October is one of the cooler months of the year in Kollam, with average highs near 30°C and lows around 21.6°C (mean 25.8°C). It is a relatively wet time of year, averaging 296 mm of rainfall and 88% relative humidity across the period.
October is one of the cooler months of the year in Kollam. Across 45 years of records, the warmest October in Kollam was 1990 — when the month averaged 28°C — while the coldest was 1984 at 22.9°C. Typical October days reach 30°C with nights near 21.6°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 | 25.3°C | 25.6°C | 25.8°C | 26.0°C | 26.4°C | +1.1°C |
| Avg High | 29.8°C | 29.8°C | 30.0°C | 30.2°C | 30.3°C | +0.5°C |
| Avg Low | 20.8°C | 21.4°C | 21.7°C | 21.7°C | 22.4°C | +1.6°C |
| Avg Rain | 175 mm | 341 mm | 371 mm | 281 mm | 306 mm | +131 mm |
October temperatures in Kollam have risen by about 1.6°C between 1981–1985 and 2021–2025.
October has ranged from a record low of 16.1°C (1984) to a record high of 34.1°C (1990).
Rainfall in October is a relatively wet time of year, averaging 296 mm, with a wettest year of 615 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.1°C per decade while lows rose 0.4°C per decade, narrowing the gap between day and night.
A quieter season to visit Kollam
If your dates are flexible, the more temperate months of December and January tend to be the most comfortable for visiting Kollam. That said, October — with days averaging 30°C and nights around 21.6°C (mean 25.8°C) and higher rainfall (296 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 30.7°C | 23.3°C | 27.0°C | 288 mm | 90% | 1.4 m/s | 4.8 |
| 2024 | 30.0°C | 22.6°C | 26.3°C | 269 mm | 90% | 1.2 m/s | 4.6 |
| 2023 | 30.6°C | 22.8°C | 26.7°C | 376 mm | 88% | 1.1 m/s | 5 |
| 2022 | 30.8°C | 22.1°C | 26.5°C | 207 mm | 88% | 1.3 m/s | 5 |
| 2021 | 29.4°C | 22.1°C | 25.8°C | 511 mm | 91% | 1.4 m/s | 4.5 |
| 2020 | 30.3°C | 21.7°C | 26.0°C | 187 mm | 89% | 1.7 m/s | 5.4 |
| 2019 | 29.8°C | 22.0°C | 25.9°C | 421 mm | 89% | 1.1 m/s | 4.5 |
| 2018 | 30.7°C | 21.7°C | 26.2°C | 332 mm | 87% | 1 m/s | 4.8 |
| 2017 | 29.3°C | 21.9°C | 25.6°C | 232 mm | 89% | 1.4 m/s | 4.9 |
| 2016 | 31.2°C | 21.4°C | 26.3°C | 135 mm | 81% | 1.7 m/s | 5.8 |
| 2015 | 31.2°C | 21.6°C | 26.4°C | 331 mm | 87% | 1.1 m/s | 4.8 |
| 2014 | 29.2°C | 21.8°C | 25.5°C | 352 mm | 89% | 1.2 m/s | 5.1 |
| 2013 | 29.7°C | 20.8°C | 25.3°C | 195 mm | 88% | 1.6 m/s | 5.5 |
| 2012 | 30.9°C | 22.4°C | 26.7°C | 220 mm | 86% | 1.3 m/s | 5.2 |
| 2011 | 30.4°C | 21.8°C | 26.1°C | 160 mm | 85% | 1.3 m/s | 5.4 |
| 2010 | 29.4°C | 22.0°C | 25.7°C | 432 mm | 90% | 1.8 m/s | 5.2 |
| 2009 | 30.8°C | 21.9°C | 26.3°C | 131 mm | 85% | 1.4 m/s | 5.8 |
| 2008 | 30.0°C | 20.6°C | 25.3°C | 358 mm | 88% | 1.2 m/s | 5.1 |
| 2007 | 29.9°C | 21.2°C | 25.5°C | 344 mm | 90% | 1.4 m/s | 5.1 |
| 2006 🌧️ | 29.6°C | 22.0°C | 25.8°C | 615 mm | 90% | 1.3 m/s | 4.7 |
| 2005 | 29.8°C | 22.0°C | 25.9°C | 332 mm | 89% | 1.5 m/s | 5.2 |
