July is one of the cooler months of the year in Kollam, with average highs near 28.6°C and lows around 21.9°C (mean 25.3°C). It is a relatively wet time of year, averaging 242 mm of rainfall and 90% relative humidity across the period.
July is one of the cooler months of the year in Kollam. Across 45 years of records, the warmest July in Kollam was 1983 — when the month averaged 26.8°C — while the coldest was 1985 at 24.1°C. Typical July days reach 28.6°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 | 24.9°C | 24.9°C | 25.2°C | 25.5°C | 25.9°C | +1°C |
| Avg High | 28.6°C | 28.0°C | 28.5°C | 29.0°C | 29.3°C | +0.7°C |
| Avg Low | 21.2°C | 21.9°C | 22.0°C | 22.0°C | 22.5°C | +1.3°C |
| Avg Rain | 207 mm | 289 mm | 265 mm | 205 mm | 240 mm | +33 mm |
July temperatures in Kollam have risen by about 1.1°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 20.6°C (1982) to a record high of 32.2°C (1983).
Rainfall in July is a relatively wet time of year, averaging 242 mm, with a wettest year of 463 mm.
A good time to visit Kollam
July is a good time to visit Kollam, with days averaging 28.6°C and nights around 21.9°C (mean 25.3°C, cooler than Kollam's yearly average) and higher rainfall. December and January are marginally more temperate, but July still suits most travellers.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 28.9°C | 22.8°C | 25.8°C | 253 mm | 92% | 2.5 m/s | 4.7 |
| 2024 | 29.0°C | 22.7°C | 25.8°C | 255 mm | 91% | 2.1 m/s | 4.2 |
| 2023 | 29.8°C | 21.8°C | 25.8°C | 215 mm | 89% | 2.1 m/s | 5.1 |
| 2022 | 30.5°C | 22.4°C | 26.5°C | 233 mm | 90% | 2.2 m/s | 4.9 |
| 2021 | 28.6°C | 22.6°C | 25.6°C | 244 mm | 91% | 2.3 m/s | 5.2 |
| 2020 | 28.7°C | 22.7°C | 25.7°C | 240 mm | 91% | 1.9 m/s | 4.9 |
| 2019 | 30.2°C | 22.4°C | 26.3°C | 187 mm | 87% | 2.1 m/s | 5 |
| 2018 | 28.3°C | 21.4°C | 24.8°C | 361 mm | 92% | 2.4 m/s | 4.9 |
| 2017 | 29.3°C | 22.2°C | 25.7°C | 107 mm | 89% | 2.1 m/s | 5.4 |
| 2016 | 28.7°C | 22.3°C | 25.5°C | 178 mm | 91% | 2.2 m/s | 5.2 |
| 2015 | 28.8°C | 21.9°C | 25.4°C | 100 mm | 90% | 2.1 m/s | 5.3 |
| 2014 | 29.0°C | 21.4°C | 25.2°C | 202 mm | 89% | 2.4 m/s | 5.3 |
| 2013 | 27.6°C | 21.5°C | 24.6°C | 324 mm | 92% | 2.3 m/s | 4.4 |
| 2012 | 28.9°C | 22.8°C | 25.9°C | 152 mm | 87% | 2.4 m/s | 5.5 |
| 2011 | 29.3°C | 22.2°C | 25.7°C | 158 mm | 88% | 2.2 m/s | 4.8 |
| 2010 | 30.0°C | 22.2°C | 26.1°C | 279 mm | 89% | 2.2 m/s | 4.6 |
| 2009 | 28.2°C | 21.7°C | 25.0°C | 307 mm | 91% | 2.2 m/s | 4.9 |
| 2008 | 29.2°C | 21.7°C | 25.4°C | 309 mm | 90% | 2.3 m/s | 4.8 |
| 2007 🌧️ | 27.8°C | 22.5°C | 25.1°C | 463 mm | 93% | 2.2 m/s | 4.6 |
| 2006 | 28.5°C | 22.2°C | 25.3°C | 256 mm | 92% | 2.4 m/s | 4.9 |
| 2005 | 27.7°C | 22.8°C | 25.2°C | 323 mm | 92% | 2.5 m/s | 4.9 |
| 2004 | 27.7°C | 22.0°C | 24.9°C | 278 mm | 91% | 2.4 m/s | 5 |
