April is one of the warmer months of the year in Waiuku, with average highs near 19.7°C and lows around 14.4°C (mean 17.1°C). It is about average for rainfall, averaging 93 mm of rainfall and 79% relative humidity across the period.
April is one of the warmer months of the year in Waiuku. Across 45 years of records, the warmest April in Waiuku was 2025 — when the month averaged 18.7°C — while the coldest was 1992 at 14.4°C. Typical April days reach 19.7°C with nights near 14.4°C. The long-term trend is warming, about 0.3°C per decade.
April is about average for rainfall in Waiuku, averaging 93 mm of rainfall. The wettest April on record was 1995 with 221 mm, while the driest was 1994 at 5 mm.
Relative humidity in Waiuku during April averages 79%. The most humid April was 1995 at 84%, and the least humid was 2005 at 74%.
April receives about 3.4 kWh/m²/day of solar energy in Waiuku. The sunniest Aprils were 2019, 2020 and 2022, among others at 3.8 kWh/m²/day, and the cloudiest was 1996 at 3.
Average wind speed in Waiuku during April is 4.3 m/s. The windiest Aprils were 1991 and 2025 at 5.2 m/s, while the calmest were 2007 and 2016 at 3.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 16.6°C | 16.7°C | 17.0°C | 17.5°C | 17.7°C | +1.1°C |
| Avg High | 19.4°C | 19.2°C | 19.6°C | 20.2°C | 20.2°C | +0.8°C |
| Avg Low | 13.7°C | 14.1°C | 14.4°C | 14.9°C | 15.1°C | +1.4°C |
| Avg Rain | 97 mm | 96 mm | 78 mm | 95 mm | 105 mm | +8 mm |
April temperatures in Waiuku have risen by about 1.3°C between 1981–1985 and 2021–2025.
April has ranged from a record low of 7.9°C (1994) to a record high of 24.6°C (1999).
Rainfall in April is about average for rainfall, averaging 93 mm, with a wettest year of 221 mm.
A good time to visit Waiuku
April is a good time to visit Waiuku, with days averaging 19.7°C and nights around 14.4°C (mean 17.1°C, warmer than Waiuku'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 🔥 | 21.0°C | 18.7°C | 16.4°C | 23.2°C | 12.9°C | 218 mm | 83% | 5.2 m/s | 3.2 |
| 2024 | 19.6°C | 17.1°C | 14.6°C | 21.9°C | 11.6°C | 79 mm | 81% | 4.1 m/s | 3.4 |
| 2023 | 20.0°C | 17.6°C | 15.3°C | 22.5°C | 10.8°C | 125 mm | 83% | 5 m/s | 3.3 |
| 2022 | 20.7°C | 18.1°C | 15.5°C | 23.7°C | 11.7°C | 83 mm | 78% | 4 m/s | 3.8 |
| 2021 | 20.0°C | 17.4°C | 14.9°C | 23.3°C | 11.4°C | 83 mm | 79% | 4.1 m/s | 3.3 |
| 2020 | 19.9°C | 17.0°C | 14.1°C | 23.3°C | 11.5°C | 41 mm | 76% | 4.1 m/s | 3.8 |
| 2019 | 19.7°C | 16.8°C | 13.8°C | 22.5°C | 10.5°C | 95 mm | 76% | 3.7 m/s | 3.8 |
| 2018 | 20.0°C | 17.5°C | 15.0°C | 23.3°C | 9.7°C | 110 mm | 79% | 4.9 m/s | 3.3 |
| 2017 | 20.6°C | 18.1°C | 15.5°C | 24.6°C | 11.9°C | 174 mm | 82% | 3.9 m/s | 3.4 |
| 2016 | 20.4°C | 17.8°C | 15.3°C | 24.2°C | 12.4°C | 57 mm | 77% | 3.5 m/s | 3.3 |
| 2015 | 20.1°C | 17.6°C | 15.0°C | 23.2°C | 10.8°C | 82 mm | 78% | 4.5 m/s | 3.3 |
| 2014 | 20.8°C | 18.1°C | 15.5°C | 23.8°C | 11.0°C | 110 mm | 79% | 3.9 m/s | 3.4 |
| 2013 | 20.4°C | 18.0°C | 15.6°C | 23.8°C | 11.9°C | 122 mm | 78% | 4.1 m/s | 3.4 |
| 2012 | 20.0°C | 17.0°C | 14.0°C | 22.6°C | 10.0°C | 24 mm | 77% | 4.2 m/s | 3.8 |
| 2011 | 19.6°C | 17.0°C | 14.4°C | 22.0°C | 9.5°C | 136 mm | 79% | 4.3 m/s | 3.3 |
| 2010 | 20.0°C | 17.3°C | 14.5°C | 22.2°C | 10.9°C | 39 mm | 75% | 3.8 m/s | 3.5 |
| 2009 | 19.4°C | 16.7°C | 13.9°C | 21.7°C | 9.0°C | 43 mm | 76% | 4.4 m/s | 3.4 |
| 2008 | 20.0°C | 17.5°C | 15.1°C | 22.5°C | 8.9°C | 106 mm | 78% | 4.3 m/s | 3.1 |
