May is one of the warmer months of the year in Thiruvananthapuram, with average highs near 30°C and lows around 26.6°C (mean 28.3°C). It is a relatively wet time of year, averaging 209 mm of rainfall and 81% relative humidity across the period.
May is one of the warmer months of the year in Thiruvananthapuram. Across 45 years of records, the warmest May in Thiruvananthapuram was 1991 — when the month averaged 29.7°C — while the coldest was 1999 at 26.7°C. Typical May days reach 30°C with nights near 26.6°C. The long-term May temperature trend is broadly flat.
May is a relatively wet time of year in Thiruvananthapuram, averaging 209 mm of rainfall. The wettest May on record was 2021 with 627 mm, while the driest was 1996 at 24 mm.
Relative humidity in Thiruvananthapuram during May averages 81%. The most humid May was 2004 at 87%, and the least humid was 1991 at 73%.
May receives about 5.1 kWh/m²/day of solar energy in Thiruvananthapuram. The sunniest May was 2019 at 5.9 kWh/m²/day, and the cloudiest was 2024 at 4.
Average wind speed in Thiruvananthapuram during May is 3.7 m/s. The windiest Mays were 1990, 2004 and 2013, among others at 4.3 m/s, while the calmest were 1982 and 1987 at 2.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 28.1°C | 28.3°C | 28.1°C | 28.6°C | 28.6°C | +0.5°C |
| Avg High | 29.8°C | 30.2°C | 29.7°C | 30.2°C | 30.1°C | +0.3°C |
| Avg Low | 26.3°C | 26.5°C | 26.6°C | 26.9°C | 27.0°C | +0.7°C |
| Avg Rain | 179 mm | 192 mm | 206 mm | 169 mm | 352 mm | +173 mm |
May temperatures in Thiruvananthapuram have risen by about 0.5°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 23.9°C (1995) to a record high of 35.5°C (1998).
Rainfall in May is a relatively wet time of year, averaging 209 mm, with a wettest year of 627 mm.
A quieter season to visit Thiruvananthapuram
If your dates are flexible, the more temperate months of January and December tend to be the most comfortable for visiting Thiruvananthapuram. That said, May — with days averaging 30°C and nights around 26.6°C (mean 28.3°C) and higher rainfall (209 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 | 28.9°C | 27.5°C | 32.3°C | 26.5°C | 326 mm | 82% | 4.1 m/s | 4.8 |
| 2024 | 30.8°C | 29.2°C | 27.6°C | 34.3°C | 26.3°C | 444 mm | 81% | 3.6 m/s | 4 |
| 2023 | 30.8°C | 29.0°C | 27.1°C | 32.5°C | 25.9°C | 152 mm | 79% | 3 m/s | 5.7 |
| 2022 | 28.9°C | 27.6°C | 26.2°C | 30.9°C | 25.1°C | 241 mm | 86% | 3.9 m/s | 4.7 |
| 2021 🌧️ | 29.4°C | 27.9°C | 26.5°C | 32.1°C | 25.2°C | 627 mm | 84% | 3.2 m/s | 4.8 |
| 2020 | 30.2°C | 28.8°C | 27.3°C | 33.3°C | 26.0°C | 321 mm | 83% | 3.2 m/s | 5.1 |
| 2019 | 31.2°C | 29.3°C | 27.4°C | 32.8°C | 26.5°C | 87 mm | 78% | 3.7 m/s | 5.9 |
| 2018 | 29.7°C | 28.2°C | 26.7°C | 33.2°C | 25.9°C | 193 mm | 82% | 3.5 m/s | 4.6 |
| 2017 | 30.7°C | 28.8°C | 27.0°C | 33.4°C | 25.6°C | 178 mm | 79% | 3.7 m/s | 5.2 |
| 2016 | 30.6°C | 28.9°C | 27.2°C | 34.0°C | 25.6°C | 288 mm | 81% | 3.5 m/s | 4.8 |
| 2015 | 29.4°C | 28.1°C | 26.7°C | 31.2°C | 25.6°C | 305 mm | 84% | 3.1 m/s | 4.6 |
| 2014 | 29.8°C | 28.4°C | 26.9°C | 32.0°C | 25.9°C | 223 mm | 83% | 3.4 m/s | 5.4 |
| 2013 | 30.0°C | 28.5°C | 27.0°C | 31.3°C | 25.8°C | 110 mm | 80% | 4.3 m/s | 5 |
| 2012 | 29.7°C | 28.1°C | 26.4°C | 31.4°C | 25.3°C | 78 mm | 81% | 4.1 m/s | 5.7 |
| 2011 | 30.2°C | 28.3°C | 26.4°C | 32.2°C | 24.4°C | 56 mm | 78% | 4 m/s | 5.5 |
| 2010 | 30.4°C | 28.9°C | 27.4°C | 32.4°C | 26.1°C | 170 mm | 82% | 3.7 m/s | 4.8 |
| 2009 | 30.0°C | 28.4°C | 26.7°C | 32.6°C | 25.3°C | 203 mm | 81% | 4 m/s | 5.3 |
