March is one of the cooler months of the year in Waipahu, with average highs near 24.4°C and lows around 21.5°C (mean 23°C). It is a relatively wet time of year, averaging 85 mm of rainfall and 75% relative humidity across the period.
March is one of the cooler months of the year in Waipahu. Across 45 years of records, the warmest March in Waipahu was 2025 — when the month averaged 24.9°C — while the coldest was 1982 at 21.7°C. Typical March days reach 24.4°C with nights near 21.5°C. The long-term trend is warming, about 0.3°C per decade.
March is a relatively wet time of year in Waipahu, averaging 85 mm of rainfall. The wettest March on record was 2006 with 388 mm, while the driest was 1998 at 6 mm.
Relative humidity in Waipahu during March averages 75%. The most humid March was 2006 at 85%, and the least humid was 1998 at 69%.
March receives about 5.7 kWh/m²/day of solar energy in Waipahu. The sunniest Marchs were 2000 and 2025 at 6.4 kWh/m²/day, and the cloudiest was 2006 at 3.7.
Average wind speed in Waipahu during March is 5.3 m/s. The windiest March was 1985 at 7.5 m/s, while the calmest was 2017 at 3.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 22.5°C | 22.7°C | 23.1°C | 22.9°C | 23.8°C | +1.3°C |
| Avg High | 23.9°C | 24.1°C | 24.6°C | 24.4°C | 25.2°C | +1.3°C |
| Avg Low | 21.2°C | 21.2°C | 21.7°C | 21.4°C | 22.4°C | +1.2°C |
| Avg Rain | 119 mm | 39 mm | 90 mm | 78 mm | 116 mm | -4 mm |
March temperatures in Waipahu have risen by about 1.5°C between 1981–1985 and 2021–2025.
March has ranged from a record low of 17.9°C (1983) to a record high of 28°C (2025).
Rainfall in March is a relatively wet time of year, averaging 85 mm, with a wettest year of 388 mm.
One of the best times to visit Waipahu
March is one of the best times to visit Waipahu. Expect days averaging 24.4°C and nights around 21.5°C (mean 23°C) — cooler than Waipahu's yearly average — with higher rainfall (85 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 🔥 | 26.6°C | 24.9°C | 23.2°C | 28.0°C | 22.5°C | 22 mm | 72% | 4.9 m/s | 6.4 |
| 2024 | 24.9°C | 23.4°C | 21.8°C | 26.2°C | 20.1°C | 47 mm | 72% | 6.4 m/s | 6.1 |
| 2023 | 25.1°C | 23.9°C | 22.6°C | 26.4°C | 21.3°C | 91 mm | 78% | 4.1 m/s | 5.7 |
| 2022 | 25.9°C | 24.3°C | 22.7°C | 26.8°C | 21.2°C | 55 mm | 75% | 4.3 m/s | 6.3 |
| 2021 | 24.1°C | 23.0°C | 21.9°C | 25.7°C | 20.8°C | 254 mm | 79% | 6 m/s | 5.5 |
| 2020 | 24.3°C | 23.2°C | 22.0°C | 25.8°C | 21.2°C | 224 mm | 79% | 5.5 m/s | 5.3 |
| 2019 | 23.8°C | 22.3°C | 20.7°C | 24.9°C | 18.3°C | 36 mm | 74% | 5.1 m/s | 6.1 |
| 2018 | 23.8°C | 22.6°C | 21.3°C | 26.4°C | 19.4°C | 112 mm | 79% | 4.5 m/s | 4.9 |
| 2017 | 25.6°C | 24.0°C | 22.3°C | 26.6°C | 20.5°C | 50 mm | 77% | 3.9 m/s | 6.3 |
| 2016 | 25.0°C | 23.3°C | 21.6°C | 26.6°C | 19.3°C | 54 mm | 71% | 4 m/s | 6 |
| 2015 | 24.2°C | 22.7°C | 21.1°C | 26.4°C | 18.6°C | 56 mm | 74% | 4.8 m/s | 5.7 |
| 2014 | 24.5°C | 23.0°C | 21.5°C | 26.5°C | 19.9°C | 79 mm | 75% | 4.8 m/s | 5.8 |
| 2013 | 23.9°C | 22.3°C | 20.7°C | 25.3°C | 18.6°C | 86 mm | 73% | 4.4 m/s | 5.6 |
| 2012 | 23.8°C | 22.6°C | 21.3°C | 25.3°C | 20.0°C | 190 mm | 77% | 6.5 m/s | 5.7 |
| 2011 | 24.6°C | 23.4°C | 22.2°C | 25.7°C | 21.1°C | 81 mm | 77% | 6.3 m/s | 5.8 |
| 2010 | 24.3°C | 22.9°C | 21.5°C | 26.0°C | 20.0°C | 34 mm | 72% | 6.9 m/s | 6.1 |
| 2009 | 23.3°C | 22.0°C | 20.8°C | 24.8°C | 17.9°C | 73 mm | 76% | 6.3 m/s | 5.4 |
| 2008 | 25.8°C | 24.2°C | 22.6°C | 26.8°C | 22.1°C | 7 mm | 71% | 5.4 m/s | 6.3 |
| 2007 | 25.6°C | 24.0°C | 22.4°C | 26.5°C | 20.9°C | 15 mm | 73% | 4.9 m/s | 5.9 |