| 2004 | 29.6°C | 22.0°C | 25.8°C | 394 mm | 90% | 1.4 m/s | 5.2 |
| 2003 | 29.6°C | 22.4°C | 26.0°C | 564 mm | 89% | 1.5 m/s | 5.2 |
| 2002 | 31.2°C | 22.3°C | 26.8°C | 495 mm | 89% | 1.3 m/s | 4.7 |
| 2001 | 29.4°C | 22.5°C | 26.0°C | 308 mm | 90% | 1.6 m/s | 5.3 |
| 2000 | 29.7°C | 20.3°C | 25.0°C | 172 mm | 88% | 1.6 m/s | 5.2 |
| 1999 | 28.3°C | 22.2°C | 25.2°C | 489 mm | 92% | 1.8 m/s | 4.4 |
| 1998 | 29.3°C | 20.3°C | 24.8°C | 441 mm | 91% | 1.8 m/s | 4.7 |
| 1997 | 29.8°C | 22.2°C | 26.0°C | 193 mm | 88% | 0.9 m/s | 5.2 |
| 1996 | 29.0°C | 19.8°C | 24.4°C | 340 mm | 89% | 1.6 m/s | 5 |
| 1995 | 30.1°C | 21.2°C | 25.7°C | 201 mm | 88% | 1.4 m/s | 4.9 |
| 1994 | 29.3°C | 21.8°C | 25.6°C | 463 mm | 90% | 1.3 m/s | 4.3 |
| 1993 | 29.7°C | 21.9°C | 25.8°C | 414 mm | 89% | 1.4 m/s | 4.2 |
| 1992 | 29.6°C | 20.9°C | 25.2°C | 320 mm | 88% | 1.5 m/s | 4.5 |
| 1991 | 29.0°C | 21.8°C | 25.4°C | 303 mm | 88% | 1.6 m/s | 4.2 |
| 1990 🔥 | 34.1°C | 22.0°C | 28.0°C | 243 mm | 81% | 1.3 m/s | 4.8 |
| 1989 | 28.6°C | 20.9°C | 24.8°C | 298 mm | 90% | 1.5 m/s | 5.1 |
| 1988 | 29.8°C | 22.1°C | 25.9°C | 12 mm | 86% | 1.4 m/s | 5.7 |
| 1987 | 29.7°C | 22.4°C | 26.0°C | 346 mm | 89% | 1.1 m/s | 4.4 |
| 1986 | 31.5°C | 21.8°C | 26.6°C | 71 mm | 85% | 1.4 m/s | 5.2 |
| 1985 | 29.7°C | 20.4°C | 25.1°C | 164 mm | 86% | 1.5 m/s | 5 |
| 1984 ❄️ | 29.7°C | 16.1°C | 22.9°C | 233 mm | 86% | 1.6 m/s | 5.4 |
| 1983 | 30.4°C | 20.9°C | 25.7°C | 52 mm | 84% | 1.4 m/s | — |
| 1982 | 30.4°C | 21.5°C | 25.9°C | 122 mm | 85% | 0.9 m/s | — |
| 1981 | 28.8°C | 20.8°C | 24.8°C | 279 mm | 89% | 1.3 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 30°C with lows near 21.6°C (mean 25.8°C), based on 45 years of NASA POWER data.
October averages 296 mm of rainfall in Kollam, a relatively wet time of year. The wettest on record was 615 mm in 2006.
The hottest October reached 34.1°C in 1990. The coldest dipped to 16.1°C in 1984.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 1.6°C. Daytime highs moved from 29.8°C to 30.3°C and overnight lows from 19.9°C to 22.6°C over the same span.
October is one of the cooler months of the year in Kollam and a relatively wet time of year, so plan for around 30°C daytime highs and 21.6°C at night.
Not quite — October is the 7th coolest month in Kollam, averaging 25.8°C.
For October in Kollam, pack light, breathable clothing and sun protection, with typical highs of 30°C and lows of 21.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in October averages 88% — quite humid.
Average wind speed in October is 1.4 m/s. The windiest October on record averaged 1.8 m/s (1998).
The wettest October on record was 2006 with 615 mm. On average, October sees 296 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 October, 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 October specifically, along with year-by-year records and how the month has changed over the decades.
