worldweather31°Cexceptionally warm
usually 28°C–30°C
warmer than 99% of similar days
night: exceptionally warm
rain: more rain than usual
wind: lighter than usual
Weather in Sri Lanka - today, tomorrow and 14-day forecast
Right now temperatures across Sri Lanka range from 28° to 33°. Below: today's conditions city by city, a live weather map, the 14-day outlook and month-by-month climate to help you pick the best time to travel.
Country values are the median of forecasts from 10 cities; the range shows local differences. Methodology.
Weather in Sri Lanka's cities today
☁️Anuradhapura
33°no rain
🌧️Colombo
31°💧 5.3 mm
🌧️Sri Jayawardenepura Kotte
31°💧 4.6 mm
🌧️Galle
31°💧 6.8 mm
🌧️Trincomalee
31°💧 4.4 mm
🌧️Matara
31°💧 1.4 mm
🌧️Batticaloa
31°💧 3.9 mm
☁️Jaffna
29°💧 0.9 mm
🌧️Negombo
29°💧 3 mm
🌧️Kandy
28°💧 3.3 mm
Weather map - today's temperatures
Next days in Sri Lanka
today🌧️
31°💧 3.9 mm
Sun🌧️
31°💧 4.4 mm
Mon🌧️
30°💧 7.4 mm
Tue🌧️
29°💧 11.9 mm
Wed🌧️
29°💧 6.9 mm
Thu☁️
29°💧 4.2 mm
Fri🌧️
29°💧 12 mm
Sat🌧️
29°💧 11.7 mm
Forecast vs 1991-2020 climate normal
NASA POWERHow does the current forecast compare with normal?
We compare the coming days with weather usually observed at this time of year.
Saturday 5 Sept in Sri Lanka, the forecast high is 31°C. Typical daytime temperatures at this time of year range from 28°C to 30°C, so it will be exceptionally warm. It is warmer than 99% of similar days.
31°Cexceptionally warm
usually 28°C–30°C
warmer than 97% of similar days
night: exceptionally warm
rain: more rain than usual
wind: lighter than usual
30°Cwarmer than usual
usually 28°C–30°C
warmer than 82% of similar days
night: exceptionally warm
rain: more rain than usual
wind: lighter than usual
29°Cnear normal
usually 28°C–30°C
night: exceptionally warm
rain: exceptionally wet
wind: lighter than usual
29°Cnear normal
usually 28°C–30°C
night: exceptionally warm
rain: more rain than usual
wind: lighter than usual
29°Cnear normal
usually 28°C–30°C
night: exceptionally warm
rain: more rain than usual
wind: typical
29°Cnear normal
usually 28°C–30°C
night: exceptionally warm
rain: exceptionally wet
wind: typical
How warm was this week in previous years?
Each bar shows the average daily high during the same 7-day period in each year.
cooler yearstypical rangewarmer years2026 forecastcurrent forecast
From 1981 to 2025, the 5-11 Sept period averaged 29°C by day. The coolest year was 2013 (28°C) and the warmest was 2001 (31°C). The current forecast averages 30°C - higher than in 89% of historical years.
Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.
14-day forecast - Sri Lanka
Sri Lanka 30 & 45-day weather - long-range outlook
Next 16 days · forecast
29°
around 27° at night · days with rain: 16
Weeks 3-4 · avg for September
31°
around 26° at night · rain chance 56%
Weeks 5-7 · avg for October
31°
around 25° at night · rain chance 64%
The 30 & 45-day outlook for Sri Lanka: the next 16 days are a numerical forecast updated daily - on average 29° by day and 27° at night. Further out we rely on multi-year climate averages: around 31° in September, and about 31° in October. Forecasts beyond two weeks are indicative only.
