worldweather31°Cexceptionally warm
usually 27°C–29°C
warmer than 99% of similar days
night: exceptionally warm
rain: typical rainfall
wind: exceptionally light
Weather in Sri Jayawardenepura Kotte - 14-day forecast
Detailed weather forecast for Sri Jayawardenepura Kotte, Sri Lanka: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Sri Jayawardenepura Kotte
today🌧️
31°💧 4.6 mm
Sun🌧️
30°💧 7.8 mm
Mon🌧️
30°💧 14.8 mm
Tue🌧️
30°💧 16.9 mm
Wed🌧️
29°💧 10.5 mm
Thu🌧️
29°💧 21.3 mm
Fri🌧️
29°💧 25.2 mm
Sat🌧️
28°💧 31.3 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 Jayawardenepura Kotte, the forecast high is 31°C. Typical daytime temperatures at this time of year range from 27°C to 29°C, so it will be exceptionally warm. It is warmer than 99% of similar days.
30°Cexceptionally warm
usually 27°C–29°C
warmer than 97% of similar days
night: exceptionally warm
rain: more rain than usual
wind: lighter than usual
30°Cexceptionally warm
usually 27°C–29°C
warmer than 92% of similar days
night: exceptionally warm
rain: exceptionally wet
wind: exceptionally light
30°Cexceptionally warm
usually 28°C–29°C
warmer than 90% of similar days
night: exceptionally warm
rain: exceptionally wet
wind: lighter than usual
29°Cwarmer than usual
usually 28°C–29°C
warmer than 86% of similar days
night: exceptionally warm
rain: exceptionally wet
wind: lighter than usual
29°Cnear normal
usually 28°C–29°C
night: exceptionally warm
rain: exceptionally wet
wind: lighter than usual
29°Cwarmer than usual
usually 28°C–29°C
warmer than 73% of similar days
night: exceptionally warm
rain: exceptionally wet
wind: lighter than usual
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 28°C by day. The coolest year was 2013 (27°C) and the warmest was 2002 (30°C). The current forecast averages 30°C - higher than in 96% 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Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window.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 Jayawardenepura Kotte
Sri Jayawardenepura Kotte 30 & 45-day weather - long-range outlook
Next 16 days · forecast
29°
around 26° at night · days with rain: 16
Weeks 3-4 · avg for September
31°
around 26° at night · rain chance 60%
Weeks 5-7 · avg for October
31°
around 25° at night · rain chance 65%
The 30 & 45-day outlook for Sri Jayawardenepura Kotte: the next 16 days are a numerical forecast updated daily - on average 29° by day and 26° 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.
Day-by-day forecast for Sri Jayawardenepura Kotte
Saturday5 September 2026
🌧️31°light rain
Sunday6 September 2026
🌧️30°moderate rain
Monday7 September 2026
🌧️30°moderate rain
Tuesday8 September 2026
🌧️30°moderate rain
Wednesday9 September 2026
🌧️29°light rain
Thursday10 September 2026
🌧️29°moderate rain
Friday11 September 2026
🌧️29°moderate rain
Saturday12 September 2026
🌧️28°moderate rain
Sunday13 September 2026
🌧️28°light rain
Monday14 September 2026
🌧️28°moderate rain
Tuesday15 September 2026
🌧️28°light rain
Wednesday16 September 2026
🌧️28°moderate rain
Thursday17 September 2026
🌧️29°moderate rain
Friday18 September 2026
🌧️28°moderate rain
Saturday19 September 2026
🌧️29°moderate rain
Sunday20 September 2026
🌧️29°moderate rain
UV index in Sri Jayawardenepura Kotte - is it safe to sunbathe?
Today the UV index in Sri Jayawardenepura Kotte is 9 (very high) - unprotected fair skin can burn in about 20 minutes. SPF 50, long sleeves and shade between 10:00 and 16:00.
Sea temperature - Sri Jayawardenepura Kotte
Water today
29°C
Week avg
30°C
Waves today
1.3 m
How's the water?
very warm
16-day sea temperature forecast:
Average sea temperature through the year:
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.
Sri Jayawardenepura Kotte weather through the year
Warmest, driest months on average: January, February, December.
Upcoming public holidays in Sri Lanka: Binara Full Moon Poya Day — 26 September · Vap Full Moon Poya Day — 25 October · Deepavali — 8 November. Full calendar and travel notes
Nearby and related places
FAQ - Sri Jayawardenepura Kotte weather
What is the weather like in Sri Jayawardenepura Kotte 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 Jayawardenepura Kotte?
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.