June is one of the warmer months of the year in Chatham, with average highs near 23.8°C and lows around 14.2°C (mean 19°C). It is a relatively wet time of year, averaging 70 mm of rainfall and 73% relative humidity across the period.
June is one of the warmer months of the year in Chatham. Across 45 years of records, the warmest June in Chatham was 2005 — when the month averaged 22.4°C — while the coldest was 1985 at 15.1°C. Typical June days reach 23.8°C with nights near 14.2°C. The long-term trend is warming, about 0.7°C per decade.
June is a relatively wet time of year in Chatham, averaging 70 mm of rainfall. The wettest June on record was 1986 with 146 mm, while the driest was 2007 at 22 mm.
Relative humidity in Chatham during June averages 73%. The most humid June was 1989 at 80%, and the least humid was 2007 at 62%.
June receives about 6.2 kWh/m²/day of solar energy in Chatham. The sunniest June was 2020 at 7.3 kWh/m²/day, and the cloudiest was 1996 at 5.3.
Average wind speed in Chatham during June is 3.1 m/s. The windiest June was 1990 at 3.8 m/s, while the calmest was 1989 at 2.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 17.3°C | 19.0°C | 19.3°C | 19.2°C | 20.8°C | +3.5°C |
| Avg High | 22.2°C | 24.0°C | 24.0°C | 23.8°C | 25.8°C | +3.6°C |
| Avg Low | 12.5°C | 14.0°C | 14.5°C | 14.6°C | 15.7°C | +3.2°C |
| Avg Rain | 93 mm | 55 mm | 65 mm | 87 mm | 44 mm | -49 mm |
June temperatures in Chatham have risen by about 3.9°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 3.9°C (2003) to a record high of 34.2°C (1994).
Rainfall in June is a relatively wet time of year, averaging 70 mm, with a wettest year of 146 mm.
One of the best times to visit Chatham
June is one of the best times to visit Chatham. Expect days averaging 23.8°C and nights around 14.2°C (mean 19°C) — warmer than Chatham's yearly average — with moderate rainfall (70 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 | 25.7°C | 21.0°C | 16.3°C | 31.8°C | 6.2°C | 63 mm | 72% | 3.1 m/s | 6 |
| 2024 | 26.0°C | 21.1°C | 16.2°C | 31.7°C | 10.1°C | 66 mm | 70% | 3.1 m/s | 6 |
| 2023 | 24.9°C | 19.8°C | 14.8°C | 30.7°C | 10.2°C | 45 mm | 63% | 3.2 m/s | 6.1 |
| 2022 | 25.7°C | 20.2°C | 14.7°C | 32.1°C | 8.5°C | 26 mm | 62% | 3.3 m/s | 6.8 |
| 2021 | 27.0°C | 22.2°C | 17.4°C | 31.6°C | 10.5°C | 35 mm | 67% | 3.3 m/s | 6.1 |
| 2020 | 25.7°C | 20.4°C | 15.0°C | 30.3°C | 7.8°C | 25 mm | 66% | 3 m/s | 7.3 |
| 2019 | 22.5°C | 17.8°C | 13.1°C | 28.0°C | 6.2°C | 98 mm | 77% | 2.9 m/s | 6 |
| 2018 | 23.7°C | 19.3°C | 14.8°C | 29.4°C | 8.4°C | 98 mm | 78% | 3.2 m/s | 5.9 |
| 2017 | 23.7°C | 19.3°C | 14.9°C | 28.0°C | 9.9°C | 92 mm | 78% | 3.4 m/s | 6.4 |
| 2016 | 24.7°C | 19.7°C | 14.7°C | 30.3°C | 8.4°C | 42 mm | 70% | 3.1 m/s | 6.9 |
| 2015 | 22.5°C | 18.0°C | 13.5°C | 27.0°C | 6.4°C | 130 mm | 80% | 2.9 m/s | 5.6 |
| 2014 | 23.9°C | 19.4°C | 14.9°C | 28.4°C | 8.9°C | 106 mm | 77% | 2.8 m/s | 6.2 |
| 2013 | 22.6°C | 18.4°C | 14.2°C | 27.8°C | 7.9°C | 106 mm | 79% | 2.9 m/s | 5.9 |
| 2012 | 25.2°C | 20.3°C | 15.4°C | 30.5°C | 9.9°C | 66 mm | 71% | 3.3 m/s | 6.7 |
| 2011 | 23.6°C | 19.0°C | 14.5°C | 26.9°C | 9.1°C | 69 mm | 77% | 3.1 m/s | 6.2 |
| 2010 | 25.4°C | 20.6°C | 15.8°C | 29.0°C | 9.4°C | 60 mm | 72% | 3.4 m/s | 6.1 |
| 2009 | 23.5°C | 18.5°C | 13.5°C | 30.3°C | 5.0°C | 59 mm | 72% | 2.8 m/s | 5.9 |
| 2008 | 24.2°C | 20.1°C | 15.9°C | 29.1°C | 10.5°C | 85 mm | 77% | 3.4 m/s | 5.6 |
