June is one of the warmer months of the year in Waipahu, with average highs near 26.8°C and lows around 23.8°C (mean 25.3°C). It is one of the drier months, averaging 28 mm of rainfall and 74% relative humidity across the period.
June is one of the warmer months of the year in Waipahu. Across 45 years of records, the warmest June in Waipahu was 2019 — when the month averaged 26.4°C — while the coldest were 1983 and 1998 at 24.1°C. Typical June days reach 26.8°C with nights near 23.8°C. The long-term trend is warming, about 0.3°C per decade.
June is one of the drier months in Waipahu, averaging 28 mm of rainfall. The wettest June on record was 2019 with 102 mm, while the driest was 2007 at 4 mm.
Relative humidity in Waipahu during June averages 74%. The most humid June was 1982 at 79%, and the least humid was 2003 at 70%.
June receives about 7.1 kWh/m²/day of solar energy in Waipahu. The sunniest June was 2022 at 7.6 kWh/m²/day, and the cloudiest was 1990 at 6.4.
Average wind speed in Waipahu during June is 6.1 m/s. The windiest June was 1997 at 7.3 m/s, while the calmest was 1982 at 3.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 24.7°C | 25.1°C | 25.5°C | 25.5°C | 25.8°C | +1.1°C |
| Avg High | 26.2°C | 26.5°C | 27.1°C | 27.0°C | 27.5°C | +1.3°C |
| Avg Low | 23.2°C | 23.6°C | 23.9°C | 24.0°C | 24.2°C | +1°C |
| Avg Rain | 26 mm | 15 mm | 28 mm | 43 mm | 27 mm | +1 mm |
June temperatures in Waipahu have risen by about 1.2°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 21.3°C (1982) to a record high of 29.5°C (2015).
Rainfall in June is one of the drier months, averaging 28 mm, with a wettest year of 102 mm.
A good time to visit Waipahu
June is a good time to visit Waipahu, with days averaging 26.8°C and nights around 23.8°C (mean 25.3°C, close to Waipahu's yearly average) and low rainfall. February and March are marginally more temperate, but June still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 27.7°C | 26.1°C | 24.6°C | 28.6°C | 23.8°C | 23 mm | 73% | 6.1 m/s | 7 |
| 2024 | 27.5°C | 25.9°C | 24.3°C | 28.5°C | 23.5°C | 9 mm | 74% | 6.5 m/s | 7.4 |
| 2023 | 27.5°C | 25.9°C | 24.2°C | 28.3°C | 23.1°C | 13 mm | 73% | 6.1 m/s | 7.4 |
| 2022 | 27.3°C | 25.6°C | 23.9°C | 27.8°C | 23.0°C | 38 mm | 75% | 5.9 m/s | 7.6 |
| 2021 | 27.3°C | 25.7°C | 24.1°C | 28.4°C | 23.5°C | 36 mm | 74% | 5.6 m/s | 7.5 |
| 2020 | 27.4°C | 25.8°C | 24.3°C | 28.4°C | 23.8°C | 41 mm | 75% | 6.1 m/s | 7.3 |
| 2019 🔥 🌧️ | 27.9°C | 26.4°C | 24.9°C | 29.3°C | 24.1°C | 102 mm | 76% | 4.5 m/s | 6.8 |
| 2018 | 27.2°C | 25.6°C | 24.1°C | 28.6°C | 23.0°C | 43 mm | 76% | 5.7 m/s | 7.1 |
| 2017 | 27.3°C | 25.9°C | 24.5°C | 28.3°C | 24.1°C | 53 mm | 76% | 5.7 m/s | 6.9 |
| 2016 | 26.7°C | 25.3°C | 23.9°C | 27.8°C | 22.4°C | 44 mm | 76% | 6.1 m/s | 7.1 |
| 2015 | 27.4°C | 25.8°C | 24.1°C | 29.5°C | 23.4°C | 24 mm | 74% | 5 m/s | 7.5 |
| 2014 | 27.1°C | 25.6°C | 24.0°C | 28.3°C | 22.9°C | 33 mm | 74% | 5.9 m/s | 7.2 |
| 2013 | 26.9°C | 25.4°C | 23.9°C | 27.5°C | 23.3°C | 26 mm | 74% | 6.8 m/s | 7.1 |
| 2012 | 26.2°C | 24.7°C | 23.1°C | 27.7°C | 22.6°C | 24 mm | 73% | 6.7 m/s | 7.1 |
| 2011 | 26.0°C | 24.7°C | 23.4°C | 26.9°C | 22.8°C | 58 mm | 77% | 6.5 m/s | 6.7 |
| 2010 | 26.8°C | 25.2°C | 23.7°C | 27.5°C | 22.8°C | 19 mm | 72% | 6.2 m/s | 7.3 |
| 2009 | 27.5°C | 25.9°C | 24.3°C | 28.7°C | 23.4°C | 26 mm | 73% | 5.9 m/s | 7.3 |
| 2008 | 26.8°C | 25.2°C | 23.6°C | 28.3°C | 22.7°C | 63 mm | 74% | 5.5 m/s | 7.2 |
