🇱🇰 Weather in Bentota in August
This is what the weather in Bentota (Sri Lanka) was like in August in 2017–2026.
Key facts at a glance
Avg. daytime high
28.0 °C
27.1 °C – 28.7 °C
Avg. night-time low
25.5 °C
24.8 °C – 26.1 °C
Avg. rain days in period
24.4
79 % of days · ≥ 1.0 mm
Avg. precipitation in period
157 mm
85.5 mm – 279 mm
Avg. sunshine per day
n/a
Sunshine duration is not available from this data source.
Avg. sea temperature
–
Sea temperature unavailable for today (daily limit).
Extremes: Highest temperature 29.8 °C (13 Aug 2023) · Lowest temperature 23.7 °C (18 Aug 2019) · Avg. daily peak wind 24 km/h
Weather mix of all days
- 3Sunny
- 33Partly cloudy
- 30Cloudy
- 136Light rain
- 108Rain
Summary
- On average 28.0 °C during the day and 25.5 °C at night.
- On average 24.4 rain days (Rain day = at least 1.0 mm of precipitation) with 157 mm of precipitation in total.
- Prevailing: Light rain.
- Warmest year: 2023 (avg. 28.7 °C), coolest: 2018 (avg. 27.1 °C).
- Wettest year: 2019 (279 mm), driest: 2025 (85.5 mm).
- Extremes: 29.8 °C on 13 Aug 2023 and 23.7 °C on 18 Aug 2019.
Overall values from all 10 years. How is this calculated?
Charts
Temperatures per year
Average over your travel period
Precipitation & rain days
Year by year
2026
Avg. max28.2°Avg. min26.0°- Rain days
- 31 Rain days
- Precipitation
- 167 mm
- Avg. sunshine per day
- n/a
- Sea temperature
- –
Max 28.9 °C · Min 25.0 °C
2025
Avg. max27.9°Avg. min25.4°- Rain days
- 17 Rain days
- Precipitation
- 85.5 mm
- Avg. cloud cover
- 76 % cloudy
- Sea temperature
- –
Max 29.0 °C · Min 24.7 °C
2024
Avg. max28.5°Avg. min25.9°- Rain days
- 26 Rain days
- Precipitation
- 171 mm
- Avg. cloud cover
- 83 % cloudy
- Sea temperature
- –
Max 29.4 °C · Min 25.2 °C
2023
Avg. max28.7°Avg. min26.1°- Rain days
- 18 Rain days
- Precipitation
- 98.3 mm
- Avg. cloud cover
- 60 % cloudy
- Sea temperature
- –
Max 29.8 °C · Min 25.5 °C
2022
Avg. max27.4°Avg. min25.1°- Rain days
- 24 Rain days
- Precipitation
- 190 mm
- Avg. cloud cover
- 83 % cloudy
- Sea temperature
- –
Max 28.3 °C · Min 24.2 °C
2021
Avg. max27.7°Avg. min25.4°- Rain days
- 29 Rain days
- Precipitation
- 195 mm
- Avg. cloud cover
- 90 % cloudy
- Sea temperature
- –
Max 28.3 °C · Min 24.8 °C
2020
Avg. max28.1°Avg. min25.5°- Rain days
- 20 Rain days
- Precipitation
- 150 mm
- Avg. cloud cover
- 75 % cloudy
- Sea temperature
- –
Max 29.1 °C · Min 25.1 °C
2019
Avg. max28.1°Avg. min25.7°- Rain days
- 28 Rain days
- Precipitation
- 279 mm
- Avg. cloud cover
- 94 % cloudy
- Sea temperature
- –
Max 29.1 °C · Min 23.7 °C
2018
Avg. max27.1°Avg. min24.8°- Rain days
- 25 Rain days
- Precipitation
- 111 mm
- Avg. cloud cover
- 88 % cloudy
- Sea temperature
- –
Max 27.7 °C · Min 24.1 °C
2017
Avg. max28.1°Avg. min25.6°- Rain days
- 26 Rain days
- Precipitation
- 125 mm
- Avg. cloud cover
- 82 % cloudy
- Sea temperature
- –
Max 28.6 °C · Min 24.9 °C
Frequently asked questions
- How warm is it in Bentota in August?
- Daytime highs averaged 28.0 °C, night-time lows 25.5 °C. The highest value of the past 10 years was 29.8 °C (13 Aug 2023), the lowest 23.7 °C (18 Aug 2019).
- How often does it rain in Bentota in August?
- On average there were 24.4 rain days (at least 1 mm) with 157 mm of precipitation in total.
Check your exact travel dates
Choose your travel period – we show the weather for exactly those days.
Other destinations in August
Data sources
- Weather data
- Data obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program
Reanalysis (weather model constrained by observations) on a coarse grid of about 50 km. Values represent a large area and can differ from local conditions, especially on islands, coasts and in mountains. No sunshine duration.
Reanalysis (weather model constrained by observations)
Reanalysis values represent a grid cell (approx. 25–50 km) and may differ from local measurements on coasts, islands and in mountains. - Sea temperature
- MUR SST data were provided by JPL under support by NASA MEaSUREs program; accessed via NOAA CoastWatch ERDDAP
Daily multi-scale ultra-high resolution (≈ 1 km) analysis of satellite measurements (infrared, microwave) and in-situ data. Represents the foundation temperature below the daily warm surface layer. (Satellite and in-situ analysis) - Place search
- Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)