May is one of the warmer months of the year in Ramanathapuram, with average highs near 34°C and lows around 27.1°C (mean 30.6°C). It is about average for rainfall, averaging 84 mm of rainfall and 71% relative humidity across the period.
May is one of the warmer months of the year in Ramanathapuram. Across 45 years of records, the warmest May in Ramanathapuram was 2019 — when the month averaged 32.8°C — while the coldest was 2004 at 28.6°C. Typical May days reach 34°C with nights near 27.1°C. The long-term May temperature trend is broadly flat.
May is about average for rainfall in Ramanathapuram, averaging 84 mm of rainfall. The wettest May on record was 2004 with 289 mm, while the driest was 2019 at 7 mm.
Relative humidity in Ramanathapuram during May averages 71%. The most humid May was 2004 at 82%, and the least humid was 2019 at 63%.
May receives about 5.9 kWh/m²/day of solar energy in Ramanathapuram. The sunniest May was 2011 at 6.6 kWh/m²/day, and the cloudiest was 2024 at 5.2.
Average wind speed in Ramanathapuram during May is 4.1 m/s. The windiest Mays were 1990 and 2008 at 4.7 m/s, while the calmest were 2015, 2023 and 2024, among others at 3.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 30.4°C | 30.5°C | 30.2°C | 31.0°C | 30.8°C | +0.4°C |
| Avg High | 34.0°C | 34.1°C | 33.7°C | 34.4°C | 34.1°C | +0.1°C |
| Avg Low | 26.8°C | 27.0°C | 26.8°C | 27.5°C | 27.5°C | +0.7°C |
| Avg Rain | 76 mm | 85 mm | 103 mm | 71 mm | 82 mm | +6 mm |
May temperatures in Ramanathapuram have risen by about 0.5°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 24.4°C (1999) to a record high of 39.1°C (2024).
Rainfall in May is about average for rainfall, averaging 84 mm, with a wettest year of 289 mm.
A quieter season to visit Ramanathapuram
If your dates are flexible, the more temperate months of January and February tend to be the most comfortable for visiting Ramanathapuram. That said, May — with days averaging 34°C and nights around 27.1°C (mean 30.6°C) and higher rainfall (84 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 | 34.3°C | 31.1°C | 27.8°C | 36.5°C | 26.4°C | 79 mm | 70% | 4.2 m/s | 5.6 |
| 2024 | 34.1°C | 31.1°C | 28.2°C | 39.1°C | 26.2°C | 139 mm | 73% | 3.4 m/s | 5.2 |
| 2023 | 32.8°C | 29.9°C | 27.0°C | 36.0°C | 25.5°C | 120 mm | 76% | 3.4 m/s | 5.8 |
| 2022 | 34.6°C | 30.7°C | 26.9°C | 36.5°C | 25.2°C | 42 mm | 70% | 4.5 m/s | 5.8 |
| 2021 | 33.6°C | 30.3°C | 27.0°C | 37.1°C | 25.3°C | 56 mm | 72% | 4.1 m/s | 5.8 |
| 2020 | 35.0°C | 31.6°C | 28.2°C | 37.5°C | 27.3°C | 59 mm | 67% | 3.6 m/s | 5.7 |
| 2019 🔥 | 36.6°C | 32.8°C | 28.9°C | 38.6°C | 27.7°C | 7 mm | 63% | 4.5 m/s | 6.1 |
| 2018 | 33.1°C | 30.2°C | 27.3°C | 35.8°C | 26.4°C | 79 mm | 72% | 3.7 m/s | 5.5 |
| 2017 | 34.9°C | 31.4°C | 27.9°C | 37.8°C | 26.9°C | 36 mm | 67% | 4 m/s | 5.7 |
| 2016 | 34.9°C | 31.3°C | 27.7°C | 37.9°C | 24.8°C | 100 mm | 68% | 4 m/s | 5.8 |
| 2015 | 31.9°C | 29.2°C | 26.6°C | 34.6°C | 25.4°C | 168 mm | 79% | 3.4 m/s | 5.6 |
| 2014 | 33.0°C | 30.0°C | 27.0°C | 35.0°C | 26.1°C | 156 mm | 76% | 3.8 m/s | 5.7 |
| 2013 | 35.2°C | 31.5°C | 27.9°C | 38.7°C | 26.8°C | 32 mm | 65% | 4.3 m/s | 5.9 |
| 2012 | 33.9°C | 30.5°C | 27.0°C | 37.2°C | 26.2°C | 40 mm | 71% | 4.4 m/s | 6.1 |
| 2011 | 35.0°C | 31.0°C | 27.1°C | 37.2°C | 25.7°C | 43 mm | 66% | 4.3 m/s | 6.6 |
| 2010 | 35.2°C | 31.6°C | 27.9°C | 37.9°C | 26.8°C | 51 mm | 68% | 4.4 m/s | 6.1 |
| 2009 | 35.2°C | 31.4°C | 27.6°C | 38.0°C | 25.8°C | 24 mm | 65% | 4.1 m/s | 6.1 |
