Jaffna weather in August
Temperature, sea and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Fair
Best time to visit: January – March
What is the weather like in Jaffna in August?
In August, Jaffna is hot: daytime highs average 30 °C, and even at night it stays warm at around 27 °C. The sea averages 28.7 °C – lovely and warm for swimming. The sun shines for around 7 hours a day. Rain is frequent, with about 11 rainy days and 54 mm in total. On about 19 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. It is often windy, with gusts of around 31 km/h. All in all, August is a so-so month for a holiday in Jaffna.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 58 | 56 | 53 |
| Day | 31° | 30° | 30° |
| Night | 28° | 27° | 27° |
| Sea | 29° | 29° | 29° |
| Sun | 6 h | 7 h | 7 h |
| Rain days | 9 | 11 | 13 |
More details for August
- Daylight
- 12 h 27 min06:01 – 18:28
- UV index
- 13 · extremeclear sky, noon (estimate)All months
- Muggy days
- 31 daysdew point 18 °C or moreAll months
- Wind
- 31 km/haverage daily peakAll months
- Cloud cover
- 81 %on averageAll months
- Hot days
- 19 days30 °C or moreAll months
- Time zone
- UTC+5:30Asia/Colombo
How the score comes together
- Temperatureweight 50 %60 %
- Sunshineweight 20 %58 %
- Few rainy daysweight 30 %48 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in August
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
- Windproof jacket
Jaffna in August: quick answers
Is Jaffna hot in August?
Yes. In August, Jaffna is hot: daytime highs average 30 °C and nights stay around 27 °C. On about 19 days the thermometer climbs to 30 °C or more.
Can you swim in Jaffna in August?
Yes. In August the sea averages 28.7 °C – lovely and warm for swimming.
Does it rain much in Jaffna in August?
Rain is frequent, with about 11 rainy days and 54 mm in total.
Jaffna month by month
The whole year in JaffnaAll destinations: Sri LankaWhere to go in AugustSea temperature in August
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences