August is one of the cooler months of the year in Kollam, with average highs near 28.8°C and lows around 21.9°C (mean 25.4°C). It is a relatively wet time of year, averaging 204 mm of rainfall and 90% relative humidity across the period.
August is one of the cooler months of the year in Kollam. Across 45 years of records, the warmest August in Kollam was 2023 — when the month averaged 26.7°C — while the coldest was 1985 at 24.5°C. Typical August days reach 28.8°C with nights near 21.9°C. The long-term trend is warming, about 0.2°C per decade.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 25.1°C | 25.1°C | 25.4°C | 25.4°C | 25.9°C | +0.8°C |
| Avg High | 28.6°C | 28.4°C | 28.8°C | 28.8°C | 29.7°C | +1.1°C |
| Avg Low | 21.7°C | 21.8°C | 22.0°C | 22.0°C | 22.0°C | +0.3°C |
| Avg Rain | 205 mm | 175 mm | 200 mm | 237 mm | 203 mm | -2 mm |
August temperatures in Kollam have risen by about 0.9°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 21°C (2016) to a record high of 32.1°C (2023).
Rainfall in August is a relatively wet time of year, averaging 204 mm, with a wettest year of 468 mm.
A good time to visit Kollam
August is a good time to visit Kollam, with days averaging 28.8°C and nights around 21.9°C (mean 25.4°C, close to Kollam's yearly average) and higher rainfall. December and January are marginally more temperate, but August still suits most travellers.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 28.8°C | 22.2°C | 25.5°C | 179 mm | 92% | 2.1 m/s | 5.4 |
| 2024 | 29.1°C | 22.6°C | 25.9°C | 254 mm | 91% | 1.9 m/s | 5.3 |
| 2023 🔥 | 32.1°C | 21.3°C | 26.7°C | 55 mm | 84% | 1.9 m/s | 6.2 |
| 2022 | 29.6°C | 21.7°C | 25.7°C | 285 mm | 90% | 2.1 m/s | 4.9 |
| 2021 | 29.1°C | 22.0°C | 25.5°C | 224 mm | 90% | 2.1 m/s | 5.1 |
| 2020 | 29.6°C | 22.5°C | 26.1°C | 218 mm | 91% | 2.1 m/s | 5.3 |
| 2019 | 28.8°C | 22.3°C | 25.5°C | 418 mm | 90% | 2.1 m/s | 4.6 |
| 2018 | 27.7°C | 22.1°C | 24.9°C | 403 mm | 92% | 2.5 m/s | 4.9 |
| 2017 | 29.3°C | 22.3°C | 25.8°C | 187 mm | 90% | 2 m/s | 5.3 |
| 2016 | 28.7°C | 21.0°C | 24.9°C | 89 mm | 89% | 2.4 m/s | 5.9 |
| 2015 | 30.0°C | 22.5°C | 26.2°C | 93 mm | 89% | 1.9 m/s | 5.9 |
| 2014 🌧️ | 28.6°C | 21.8°C | 25.2°C | 468 mm | 90% | 2.2 m/s | 5 |
| 2013 | 28.4°C | 22.3°C | 25.3°C | 183 mm | 92% | 2.1 m/s | 5.4 |
| 2012 | 29.4°C | 22.2°C | 25.8°C | 210 mm | 87% | 2.1 m/s | 5 |
| 2011 | 29.1°C | 22.3°C | 25.7°C | 174 mm | 88% | 2.2 m/s | 5 |
| 2010 | 28.4°C | 21.5°C | 25.0°C | 146 mm | 91% | 2.4 m/s | 4.8 |
| 2009 | 28.9°C | 22.3°C | 25.6°C | 116 mm | 90% | 2.1 m/s | 5.4 |
| 2008 | 28.8°C | 21.2°C | 25.0°C | 219 mm | 90% | 1.9 m/s | 5.5 |
| 2007 | 28.1°C | 22.5°C | 25.3°C | 210 mm | 91% | 2 m/s | 5 |
| 2006 | 29.0°C | 21.5°C | 25.3°C | 222 mm | 90% | 2 m/s | 5.4 |
| 2005 | 29.4°C | 22.6°C | 26.0°C | 95 mm | 90% | 2.2 m/s | 6.1 |
| 2004 | 28.3°C | 21.9°C | 25.1°C | 168 mm | 90% | 2.4 m/s | 5.5 |
