Cornwall Weather in June
Average highs run from 21°C on June 1 to 25°C on June 30, and lows from 11°C to 15°C. Normal precipitation for the month is 108 mm over about 18 wet days.
June day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
June at a glance
- Average high
- 23°C
- Average low
- 13°C
- Precipitation
- 108 mm
- Reanalysis high
- 32°CJun 30, 2005
- Reanalysis low
- 3°CJun 1, 2009
- Daylight
- 15 h 24 min to 15 h 34 min
- Cloud cover
- 63%
- Humidity
- 77%
- Dew point
- 14°C
- Wind
- 9.0 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Reanalysis high | Reanalysis low | Chance wet |
|---|---|---|---|---|---|
| Jun 1 | 21°C | 11°C | 29°C 2013 | 3°C 2009 | 58% |
| Jun 2 | 21°C | 11°C | 27°C 2014 | 5°C 2003 | 58% |
| Jun 3 | 21°C | 11°C | 27°C 2014 | 4°C 2015 | 57% |
| Jun 4 | 21°C | 11°C | 27°C 2005 | 5°C 2004 | 58% |
| Jun 5 | 21°C | 11°C | 27°C 2020 | 5°C 2000 | 58% |
| Jun 6 | 22°C | 11°C | 27°C 1999 | 4°C 2007 | 58% |
| Jun 7 | 22°C | 12°C | 30°C 1999 | 6°C 1998 | 56% |
| Jun 8 | 22°C | 12°C | 30°C 2007 | 7°C 2009 | 56% |
| Jun 9 | 22°C | 12°C | 29°C 2005 | 7°C 2016 | 54% |
| Jun 10 | 22°C | 12°C | 29°C 2008 | 6°C 2016 | 53% |
| Jun 11 | 22°C | 12°C | 30°C 2012 | 6°C 2006 | 52% |
| Jun 12 | 23°C | 13°C | 30°C 1999 | 7°C 2004 | 53% |
| Jun 13 | 23°C | 13°C | 30°C 1999 | 5°C 2020 | 52% |
| Jun 14 | 23°C | 13°C | 31°C 2001 | 7°C 2016 | 50% |
| Jun 15 | 23°C | 13°C | 32°C 2001 | 7°C 1997 | 52% |
| Jun 16 | 23°C | 13°C | 31°C 1994 | 7°C 1999 | 53% |
| Jun 17 | 24°C | 14°C | 32°C 1994 | 9°C 1992 | 54% |
| Jun 18 | 24°C | 14°C | 31°C 1994 | 9°C 2013 | 54% |
| Jun 19 | 24°C | 14°C | 31°C 2007 | 7°C 2013 | 54% |
| Jun 20 | 24°C | 14°C | 32°C 2020 | 8°C 2004 | 54% |
| Jun 21 | 24°C | 14°C | 31°C 2020 | 9°C 1992 | 55% |
| Jun 22 | 24°C | 14°C | 32°C 2020 | 8°C 1992 | 57% |
| Jun 23 | 24°C | 15°C | 31°C 2020 | 6°C 1992 | 59% |
| Jun 24 | 24°C | 15°C | 30°C 1999 | 8°C 1992 | 59% |
| Jun 25 | 25°C | 15°C | 30°C 2005 | 9°C 2004 | 59% |
| Jun 26 | 25°C | 15°C | 31°C 2003 | 8°C 2004 | 59% |
| Jun 27 | 25°C | 15°C | 31°C 2005 | 9°C 2004 | 59% |
| Jun 28 | 25°C | 15°C | 31°C 2005 | 11°C 1996 | 60% |
| Jun 29 | 25°C | 15°C | 30°C 1995 | 9°C 2007 | 61% |
| Jun 30 | 25°C | 15°C | 32°C 2005 | 11°C 2010 | 60% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (EDT).
- June 1
- sunrise 5:15 AM, sunset 8:39 PM
- June 30
- sunrise 5:16 AM, sunset 8:50 PM
Other months
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.