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Weather in Negombo - 14-day forecast

Detailed weather forecast for Negombo, Sri Lanka: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Negombo
today🌧️ 28°💧 0.8 mm
Thu🌧️ 28°💧 1.4 mm
Fri🌧️ 28°💧 3.4 mm
Sat🌧️ 28°💧 0.5 mm
Sun🌧️ 29°💧 1.6 mm
Mon🌧️ 28°💧 2 mm
Tue🌧️ 28°💧 1.1 mm
Wed🌧️ 28°💧 0.9 mm

14-day forecast - Negombo

WEATHER FORECAST · 15 DAYSNegomboSri Lanka · 16-day forecast28°🌧️Todaynight 27° · wind 6 m/s · humidity 77%🌅 06:00 🌇 18:31 · daylight 12 h 31 min28°28°27°28°27°28°27°29°27°28°27°28°27°28°26°28°27°28°27°28°26°28°26°27°27°28°27°RAIN (MM)0.81.43.40.51.621.10.92.95.55.66.13.86.54.5Wed8.07Thu9.07Fri10.07Sat11.07Sun12.07Mon13.07Tue14.07Wed15.07Thu16.07Fri17.07Sat18.07Sun19.07Mon20.07Tue21.07Wed22.07AVERAGE28°MAX.29° (12.07)MIN.27° (21.07)TOTAL RAIN46.6 mmSUNNY DAYS0world-prices.com · updated 2026-07-08

📅 Negombo 30 & 45-day weather - long-range outlook

Next 16 days · forecast
28°
around 27° at night · days with rain: 13
Weeks 3-4 · avg for July
31°
around 26° at night · rain chance 34%
Weeks 5-7 · avg for August
31°
around 26° at night · rain chance 34%
The 30 & 45-day outlook for Negombo: the next 16 days are a numerical forecast updated daily - on average 28° by day and 27° at night. Further out we rely on multi-year climate averages: around 31° in July, and about 31° in August. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Negombo

Wednesday8 July 2026
🌧️28°light rain
sunrise 06:00 · sunset 18:31 · night 27° · evening 28° · rain 0.76 mm · humidity 77% · wind 6 m/s · clouds 17%
Thursday9 July 2026
🌧️28°light rain
sunrise 06:00 · sunset 18:31 · night 27° · evening 28° · rain 1.35 mm · humidity 78% · wind 6 m/s · clouds 99%
Friday10 July 2026
🌧️28°light rain
sunrise 06:00 · sunset 18:31 · night 27° · evening 28° · rain 3.44 mm · humidity 77% · wind 7 m/s · clouds 99%
Saturday11 July 2026
🌧️28°light rain
sunrise 06:01 · sunset 18:31 · night 27° · evening 27° · rain 0.54 mm · humidity 77% · wind 7 m/s · clouds 95%
Sunday12 July 2026
🌧️29°light rain
sunrise 06:01 · sunset 18:32 · night 27° · evening 28° · rain 1.6 mm · humidity 76% · wind 7 m/s · clouds 79%
Monday13 July 2026
🌧️28°light rain
sunrise 06:01 · sunset 18:32 · night 27° · evening 27° · rain 2.04 mm · humidity 78% · wind 7 m/s · clouds 100%
Tuesday14 July 2026
🌧️28°light rain
sunrise 06:01 · sunset 18:32 · night 27° · evening 27° · rain 1.08 mm · humidity 75% · wind 7 m/s · clouds 96%
Wednesday15 July 2026
🌧️28°light rain
sunrise 06:01 · sunset 18:32 · night 26° · evening 27° · rain 0.93 mm · humidity 73% · wind 7 m/s · clouds 100%
Thursday16 July 2026
🌧️28°light rain
sunrise 06:02 · sunset 18:32 · night 27° · evening 27° · rain 2.91 mm · humidity 75% · wind 7 m/s · clouds 79%
Friday17 July 2026
🌧️28°light rain
sunrise 06:02 · sunset 18:32 · night 27° · evening 27° · rain 5.52 mm · humidity 77% · wind 6 m/s · clouds 72%
Saturday18 July 2026
🌧️28°light rain
sunrise 06:02 · sunset 18:32 · night 26° · evening 27° · rain 5.58 mm · humidity 78% · wind 7 m/s · clouds 67%
Sunday19 July 2026
🌧️28°light rain
sunrise 06:02 · sunset 18:32 · night 26° · evening 27° · rain 6.09 mm · humidity 78% · wind 7 m/s · clouds 100%
Monday20 July 2026
🌧️27°light rain
sunrise 06:02 · sunset 18:31 · night 27° · evening 27° · rain 3.75 mm · humidity 79% · wind 7 m/s · clouds 100%
Tuesday21 July 2026
🌧️27°light rain
sunrise 06:02 · sunset 18:31 · night 27° · evening 27° · rain 6.51 mm · humidity 82% · wind 8 m/s · clouds 99%
Wednesday22 July 2026
🌧️28°light rain
sunrise 06:03 · sunset 18:31 · night 27° · evening 27° · rain 4.5 mm · humidity 74% · wind 8 m/s · clouds 96%
Thursday23 July 2026
🌧️28°light rain
sunrise 06:03 · sunset 18:31 · night 26° · evening 27° · rain 1.56 mm · humidity 77% · wind 7 m/s · clouds 100%