| 2007 | 19.2°C | 16.7°C | 14.2°C | 22.1°C | 11.6°C | 52 mm | 77% | 3.5 m/s | 3.5 |
| 2006 | 20.3°C | 17.9°C | 15.6°C | 23.4°C | 13.4°C | 160 mm | 81% | 4.5 m/s | 3.4 |
| 2005 | 20.1°C | 17.0°C | 13.9°C | 23.0°C | 8.2°C | 21 mm | 74% | 4.2 m/s | 3.7 |
| 2004 | 18.2°C | 15.6°C | 13.0°C | 21.1°C | 10.5°C | 72 mm | 81% | 3.9 m/s | 3.3 |
| 2003 | 19.8°C | 17.1°C | 14.4°C | 22.4°C | 10.1°C | 68 mm | 79% | 3.7 m/s | 3.7 |
| 2002 | 19.4°C | 16.8°C | 14.1°C | 23.0°C | 10.1°C | 53 mm | 75% | 4 m/s | 3.7 |
| 2001 | 19.8°C | 17.2°C | 14.6°C | 22.4°C | 10.8°C | 105 mm | 77% | 4.5 m/s | 3.5 |
| 2000 | 19.8°C | 17.5°C | 15.1°C | 23.2°C | 10.7°C | 101 mm | 80% | 4.2 m/s | 3.1 |
| 1999 | 20.0°C | 17.5°C | 15.0°C | 24.6°C | 12.2°C | 89 mm | 78% | 4.6 m/s | 3.3 |
| 1998 | 20.6°C | 17.9°C | 15.2°C | 24.2°C | 12.2°C | 29 mm | 80% | 4.1 m/s | 3.1 |
| 1997 | 18.4°C | 15.9°C | 13.5°C | 22.3°C | 10.9°C | 62 mm | 77% | 4.7 m/s | 3.4 |
| 1996 | 19.7°C | 17.4°C | 15.0°C | 22.6°C | 11.2°C | 134 mm | 83% | 4.4 m/s | 3 |
| 1995 🌧️ | 20.7°C | 18.3°C | 16.0°C | 24.2°C | 9.9°C | 221 mm | 84% | 4.1 m/s | 3.4 |
| 1994 | 19.7°C | 16.8°C | 13.8°C | 23.7°C | 7.9°C | 5 mm | 76% | 4.4 m/s | 3.4 |
| 1993 | 17.9°C | 15.3°C | 12.8°C | 21.5°C | 8.4°C | 78 mm | 80% | 4.4 m/s | 3.3 |
| 1992 ❄️ | 17.3°C | 14.4°C | 11.4°C | 22.4°C | 8.5°C | 83 mm | 77% | 3.9 m/s | 3.1 |
| 1991 | 17.9°C | 15.5°C | 13.1°C | 22.5°C | 10.1°C | 170 mm | 79% | 5.2 m/s | 3.2 |
| 1990 | 20.1°C | 17.5°C | 15.0°C | 22.4°C | 9.2°C | 85 mm | 80% | 4.7 m/s | 3.4 |
| 1989 | 19.8°C | 17.1°C | 14.5°C | 22.6°C | 11.0°C | 67 mm | 75% | 4.2 m/s | 3.3 |
| 1988 | 19.2°C | 16.1°C | 13.1°C | 22.0°C | 8.9°C | 22 mm | 79% | 4.2 m/s | 3.6 |
| 1987 | 18.9°C | 16.3°C | 13.6°C | 22.4°C | 10.1°C | 155 mm | 81% | 5.1 m/s | 3.3 |
| 1986 | 19.9°C | 17.1°C | 14.3°C | 22.1°C | 10.3°C | 111 mm | 78% | 4.5 m/s | 3.6 |
| 1985 | 18.8°C | 16.1°C | 13.4°C | 21.7°C | 9.7°C | 89 mm | 79% | 4.7 m/s | 3.5 |
| 1984 | 19.2°C | 16.1°C | 13.1°C | 21.8°C | 9.6°C | 62 mm | 79% | 3.8 m/s | 3.3 |
| 1983 | 19.1°C | 16.4°C | 13.7°C | 22.0°C | 8.5°C | 180 mm | 82% | 4.4 m/s | — |
| 1982 | 18.6°C | 15.7°C | 12.7°C | 21.6°C | 9.9°C | 47 mm | 75% | 3.8 m/s | — |
| 1981 | 20.9°C | 18.1°C | 15.3°C | 23.0°C | 13.4°C | 139 mm | 78% | 4.1 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 19.7°C with lows near 14.4°C (mean 17.1°C), based on 45 years of NASA POWER data.
April averages 93 mm of rainfall in Waiuku, about average for rainfall. The wettest on record was 221 mm in 1995.
The hottest April reached 24.6°C in 1999. The coldest dipped to 7.9°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 1.3°C. Daytime highs moved from 19.3°C to 20.3°C and overnight lows from 13.6°C to 15.3°C over the same span.
April is one of the warmer months of the year in Waiuku and about average for rainfall, so plan for around 19.7°C daytime highs and 14.4°C at night.
Not quite — April is the 8th coolest month in Waiuku, averaging 17.1°C.
For April in Waiuku, pack light layers you can adjust through the day, with typical highs of 19.7°C and lows of 14.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in April averages 79% — quite humid.
Average wind speed in April is 4.3 m/s. The windiest April on record averaged 5.2 m/s (1991).
The wettest April on record was 1995 with 221 mm. On average, April sees 93 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 Waiuku 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.
