April is one of the warmer months of the year in Kollam, with average highs near 33°C and lows around 24.9°C (mean 29°C). It is one of the drier months, averaging 126 mm of rainfall and 74% relative humidity across the period.
April is one of the warmer months of the year in Kollam. Across 45 years of records, the warmest April in Kollam was 1998 — when the month averaged 31.2°C — while the coldest was 2008 at 26.6°C. Typical April days reach 33°C with nights near 24.9°C. The long-term April temperature trend is broadly flat.
April is one of the drier months in Kollam, averaging 126 mm of rainfall. The wettest April on record was 2005 with 323 mm, while the driest was 1991 at 2 mm.
Relative humidity in Kollam during April averages 74%. The most humid April was 2008 at 86%, and the least humid was 1983 at 64%.
April receives about 5.9 kWh/m²/day of solar energy in Kollam. The sunniest April was 2020 at 6.5 kWh/m²/day, and the cloudiest was 1984 at 4.8.
Average wind speed in Kollam during April is 1.4 m/s. The windiest April was 1999 at 2.2 m/s, while the calmest were 2005, 2015 and 2022, among others at 1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 28.8°C | 29.4°C | 28.4°C | 29.1°C | 29.0°C | +0.2°C |
| Avg High | 32.8°C | 33.9°C | 32.2°C | 33.1°C | 33.0°C | +0.2°C |
| Avg Low | 24.7°C | 25.0°C | 24.6°C | 25.2°C | 25.0°C | +0.3°C |
| Avg Rain | 156 mm | 75 mm | 144 mm | 116 mm | 154 mm | -2 mm |
April temperatures in Kollam have stayed relatively stable across the record.
April has ranged from a record low of 21.5°C (1994) to a record high of 39°C (2019).
Rainfall in April is one of the drier months, averaging 126 mm, with a wettest year of 323 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.1°C per decade while lows rose 0.1°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 January and December tend to be the most comfortable for visiting Kollam. That said, April — with days averaging 33°C and nights around 24.9°C (mean 29°C) and higher rainfall (126 mm) — can still be rewarding for travellers who don't mind the warmth, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 30.4°C | 27.6°C | 24.9°C | 33.6°C | 23.7°C | 251 mm | 85% | 1.2 m/s | 5.9 |
| 2024 | 35.9°C | 31.1°C | 26.2°C | 38.7°C | 24.5°C | 63 mm | 69% | 1.2 m/s | 6.3 |
| 2023 | 34.2°C | 29.5°C | 24.8°C | 37.6°C | 23.3°C | 103 mm | 70% | 1.1 m/s | 6.4 |
| 2022 | 31.0°C | 27.7°C | 24.4°C | 34.0°C | 22.7°C | 257 mm | 82% | 1 m/s | 5.8 |
| 2021 | 31.7°C | 28.2°C | 24.6°C | 36.2°C | 23.3°C | 163 mm | 79% | 1.2 m/s | 6 |
| 2020 | 34.8°C | 30.0°C | 25.3°C | 38.2°C | 23.1°C | 87 mm | 69% | 1.1 m/s | 6.5 |
| 2019 | 35.1°C | 30.5°C | 25.9°C | 39.0°C | 24.5°C | 98 mm | 69% | 1.3 m/s | 6.3 |
| 2018 | 32.9°C | 29.0°C | 25.1°C | 36.7°C | 23.9°C | 89 mm | 75% | 1.1 m/s | 6.1 |
| 2017 | 33.0°C | 29.1°C | 25.1°C | 36.7°C | 24.1°C | 74 mm | 76% | 1.7 m/s | 6.4 |
| 2016 | 34.1°C | 29.9°C | 25.7°C | 36.8°C | 23.6°C | 76 mm | 74% | 1.4 m/s | 6.2 |
| 2015 | 31.9°C | 28.2°C | 24.5°C | 34.9°C | 22.9°C | 227 mm | 77% | 1 m/s | 6.1 |
| 2014 | 32.9°C | 29.2°C | 25.4°C | 37.9°C | 24.4°C | 136 mm | 74% | 1.3 m/s | 5.9 |
| 2013 | 33.7°C | 29.5°C | 25.2°C | 37.2°C | 23.0°C | 52 mm | 71% | 1.7 m/s | 6.3 |
| 2012 | 32.1°C | 28.4°C | 24.7°C | 36.2°C | 22.8°C | 163 mm | 77% | 1.4 m/s | 5.6 |
| 2011 | 32.3°C | 28.4°C | 24.5°C | 36.6°C | 23.1°C | 119 mm | 75% | 1.3 m/s | 6 |
| 2010 | 32.7°C | 29.0°C | 25.4°C | 36.2°C | 23.8°C | 128 mm | 76% | 1.3 m/s | 6 |
| 2009 | 33.6°C | 29.2°C | 24.9°C | 37.4°C | 23.1°C | 71 mm | 73% | 1.5 m/s | 5.7 |