☀️ UV index in Negombo - is it safe to sunbathe?

☀️ UV INDEX · 16-DAY FORECASTNegombo03681111+8.4UV VERY HIGHtoday, daily maxSPF 50, long sleeves and shade between 10:00 and16:00.⏱ Unprotected fair skin may burn in about 25 min8Wed8.078Thu9.079Fri10.078Sat11.078Sun12.078Mon13.078Tue14.077Wed15.078Thu16.078Fri17.078Sat18.077Sun19.077Mon20.078Tue21.078Wed22.077Thu23.070-2 low3-5 moderate6-7 high8-10 very high11+ extremeworld-prices.com · 2026-07-08
Today the UV index in Negombo is 8 (very high) - unprotected fair skin can burn in about 25 minutes. SPF 50, long sleeves and shade between 10:00 and 16:00.

🌊 Sea temperature - Negombo

Water today
30°C
Week avg
29°C
Waves today
1.9 m
How's the water?
very warm
16-day sea temperature forecast:
8.07 30°C9.07 30°C10.07 29°C11.07 30°C12.07 29°C13.07 29°C14.07 29°C15.07 29°C16.07 29°C
Average sea temperature through the year:
Jan 28°CFeb 29°CMar 31°CApr 31°CMay 31°CJun 30°CJul 29°CAug 29°CSep 29°COct 29°CNov 30°CDec 29°C
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.

Air quality and smog in Negombo

Air quality in Negombo is currently good. Fine particulate PM2.5: 15.5 µg/m³, PM10: 20.5 µg/m³.
CityPM2.5 (µg/m³)PM10 (µg/m³)Air quality
Kalmunai17.938.3good
Moratuwa16.521.4good
Kolombo16.521.4good
Negombo15.520.5good
Dzafna1524.7good
Kandy District11.416.3very good
Trikunamalaja1015.4very good
Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-07-08, 06:30).

Negombo weather through the year

WEATHER THROUGH THE YEARNegombo32°23°32°24°33°25°33°25°32°26°32°26°31°26°31°26°31°26°31°25°31°24°31°24°CHANCE OF RAIN (%)212324356451343456645441JanFebMarAprMayJunJulAugSepOctNovDecWARMESTMar (33°)COLDESTJul (31°)DRIESTJan (21%)WETTESTMay (64%)world-prices.com · 2026-07-08 · ★ best months

Warmest, driest months on average: January, February, December.

Nearby places

ColomboSrijayewardenepurakotteKandy

FAQ - Negombo weather

What is the weather like in Negombo today?
Today it is about 28° during the day and 27° at night, light rain.
How far ahead can I check the forecast for Negombo?
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.