| 2003 | 28.2°C | 22.2°C | 25.2°C | 210 mm | 91% | 2.1 m/s | 4.7 |
| 2002 | 29.3°C | 22.1°C | 25.7°C | 99 mm | 87% | 2.6 m/s | 5.1 |
| 2001 | 28.2°C | 21.6°C | 24.9°C | 340 mm | 91% | 2.5 m/s | 4.8 |
| 2000 | 30.4°C | 21.1°C | 25.7°C | 64 mm | 85% | 2.5 m/s | 5.6 |
| 1999 | 27.9°C | 21.5°C | 24.7°C | 171 mm | 90% | 2.5 m/s | 5.1 |
| 1998 | 28.1°C | 22.2°C | 25.1°C | 141 mm | 90% | 2.5 m/s | 5.1 |
| 1997 | 28.0°C | 22.3°C | 25.2°C | 393 mm | 91% | 2.5 m/s | 4.2 |
| 1996 | 29.0°C | 22.0°C | 25.5°C | 352 mm | 91% | 2.6 m/s | 4 |
| 1995 | 28.5°C | 21.3°C | 24.9°C | 208 mm | 91% | 2.3 m/s | 4.4 |
| 1994 | 27.8°C | 21.7°C | 24.7°C | 351 mm | 90% | 2.4 m/s | 4 |
| 1993 | 27.3°C | 21.9°C | 24.6°C | 347 mm | 91% | 2.7 m/s | 4.2 |
| 1992 | 27.7°C | 21.9°C | 24.8°C | 251 mm | 91% | 2.4 m/s | 4.1 |
| 1991 | 27.6°C | 22.5°C | 25.0°C | 316 mm | 91% | 2.3 m/s | 4.2 |
| 1990 | 28.3°C | 21.8°C | 25.0°C | 363 mm | 89% | 2.3 m/s | 4.4 |
| 1989 | 28.0°C | 20.9°C | 24.5°C | 274 mm | 91% | 2.5 m/s | 4.5 |
| 1988 | 28.1°C | 22.0°C | 25.0°C | 299 mm | 91% | 2.3 m/s | 4.3 |
| 1987 | 30.5°C | 21.3°C | 25.9°C | 56 mm | 85% | 2.2 m/s | 5.4 |
| 1986 | 28.6°C | 21.3°C | 25.0°C | 81 mm | 87% | 2.4 m/s | 4.5 |
| 1985 ❄️ | 27.1°C | 21.1°C | 24.1°C | 164 mm | 91% | 2.1 m/s | 5.1 |
| 1984 | 27.4°C | 21.1°C | 24.2°C | 248 mm | 90% | 2.3 m/s | 5 |
| 1983 🔥 | 32.2°C | 21.4°C | 26.8°C | 160 mm | 82% | 2.3 m/s | — |
| 1982 | 28.0°C | 20.6°C | 24.3°C | 321 mm | 91% | 1.9 m/s | — |
| 1981 | 27.8°C | 21.2°C | 24.5°C | 255 mm | 91% | 2.4 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 28.6°C with lows near 21.9°C (mean 25.3°C), based on 45 years of NASA POWER data.
July averages 242 mm of rainfall in Kollam, a relatively wet time of year. The wettest on record was 463 mm in 2007.
The hottest July reached 32.2°C in 1983. The coldest dipped to 20.6°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 1.1°C. Daytime highs moved from 28.5°C to 29.4°C and overnight lows from 21.1°C to 22.5°C over the same span.
July is one of the cooler months of the year in Kollam and a relatively wet time of year, so plan for around 28.6°C daytime highs and 21.9°C at night.
Not quite — July is the 4th coolest month in Kollam, averaging 25.3°C.
For July in Kollam, pack light layers you can adjust through the day, with typical highs of 28.6°C and lows of 21.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 90% — quite humid.
Average wind speed in July is 2.3 m/s. The windiest July on record averaged 2.7 m/s (1993).
The wettest July on record was 2007 with 463 mm. On average, July sees 242 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 July, 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 July specifically, along with year-by-year records and how the month has changed over the decades.
