April is one of the warmer months of the year in Tirunelveli, with average highs near 34.4°C and lows around 24.4°C (mean 29.4°C). It is one of the drier months, averaging 96 mm of rainfall and 70% relative humidity across the period.
April is one of the warmer months of the year in Tirunelveli. Across 45 years of records, the warmest April in Tirunelveli was 2024 — when the month averaged 31.6°C — while the coldest was 2008 at 26.3°C. Typical April days reach 34.4°C with nights near 24.4°C. The long-term trend is warming, about 0.2°C per decade.
April is one of the drier months in Tirunelveli, averaging 96 mm of rainfall. The wettest April on record was 1984 with 296 mm, while the driest was 1991 at 7 mm.
Relative humidity in Tirunelveli during April averages 70%. The most humid April was 2008 at 86%, and the least humid was 1983 at 59%.
April receives about 5.8 kWh/m²/day of solar energy in Tirunelveli. The sunniest April was 2017 at 6.3 kWh/m²/day, and the cloudiest were 1984, 1996 and 2001 at 5.2.
Average wind speed in Tirunelveli during April is 2 m/s. The windiest April was 1999 at 3.6 m/s, while the calmest was 2015 at 1.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 29.0°C | 29.8°C | 28.5°C | 29.9°C | 29.8°C | +0.8°C |
| Avg High | 34.0°C | 35.2°C | 33.1°C | 35.1°C | 34.8°C | +0.8°C |
| Avg Low | 24.0°C | 24.4°C | 24.0°C | 24.8°C | 24.8°C | +0.8°C |
| Avg Rain | 154 mm | 65 mm | 123 mm | 64 mm | 65 mm | -89 mm |
April temperatures in Tirunelveli have risen by about 0.9°C between 1981–1985 and 2021–2025.
April has ranged from a record low of 21.4°C (1984) to a record high of 40.4°C (1992).
Rainfall in April is one of the drier months, averaging 96 mm, with a wettest year of 296 mm.
A quieter season to visit Tirunelveli
If your dates are flexible, the more temperate months of January and December tend to be the most comfortable for visiting Tirunelveli. That said, April — with days averaging 34.4°C and nights around 24.4°C (mean 29.4°C) and higher rainfall (96 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 | 32.9°C | 28.7°C | 24.5°C | 35.5°C | 23.1°C | 89 mm | 76% | 1.8 m/s | 5.5 |
| 2024 🔥 | 37.3°C | 31.6°C | 25.9°C | 40.2°C | 24.2°C | 29 mm | 64% | 2.1 m/s | 6 |
| 2023 | 35.8°C | 30.4°C | 25.0°C | 39.5°C | 24.0°C | 55 mm | 64% | 1.9 m/s | 6 |
| 2022 | 33.0°C | 28.6°C | 24.1°C | 37.4°C | 22.6°C | 126 mm | 75% | 1.4 m/s | 5.5 |
| 2021 | 33.9°C | 29.0°C | 24.1°C | 38.5°C | 22.3°C | 50 mm | 72% | 1.8 m/s | 5.9 |
| 2020 | 36.0°C | 30.5°C | 24.9°C | 38.5°C | 22.2°C | 42 mm | 64% | 1.8 m/s | 6.1 |
| 2019 | 37.4°C | 31.5°C | 25.6°C | 39.8°C | 24.3°C | 33 mm | 62% | 1.9 m/s | 6.1 |
| 2018 | 34.2°C | 29.4°C | 24.6°C | 38.3°C | 23.3°C | 80 mm | 71% | 1.6 m/s | 5.8 |
| 2017 | 37.0°C | 31.1°C | 25.1°C | 39.2°C | 22.8°C | 16 mm | 63% | 2.8 m/s | 6.3 |
| 2016 | 37.3°C | 31.5°C | 25.8°C | 39.2°C | 23.4°C | 20 mm | 63% | 2.1 m/s | 6.1 |
| 2015 | 32.7°C | 28.3°C | 23.9°C | 37.2°C | 22.4°C | 158 mm | 74% | 1.3 m/s | 5.7 |
| 2014 | 34.7°C | 29.7°C | 24.7°C | 39.3°C | 23.0°C | 50 mm | 67% | 1.8 m/s | 5.8 |
| 2013 | 35.6°C | 30.1°C | 24.7°C | 38.6°C | 22.4°C | 65 mm | 67% | 2.3 m/s | 6.2 |
| 2012 | 33.6°C | 29.0°C | 24.4°C | 38.5°C | 21.9°C | 76 mm | 71% | 2.2 m/s | 5.5 |
| 2011 | 34.2°C | 29.2°C | 24.2°C | 38.7°C | 22.3°C | 64 mm | 68% | 2.1 m/s | 5.6 |
| 2010 | 34.1°C | 29.4°C | 24.8°C | 38.6°C | 23.5°C | 78 mm | 72% | 1.9 m/s | 5.7 |
| 2009 | 35.5°C | 30.0°C | 24.5°C | 39.0°C | 21.5°C | 24 mm | 66% | 2.5 m/s | 5.7 |
| 2008 ❄️ | 29.6°C | 26.3°C | 23.0°C | 31.6°C | 21.5°C | 124 mm | 86% | 1.8 m/s | 5.6 |
