Climate averages 1991–2020
Negombo weather
in June.
A hot, very wet month: the joint 8th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a hot month in Negombo: daytime highs average 28.8°C and nights cool to about 25.4°C. By daytime temperature it is the joint 8th warmest of the 12 months.
Expect about 224 mm of rain on roughly 27 days, which makes June a very wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 32 min on an average June day.
The nearest other city in this atlas is Colombo (30 km away). In June its highs average 28.8°C, about as warm as Negombo, with 242 mm of rain.
Among the 12 cities listed in Sri Lanka, Negombo ranks joint 7th of 12 for the warmest June highs and 9th of 12 for the driest June (rainfall, lowest first). The mean June high of those 12 cities is 30.4°C; Negombo is 1.5°C cooler than that mean.
From June to July, average highs fall by 0.3°C to 28.5°C, and monthly rainfall falls from 224 mm to 176 mm.
The annual picture
June in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Negombo climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.2°C23.2°C | 23.2°C | 38 | 6.2 | 11.812 h |
| February | 31.8°C23.7°C | 23.7°C | 40 | 6.5 | 11.912 h |
| March | 31.8°C24.8°C | 24.8°C | 76 | 15.8 | 12.112 h |
| April | 30.7°C25.5°C | 25.5°C | 163 | 26.0 | 12.312 h |
| May | 29.6°C25.7°C | 25.7°C | 255 | 28.6 | 12.412 h |
| June, selected | 28.8°C25.4°C | 25.4°C | 224 | 27.0 | 12.513 h |
| July | 28.5°C25.2°C | 25.2°C | 176 | 24.5 | 12.512 h |
| August | 28.4°C25.0°C | 25.0°C | 165 | 23.9 | 12.412 h |
| September | 28.6°C24.9°C | 24.9°C | 215 | 25.3 | 12.212 h |
| October | 28.8°C24.5°C | 24.5°C | 315 | 26.4 | 12.012 h |
| November | 29.0°C24.0°C | 24.0°C | 271 | 22.3 | 11.812 h |
| December | 29.1°C23.5°C | 23.5°C | 137 | 14.1 | 11.712 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
June in nearby cities
- Colombo in JuneSri Lanka · 30 kmHigh 28.8°C · Low 25.1°C · 242 mm rain
- Dehiwala-Mount Lavinia in JuneSri Lanka · 41 kmHigh 28.6°C · Low 25.1°C · 256 mm rain
- Kandy in JuneSri Lanka · 88 kmHigh 27.0°C · Low 21.7°C · 79 mm rain
- Galle in JuneSri Lanka · 136 kmHigh 28.1°C · Low 25.2°C · 244 mm rain
- Matara in JuneSri Lanka · 160 kmHigh 28.5°C · Low 25.1°C · 187 mm rain
- Ambalantota in JuneSri Lanka · 178 kmHigh 31.0°C · Low 25.8°C · 60 mm rain
- Batticaloa in JuneSri Lanka · 212 kmHigh 34.5°C · Low 26.6°C · 25 mm rain
- Trincomalee in JuneSri Lanka · 216 kmHigh 33.8°C · Low 26.6°C · 18 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Negombo) is explained once on the Negombo year overview and on the Sources, method and limits page.