| 2007 | 27.4°C | 25.8°C | 24.1°C | 28.1°C | 23.5°C | 4 mm | 72% | 6.4 m/s | 7.4 |
| 2006 | 27.1°C | 25.4°C | 23.8°C | 28.1°C | 23.2°C | 17 mm | 73% | 5.9 m/s | 7.5 |
| 2005 | 27.0°C | 25.6°C | 24.1°C | 27.5°C | 23.4°C | 37 mm | 74% | 6.8 m/s | 7.2 |
| 2004 | 27.1°C | 25.7°C | 24.2°C | 27.9°C | 23.3°C | 54 mm | 76% | 6.4 m/s | 7 |
| 2003 | 27.6°C | 25.9°C | 24.3°C | 28.9°C | 23.7°C | 32 mm | 70% | 5.3 m/s | 7.1 |
| 2002 | 27.0°C | 25.5°C | 23.9°C | 28.0°C | 23.2°C | 29 mm | 74% | 6.5 m/s | 7.4 |
| 2001 | 26.5°C | 25.0°C | 23.6°C | 27.9°C | 23.0°C | 16 mm | 74% | 6.4 m/s | 6.9 |
| 2000 | 26.8°C | 25.1°C | 23.5°C | 27.6°C | 22.5°C | 5 mm | 73% | 5.7 m/s | 7.3 |
| 1999 | 26.0°C | 24.6°C | 23.1°C | 26.6°C | 22.1°C | 15 mm | 72% | 6.8 m/s | 7.2 |
| 1998 | 25.5°C | 24.1°C | 22.7°C | 25.9°C | 21.9°C | 28 mm | 75% | 7 m/s | 6.8 |
| 1997 | 27.3°C | 25.9°C | 24.5°C | 28.0°C | 23.7°C | 6 mm | 73% | 7.3 m/s | 7.3 |
| 1996 | 27.7°C | 26.2°C | 24.7°C | 28.9°C | 23.7°C | 8 mm | 73% | 6 m/s | 7.1 |
| 1995 | 26.8°C | 25.2°C | 23.7°C | 28.3°C | 22.8°C | 5 mm | 72% | 5.9 m/s | 6.8 |
| 1994 | 26.4°C | 24.9°C | 23.5°C | 27.7°C | 22.5°C | 7 mm | 73% | 6.8 m/s | 6.9 |
| 1993 | 26.7°C | 25.2°C | 23.6°C | 27.6°C | 22.9°C | 8 mm | 71% | 6.2 m/s | 6.9 |
| 1992 | 27.1°C | 25.6°C | 24.2°C | 28.6°C | 23.4°C | 14 mm | 72% | 6.5 m/s | 6.8 |
| 1991 | 26.2°C | 24.7°C | 23.2°C | 27.3°C | 22.4°C | 21 mm | 74% | 6.1 m/s | 6.6 |
| 1990 | 25.6°C | 24.3°C | 23.0°C | 26.5°C | 22.6°C | 36 mm | 76% | 7.1 m/s | 6.4 |
| 1989 | 26.5°C | 25.1°C | 23.6°C | 27.8°C | 22.7°C | 23 mm | 73% | 5.8 m/s | 6.5 |
| 1988 | 26.4°C | 25.0°C | 23.5°C | 27.4°C | 22.6°C | 24 mm | 75% | 6.4 m/s | 6.7 |
| 1987 | 26.3°C | 24.7°C | 23.1°C | 28.5°C | 22.2°C | 40 mm | 75% | 5.5 m/s | 7.1 |
| 1986 | 26.0°C | 24.6°C | 23.2°C | 27.2°C | 21.8°C | 23 mm | 78% | 6.7 m/s | 6.7 |
| 1985 | 25.7°C | 24.2°C | 22.6°C | 26.8°C | 21.4°C | 22 mm | 77% | 5.1 m/s | 6.8 |
| 1984 | 26.1°C | 24.7°C | 23.3°C | 26.9°C | 22.7°C | 22 mm | 75% | 6.4 m/s | 6.6 |
| 1983 ❄️ | 25.5°C | 24.1°C | 22.7°C | 26.2°C | 21.8°C | 20 mm | 77% | 6.5 m/s | — |
| 1982 | 26.4°C | 24.9°C | 23.4°C | 27.3°C | 21.3°C | 34 mm | 79% | 3.8 m/s | — |
| 1981 | 26.7°C | 25.2°C | 23.8°C | 27.2°C | 23.1°C | 27 mm | 75% | 6.4 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 26.8°C with lows near 23.8°C (mean 25.3°C), based on 45 years of NASA POWER data.
June averages 28 mm of rainfall in Waipahu, one of the drier months. The wettest on record was 102 mm in 2019.
The hottest June reached 29.5°C in 2015. The coldest dipped to 21.3°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 1.2°C. Daytime highs moved from 26.1°C to 27.5°C and overnight lows from 23.2°C to 24.2°C over the same span.
June is one of the warmer months of the year in Waipahu and one of the drier months, so plan for around 26.8°C daytime highs and 23.8°C at night.
Not quite — June is the 8th coolest month in Waipahu, averaging 25.3°C.
For June in Waipahu, pack light layers you can adjust through the day, with typical highs of 26.8°C and lows of 23.8°C.
Relative humidity in June averages 74% — moderately humid.
Average wind speed in June is 6.1 m/s. The windiest June on record averaged 7.3 m/s (1997).
The wettest June on record was 2019 with 102 mm. On average, June sees 28 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 June, 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 June specifically, along with year-by-year records and how the month has changed over the decades.
