June is close to Hilo's year-round average, with average highs near 24°C and lows around 20°C (mean 22°C). It is one of the drier months, averaging 86 mm of rainfall and 81% relative humidity across the period.
June is close to Hilo's year-round average. Across 45 years of records, the warmest June in Hilo was 1996 — when the month averaged 23.3°C — while the coldest were 1999 and 2011 at 21°C. Typical June days reach 24°C with nights near 20°C. The long-term June temperature trend is broadly flat.
June is one of the drier months in Hilo, averaging 86 mm of rainfall. The wettest June on record was 2002 with 263 mm, while the driest was 1994 at 2 mm.
Relative humidity in Hilo during June averages 81%. The most humid June was 2016 at 85%, and the least humid was 1995 at 74%.
June receives about 6.1 kWh/m²/day of solar energy in Hilo. The sunniest Junes were 1999 and 2024 at 6.6 kWh/m²/day, and the cloudiest was 1989 at 5.3.
Average wind speed in Hilo during June is 4.2 m/s. The windiest June was 1997 at 5.1 m/s, while the calmest was 1982 at 3.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 21.9°C | 22.3°C | 21.8°C | 21.9°C | 22.2°C | +0.3°C |
| Avg High | 23.9°C | 24.4°C | 23.8°C | 23.8°C | 24.2°C | +0.3°C |
| Avg Low | 19.9°C | 20.1°C | 19.9°C | 20.0°C | 20.1°C | +0.2°C |
| Avg Rain | 62 mm | 29 mm | 146 mm | 116 mm | 65 mm | +4 mm |
June temperatures in Hilo have risen by about 0.4°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 17.8°C (1998) to a record high of 27°C (1996).
Rainfall in June is one of the drier months, averaging 86 mm, with a wettest year of 263 mm.
One of the best times to visit Hilo
June is one of the best times to visit Hilo. Expect days averaging 24°C and nights around 20°C (mean 22°C) — close to Hilo's yearly average — with higher rainfall (86 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 | 24.3°C | 22.4°C | 20.4°C | 25.3°C | 19.7°C | 69 mm | 82% | 4.1 m/s | 6.2 |
| 2024 | 24.1°C | 22.1°C | 20.1°C | 25.7°C | 19.2°C | 59 mm | 83% | 3.9 m/s | 6.6 |
| 2023 | 23.6°C | 21.8°C | 20.0°C | 24.5°C | 19.4°C | 124 mm | 84% | 4.1 m/s | 6.3 |
| 2022 | 24.2°C | 22.1°C | 20.0°C | 25.2°C | 19.1°C | 78 mm | 82% | 3.8 m/s | 6.3 |
| 2021 | 24.4°C | 22.2°C | 19.9°C | 25.6°C | 19.1°C | 29 mm | 80% | 3.9 m/s | 6.5 |
| 2020 | 24.3°C | 22.3°C | 20.3°C | 25.5°C | 19.2°C | 31 mm | 81% | 4 m/s | 6.5 |
| 2019 | 25.0°C | 22.9°C | 20.9°C | 26.2°C | 19.6°C | 57 mm | 83% | 3.8 m/s | 6.1 |
| 2018 | 24.2°C | 22.3°C | 20.4°C | 25.0°C | 19.6°C | 85 mm | 84% | 4 m/s | 5.9 |
| 2017 | 24.2°C | 22.3°C | 20.3°C | 25.0°C | 19.1°C | 83 mm | 83% | 3.8 m/s | 6.2 |
| 2016 | 24.0°C | 22.2°C | 20.4°C | 25.7°C | 19.4°C | 205 mm | 85% | 3.9 m/s | 5.8 |
| 2015 | 24.4°C | 22.4°C | 20.5°C | 25.8°C | 19.3°C | 88 mm | 84% | 3.8 m/s | 5.9 |
| 2014 | 23.8°C | 21.9°C | 20.0°C | 25.3°C | 19.3°C | 73 mm | 82% | 4.2 m/s | 6.1 |
| 2013 | 23.6°C | 21.7°C | 19.9°C | 24.2°C | 19.2°C | 85 mm | 82% | 4.4 m/s | 6.2 |
| 2012 | 22.9°C | 21.1°C | 19.2°C | 24.0°C | 18.5°C | 125 mm | 84% | 4.5 m/s | 6.1 |
| 2011 | 22.6°C | 21.0°C | 19.5°C | 23.5°C | 18.8°C | 213 mm | 85% | 4.2 m/s | 6 |
| 2010 | 23.1°C | 21.2°C | 19.3°C | 24.1°C | 18.4°C | 148 mm | 83% | 4.2 m/s | 6.4 |
| 2009 | 23.9°C | 22.0°C | 20.1°C | 25.0°C | 19.2°C | 205 mm | 84% | 4.3 m/s | 6 |
| 2008 | 23.3°C | 21.3°C | 19.3°C | 25.9°C | 18.5°C | 159 mm | 84% | 3.9 m/s | 5.9 |