Today vs the next days - Sri Lanka cities
| City | Today | +3 days | +7 days | Rain today |
|---|---|---|---|---|
| ☁️ Anuradhapura | 33℃ | 34℃ | 33℃ | - |
| 🌧️ Colombo | 31℃ | 29℃ | 28℃ | 5.3 mm |
| 🌧️ Sri Jayawardenepura Kotte | 31℃ | 30℃ | 28℃ | 4.6 mm |
| 🌧️ Galle | 31℃ | 28℃ | 28℃ | 6.8 mm |
| 🌧️ Trincomalee | 31℃ | 32℃ | 32℃ | 4.4 mm |
| 🌧️ Matara | 31℃ | 29℃ | 28℃ | 1.4 mm |
| 🌧️ Batticaloa | 31℃ | 32℃ | 32℃ | 3.9 mm |
| ☁️ Jaffna | 29℃ | 29℃ | 29℃ | 0.9 mm |
| 🌧️ Negombo | 29℃ | 29℃ | 28℃ | 3 mm |
| 🌧️ Kandy | 28℃ | 30℃ | 29℃ | 3.3 mm |
Day-by-day forecast for Sri Lanka
Saturday5 September 2026
🌧️31°light rain
Sunday6 September 2026
🌧️31°moderate rain
Monday7 September 2026
🌧️30°light rain
Tuesday8 September 2026
🌧️29°moderate rain
Wednesday9 September 2026
🌧️29°light rain
Thursday10 September 2026
☁️29°overcast clouds
Friday11 September 2026
🌧️29°light rain
Saturday12 September 2026
🌧️29°light rain
Sunday13 September 2026
🌧️28°light rain
Monday14 September 2026
🌧️28°light rain
Tuesday15 September 2026
🌧️28°light rain
Wednesday16 September 2026
🌧️28°moderate rain
Thursday17 September 2026
🌧️29°moderate rain
Friday18 September 2026
🌧️28°light rain
Saturday19 September 2026
🌧️29°light rain
Sunday20 September 2026
🌧️29°moderate rain
Sea temperature - Sri Lanka
| Beach | Water today | Water week avg | Waves | How's the water? |
|---|---|---|---|---|
| Batticaloa | 31℃ | 31℃ | 1 m | very warm |
| Jaffna | 30℃ | 30℃ | 0.6 m | very warm |
| Negombo | 30℃ | 30℃ | 1.3 m | very warm |
| Colombo | 30℃ | 30℃ | 1.2 m | very warm |
| Trincomalee | 30℃ | 29℃ | 0.2 m | very warm |
| Sri Jayawardenepura Kotte | 29℃ | 30℃ | 1.3 m | very warm |
| Galle | 29℃ | 29℃ | 1.6 m | very warm |
| Matara | 29℃ | 29℃ | 1.6 m | very warm |
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.
Air quality and smog in Sri Lanka
| City | PM2.5 (µg/m³) | PM10 (µg/m³) | Air quality |
|---|---|---|---|
| Kandy District | 17.8 | 19.2 | good |
| Moratuwa | 9.8 | 12.3 | very good |
| Kolombo | 9.8 | 12.3 | very good |
| Negombo | 8.5 | 10.9 | very good |
| Trikunamalaja | 6.4 | 8.2 | very good |
| Dzafna | 6.3 | 9.6 | very good |
| Kalmunai | 5.8 | 7.8 | very good |
Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-09-05, 06:30).
Sri Lanka weather through the year
Sri Lanka weather month by month - when is the best time to go?
Weather in other countries in Asia
Public holidays in Sri Lanka - when are the long weekends?
Next long weekend in Sri Lanka: Il Full Moon Poya Day (24 November, Tuesday) - Saturday–Tuesday if you take Monday off (4 days).
2026
26 SeptemberSaturday
Binara Full Moon Poya Day
falls on a weekend25 OctoberSunday
Vap Full Moon Poya Day
falls on a weekend8 NovemberSunday
Deepavali
falls on a weekend24 NovemberTuesday
Il Full Moon Poya Day
long weekend + bridge day23 DecemberWednesday
Unduvap Full Moon Poya Day
25 DecemberFriday
Christmas Day
long weekend2027
15 JanuaryFriday
Tamil Thai Pongal Day
long weekend22 JanuaryFriday
Duruthu Full Moon Poya Day
long weekend4 FebruaryThursday
Independence Day
long weekend + bridge day20 FebruarySaturday
Navam Full Moon Poya Day
falls on a weekend6 MarchSaturday
Maha Shivaratri Day
falls on a weekend10 MarchWednesday
Eid al-Fitr
Public holidays (statutory days off) - shops, offices and some attractions may be closed. A "bridge day" is a workday between a holiday and the weekend worth taking as leave. Lunar holiday dates marked as tentative may shift by one day after the official announcement.
Calendar sources · Verified on .
FAQ - Sri Lanka weather
What is the weather like in Sri Lanka today?
Today it is about 31° during the day and 27° at night, light rain.
How far ahead can I check the forecast for Sri Lanka?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.