Climate averages 1991–2020
Batticaloa weather
in August.
A very hot, fairly dry month: the 3rd warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a very hot month in Batticaloa: daytime highs average 34.2°C and nights cool to about 26.1°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 31 mm of rain on roughly 7 days, which makes August a fairly dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 22 min on an average August day.
The nearest other city in this atlas is Kalmunai (37 km away). In August its highs average 32.8°C, 1.4°C cooler than Batticaloa, with 42 mm of rain.
Among the 12 cities listed in Sri Lanka, Batticaloa ranks 1st of 12 for the warmest August highs and 1st of 12 for the driest August (rainfall, lowest first). The mean August high of those 12 cities is 30.0°C; Batticaloa is 4.2°C warmer than that mean.
From August to September, average highs fall by 1.0°C to 33.2°C, and monthly rainfall rises from 31 mm to 48 mm.
The annual picture
August 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
Batticaloa climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.1°C23.2°C | 23.2°C | 170 | 15.7 | 11.712 h |
| February | 28.2°C23.3°C | 23.3°C | 89 | 11.2 | 11.912 h |
| March | 30.2°C24.0°C | 24.0°C | 52 | 8.2 | 12.112 h |
| April | 31.8°C25.3°C | 25.3°C | 59 | 10.5 | 12.312 h |
| May | 33.4°C26.2°C | 26.2°C | 50 | 9.3 | 12.512 h |
| June | 34.5°C26.6°C | 26.6°C | 25 | 5.3 | 12.613 h |
| July | 34.5°C26.5°C | 26.5°C | 24 | 5.8 | 12.513 h |
| August, selected | 34.2°C26.1°C | 26.1°C | 31 | 7.3 | 12.412 h |
| September | 33.2°C25.6°C | 25.6°C | 48 | 11.1 | 12.212 h |
| October | 31.0°C24.8°C | 24.8°C | 152 | 18.9 | 12.012 h |
| November | 28.5°C24.0°C | 24.0°C | 283 | 23.6 | 11.812 h |
| December | 27.3°C23.5°C | 23.5°C | 302 | 21.6 | 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
August in nearby cities
- Kalmunai in AugustSri Lanka · 37 kmHigh 32.8°C · Low 26.1°C · 42 mm rain
- Trincomalee in AugustSri Lanka · 109 kmHigh 33.3°C · Low 26.0°C · 45 mm rain
- Kandy in AugustSri Lanka · 126 kmHigh 26.8°C · Low 21.1°C · 90 mm rain
- Ambalantota in AugustSri Lanka · 192 kmHigh 31.2°C · Low 25.3°C · 52 mm rain
- Negombo in AugustSri Lanka · 212 kmHigh 28.4°C · Low 25.0°C · 165 mm rain
- Colombo in AugustSri Lanka · 221 kmHigh 28.4°C · Low 24.6°C · 168 mm rain
- Dehiwala-Mount Lavinia in AugustSri Lanka · 223 kmHigh 28.1°C · Low 24.7°C · 183 mm rain
- Matara in AugustSri Lanka · 234 kmHigh 28.2°C · Low 24.7°C · 159 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 Batticaloa) is explained once on the Batticaloa year overview and on the Sources, method and limits page.