June is one of the warmer months of the year in Irvine, with average highs near 25.2°C and lows around 14.8°C (mean 20°C). It is one of the drier months, averaging 2 mm of rainfall and 65% relative humidity across the period.
June is one of the warmer months of the year in Irvine. Across 45 years of records, the warmest June in Irvine was 1981 — when the month averaged 23.6°C — while the coldest was 2023 at 17.7°C. Typical June days reach 25.2°C with nights near 14.8°C. The long-term June temperature trend is broadly flat.
June is one of the drier months in Irvine, averaging 2 mm of rainfall. The wettest June on record was 1993 with 20 mm, while the driest were 2013, 2014 and 2018, among others at 0 mm.
Relative humidity in Irvine during June averages 65%. The most humid June was 2023 at 78%, and the least humid was 1981 at 46%.
June receives about 7.2 kWh/m²/day of solar energy in Irvine. The sunniest Junes were 2008 and 2014 at 8 kWh/m²/day, and the cloudiest was 2003 at 6.
Average wind speed in Irvine during June is 2.3 m/s. The windiest June was 1997 at 2.8 m/s, while the calmest was 2006 at 2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 20.5°C | 19.7°C | 20.0°C | 19.8°C | 20.1°C | -0.4°C |
| Avg High | 26.2°C | 24.7°C | 25.1°C | 25.1°C | 25.0°C | -1.2°C |
| Avg Low | 14.9°C | 14.7°C | 15.0°C | 14.5°C | 15.2°C | +0.3°C |
| Avg Rain | 1 mm | 6 mm | 1 mm | 1 mm | 1 mm | +1 mm |
June temperatures in Irvine have fallen by about 0.5°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 9.7°C (2011) to a record high of 37.5°C (1990).
Rainfall in June is one of the drier months, averaging 2 mm, with a wettest year of 20 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.2°C per decade while lows rose 0°C per decade, narrowing the gap between day and night.
A good time to visit Irvine
June is a good time to visit Irvine, with days averaging 25.2°C and nights around 14.8°C (mean 20°C, warmer than Irvine's yearly average) and low rainfall. July and September 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 | 25.2°C | 20.1°C | 15.0°C | 30.2°C | 13.3°C | 1 mm | 68% | 2.4 m/s | 7.3 |
| 2024 | 24.6°C | 19.8°C | 15.0°C | 30.1°C | 11.6°C | 1 mm | 71% | 2.2 m/s | 7.4 |
| 2023 ❄️ | 21.6°C | 17.7°C | 13.7°C | 27.9°C | 12.1°C | 2 mm | 78% | 2.4 m/s | 6.7 |
| 2022 | 27.7°C | 22.1°C | 16.6°C | 33.6°C | 13.0°C | 1 mm | 58% | 2.4 m/s | 7.9 |
| 2021 | 26.2°C | 20.9°C | 15.5°C | 32.4°C | 11.8°C | 0 mm | 59% | 2.3 m/s | 7.4 |
| 2020 | 24.7°C | 19.9°C | 15.2°C | 31.9°C | 12.2°C | 2 mm | 69% | 2.4 m/s | 7.2 |
| 2019 | 24.0°C | 19.2°C | 14.3°C | 30.9°C | 11.9°C | 2 mm | 72% | 2.1 m/s | 6.5 |
| 2018 | 25.3°C | 19.8°C | 14.2°C | 28.4°C | 12.2°C | 0 mm | 63% | 2.4 m/s | 7.7 |
| 2017 | 25.6°C | 20.4°C | 15.2°C | 32.2°C | 12.4°C | 0 mm | 64% | 2.2 m/s | 7.5 |
| 2016 | 27.0°C | 21.5°C | 16.1°C | 36.1°C | 12.7°C | 0 mm | 59% | 2.3 m/s | 7.2 |
| 2015 | 26.7°C | 21.5°C | 16.3°C | 31.2°C | 12.3°C | 2 mm | 61% | 2.2 m/s | 7.1 |
| 2014 | 26.1°C | 20.3°C | 14.6°C | 29.6°C | 12.5°C | 0 mm | 64% | 2.4 m/s | 8 |
| 2013 | 25.4°C | 20.0°C | 14.7°C | 33.8°C | 11.9°C | 0 mm | 65% | 2.3 m/s | 7.5 |
| 2012 | 24.4°C | 18.9°C | 13.3°C | 28.4°C | 11.1°C | 0 mm | 63% | 2.4 m/s | 7.8 |
| 2011 | 22.9°C | 18.0°C | 13.1°C | 28.0°C | 9.7°C | 1 mm | 70% | 2.2 m/s | 7.4 |
| 2010 | 23.2°C | 18.3°C | 13.3°C | 27.5°C | 11.5°C | 0 mm | 72% | 2.3 m/s | 7.2 |
| 2009 | 23.3°C | 19.0°C | 14.7°C | 30.7°C | 13.1°C | 1 mm | 70% | 2.5 m/s | 6.7 |
| 2008 | 26.7°C | 21.0°C | 15.4°C | 34.6°C | 10.8°C | 0 mm | 60% | 2.2 m/s | 8 |
