April is one of the warmer months of the year in Westport, with average highs near 13.9°C and lows around 7.2°C (mean 10.6°C). It is about average for rainfall, averaging 150 mm of rainfall and 89% relative humidity across the period.
April is one of the warmer months of the year in Westport. Across 45 years of records, the warmest April in Westport was 2025 — when the month averaged 12°C — while the coldest was 1993 at 8.5°C. Typical April days reach 13.9°C with nights near 7.2°C. The long-term trend is warming, about 0.2°C per decade.
April is about average for rainfall in Westport, averaging 150 mm of rainfall. The wettest April on record was 1996 with 311 mm, while the driest was 1988 at 37 mm.
Relative humidity in Westport during April averages 89%. The most humid April was 2021 at 92%, and the least humid was 1982 at 78%.
April receives about 2.9 kWh/m²/day of solar energy in Westport. The sunniest April was 2019 at 3.4 kWh/m²/day, and the cloudiest were 2000 and 2014 at 2.5.
Average wind speed in Westport during April is 0.4 m/s. The windiest Aprils were 2023, 2024 and 2025, among others at 0.4 m/s, while the calmest was 1992 at 0.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 10.5°C | 10.0°C | 10.4°C | 10.8°C | 11.2°C | +0.7°C |
| Avg High | 14.1°C | 13.3°C | 13.7°C | 14.0°C | 14.3°C | +0.2°C |
| Avg Low | 6.9°C | 6.7°C | 7.0°C | 7.6°C | 8.1°C | +1.2°C |
| Avg Rain | 135 mm | 160 mm | 123 mm | 171 mm | 167 mm | +32 mm |
April temperatures in Westport have risen by about 0.8°C between 1981–1985 and 2021–2025.
April has ranged from a record low of -1.7°C (1990) to a record high of 19.7°C (1982).
Rainfall in April is about average for rainfall, averaging 150 mm, with a wettest year of 311 mm.
A good time to visit Westport
April is a good time to visit Westport, with days averaging 13.9°C and nights around 7.2°C (mean 10.6°C, close to Westport's yearly average) and higher rainfall. February and January are marginally more temperate, but April still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 🔥 | 15.0°C | 12.0°C | 9.1°C | 19.2°C | 5.5°C | 280 mm | 91% | 0.4 m/s | 2.6 |
| 2024 | 14.0°C | 11.1°C | 8.1°C | 17.9°C | 4.8°C | 122 mm | 91% | 0.4 m/s | 3 |
| 2023 | 14.7°C | 11.3°C | 7.8°C | 17.4°C | 4.7°C | 220 mm | 90% | 0.4 m/s | 2.9 |
| 2022 | 15.2°C | 11.9°C | 8.5°C | 18.0°C | 3.7°C | 106 mm | 89% | 0.4 m/s | 3.1 |
| 2021 | 13.6°C | 10.9°C | 8.2°C | 18.1°C | 3.7°C | 143 mm | 92% | 0.4 m/s | 2.8 |
| 2020 | 13.4°C | 10.2°C | 7.1°C | 18.0°C | 3.0°C | 133 mm | 90% | 0.4 m/s | 2.9 |
| 2019 | 14.2°C | 10.3°C | 6.4°C | 16.7°C | 1.2°C | 154 mm | 87% | 0.4 m/s | 3.4 |
| 2018 | 12.7°C | 10.0°C | 7.2°C | 18.1°C | -0.2°C | 212 mm | 91% | 0.4 m/s | 2.6 |
| 2017 | 14.2°C | 11.0°C | 7.8°C | 17.4°C | 2.5°C | 212 mm | 90% | 0.4 m/s | 2.7 |
| 2016 | 14.7°C | 11.4°C | 8.1°C | 17.1°C | 4.3°C | 92 mm | 89% | 0.4 m/s | 3.1 |
| 2015 | 14.0°C | 11.0°C | 8.0°C | 17.9°C | -0.9°C | 202 mm | 90% | 0.4 m/s | 2.6 |
| 2014 | 14.4°C | 11.4°C | 8.4°C | 19.3°C | 3.1°C | 187 mm | 89% | 0.4 m/s | 2.5 |
| 2013 | 13.5°C | 10.7°C | 7.9°C | 17.6°C | 3.0°C | 216 mm | 89% | 0.4 m/s | 2.7 |
| 2012 | 14.7°C | 11.2°C | 7.7°C | 18.0°C | 4.5°C | 108 mm | 87% | 0.4 m/s | 3.1 |
| 2011 | 13.3°C | 9.7°C | 6.1°C | 18.2°C | 0.5°C | 200 mm | 87% | 0.4 m/s | 2.8 |
| 2010 | 13.9°C | 11.1°C | 8.3°C | 16.1°C | 1.8°C | 126 mm | 90% | 0.4 m/s | 2.6 |
| 2009 | 13.6°C | 10.4°C | 7.3°C | 16.7°C | 1.4°C | 168 mm | 89% | 0.4 m/s | 2.9 |
