June is one of the warmer months of the year in Olympia, with average highs near 19.4°C and lows around 9.3°C (mean 14.4°C). It is one of the drier months, averaging 61 mm of rainfall and 82% relative humidity across the period.
June is one of the warmer months of the year in Olympia. Across 45 years of records, the warmest June in Olympia was 2021 — when the month averaged 17.1°C — while the coldest was 2012 at 12.4°C. Typical June days reach 19.4°C with nights near 9.3°C. The long-term June temperature trend is broadly flat.
June is one of the drier months in Olympia, averaging 61 mm of rainfall. The wettest June on record was 1981 with 123 mm, while the driest was 1987 at 15 mm.
Relative humidity in Olympia during June averages 82%. The most humid June was 1999 at 86%, and the least humid was 1987 at 79%.
June receives about 5.7 kWh/m²/day of solar energy in Olympia. The sunniest June was 2015 at 7.2 kWh/m²/day, and the cloudiest was 2012 at 4.7.
Average wind speed in Olympia during June is 0.2 m/s. The windiest Junes were 2023, 2024 and 2025, among others at 0.2 m/s, while the calmest were 2023, 2024 and 2025, among others at 0.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 14.3°C | 14.0°C | 14.4°C | 14.3°C | 14.8°C | +0.5°C |
| Avg High | 19.6°C | 18.9°C | 19.5°C | 19.3°C | 20.0°C | +0.4°C |
| Avg Low | 8.9°C | 9.2°C | 9.3°C | 9.4°C | 9.6°C | +0.7°C |
| Avg Rain | 68 mm | 66 mm | 52 mm | 54 mm | 71 mm | +3 mm |
June temperatures in Olympia have risen by about 1.1°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 2.9°C (1991) to a record high of 44.2°C (2021).
Rainfall in June is one of the drier months, averaging 61 mm, with a wettest year of 123 mm.
One of the best times to visit Olympia
June is one of the best times to visit Olympia. Expect days averaging 19.4°C and nights around 9.3°C (mean 14.4°C) — warmer than Olympia's yearly average — with moderate rainfall (61 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 | 19.9°C | 14.5°C | 9.1°C | 29.9°C | 6.8°C | 25 mm | 83% | 0.2 m/s | 6.4 |
| 2024 | 18.8°C | 13.8°C | 8.7°C | 26.4°C | 5.8°C | 94 mm | 84% | 0.2 m/s | 6.1 |
| 2023 | 20.3°C | 14.7°C | 9.1°C | 26.9°C | 5.8°C | 29 mm | 81% | 0.2 m/s | 6.6 |
| 2022 | 19.1°C | 14.4°C | 9.8°C | 30.9°C | 6.8°C | 109 mm | 84% | 0.2 m/s | 5.1 |
| 2021 🔥 | 23.0°C | 17.1°C | 11.3°C | 44.2°C | 6.3°C | 80 mm | 80% | 0.2 m/s | 6.8 |
| 2020 | 18.9°C | 14.4°C | 9.8°C | 28.3°C | 7.3°C | 91 mm | 84% | 0.2 m/s | 5.6 |
| 2019 | 20.0°C | 14.7°C | 9.3°C | 32.2°C | 6.8°C | 24 mm | 81% | 0.2 m/s | 6.1 |
| 2018 | 19.3°C | 14.3°C | 9.4°C | 28.5°C | 5.1°C | 43 mm | 82% | 0.2 m/s | 5.5 |
| 2017 | 20.0°C | 14.7°C | 9.4°C | 31.1°C | 6.7°C | 70 mm | 82% | 0.2 m/s | 5.9 |
| 2016 | 20.2°C | 14.9°C | 9.7°C | 30.9°C | 6.0°C | 56 mm | 82% | 0.2 m/s | 6.1 |
| 2015 | 22.8°C | 16.8°C | 10.8°C | 29.9°C | 7.4°C | 15 mm | 79% | 0.2 m/s | 7.2 |
| 2014 | 19.2°C | 14.4°C | 9.7°C | 23.7°C | 7.6°C | 38 mm | 84% | 0.2 m/s | 5.7 |
| 2013 | 19.9°C | 15.1°C | 10.2°C | 30.6°C | 7.5°C | 67 mm | 84% | 0.2 m/s | 5.7 |
| 2012 ❄️ | 16.6°C | 12.4°C | 8.2°C | 22.7°C | 4.2°C | 96 mm | 86% | 0.2 m/s | 4.7 |
| 2011 | 17.5°C | 13.0°C | 8.5°C | 24.9°C | 6.5°C | 36 mm | 83% | 0.2 m/s | 5.1 |
| 2010 | 17.1°C | 12.7°C | 8.3°C | 23.0°C | 6.3°C | 97 mm | 85% | 0.2 m/s | 5 |
| 2009 | 20.6°C | 15.2°C | 9.8°C | 29.6°C | 6.3°C | 17 mm | 81% | 0.2 m/s | 6 |
| 2008 | 17.3°C | 12.7°C | 8.0°C | 29.2°C | 5.6°C | 61 mm | 83% | 0.2 m/s | 5.3 |