| 2007 | 23.6°C | 21.7°C | 19.8°C | 24.5°C | 18.8°C | 104 mm | 82% | 4.3 m/s | 6.2 |
| 2006 | 23.8°C | 21.8°C | 19.8°C | 24.5°C | 18.9°C | 133 mm | 82% | 4.1 m/s | 6.4 |
| 2005 | 23.6°C | 21.8°C | 20.1°C | 24.2°C | 19.4°C | 263 mm | 83% | 4.6 m/s | 6 |
| 2004 | 23.9°C | 22.2°C | 20.4°C | 24.7°C | 20.0°C | 162 mm | 84% | 4.3 m/s | 5.9 |
| 2003 | 24.0°C | 22.0°C | 20.0°C | 25.0°C | 19.4°C | 118 mm | 82% | 4 m/s | 6 |
| 2002 🌧️ | 23.6°C | 21.8°C | 20.0°C | 24.5°C | 19.5°C | 263 mm | 84% | 4.3 m/s | 6.2 |
| 2001 | 23.9°C | 21.7°C | 19.6°C | 26.4°C | 18.8°C | 44 mm | 80% | 4.2 m/s | 6 |
| 2000 | 24.5°C | 22.1°C | 19.7°C | 25.8°C | 18.6°C | 9 mm | 78% | 4.2 m/s | 6 |
| 1999 ❄️ | 23.3°C | 21.0°C | 18.8°C | 24.6°C | 18.0°C | 40 mm | 77% | 4.5 m/s | 6.6 |
| 1998 | 23.5°C | 21.5°C | 19.5°C | 24.2°C | 17.8°C | 72 mm | 79% | 4.8 m/s | 6.2 |
| 1997 | 25.3°C | 23.2°C | 21.1°C | 25.9°C | 20.3°C | 14 mm | 78% | 5.1 m/s | 6.1 |
| 1996 🔥 | 25.7°C | 23.3°C | 21.0°C | 27.0°C | 19.8°C | 3 mm | 76% | 4.5 m/s | 6 |
| 1995 | 25.0°C | 22.7°C | 20.3°C | 26.9°C | 19.4°C | 3 mm | 74% | 4.5 m/s | 6 |
| 1994 | 24.5°C | 22.3°C | 20.1°C | 25.8°C | 19.0°C | 2 mm | 78% | 4.7 m/s | 6.1 |
| 1993 | 24.8°C | 22.6°C | 20.3°C | 25.5°C | 19.8°C | 2 mm | 75% | 4.7 m/s | 6.2 |
| 1992 | 25.0°C | 22.9°C | 20.7°C | 26.4°C | 20.0°C | 32 mm | 77% | 4.9 m/s | 6.1 |
| 1991 | 23.7°C | 21.7°C | 19.6°C | 24.8°C | 18.7°C | 13 mm | 80% | 4.4 m/s | 5.5 |
| 1990 | 23.2°C | 21.5°C | 19.8°C | 24.1°C | 19.1°C | 108 mm | 83% | 4.9 m/s | 5.6 |
| 1989 | 24.5°C | 22.5°C | 20.4°C | 25.8°C | 19.6°C | 62 mm | 78% | 4.5 m/s | 5.3 |
| 1988 | 23.9°C | 21.8°C | 19.8°C | 24.6°C | 19.1°C | 10 mm | 80% | 4.3 m/s | 5.7 |
| 1987 | 23.9°C | 21.9°C | 20.0°C | 25.7°C | 19.1°C | 117 mm | 83% | 4.3 m/s | 5.9 |
| 1986 | 24.0°C | 22.1°C | 20.3°C | 24.9°C | 18.7°C | 62 mm | 83% | 4.5 m/s | 5.8 |
| 1985 | 23.4°C | 21.2°C | 19.1°C | 25.1°C | 17.9°C | 38 mm | 83% | 3.7 m/s | 5.7 |
| 1984 | 23.2°C | 21.3°C | 19.5°C | 24.0°C | 18.8°C | 42 mm | 82% | 4.2 m/s | 5.9 |
| 1983 | 23.0°C | 21.1°C | 19.3°C | 23.5°C | 18.4°C | 69 mm | 83% | 4.3 m/s | — |
| 1982 | 24.9°C | 22.7°C | 20.5°C | 26.6°C | 18.9°C | 97 mm | 83% | 3.1 m/s | — |
| 1981 | 24.3°C | 22.1°C | 19.9°C | 25.4°C | 19.1°C | 57 mm | 80% | 4 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 24°C with lows near 20°C (mean 22°C), based on 45 years of NASA POWER data.
June averages 86 mm of rainfall in Hilo, one of the drier months. The wettest on record was 263 mm in 2002.
The hottest June reached 27°C in 1996. The coldest dipped to 17.8°C in 1998.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 0.4°C. Daytime highs moved from 23.8°C to 24.1°C and overnight lows from 19.7°C to 20.1°C over the same span.
June is close to Hilo's year-round average and one of the drier months, so plan for around 24°C daytime highs and 20°C at night.
Not quite — June is the 8th coolest month in Hilo, averaging 22°C.
For June in Hilo, pack light layers you can adjust through the day, with typical highs of 24°C and lows of 20°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 81% — quite humid.
Average wind speed in June is 4.2 m/s. The windiest June on record averaged 5.1 m/s (1997).
The wettest June on record was 2002 with 263 mm. On average, June sees 86 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 Hilo 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.
