May is one of the warmer months of the year in Alappuzha, with average highs near 29.9°C and lows around 27.8°C (mean 28.9°C). It is a relatively wet time of year, averaging 274 mm of rainfall and 80% relative humidity across the period.
May is one of the warmer months of the year in Alappuzha. Across 45 years of records, the warmest May in Alappuzha was 2025 — when the month averaged 29.9°C — while the coldest was 1999 at 27.4°C. Typical May days reach 29.9°C with nights near 27.8°C. The long-term May temperature trend is broadly flat.
May is a relatively wet time of year in Alappuzha, averaging 274 mm of rainfall. The wettest May on record was 2004 with 954 mm, while the driest was 1996 at 21 mm.
Relative humidity in Alappuzha during May averages 80%. The most humid May was 2004 at 85%, and the least humid were 1987 and 1991 at 75%.
May receives about 5.2 kWh/m²/day of solar energy in Alappuzha. The sunniest Mays were 1987 and 2000 at 5.8 kWh/m²/day, and the cloudiest were 2004 and 2024 at 4.3.
Average wind speed in Alappuzha during May is 4.1 m/s. The windiest May was 2025 at 4.9 m/s, while the calmest was 2023 at 3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 28.7°C | 28.8°C | 28.6°C | 29.0°C | 29.3°C | +0.6°C |
| Avg High | 29.8°C | 29.8°C | 29.6°C | 30.0°C | 30.2°C | +0.4°C |
| Avg Low | 27.6°C | 27.7°C | 27.7°C | 28.1°C | 28.3°C | +0.7°C |
| Avg Rain | 181 mm | 221 mm | 352 mm | 232 mm | 445 mm | +263 mm |
May temperatures in Alappuzha have risen by about 0.6°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 25.4°C (2004) to a record high of 33.1°C (1998).
Rainfall in May is a relatively wet time of year, averaging 274 mm, with a wettest year of 954 mm.
A quieter season to visit Alappuzha
If your dates are flexible, the more temperate months of January and December tend to be the most comfortable for visiting Alappuzha. That said, May — with days averaging 29.9°C and nights around 27.8°C (mean 28.9°C) and higher rainfall (274 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 🔥 | 30.9°C | 29.9°C | 29.0°C | 32.4°C | 28.0°C | 443 mm | 79% | 4.9 m/s | 4.8 |
| 2024 | 30.6°C | 29.6°C | 28.7°C | 33.1°C | 27.4°C | 605 mm | 79% | 4.1 m/s | 4.3 |
| 2023 | 30.5°C | 29.4°C | 28.3°C | 32.0°C | 26.2°C | 138 mm | 77% | 3 m/s | 5.7 |
| 2022 | 29.2°C | 28.4°C | 27.5°C | 30.9°C | 26.6°C | 413 mm | 83% | 4.1 m/s | 4.5 |
| 2021 | 29.7°C | 28.7°C | 27.7°C | 31.6°C | 26.6°C | 732 mm | 81% | 3.6 m/s | 4.8 |
| 2020 | 30.4°C | 29.5°C | 28.7°C | 32.4°C | 27.4°C | 335 mm | 80% | 3.7 m/s | 5.1 |
| 2019 | 30.8°C | 29.7°C | 28.6°C | 31.7°C | 28.1°C | 80 mm | 77% | 4.1 m/s | 5.7 |
| 2018 | 29.6°C | 28.7°C | 27.7°C | 32.1°C | 26.7°C | 293 mm | 81% | 4.1 m/s | 5 |
| 2017 | 30.2°C | 29.2°C | 28.2°C | 32.1°C | 26.6°C | 325 mm | 80% | 3.9 m/s | 5.2 |
| 2016 | 30.6°C | 29.5°C | 28.5°C | 32.2°C | 27.0°C | 292 mm | 79% | 3.9 m/s | 5 |
| 2015 | 29.8°C | 28.8°C | 27.9°C | 30.8°C | 26.5°C | 241 mm | 81% | 3.1 m/s | 4.9 |
| 2014 | 30.0°C | 29.1°C | 28.2°C | 30.8°C | 27.4°C | 260 mm | 81% | 3.5 m/s | 5.4 |
| 2013 | 29.9°C | 28.9°C | 27.9°C | 31.1°C | 26.4°C | 231 mm | 79% | 4.6 m/s | 5.1 |
| 2012 | 29.2°C | 28.3°C | 27.5°C | 29.8°C | 26.7°C | 137 mm | 82% | 4.2 m/s | 5.2 |
| 2011 | 29.9°C | 28.8°C | 27.7°C | 31.1°C | 26.8°C | 215 mm | 79% | 4.2 m/s | 5.6 |
| 2010 | 30.3°C | 29.4°C | 28.5°C | 31.4°C | 27.6°C | 245 mm | 80% | 4.1 m/s | 4.9 |
| 2009 | 29.4°C | 28.5°C | 27.6°C | 31.0°C | 25.5°C | 366 mm | 82% | 4 m/s | 5.1 |
| 2008 | 29.1°C | 28.2°C | 27.3°C | 29.9°C | 26.7°C | 179 mm | 82% | 3.8 m/s | 5.7 |