| 2008 | 14.6°C | 10.8°C | 7.0°C | 17.3°C | -1.4°C | 128 mm | 87% | 0.4 m/s | 3 |
| 2007 | 13.0°C | 9.9°C | 6.9°C | 15.4°C | 3.2°C | 88 mm | 89% | 0.4 m/s | 2.9 |
| 2006 | 14.1°C | 11.4°C | 8.7°C | 17.3°C | 5.1°C | 299 mm | 92% | 0.4 m/s | 2.7 |
| 2005 | 13.0°C | 9.5°C | 6.0°C | 17.0°C | -0.8°C | 73 mm | 89% | 0.4 m/s | 3 |
| 2004 | 12.9°C | 9.6°C | 6.3°C | 18.8°C | 1.3°C | 95 mm | 90% | 0.4 m/s | 2.7 |
| 2003 | 13.6°C | 9.8°C | 6.0°C | 16.3°C | 1.3°C | 54 mm | 86% | 0.4 m/s | 3 |
| 2002 | 14.2°C | 10.6°C | 7.1°C | 18.7°C | 0.5°C | 66 mm | 88% | 0.4 m/s | 3.1 |
| 2001 | 14.2°C | 10.7°C | 7.1°C | 18.2°C | 2.9°C | 47 mm | 87% | 0.4 m/s | 3 |
| 2000 | 14.1°C | 11.0°C | 7.8°C | 15.7°C | 2.9°C | 215 mm | 89% | 0.4 m/s | 2.5 |
| 1999 | 14.3°C | 10.8°C | 7.2°C | 18.9°C | 2.2°C | 136 mm | 86% | 0.4 m/s | 2.9 |
| 1998 | 13.8°C | 10.3°C | 6.9°C | 17.6°C | 3.4°C | 95 mm | 89% | 0.4 m/s | 2.8 |
| 1997 | 12.7°C | 9.5°C | 6.3°C | 17.9°C | -0.6°C | 106 mm | 89% | 0.4 m/s | 2.8 |
| 1996 🌧️ | 13.4°C | 10.6°C | 7.8°C | 17.2°C | 4.1°C | 311 mm | 91% | 0.4 m/s | 2.6 |
| 1995 | 14.5°C | 11.4°C | 8.4°C | 19.4°C | -0.2°C | 226 mm | 88% | 0.4 m/s | 2.8 |
| 1994 | 13.8°C | 10.4°C | 7.1°C | 17.4°C | 0.2°C | 113 mm | 90% | 0.4 m/s | 2.8 |
| 1993 ❄️ | 12.1°C | 8.5°C | 4.8°C | 14.6°C | -1.2°C | 125 mm | 87% | 0.4 m/s | 2.9 |
| 1992 | 12.7°C | 8.9°C | 5.1°C | 15.8°C | 0.2°C | 67 mm | 87% | 0.3 m/s | 2.7 |
| 1991 | 12.1°C | 8.8°C | 5.5°C | 17.2°C | 1.2°C | 173 mm | 89% | 0.4 m/s | 2.9 |
| 1990 | 14.0°C | 10.8°C | 7.6°C | 18.2°C | -1.7°C | 251 mm | 90% | 0.4 m/s | 2.6 |
| 1989 | 13.9°C | 10.5°C | 7.1°C | 18.0°C | 0.5°C | 119 mm | 88% | 0.4 m/s | 2.8 |
| 1988 | 13.8°C | 9.6°C | 5.5°C | 16.6°C | -0.1°C | 37 mm | 85% | 0.4 m/s | 3.1 |
| 1987 | 13.6°C | 9.9°C | 6.2°C | 17.8°C | 1.4°C | 175 mm | 88% | 0.4 m/s | 2.9 |
| 1986 | 14.5°C | 11.3°C | 8.2°C | 17.7°C | 3.1°C | 161 mm | 90% | 0.4 m/s | 3.2 |
| 1985 | 14.9°C | 11.0°C | 7.0°C | 18.7°C | 2.7°C | 126 mm | 85% | 0.4 m/s | 3.1 |
| 1984 | 14.1°C | 10.5°C | 7.0°C | 17.4°C | 2.3°C | 108 mm | 88% | 0.4 m/s | 2.8 |
| 1983 | 13.0°C | 9.8°C | 6.6°C | 16.1°C | 0.8°C | 239 mm | 89% | 0.4 m/s | — |
| 1982 | 14.5°C | 10.1°C | 5.7°C | 19.7°C | 1.5°C | 39 mm | 78% | 0.4 m/s | — |
| 1981 | 14.8°C | 11.7°C | 8.7°C | 19.1°C | 5.1°C | 212 mm | 89% | 0.4 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 13.9°C with lows near 7.2°C (mean 10.6°C), based on 45 years of NASA POWER data.
April averages 150 mm of rainfall in Westport, about average for rainfall. The wettest on record was 311 mm in 1996.
The hottest April reached 19.7°C in 1982. The coldest dipped to -1.7°C in 1990.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 0.8°C. Daytime highs moved from 14.3°C to 14.5°C and overnight lows from 7°C to 8.3°C over the same span.
April is one of the warmer months of the year in Westport and about average for rainfall, so plan for around 13.9°C daytime highs and 7.2°C at night.
Not quite — April is the 7th coolest month in Westport, averaging 10.6°C.
For April in Westport, pack warm layers and a jacket for chilly mornings, with typical highs of 13.9°C and lows of 7.2°C. Bring an umbrella or light rain jacket too.
Relative humidity in April averages 89% — quite humid.
Average wind speed in April is 0.4 m/s. The windiest April on record averaged 0.4 m/s (1981).
The wettest April on record was 1996 with 311 mm. On average, April sees 150 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 Westport 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.