| 2007 | 33.4°C | 28.8°C | 24.1°C | 39.6°C | 22.4°C | 139 mm | 73% | 1.6 m/s | 5.9 |
| 2006 | 35.5°C | 29.9°C | 24.3°C | 38.8°C | 22.8°C | 69 mm | 66% | 2.3 m/s | 6 |
| 2005 | 30.0°C | 26.8°C | 23.6°C | 38.1°C | 22.1°C | 289 mm | 85% | 1.4 m/s | 5.4 |
| 2004 | 33.5°C | 28.9°C | 24.3°C | 37.6°C | 22.9°C | 102 mm | 73% | 1.6 m/s | 5.8 |
| 2003 | 33.9°C | 29.0°C | 24.0°C | 36.7°C | 21.4°C | 53 mm | 72% | 1.7 m/s | 5.8 |
| 2002 | 34.9°C | 29.6°C | 24.3°C | 38.0°C | 23.0°C | 80 mm | 69% | 1.6 m/s | 5.8 |
| 2001 | 31.5°C | 27.6°C | 23.7°C | 38.5°C | 22.4°C | 239 mm | 78% | 1.4 m/s | 5.2 |
| 2000 | 33.1°C | 28.4°C | 23.7°C | 36.7°C | 22.1°C | 111 mm | 75% | 2.7 m/s | 6.1 |
| 1999 | 33.5°C | 28.8°C | 24.0°C | 37.1°C | 22.0°C | 115 mm | 71% | 3.6 m/s | 5.8 |
| 1998 | 37.3°C | 31.4°C | 25.4°C | 40.4°C | 23.5°C | 50 mm | 63% | 2.2 m/s | 5.8 |
| 1997 | 35.1°C | 29.6°C | 24.1°C | 38.2°C | 22.3°C | 60 mm | 64% | 1.7 m/s | 5.7 |
| 1996 | 32.0°C | 27.9°C | 23.9°C | 37.1°C | 22.7°C | 156 mm | 77% | 1.7 m/s | 5.2 |
| 1995 | 33.1°C | 28.6°C | 24.0°C | 39.3°C | 22.3°C | 94 mm | 72% | 1.6 m/s | 5.5 |
| 1994 | 33.6°C | 28.6°C | 23.6°C | 37.6°C | 21.5°C | 81 mm | 73% | 2 m/s | 5.7 |
| 1993 | 36.6°C | 30.4°C | 24.3°C | 39.8°C | 21.9°C | 51 mm | 63% | 1.9 m/s | 6.1 |
| 1992 | 37.3°C | 31.0°C | 24.7°C | 40.4°C | 22.4°C | 32 mm | 60% | 2.3 m/s | 6.1 |
| 1991 | 36.3°C | 30.8°C | 25.2°C | 39.2°C | 23.3°C | 7 mm | 61% | 2.4 m/s | 5.8 |
| 1990 | 37.5°C | 31.2°C | 25.0°C | 39.7°C | 23.2°C | 8 mm | 60% | 2.7 m/s | 5.9 |
| 1989 | 35.3°C | 29.8°C | 24.2°C | 39.2°C | 22.5°C | 93 mm | 66% | 2.6 m/s | 6.1 |
| 1988 | 32.6°C | 28.3°C | 24.1°C | 39.0°C | 22.5°C | 166 mm | 75% | 1.6 m/s | 5.4 |
| 1987 | 35.2°C | 29.7°C | 24.3°C | 39.6°C | 23.0°C | 114 mm | 67% | 2.1 m/s | 5.8 |
| 1986 | 34.2°C | 29.2°C | 24.2°C | 38.6°C | 22.6°C | 174 mm | 71% | 1.8 m/s | 6.2 |
| 1985 | 33.4°C | 28.7°C | 23.9°C | 36.2°C | 22.6°C | 68 mm | 71% | 2.5 m/s | 6.2 |
| 1984 🌧️ | 29.9°C | 26.4°C | 22.8°C | 33.2°C | 21.4°C | 296 mm | 84% | 1.7 m/s | 5.2 |
| 1983 | 38.0°C | 31.4°C | 24.8°C | 40.3°C | 21.7°C | 41 mm | 59% | 2.5 m/s | — |
| 1982 | 33.6°C | 28.8°C | 24.0°C | 38.7°C | 22.9°C | 289 mm | 73% | 2 m/s | — |
| 1981 | 33.8°C | 28.7°C | 23.6°C | 37.5°C | 22.2°C | 146 mm | 74% | 1.9 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 34.4°C with lows near 24.4°C (mean 29.4°C), based on 45 years of NASA POWER data.
April averages 96 mm of rainfall in Tirunelveli, one of the drier months. The wettest on record was 296 mm in 1984.
The hottest April reached 40.4°C in 1992. The coldest dipped to 21.4°C in 1984.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 0.9°C. Daytime highs moved from 33.7°C to 34.6°C and overnight lows from 23.8°C to 24.7°C over the same span.
April is one of the warmer months of the year in Tirunelveli and one of the drier months, so plan for around 34.4°C daytime highs and 24.4°C at night.
Not quite — April is the 12th coolest month in Tirunelveli, averaging 29.4°C.
For April in Tirunelveli, pack light, breathable clothing and sun protection, with typical highs of 34.4°C and lows of 24.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in April averages 70% — moderately humid.
Average wind speed in April is 2 m/s. The windiest April on record averaged 3.6 m/s (1999).
The wettest April on record was 1984 with 296 mm. On average, April sees 96 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 Tirunelveli 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.