| 2007 | 26.5°C | 21.0°C | 15.6°C | 31.5°C | 8.9°C | 22 mm | 62% | 3 m/s | 6.9 |
| 2006 | 24.3°C | 19.5°C | 14.6°C | 28.6°C | 8.6°C | 65 mm | 69% | 3 m/s | 6.4 |
| 2005 🔥 | 27.1°C | 22.4°C | 17.6°C | 32.5°C | 12.1°C | 62 mm | 71% | 3 m/s | 6.3 |
| 2004 | 22.5°C | 17.9°C | 13.4°C | 26.9°C | 6.7°C | 55 mm | 76% | 3.2 m/s | 6.2 |
| 2003 | 22.0°C | 16.9°C | 11.7°C | 28.4°C | 3.9°C | 64 mm | 76% | 3.1 m/s | 5.9 |
| 2002 | 23.6°C | 18.7°C | 13.8°C | 30.6°C | 7.2°C | 33 mm | 77% | 2.7 m/s | 6.1 |
| 2001 | 23.3°C | 18.7°C | 14.1°C | 28.6°C | 6.1°C | 71 mm | 77% | 2.5 m/s | 6.4 |
| 2000 | 23.0°C | 18.8°C | 14.6°C | 27.1°C | 9.1°C | 131 mm | 77% | 3.7 m/s | 5.6 |
| 1999 | 24.3°C | 19.6°C | 14.8°C | 30.3°C | 6.4°C | 83 mm | 70% | 2.7 m/s | 6.3 |
| 1998 | 24.8°C | 19.9°C | 15.1°C | 31.4°C | 6.8°C | 52 mm | 69% | 3.2 m/s | 5.9 |
| 1997 | 24.0°C | 19.2°C | 14.4°C | 29.5°C | 9.4°C | 48 mm | 72% | 3.1 m/s | 6.3 |
| 1996 | 23.7°C | 19.0°C | 14.4°C | 31.0°C | 7.9°C | 76 mm | 77% | 2.9 m/s | 5.3 |
| 1995 | 25.4°C | 20.3°C | 15.2°C | 33.6°C | 8.5°C | 38 mm | 70% | 2.6 m/s | 6 |
| 1994 | 25.2°C | 19.6°C | 14.0°C | 34.2°C | 4.6°C | 71 mm | 68% | 2.9 m/s | 6 |
| 1993 | 22.1°C | 17.2°C | 12.3°C | 27.0°C | 4.9°C | 72 mm | 75% | 3.2 m/s | 5.5 |
| 1992 | 22.2°C | 16.7°C | 11.1°C | 27.7°C | 4.5°C | 41 mm | 67% | 2.8 m/s | 6.5 |
| 1991 | 25.9°C | 20.6°C | 15.2°C | 30.6°C | 8.3°C | 28 mm | 67% | 2.8 m/s | 6.7 |
| 1990 | 22.6°C | 17.9°C | 13.2°C | 27.6°C | 6.8°C | 43 mm | 74% | 3.8 m/s | 5.8 |
| 1989 | 22.7°C | 18.3°C | 13.9°C | 28.4°C | 8.4°C | 95 mm | 80% | 2.4 m/s | 5.5 |
| 1988 | 24.2°C | 18.2°C | 12.1°C | 33.9°C | 6.1°C | 24 mm | 62% | 3.6 m/s | 7.2 |
| 1987 | 23.4°C | 18.5°C | 13.7°C | 28.9°C | 5.8°C | 107 mm | 76% | 2.9 m/s | 6.3 |
| 1986 🌧️ | 21.2°C | 16.2°C | 11.3°C | 25.6°C | 6.1°C | 146 mm | 79% | 3.1 m/s | 6.2 |
| 1985 ❄️ | 19.9°C | 15.1°C | 10.3°C | 24.5°C | 5.8°C | 71 mm | 75% | 3.1 m/s | 6.7 |
| 1984 | 22.2°C | 17.6°C | 13.0°C | 25.3°C | 7.1°C | 90 mm | 80% | 3.2 m/s | 5.9 |
| 1983 | 22.9°C | 18.0°C | 13.1°C | 27.9°C | 5.7°C | 91 mm | 77% | 2.6 m/s | — |
| 1982 | 20.0°C | 15.4°C | 10.8°C | 25.0°C | 6.4°C | 115 mm | 80% | 2.8 m/s | — |
| 1981 | 23.0°C | 18.7°C | 14.4°C | 27.7°C | 8.2°C | 95 mm | 77% | 3.4 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 23.8°C with lows near 14.2°C (mean 19°C), based on 45 years of NASA POWER data.
June averages 70 mm of rainfall in Chatham, a relatively wet time of year. The wettest on record was 146 mm in 1986.
The hottest June reached 34.2°C in 1994. The coldest dipped to 3.9°C in 2003.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 3.9°C. Daytime highs moved from 21.6°C to 25.9°C and overnight lows from 12.3°C to 15.9°C over the same span.
June is one of the warmer months of the year in Chatham and a relatively wet time of year, so plan for around 23.8°C daytime highs and 14.2°C at night.
Not quite — June is the 10th coolest month in Chatham, averaging 19°C.
For June in Chatham, pack light layers you can adjust through the day, with typical highs of 23.8°C and lows of 14.2°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 73% — moderately humid.
Average wind speed in June is 3.1 m/s. The windiest June on record averaged 3.8 m/s (1990).
The wettest June on record was 1986 with 146 mm. On average, June sees 70 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 Chatham 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.