| 2007 | 25.5°C | 19.8°C | 14.2°C | 30.0°C | 11.0°C | 0 mm | 61% | 2.2 m/s | 7.8 |
| 2006 | 27.4°C | 22.2°C | 17.0°C | 33.7°C | 13.9°C | 1 mm | 61% | 2 m/s | 7.1 |
| 2005 | 23.1°C | 18.6°C | 14.1°C | 28.4°C | 11.5°C | 0 mm | 73% | 2.3 m/s | 7.2 |
| 2004 | 24.4°C | 19.4°C | 14.4°C | 28.1°C | 12.5°C | 0 mm | 69% | 2.3 m/s | 7.1 |
| 2003 | 23.2°C | 18.7°C | 14.2°C | 30.2°C | 13.5°C | 1 mm | 73% | 2.4 m/s | 6 |
| 2002 | 24.8°C | 19.5°C | 14.1°C | 31.1°C | 11.8°C | 0 mm | 65% | 2.3 m/s | 7.6 |
| 2001 | 26.4°C | 21.2°C | 16.0°C | 30.5°C | 12.4°C | 0 mm | 61% | 2.2 m/s | 7.6 |
| 2000 | 26.5°C | 21.0°C | 15.5°C | 31.8°C | 12.4°C | 5 mm | 66% | 2.3 m/s | 7.7 |
| 1999 | 23.7°C | 18.7°C | 13.7°C | 29.8°C | 10.7°C | 10 mm | 66% | 2.4 m/s | 7.4 |
| 1998 | 21.9°C | 17.9°C | 13.9°C | 26.9°C | 12.1°C | 2 mm | 78% | 2.5 m/s | 6.9 |
| 1997 | 24.6°C | 19.9°C | 15.2°C | 29.1°C | 13.7°C | 2 mm | 72% | 2.8 m/s | 7.3 |
| 1996 | 25.7°C | 20.5°C | 15.2°C | 31.9°C | 12.3°C | 0 mm | 64% | 2.3 m/s | 7.9 |
| 1995 | 23.3°C | 18.5°C | 13.6°C | 29.8°C | 10.8°C | 15 mm | 72% | 2.3 m/s | 6.6 |
| 1994 | 26.6°C | 21.3°C | 16.0°C | 34.7°C | 12.2°C | 1 mm | 63% | 2.1 m/s | 7.3 |
| 1993 🌧️ | 26.0°C | 20.9°C | 15.8°C | 33.2°C | 12.2°C | 20 mm | 67% | 2.1 m/s | 7.3 |
| 1992 | 24.7°C | 19.6°C | 14.6°C | 29.3°C | 12.4°C | 0 mm | 69% | 2.4 m/s | 6.8 |
| 1991 | 22.7°C | 17.8°C | 12.8°C | 28.4°C | 9.8°C | 0 mm | 70% | 2.3 m/s | 6.9 |
| 1990 | 27.6°C | 21.8°C | 16.1°C | 37.5°C | 11.9°C | 9 mm | 56% | 2.2 m/s | 7.5 |
| 1989 | 25.8°C | 20.3°C | 14.8°C | 32.0°C | 12.6°C | 0 mm | 61% | 2.4 m/s | 6.9 |
| 1988 | 25.3°C | 19.6°C | 14.0°C | 30.0°C | 9.9°C | 0 mm | 62% | 2.4 m/s | 6.5 |
| 1987 | 26.8°C | 20.9°C | 15.1°C | 30.4°C | 11.7°C | 2 mm | 58% | 2.2 m/s | 7 |
| 1986 | 26.6°C | 20.9°C | 15.1°C | 31.7°C | 12.7°C | 0 mm | 60% | 2.1 m/s | 7.2 |
| 1985 | 27.1°C | 21.3°C | 15.4°C | 32.3°C | 11.2°C | 1 mm | 54% | 2.1 m/s | 7.3 |
| 1984 | 27.0°C | 21.3°C | 15.5°C | 32.0°C | 13.2°C | 2 mm | 57% | 2.5 m/s | 6.4 |
| 1983 | 23.8°C | 18.8°C | 13.8°C | 29.7°C | 12.1°C | 0 mm | 71% | 2.1 m/s | — |
| 1982 | 22.9°C | 17.9°C | 13.0°C | 26.4°C | 10.5°C | 2 mm | 70% | 2.4 m/s | — |
| 1981 🔥 | 30.1°C | 23.6°C | 17.1°C | 36.3°C | 12.5°C | 0 mm | 46% | 2.3 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 25.2°C with lows near 14.8°C (mean 20°C), based on 45 years of NASA POWER data.
June averages 2 mm of rainfall in Irvine, one of the drier months. The wettest on record was 20 mm in 1993.
The hottest June reached 37.5°C in 1990. The coldest dipped to 9.7°C in 2011.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have fallen by about 0.5°C — but days and nights have moved in opposite directions. Overnight lows rose from 15°C to 15.2°C while daytime highs eased from 26.2°C to 25.1°C, narrowing the gap between day and night.
June is one of the warmer months of the year in Irvine and one of the drier months, so plan for around 25.2°C daytime highs and 14.8°C at night.
Not quite — June is the 8th coolest month in Irvine, averaging 20°C.
For June in Irvine, pack light layers you can adjust through the day, with typical highs of 25.2°C and lows of 14.8°C.
Relative humidity in June averages 65% — moderately humid.
Average wind speed in June is 2.3 m/s. The windiest June on record averaged 2.8 m/s (1997).
The wettest June on record was 1993 with 20 mm. On average, June sees 2 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 Irvine 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.