| 2007 | 18.2°C | 13.5°C | 8.9°C | 28.3°C | 5.7°C | 54 mm | 83% | 0.2 m/s | 5.5 |
| 2006 | 20.3°C | 15.3°C | 10.3°C | 33.3°C | 7.4°C | 59 mm | 83% | 0.2 m/s | 6 |
| 2005 | 18.7°C | 14.0°C | 9.3°C | 27.0°C | 6.5°C | 48 mm | 83% | 0.2 m/s | 5.1 |
| 2004 | 21.1°C | 15.6°C | 10.0°C | 27.5°C | 6.1°C | 36 mm | 81% | 0.2 m/s | 6.5 |
| 2003 | 21.0°C | 15.5°C | 9.9°C | 33.2°C | 6.8°C | 17 mm | 80% | 0.2 m/s | 6.3 |
| 2002 | 20.2°C | 14.8°C | 9.4°C | 34.7°C | 5.1°C | 55 mm | 82% | 0.2 m/s | 6.1 |
| 2001 | 17.4°C | 12.8°C | 8.1°C | 23.6°C | 5.0°C | 80 mm | 83% | 0.2 m/s | 5.4 |
| 2000 | 19.9°C | 14.6°C | 9.4°C | 33.0°C | 6.0°C | 95 mm | 82% | 0.2 m/s | 5.7 |
| 1999 | 16.7°C | 12.7°C | 8.6°C | 27.1°C | 5.3°C | 65 mm | 86% | 0.2 m/s | 5.2 |
| 1998 | 19.4°C | 14.5°C | 9.7°C | 25.8°C | 7.0°C | 44 mm | 84% | 0.2 m/s | 5.6 |
| 1997 | 18.9°C | 14.1°C | 9.3°C | 27.5°C | 6.6°C | 95 mm | 84% | 0.2 m/s | 5.5 |
| 1996 | 18.6°C | 13.5°C | 8.5°C | 26.9°C | 6.2°C | 39 mm | 82% | 0.2 m/s | 5.7 |
| 1995 | 19.9°C | 14.7°C | 9.4°C | 32.9°C | 6.9°C | 58 mm | 82% | 0.2 m/s | 5.4 |
| 1994 | 18.5°C | 13.6°C | 8.6°C | 27.5°C | 5.9°C | 73 mm | 83% | 0.2 m/s | 5.2 |
| 1993 | 19.0°C | 14.1°C | 9.3°C | 25.1°C | 6.3°C | 91 mm | 83% | 0.2 m/s | 4.8 |
| 1992 | 21.5°C | 16.0°C | 10.6°C | 33.1°C | 6.8°C | 44 mm | 81% | 0.2 m/s | 5.6 |
| 1991 | 17.2°C | 12.7°C | 8.1°C | 23.1°C | 2.9°C | 59 mm | 84% | 0.2 m/s | 4.9 |
| 1990 | 18.9°C | 14.1°C | 9.4°C | 27.3°C | 6.9°C | 98 mm | 84% | 0.2 m/s | 4.8 |
| 1989 | 20.9°C | 15.4°C | 9.9°C | 30.2°C | 6.8°C | 65 mm | 81% | 0.2 m/s | 5.6 |
| 1988 | 19.1°C | 13.6°C | 8.1°C | 31.2°C | 5.7°C | 56 mm | 81% | 0.2 m/s | 5.2 |
| 1987 | 21.3°C | 15.1°C | 8.9°C | 31.0°C | 4.3°C | 15 mm | 79% | 0.2 m/s | 6.1 |
| 1986 | 21.1°C | 15.6°C | 10.0°C | 30.3°C | 6.9°C | 36 mm | 79% | 0.2 m/s | 5.4 |
| 1985 | 19.3°C | 13.9°C | 8.5°C | 31.3°C | 5.0°C | 68 mm | 79% | 0.2 m/s | 6 |
| 1984 | 18.1°C | 13.1°C | 8.0°C | 25.2°C | 4.5°C | 104 mm | 82% | 0.2 m/s | 5 |
| 1983 | 18.2°C | 13.6°C | 9.0°C | 25.5°C | 6.3°C | 103 mm | 83% | 0.2 m/s | — |
| 1982 | 21.7°C | 15.7°C | 9.8°C | 35.8°C | 5.7°C | 44 mm | 79% | 0.2 m/s | — |
| 1981 🌧️ | 17.1°C | 12.7°C | 8.3°C | 23.9°C | 6.0°C | 123 mm | 85% | 0.2 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 19.4°C with lows near 9.3°C (mean 14.4°C), based on 45 years of NASA POWER data.
June averages 61 mm of rainfall in Olympia, one of the drier months. The wettest on record was 123 mm in 1981.
The hottest June reached 44.2°C in 2021. The coldest dipped to 2.9°C in 1991.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 1.1°C. Daytime highs moved from 18.9°C to 20.2°C and overnight lows from 8.7°C to 9.6°C over the same span.
June is one of the warmer months of the year in Olympia and one of the drier months, so plan for around 19.4°C daytime highs and 9.3°C at night.
Not quite — June is the 9th coolest month in Olympia, averaging 14.4°C.
For June in Olympia, pack light layers you can adjust through the day, with typical highs of 19.4°C and lows of 9.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 82% — quite humid.
Average wind speed in June is 0.2 m/s. The windiest June on record averaged 0.2 m/s (1981).
The wettest June on record was 1981 with 123 mm. On average, June sees 61 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 Olympia 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.
