Sun 1/11 59%

Mon 2/11 49% Last quarter

Tue 3/11 38%

Wed 4/11 28%

Thu 5/11 19%

Fri 6/11 12%

Sat 7/11 6%

Sun 8/11 2%

Mon 9/11 0%

Tue 10/11 1% New moon

Moonrise and moonset in local time (Asia/Colombo); phase and lit fraction from a synodic calculation.

Sea and tides near Colombo

Tide station used: Colombo

🌊 Sea surface

29.4 °C

satellite, 29/10

Sea state

Smooth

waves 0.8 m

Period

8 s

Swell

0.3 m

TodayThu 29/10

Low tide 09:36 0.2 m

High tide 15:25 0.6 m

Low tide 21:18 0.1 m

TomorrowFri 30/10

High tide 03:54 0.8 m

Low tide 10:07 0.3 m

High tide 15:56 0.6 m

Low tide 21:49 0.2 m

SatSat 31/10

High tide 04:26 0.8 m

Low tide 10:38 0.3 m

High tide 16:29 0.6 m

Low tide 22:21 0.3 m

SunSun 01/11

High tide 04:59 0.7 m

Low tide 11:14 0.4 m

High tide 17:13 0.5 m

Low tide 22:58 0.4 m

Indicative heights above chart datum. Coefficient: 20 for the weakest tides, 120 for the strongest.

Look up a past day in Colombo

Curious about the weather in Colombo on a given day? Choose a date: we read it from the ERA5 reanalysis (ECMWF / Copernicus C3S), which runs until about a week ago.

Colombo weather at a glance

This page gathers everything about the weather in Colombo, Western Province: conditions now, the forecast for each part of the day and the trend for the coming week. At the moment the sky is “mainly clear”, it is 28 °C (feels like 39 °C) and the wind blows at 16 km/h.

Expected range today: 28 °C to 29 °C and around 8 mm of rain; keep an eye on thunderstorms. The forecast comes from the AtmoAtlas engine, which combines ECMWF-AIFS, NOAA GFS and DWD ICON, adjusts cloud cover with METAR reports and uses convective energy (CAPE) to flag storms, plus the tide times for Colombo.

Colombo weather data for developers

Use the Colombo forecast in your own website or app: one JSON call returns weather, air quality, tides and sun and moon times. The free key needs no card.

Create a free key

Where does this forecast come from? Our engine, checked every day against 1125 weather stations