| 2008 | 28.8°C | 27.5°C | 26.2°C | 29.8°C | 25.4°C | 118 mm | 84% | 3.8 m/s | 5.7 |
| 2007 | 30.1°C | 28.4°C | 26.7°C | 32.2°C | 25.4°C | 188 mm | 81% | 3.8 m/s | 5.6 |
| 2006 | 29.6°C | 28.0°C | 26.5°C | 31.7°C | 25.1°C | 259 mm | 82% | 3.7 m/s | 4.9 |
| 2005 | 30.5°C | 28.7°C | 26.9°C | 32.1°C | 26.0°C | 188 mm | 80% | 3.3 m/s | 5.5 |
| 2004 | 28.5°C | 27.3°C | 26.1°C | 31.7°C | 24.9°C | 525 mm | 87% | 4.3 m/s | 4.9 |
| 2003 | 30.5°C | 28.8°C | 27.1°C | 31.7°C | 25.7°C | 87 mm | 79% | 4.1 m/s | 5.6 |
| 2002 | 29.8°C | 28.3°C | 26.7°C | 34.5°C | 25.9°C | 272 mm | 83% | 4.1 m/s | 5.1 |
| 2001 | 28.9°C | 27.7°C | 26.4°C | 30.2°C | 25.0°C | 193 mm | 85% | 3.8 m/s | 5.3 |
| 2000 | 30.3°C | 28.3°C | 26.4°C | 32.3°C | 25.2°C | 27 mm | 79% | 4.2 m/s | 5.8 |
| 1999 ❄️ | 28.0°C | 26.7°C | 25.4°C | 31.3°C | 24.8°C | 345 mm | 86% | 4.1 m/s | 4.8 |
| 1998 | 30.8°C | 29.1°C | 27.3°C | 35.5°C | 26.2°C | 293 mm | 80% | 3.2 m/s | 5.1 |
| 1997 | 30.3°C | 28.5°C | 26.6°C | 33.9°C | 25.7°C | 115 mm | 77% | 3.5 m/s | 5 |
| 1996 | 30.8°C | 28.6°C | 26.5°C | 31.9°C | 25.1°C | 24 mm | 77% | 3.9 m/s | 5.5 |
| 1995 | 28.8°C | 27.3°C | 25.9°C | 32.1°C | 23.9°C | 371 mm | 85% | 3.8 m/s | 4.8 |
| 1994 | 30.4°C | 28.5°C | 26.6°C | 33.2°C | 25.6°C | 182 mm | 78% | 4.1 m/s | 4.7 |
| 1993 | 30.4°C | 28.4°C | 26.5°C | 32.9°C | 25.2°C | 142 mm | 79% | 3.6 m/s | 4.8 |
| 1992 | 30.4°C | 28.3°C | 26.3°C | 33.0°C | 25.4°C | 145 mm | 79% | 3.5 m/s | 4.9 |
| 1991 🔥 | 31.9°C | 29.7°C | 27.4°C | 35.0°C | 25.9°C | 36 mm | 73% | 3.2 m/s | 4.9 |
| 1990 | 29.7°C | 28.1°C | 26.4°C | 32.5°C | 25.1°C | 269 mm | 81% | 4.3 m/s | 4.3 |
| 1989 | 29.7°C | 27.9°C | 26.2°C | 32.7°C | 24.8°C | 136 mm | 79% | 4.3 m/s | 4.6 |
| 1988 | 30.2°C | 28.6°C | 26.9°C | 32.0°C | 25.8°C | 41 mm | 79% | 4.2 m/s | 4.7 |
| 1987 | 31.1°C | 28.9°C | 26.7°C | 34.5°C | 25.6°C | 186 mm | 76% | 2.7 m/s | 5.5 |
| 1986 | 29.2°C | 27.5°C | 25.9°C | 31.1°C | 24.7°C | 172 mm | 82% | 3.7 m/s | 5.2 |
| 1985 | 30.0°C | 28.2°C | 26.3°C | 34.4°C | 25.2°C | 226 mm | 79% | 4 m/s | 4.7 |
| 1984 | 29.0°C | 27.5°C | 25.9°C | 30.8°C | 25.0°C | 139 mm | 84% | 3.6 m/s | 5.2 |
| 1983 | 30.7°C | 28.8°C | 26.9°C | 32.8°C | 25.9°C | 78 mm | 77% | 3.5 m/s | — |
| 1982 | 29.2°C | 27.6°C | 26.0°C | 30.5°C | 25.1°C | 317 mm | 82% | 2.7 m/s | — |
| 1981 | 29.4°C | 27.9°C | 26.3°C | 31.3°C | 24.9°C | 314 mm | 82% | 3.4 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 30°C with lows near 26.6°C (mean 28.3°C), based on 45 years of NASA POWER data.
May averages 209 mm of rainfall in Thiruvananthapuram, a relatively wet time of year. The wettest on record was 627 mm in 2021.
The hottest May reached 35.5°C in 1998. The coldest dipped to 23.9°C in 1995.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 0.5°C. Daytime highs moved from 29.7°C to 30.1°C and overnight lows from 26.3°C to 27°C over the same span.
May is one of the warmer months of the year in Thiruvananthapuram and a relatively wet time of year, so plan for around 30°C daytime highs and 26.6°C at night.
Not quite — May is the 10th coolest month in Thiruvananthapuram, averaging 28.3°C.
For May in Thiruvananthapuram, pack light, breathable clothing and sun protection, with typical highs of 30°C and lows of 26.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 81% — quite humid.
Average wind speed in May is 3.7 m/s. The windiest May on record averaged 4.3 m/s (1989).
The wettest May on record was 2021 with 627 mm. On average, May sees 209 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 Thiruvananthapuram 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.
