April is one of the warmer months of the year in Tirunelveli, with average highs near 38.3°C and lows around 22.6°C (mean 30.5°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 32.2°C — while the coldest was 2008 at 26.6°C. Typical April days reach 38.3°C with nights near 22.6°C. The long-term April temperature trend is broadly flat.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 30.2°C | 30.7°C | 29.9°C | 30.8°C | 30.7°C | +0.5°C |
| Avg High | 38.0°C | 38.9°C | 37.5°C | 38.7°C | 38.3°C | +0.3°C |
| Avg Low | 22.4°C | 22.5°C | 22.2°C | 22.9°C | 23.1°C | +0.7°C |
| Avg Rain | 154 mm | 65 mm | 123 mm | 64 mm | 65 mm | -89 mm |
April temperatures in Tirunelveli have risen by about 1°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.
Daytime highs and overnight lows have shifted differently — highs rose about 0°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
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 38.3°C and nights around 22.6°C (mean 30.5°C) and higher rainfall (96 mm) — can still be rewarding for travellers who don't mind the warmth, and often means fewer crowds.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 35.5°C | 23.1°C | 29.3°C | 89 mm | 76% | 1.8 m/s | 5.5 |
| 2024 🔥 | 40.2°C | 24.2°C | 32.2°C | 29 mm | 64% | 2.1 m/s | 6 |
| 2023 | 39.5°C | 24.0°C | 31.7°C | 55 mm | 64% | 1.9 m/s | 6 |
| 2022 | 37.4°C | 22.6°C | 30.0°C | 126 mm | 75% | 1.4 m/s | 5.5 |
| 2021 | 38.5°C | 22.3°C | 30.4°C | 50 mm | 72% | 1.8 m/s | 5.9 |
| 2020 | 38.5°C | 22.2°C | 30.3°C | 42 mm | 64% | 1.8 m/s | 6.1 |
| 2019 | 39.8°C | 24.3°C | 32.0°C | 33 mm | 62% | 1.9 m/s | 6.1 |
| 2018 | 38.3°C | 23.3°C | 30.8°C | 80 mm | 71% | 1.6 m/s | 5.8 |
| 2017 | 39.2°C | 22.8°C | 31.0°C | 16 mm | 63% | 2.8 m/s | 6.3 |
| 2016 | 39.2°C | 23.4°C | 31.3°C | 20 mm | 63% | 2.1 m/s | 6.1 |
| 2015 | 37.2°C | 22.4°C | 29.8°C | 158 mm | 74% | 1.3 m/s | 5.7 |
| 2014 | 39.3°C | 23.0°C | 31.1°C | 50 mm | 67% | 1.8 m/s | 5.8 |
| 2013 | 38.6°C | 22.4°C | 30.5°C | 65 mm | 67% | 2.3 m/s | 6.2 |
| 2012 | 38.5°C | 21.9°C | 30.2°C | 76 mm | 71% | 2.2 m/s | 5.5 |
| 2011 | 38.7°C | 22.3°C | 30.5°C | 64 mm | 68% | 2.1 m/s | 5.6 |
| 2010 | 38.6°C | 23.5°C | 31.0°C | 78 mm | 72% | 1.9 m/s | 5.7 |
| 2009 | 39.0°C | 21.5°C | 30.3°C | 24 mm | 66% | 2.5 m/s | 5.7 |
| 2008 ❄️ | 31.6°C | 21.5°C | 26.6°C | 124 mm | 86% | 1.8 m/s | 5.6 |
| 2007 | 39.6°C | 22.4°C | 31.0°C | 139 mm | 73% | 1.6 m/s | 5.9 |
| 2006 | 38.8°C | 22.8°C | 30.8°C | 69 mm | 66% | 2.3 m/s | 6 |
| 2005 | 38.1°C | 22.1°C | 30.1°C | 289 mm | 85% | 1.4 m/s | 5.4 |
| 2004 | 37.6°C | 22.9°C | 30.3°C | 102 mm | 73% | 1.6 m/s | 5.8 |
| 2003 | 36.7°C | 21.4°C | 29.0°C | 53 mm | 72% | 1.7 m/s | 5.8 |
| 2002 | 38.0°C | 23.0°C | 30.5°C | 80 mm | 69% | 1.6 m/s | 5.8 |
| 2001 | 38.5°C | 22.4°C | 30.5°C | 239 mm | 78% | 1.4 m/s | 5.2 |
| 2000 | 36.7°C | 22.1°C | 29.4°C | 111 mm | 75% | 2.7 m/s | 6.1 |
| 1999 | 37.1°C | 22.0°C | 29.6°C | 115 mm | 71% | 3.6 m/s | 5.8 |
| 1998 | 40.4°C | 23.5°C | 31.9°C | 50 mm | 63% | 2.2 m/s | 5.8 |
| 1997 | 38.2°C | 22.3°C | 30.3°C | 60 mm | 64% | 1.7 m/s | 5.7 |
| 1996 | 37.1°C | 22.7°C | 29.9°C | 156 mm | 77% | 1.7 m/s | 5.2 |
| 1995 | 39.3°C | 22.3°C | 30.8°C | 94 mm | 72% | 1.6 m/s | 5.5 |
| 1994 | 37.6°C | 21.5°C | 29.5°C | 81 mm | 73% | 2 m/s | 5.7 |
| 1993 | 39.8°C | 21.9°C | 30.8°C | 51 mm | 63% | 1.9 m/s | 6.1 |
| 1992 | 40.4°C | 22.4°C | 31.4°C | 32 mm | 60% | 2.3 m/s | 6.1 |
| 1991 | 39.2°C | 23.3°C | 31.3°C | 7 mm | 61% | 2.4 m/s | 5.8 |
| 1990 | 39.7°C | 23.2°C | 31.5°C | 8 mm | 60% | 2.7 m/s | 5.9 |
| 1989 | 39.2°C | 22.5°C | 30.8°C | 93 mm | 66% | 2.6 m/s | 6.1 |
| 1988 | 39.0°C | 22.5°C | 30.7°C | 166 mm | 75% | 1.6 m/s | 5.4 |
| 1987 | 39.6°C | 23.0°C | 31.3°C | 114 mm | 67% | 2.1 m/s | 5.8 |
| 1986 | 38.6°C | 22.6°C | 30.6°C | 174 mm | 71% | 1.8 m/s | 6.2 |
| 1985 | 36.2°C | 22.6°C | 29.4°C | 68 mm | 71% | 2.5 m/s | 6.2 |
| 1984 🌧️ | 33.2°C | 21.4°C | 27.3°C | 296 mm | 84% | 1.7 m/s | 5.2 |
| 1983 | 40.3°C | 21.7°C | 31.0°C | 41 mm | 59% | 2.5 m/s | — |
| 1982 | 38.7°C | 22.9°C | 30.8°C | 289 mm | 73% | 2 m/s | — |
| 1981 | 37.5°C | 22.2°C | 29.8°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 38.3°C with lows near 22.6°C (mean 30.5°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 1°C. Daytime highs moved from 37.2°C to 38.2°C and overnight lows from 22.2°C to 23.2°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 38.3°C daytime highs and 22.6°C at night.
Not quite — April is the 12th coolest month in Tirunelveli, averaging 30.5°C.
For April in Tirunelveli, pack light, breathable clothing and sun protection, with typical highs of 38.3°C and lows of 22.6°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.