| 2008 ❄️ | 29.5°C | 26.6°C | 23.8°C | 31.0°C | 22.1°C | 171 mm | 86% | 1.2 m/s | 5.8 |
| 2007 | 32.8°C | 28.8°C | 24.7°C | 38.7°C | 22.8°C | 190 mm | 75% | 1.1 m/s | 6.4 |
| 2006 | 33.2°C | 29.0°C | 24.8°C | 36.5°C | 23.8°C | 68 mm | 73% | 1.6 m/s | 6.1 |
| 2005 🌧️ | 29.7°C | 27.0°C | 24.3°C | 36.2°C | 22.7°C | 323 mm | 86% | 1 m/s | 5.9 |
| 2004 | 32.7°C | 28.8°C | 24.9°C | 36.5°C | 22.5°C | 103 mm | 75% | 1.3 m/s | 6 |
| 2003 | 32.8°C | 28.8°C | 24.8°C | 35.6°C | 23.2°C | 82 mm | 75% | 1.1 m/s | 5.9 |
| 2002 | 34.4°C | 29.7°C | 24.9°C | 37.3°C | 23.6°C | 82 mm | 70% | 1.1 m/s | 6.4 |
| 2001 | 31.5°C | 27.9°C | 24.4°C | 38.1°C | 22.7°C | 264 mm | 79% | 1 m/s | 5.5 |
| 2000 | 31.5°C | 28.0°C | 24.5°C | 34.1°C | 23.1°C | 89 mm | 78% | 1.7 m/s | 5.9 |
| 1999 | 31.5°C | 28.1°C | 24.7°C | 36.9°C | 23.0°C | 117 mm | 76% | 2.2 m/s | 5.3 |
| 1998 🔥 | 36.2°C | 31.2°C | 26.1°C | 38.5°C | 24.4°C | 47 mm | 66% | 1.4 m/s | 6.1 |
| 1997 | 33.7°C | 29.1°C | 24.5°C | 36.0°C | 23.1°C | 86 mm | 69% | 1.2 m/s | 5.8 |
| 1996 | 31.7°C | 28.1°C | 24.5°C | 35.6°C | 23.5°C | 158 mm | 77% | 1.3 m/s | 5.4 |
| 1995 | 33.2°C | 28.9°C | 24.6°C | 37.1°C | 23.4°C | 92 mm | 72% | 1.1 m/s | 5.6 |
| 1994 | 32.2°C | 28.2°C | 24.2°C | 35.7°C | 21.5°C | 114 mm | 76% | 1.4 m/s | 5.6 |
| 1993 | 35.4°C | 30.2°C | 25.0°C | 38.7°C | 23.3°C | 68 mm | 67% | 1.4 m/s | 5.7 |
| 1992 | 35.5°C | 30.4°C | 25.3°C | 38.5°C | 24.1°C | 37 mm | 65% | 1.6 m/s | 5.8 |
| 1991 | 34.3°C | 30.0°C | 25.7°C | 38.4°C | 24.7°C | 2 mm | 67% | 1.7 m/s | 5.5 |
| 1990 | 35.0°C | 30.2°C | 25.4°C | 38.7°C | 24.5°C | 24 mm | 67% | 1.8 m/s | 5.3 |
| 1989 | 33.8°C | 29.4°C | 25.0°C | 38.2°C | 23.3°C | 91 mm | 70% | 1.7 m/s | 5.7 |
| 1988 | 31.9°C | 28.2°C | 24.5°C | 37.4°C | 23.1°C | 198 mm | 77% | 1.1 m/s | 5.2 |
| 1987 | 34.3°C | 29.7°C | 25.1°C | 38.2°C | 23.8°C | 95 mm | 68% | 1.4 m/s | 5.4 |
| 1986 | 32.6°C | 28.6°C | 24.7°C | 35.9°C | 24.0°C | 144 mm | 75% | 1.3 m/s | 6.1 |
| 1985 | 32.0°C | 28.4°C | 24.7°C | 35.4°C | 23.5°C | 77 mm | 75% | 1.6 m/s | 5.9 |
| 1984 | 29.8°C | 26.7°C | 23.6°C | 32.9°C | 22.4°C | 273 mm | 83% | 1.3 m/s | 4.8 |
| 1983 | 36.2°C | 30.9°C | 25.6°C | 38.8°C | 24.0°C | 69 mm | 64% | 1.8 m/s | — |
| 1982 | 32.1°C | 28.4°C | 24.6°C | 36.8°C | 23.4°C | 301 mm | 77% | 1.4 m/s | — |
| 1981 | 32.9°C | 28.8°C | 24.6°C | 36.9°C | 23.4°C | 160 mm | 75% | 1.4 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 33°C with lows near 24.9°C (mean 29°C), based on 45 years of NASA POWER data.
April averages 126 mm of rainfall in Kollam, one of the drier months. The wettest on record was 323 mm in 2005.
The hottest April reached 39°C in 2019. The coldest dipped to 21.5°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 0.2°C. Daytime highs moved from 32.6°C to 32.6°C and overnight lows from 24.6°C to 25°C over the same span.
April is one of the warmer months of the year in Kollam and one of the drier months, so plan for around 33°C daytime highs and 24.9°C at night.
Not quite — April is the 11th coolest month in Kollam, averaging 29°C.
For April in Kollam, pack light, breathable clothing and sun protection, with typical highs of 33°C and lows of 24.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in April averages 74% — moderately humid.
Average wind speed in April is 1.4 m/s. The windiest April on record averaged 2.2 m/s (1999).
The wettest April on record was 2005 with 323 mm. On average, April sees 126 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 April, 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 April specifically, along with year-by-year records and how the month has changed over the decades.