| 2006 🌧️ | 24.0°C | 23.0°C | 22.0°C | 25.3°C | 21.1°C | 388 mm | 85% | 4.5 m/s | 3.7 |
| 2005 | 23.9°C | 22.4°C | 21.0°C | 26.0°C | 18.7°C | 116 mm | 75% | 5.2 m/s | 5.8 |
| 2004 | 24.0°C | 22.7°C | 21.5°C | 26.5°C | 19.3°C | 119 mm | 79% | 6.1 m/s | 5.4 |
| 2003 | 25.4°C | 23.8°C | 22.2°C | 26.5°C | 21.0°C | 78 mm | 75% | 4.4 m/s | 5.9 |
| 2002 | 24.0°C | 22.5°C | 21.0°C | 25.6°C | 18.1°C | 70 mm | 76% | 4.9 m/s | 5.8 |
| 2001 | 24.8°C | 23.1°C | 21.5°C | 26.7°C | 19.7°C | 16 mm | 70% | 5.1 m/s | 6 |
| 2000 | 24.8°C | 23.2°C | 21.6°C | 25.7°C | 20.7°C | 14 mm | 71% | 5.9 m/s | 6.4 |
| 1999 | 24.1°C | 22.8°C | 21.4°C | 25.6°C | 20.5°C | 36 mm | 72% | 7.4 m/s | 6.1 |
| 1998 | 25.6°C | 23.9°C | 22.2°C | 27.0°C | 19.6°C | 6 mm | 69% | 5 m/s | 6.1 |
| 1997 | 25.0°C | 23.5°C | 22.0°C | 26.5°C | 20.1°C | 25 mm | 75% | 6.1 m/s | 5.6 |
| 1996 | 23.7°C | 22.1°C | 20.6°C | 25.9°C | 18.6°C | 15 mm | 71% | 5 m/s | 5.8 |
| 1995 | 24.9°C | 23.3°C | 21.7°C | 26.5°C | 19.7°C | 15 mm | 72% | 5.2 m/s | 5.8 |
| 1994 | 23.8°C | 22.5°C | 21.1°C | 26.3°C | 19.2°C | 37 mm | 71% | 6.2 m/s | 5.3 |
| 1993 | 23.8°C | 22.2°C | 20.7°C | 25.9°C | 18.6°C | 9 mm | 71% | 6.2 m/s | 5.8 |
| 1992 | 24.5°C | 22.8°C | 21.2°C | 25.8°C | 20.6°C | 19 mm | 70% | 5.2 m/s | 5.7 |
| 1991 | 22.8°C | 21.8°C | 20.7°C | 24.5°C | 19.0°C | 163 mm | 77% | 6.8 m/s | 4.8 |
| 1990 | 23.2°C | 21.8°C | 20.4°C | 24.9°C | 18.5°C | 67 mm | 75% | 5.7 m/s | 5.3 |
| 1989 | 24.3°C | 23.0°C | 21.7°C | 26.0°C | 19.6°C | 74 mm | 79% | 4.9 m/s | 5.4 |
| 1988 | 24.3°C | 22.9°C | 21.6°C | 26.1°C | 20.0°C | 56 mm | 77% | 5 m/s | 5.8 |
| 1987 | 23.6°C | 22.0°C | 20.4°C | 25.2°C | 18.4°C | 38 mm | 74% | 5.4 m/s | 5.6 |
| 1986 | 24.2°C | 22.9°C | 21.5°C | 25.8°C | 19.7°C | 65 mm | 81% | 5.2 m/s | 5.4 |
| 1985 | 23.0°C | 21.9°C | 20.8°C | 23.7°C | 20.2°C | 80 mm | 75% | 7.5 m/s | 5.3 |
| 1984 | 24.6°C | 23.3°C | 21.9°C | 25.8°C | 20.9°C | 338 mm | 76% | 4.3 m/s | 6 |
| 1983 | 23.4°C | 22.0°C | 20.6°C | 24.6°C | 17.9°C | 308 mm | 77% | 4.2 m/s | — |
| 1982 ❄️ | 22.9°C | 21.7°C | 20.6°C | 25.3°C | 19.1°C | 78 mm | 80% | 5.3 m/s | — |
| 1981 | 24.7°C | 23.1°C | 21.4°C | 26.1°C | 19.4°C | 37 mm | 73% | 5 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 24.4°C with lows near 21.5°C (mean 23°C), based on 45 years of NASA POWER data.
March averages 85 mm of rainfall in Waipahu, a relatively wet time of year. The wettest on record was 388 mm in 2006.
The hottest March reached 28°C in 2025. The coldest dipped to 17.9°C in 1983.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 1.5°C. Daytime highs moved from 23.7°C to 25.3°C and overnight lows from 21.1°C to 22.4°C over the same span.
March is one of the cooler months of the year in Waipahu and a relatively wet time of year, so plan for around 24.4°C daytime highs and 21.5°C at night.
Not quite — March is the 3rd coolest month in Waipahu, averaging 23°C.
For March in Waipahu, pack light layers you can adjust through the day, with typical highs of 24.4°C and lows of 21.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in March averages 75% — moderately humid.
Average wind speed in March is 5.3 m/s. The windiest March on record averaged 7.5 m/s (1985).
The wettest March on record was 2006 with 388 mm. On average, March sees 85 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 Waipahu behaves each March, 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 March specifically, along with year-by-year records and how the month has changed over the decades.