| 2007 | 29.8°C | 28.8°C | 27.8°C | 31.2°C | 26.7°C | 219 mm | 80% | 3.9 m/s | 5.5 |
| 2006 | 29.6°C | 28.6°C | 27.6°C | 32.1°C | 26.7°C | 598 mm | 80% | 4.2 m/s | 4.9 |
| 2005 | 30.1°C | 29.1°C | 28.0°C | 31.2°C | 26.8°C | 203 mm | 79% | 3.7 m/s | 5.5 |
| 2004 🌧️ | 28.8°C | 28.0°C | 27.2°C | 31.2°C | 25.4°C | 954 mm | 85% | 4.7 m/s | 4.3 |
| 2003 | 30.1°C | 29.1°C | 28.1°C | 31.0°C | 27.2°C | 242 mm | 81% | 4.2 m/s | 5.3 |
| 2002 | 29.9°C | 28.9°C | 27.9°C | 32.8°C | 27.0°C | 354 mm | 81% | 4.5 m/s | 5.1 |
| 2001 | 29.6°C | 28.7°C | 27.8°C | 30.5°C | 26.5°C | 280 mm | 81% | 4 m/s | 5.2 |
| 2000 | 29.5°C | 28.4°C | 27.4°C | 30.9°C | 25.7°C | 127 mm | 80% | 4.3 m/s | 5.8 |
| 1999 ❄️ | 28.2°C | 27.4°C | 26.6°C | 30.8°C | 25.8°C | 374 mm | 84% | 4.6 m/s | 4.5 |
| 1998 | 31.0°C | 29.8°C | 28.7°C | 33.1°C | 27.6°C | 258 mm | 78% | 3.8 m/s | 5.1 |
| 1997 | 30.0°C | 28.9°C | 27.7°C | 31.5°C | 26.8°C | 77 mm | 77% | 3.8 m/s | 5.2 |
| 1996 | 30.1°C | 28.9°C | 27.6°C | 31.2°C | 26.9°C | 21 mm | 77% | 4.1 m/s | 5.6 |
| 1995 | 29.2°C | 28.3°C | 27.4°C | 30.2°C | 25.8°C | 459 mm | 81% | 4.2 m/s | 5 |
| 1994 | 29.7°C | 28.7°C | 27.6°C | 31.4°C | 26.1°C | 207 mm | 79% | 4.5 m/s | 5.1 |
| 1993 | 29.7°C | 28.7°C | 27.6°C | 31.3°C | 26.6°C | 193 mm | 80% | 3.8 m/s | 5.1 |
| 1992 | 29.6°C | 28.6°C | 27.5°C | 32.1°C | 26.5°C | 212 mm | 79% | 3.9 m/s | 5.4 |
| 1991 | 30.9°C | 29.8°C | 28.6°C | 32.5°C | 27.8°C | 46 mm | 75% | 3.7 m/s | 5.6 |
| 1990 | 29.7°C | 28.7°C | 27.6°C | 30.9°C | 26.2°C | 360 mm | 79% | 4.8 m/s | 4.5 |
| 1989 | 29.7°C | 28.6°C | 27.5°C | 31.8°C | 26.4°C | 275 mm | 79% | 4.8 m/s | 4.8 |
| 1988 | 29.8°C | 28.8°C | 27.8°C | 30.6°C | 27.0°C | 95 mm | 80% | 4.5 m/s | 5 |
| 1987 | 30.6°C | 29.4°C | 28.1°C | 32.1°C | 27.5°C | 139 mm | 75% | 3.4 m/s | 5.8 |
| 1986 | 29.3°C | 28.3°C | 27.2°C | 30.7°C | 26.0°C | 151 mm | 80% | 4.1 m/s | 5.5 |
| 1985 | 29.7°C | 28.5°C | 27.3°C | 31.9°C | 26.0°C | 392 mm | 78% | 4.6 m/s | 5 |
| 1984 | 29.7°C | 28.6°C | 27.4°C | 31.0°C | 26.0°C | 123 mm | 80% | 4.2 m/s | 5.6 |
| 1983 | 30.3°C | 29.2°C | 28.0°C | 31.6°C | 26.9°C | 26 mm | 76% | 3.9 m/s | — |
| 1982 | 29.1°C | 28.1°C | 27.2°C | 30.3°C | 26.0°C | 273 mm | 81% | 3.2 m/s | — |
| 1981 | 29.7°C | 28.7°C | 27.7°C | 31.1°C | 26.2°C | 158 mm | 78% | 4 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 29.9°C with lows near 27.8°C (mean 28.9°C), based on 45 years of NASA POWER data.
May averages 274 mm of rainfall in Alappuzha, a relatively wet time of year. The wettest on record was 954 mm in 2004.
The hottest May reached 33.1°C in 1998. The coldest dipped to 25.4°C in 2004.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 0.6°C. Daytime highs moved from 29.7°C to 30.2°C and overnight lows from 27.5°C to 28.2°C over the same span.
May is one of the warmer months of the year in Alappuzha and a relatively wet time of year, so plan for around 29.9°C daytime highs and 27.8°C at night.
Not quite — May is the 10th coolest month in Alappuzha, averaging 28.9°C.
For May in Alappuzha, pack light layers you can adjust through the day, with typical highs of 29.9°C and lows of 27.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 80% — quite humid.
Average wind speed in May is 4.1 m/s. The windiest May on record averaged 4.9 m/s (2025).
The wettest May on record was 2004 with 954 mm. On average, May sees 274 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 Alappuzha behaves each May, 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 May specifically, along with year-by-year records and how the month has changed over the decades.