| 2003 | 28.9°C | 21.5°C | 25.2°C | 180 mm | 90% | 2.2 m/s | 5.2 |
| 2002 | 28.6°C | 22.0°C | 25.3°C | 246 mm | 89% | 2.3 m/s | 5.3 |
| 2001 | 28.5°C | 22.2°C | 25.4°C | 161 mm | 90% | 2.4 m/s | 5.2 |
| 2000 | 29.4°C | 21.9°C | 25.7°C | 379 mm | 87% | 2.6 m/s | 4.6 |
| 1999 | 28.2°C | 21.8°C | 25.0°C | 81 mm | 89% | 2.1 m/s | 5.4 |
| 1998 | 29.1°C | 22.3°C | 25.7°C | 247 mm | 89% | 2.2 m/s | 5.2 |
| 1997 | 28.1°C | 21.2°C | 24.6°C | 255 mm | 91% | 2.3 m/s | 4.7 |
| 1996 | 27.6°C | 21.6°C | 24.6°C | 162 mm | 91% | 2.4 m/s | 4.8 |
| 1995 | 28.7°C | 22.1°C | 25.4°C | 168 mm | 90% | 2.3 m/s | 5.2 |
| 1994 | 28.7°C | 21.9°C | 25.3°C | 300 mm | 91% | 2.2 m/s | 4.5 |
| 1993 | 28.6°C | 22.0°C | 25.3°C | 54 mm | 89% | 2.3 m/s | 4.6 |
| 1992 | 28.2°C | 22.2°C | 25.2°C | 163 mm | 91% | 2.5 m/s | 4.4 |
| 1991 | 27.9°C | 21.8°C | 24.8°C | 248 mm | 90% | 2.3 m/s | 4.2 |
| 1990 | 29.0°C | 21.1°C | 25.0°C | 70 mm | 88% | 2.5 m/s | 4.8 |
| 1989 | 28.1°C | 21.3°C | 24.7°C | 120 mm | 90% | 2.3 m/s | 4.7 |
| 1988 | 28.4°C | 21.9°C | 25.1°C | 181 mm | 90% | 2.2 m/s | 4.2 |
| 1987 | 30.3°C | 21.9°C | 26.1°C | 424 mm | 86% | 2.3 m/s | 4.4 |
| 1986 | 29.0°C | 21.6°C | 25.3°C | 250 mm | 87% | 2.4 m/s | 4.9 |
| 1985 ❄️ | 27.6°C | 21.4°C | 24.5°C | 109 mm | 89% | 2.4 m/s | 4.6 |
| 1984 | 28.4°C | 21.9°C | 25.1°C | 77 mm | 89% | 2.3 m/s | 5.6 |
| 1983 | 29.0°C | 21.9°C | 25.5°C | 158 mm | 87% | 2.2 m/s | — |
| 1982 | 28.2°C | 21.8°C | 25.0°C | 245 mm | 91% | 2.1 m/s | — |
| 1981 | 28.2°C | 21.3°C | 24.7°C | 277 mm | 90% | 2.3 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 28.8°C with lows near 21.9°C (mean 25.4°C), based on 45 years of NASA POWER data.
August averages 204 mm of rainfall in Kollam, a relatively wet time of year. The wettest on record was 468 mm in 2014.
The hottest August reached 32.1°C in 2023. The coldest dipped to 21°C in 2016.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 0.9°C. Daytime highs moved from 28.3°C to 29.7°C and overnight lows from 21.7°C to 22°C over the same span.
August is one of the cooler months of the year in Kollam and a relatively wet time of year, so plan for around 28.8°C daytime highs and 21.9°C at night.
Not quite — August is the 5th coolest month in Kollam, averaging 25.4°C.
For August in Kollam, pack light layers you can adjust through the day, with typical highs of 28.8°C and lows of 21.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 90% — quite humid.
Average wind speed in August is 2.2 m/s. The windiest August on record averaged 2.6 m/s (2000).
The wettest August on record was 2014 with 468 mm. On average, August sees 204 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Kollam behaves each August, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for August specifically, along with year-by-year records and how the month has changed over the decades.