| 2008 | 33.8°C | 30.1°C | 26.5°C | 36.6°C | 25.8°C | 38 mm | 71% | 4.7 m/s | 6.5 |
| 2007 | 34.9°C | 31.1°C | 27.3°C | 38.3°C | 25.6°C | 34 mm | 67% | 4.3 m/s | 6.4 |
| 2006 | 33.3°C | 30.1°C | 26.9°C | 37.5°C | 25.3°C | 112 mm | 73% | 4.6 m/s | 6.1 |
| 2005 | 33.2°C | 29.9°C | 26.7°C | 36.3°C | 25.7°C | 84 mm | 76% | 3.6 m/s | 6.2 |
| 2004 ❄️ 🌧️ | 31.2°C | 28.6°C | 25.9°C | 33.2°C | 24.8°C | 289 mm | 82% | 4 m/s | 5.4 |
| 2003 | 33.9°C | 30.4°C | 26.8°C | 36.8°C | 25.8°C | 138 mm | 73% | 4 m/s | 5.8 |
| 2002 | 33.1°C | 29.9°C | 26.8°C | 37.1°C | 25.4°C | 134 mm | 75% | 4.3 m/s | 6.1 |
| 2001 | 32.8°C | 29.5°C | 26.3°C | 34.9°C | 24.8°C | 83 mm | 77% | 4.2 m/s | 6.5 |
| 2000 | 35.1°C | 31.3°C | 27.4°C | 38.1°C | 25.2°C | 93 mm | 63% | 3.9 m/s | 6.3 |
| 1999 | 31.6°C | 28.7°C | 25.7°C | 36.4°C | 24.4°C | 133 mm | 78% | 4.6 m/s | 6 |
| 1998 | 34.9°C | 31.4°C | 28.0°C | 37.5°C | 26.6°C | 108 mm | 70% | 3.8 m/s | 5.5 |
| 1997 | 33.8°C | 30.3°C | 26.8°C | 37.3°C | 25.0°C | 80 mm | 68% | 3.7 m/s | 5.6 |
| 1996 | 35.2°C | 31.1°C | 26.9°C | 36.8°C | 25.8°C | 11 mm | 68% | 4.5 m/s | 6.1 |
| 1995 | 33.7°C | 30.1°C | 26.4°C | 36.3°C | 24.9°C | 61 mm | 70% | 4.1 m/s | 5.6 |
| 1994 | 33.6°C | 30.2°C | 26.8°C | 36.1°C | 24.8°C | 156 mm | 72% | 4.4 m/s | 6.1 |
| 1993 | 34.5°C | 30.8°C | 27.2°C | 37.1°C | 26.1°C | 63 mm | 68% | 4.1 m/s | 6 |
| 1992 | 34.5°C | 30.7°C | 27.0°C | 37.5°C | 25.2°C | 77 mm | 68% | 4 m/s | 5.9 |
| 1991 | 35.1°C | 31.6°C | 28.1°C | 38.2°C | 27.0°C | 36 mm | 66% | 4.2 m/s | 5.9 |
| 1990 | 33.6°C | 30.2°C | 26.8°C | 36.5°C | 25.3°C | 130 mm | 71% | 4.7 m/s | 5.4 |
| 1989 | 34.8°C | 30.9°C | 27.0°C | 38.2°C | 25.5°C | 47 mm | 66% | 4.5 m/s | 5.8 |
| 1988 | 34.5°C | 30.8°C | 27.1°C | 36.8°C | 26.2°C | 40 mm | 69% | 4.3 m/s | 5.7 |
| 1987 | 34.3°C | 30.6°C | 27.0°C | 37.0°C | 26.1°C | 62 mm | 67% | 3.4 m/s | 5.9 |
| 1986 | 34.5°C | 30.6°C | 26.6°C | 38.0°C | 25.6°C | 46 mm | 68% | 4.6 m/s | 6.2 |
| 1985 | 34.3°C | 30.6°C | 26.9°C | 37.3°C | 25.6°C | 74 mm | 68% | 4.3 m/s | 5.9 |
| 1984 | 33.1°C | 29.6°C | 26.1°C | 36.0°C | 25.3°C | 41 mm | 75% | 3.9 m/s | 6.2 |
| 1983 | 34.9°C | 31.3°C | 27.7°C | 38.8°C | 26.0°C | 63 mm | 66% | 4.1 m/s | — |
| 1982 | 32.6°C | 29.5°C | 26.3°C | 35.4°C | 25.0°C | 156 mm | 75% | 3.6 m/s | — |
| 1981 | 32.7°C | 29.5°C | 26.4°C | 35.9°C | 25.5°C | 158 mm | 74% | 3.9 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 34°C with lows near 27.1°C (mean 30.6°C), based on 45 years of NASA POWER data.
May averages 84 mm of rainfall in Ramanathapuram, about average for rainfall. The wettest on record was 289 mm in 2004.
The hottest May reached 39.1°C in 2024. The coldest dipped to 24.4°C in 1999.
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 33.5°C to 33.9°C and overnight lows from 26.7°C to 27.4°C over the same span.
May is one of the warmer months of the year in Ramanathapuram and about average for rainfall, so plan for around 34°C daytime highs and 27.1°C at night.
Not quite — May is the 11th coolest month in Ramanathapuram, averaging 30.6°C.
For May in Ramanathapuram, pack light, breathable clothing and sun protection, with typical highs of 34°C and lows of 27.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 71% — moderately humid.
Average wind speed in May is 4.1 m/s. The windiest May on record averaged 4.7 m/s (1990).
The wettest May on record was 2004 with 289 mm. On average, May sees 84 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 Ramanathapuram 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.
