June is one of the warmer months of the year in Penzance, with average highs near 15°C and lows around 13.5°C (mean 14.3°C). It is one of the drier months, averaging 62 mm of rainfall and 87% relative humidity across the period.
June is one of the warmer months of the year in Penzance. Across 45 years of records, the warmest June in Penzance was 2023 — when the month averaged 16.3°C — while the coldest was 1991 at 12.8°C. Typical June days reach 15°C with nights near 13.5°C. The long-term trend is warming, about 0.3°C per decade.
June is one of the drier months in Penzance, averaging 62 mm of rainfall. The wettest June on record was 2012 with 133 mm, while the driest was 1992 at 20 mm.
Relative humidity in Penzance during June averages 87%. The most humid June was 2000 at 89%, and the least humid was 1989 at 82%.
June receives about 5.7 kWh/m²/day of solar energy in Penzance. The sunniest June was 2010 at 6.8 kWh/m²/day, and the cloudiest was 1997 at 4.6.
Average wind speed in Penzance during June is 5.1 m/s. The windiest Junes were 1997 and 1998 at 6.3 m/s, while the calmest was 2006 at 3.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 13.8°C | 13.8°C | 14.5°C | 14.4°C | 15.1°C | +1.3°C |
| Avg High | 14.6°C | 14.5°C | 15.2°C | 15.1°C | 15.8°C | +1.2°C |
| Avg Low | 13.0°C | 13.1°C | 13.8°C | 13.7°C | 14.4°C | +1.4°C |
| Avg Rain | 64 mm | 61 mm | 50 mm | 69 mm | 67 mm | +2 mm |
June temperatures in Penzance have risen by about 1.5°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 9.8°C (1987) to a record high of 20.5°C (1989).
Rainfall in June is one of the drier months, averaging 62 mm, with a wettest year of 133 mm.
One of the best times to visit Penzance
June is one of the best times to visit Penzance. Expect days averaging 15°C and nights around 13.5°C (mean 14.3°C) — warmer than Penzance's yearly average — with moderate rainfall (62 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 | 16.4°C | 15.8°C | 15.3°C | 18.7°C | 13.5°C | 63 mm | 89% | 4.7 m/s | 5.6 |
| 2024 | 15.2°C | 14.6°C | 13.9°C | 17.1°C | 12.2°C | 29 mm | 83% | 4.9 m/s | 6.1 |
| 2023 🔥 | 17.0°C | 16.3°C | 15.5°C | 19.4°C | 12.9°C | 51 mm | 88% | 4.4 m/s | 6.3 |
| 2022 | 15.9°C | 15.1°C | 14.2°C | 18.7°C | 12.4°C | 72 mm | 84% | 5.2 m/s | 6 |
| 2021 | 15.3°C | 14.6°C | 13.8°C | 18.3°C | 12.4°C | 78 mm | 87% | 4.2 m/s | 5.8 |
| 2020 | 15.2°C | 14.4°C | 13.7°C | 19.0°C | 11.2°C | 106 mm | 87% | 5.7 m/s | 5.1 |
| 2019 | 14.6°C | 14.0°C | 13.4°C | 18.2°C | 11.0°C | 90 mm | 87% | 5.4 m/s | 5.3 |
| 2018 | 16.5°C | 15.7°C | 14.8°C | 19.3°C | 13.5°C | 22 mm | 86% | 4.5 m/s | 6.1 |
| 2017 | 15.6°C | 15.0°C | 14.3°C | 19.5°C | 12.6°C | 79 mm | 87% | 5.7 m/s | 5.5 |
| 2016 | 15.3°C | 14.8°C | 14.3°C | 16.2°C | 12.2°C | 77 mm | 88% | 4.6 m/s | 5.2 |
| 2015 | 14.7°C | 13.9°C | 13.1°C | 18.5°C | 10.6°C | 50 mm | 86% | 5.3 m/s | 6.2 |
| 2014 | 16.0°C | 15.2°C | 14.4°C | 18.2°C | 11.1°C | 56 mm | 85% | 4.9 m/s | 6.7 |
| 2013 | 13.9°C | 13.3°C | 12.7°C | 15.4°C | 11.3°C | 58 mm | 89% | 5.8 m/s | 5.7 |
| 2012 🌧️ | 14.3°C | 13.7°C | 13.2°C | 16.5°C | 12.0°C | 133 mm | 88% | 6.1 m/s | 4.8 |
| 2011 | 14.2°C | 13.6°C | 12.9°C | 16.7°C | 10.7°C | 82 mm | 85% | 6.1 m/s | 5.9 |
| 2010 | 15.8°C | 15.1°C | 14.3°C | 18.5°C | 12.6°C | 39 mm | 86% | 4.2 m/s | 6.8 |
| 2009 | 15.7°C | 14.9°C | 14.1°C | 18.2°C | 10.3°C | 30 mm | 85% | 4.2 m/s | 6.2 |
| 2008 | 15.0°C | 14.4°C | 13.7°C | 15.9°C | 12.7°C | 38 mm | 83% | 5.3 m/s | 6.2 |
| 2007 | 15.4°C | 14.8°C | 14.1°C | 17.4°C | 12.2°C | 103 mm | 89% | 5.3 m/s | 5.1 |
| 2006 | 16.0°C | 15.1°C | 14.2°C | 17.5°C | 10.6°C | 32 mm | 85% | 3.5 m/s | 6.4 |
| 2005 | 15.3°C | 14.6°C | 13.9°C | 17.7°C | 11.6°C | 60 mm | 89% | 4.8 m/s | 5.8 |
| 2004 | 15.5°C | 14.9°C | 14.3°C | 17.9°C | 12.7°C | 53 mm | 86% | 5.1 m/s | 6.1 |
| 2003 | 15.4°C | 14.8°C | 14.1°C | 16.9°C | 13.1°C | 68 mm | 87% | 5.1 m/s | 5.8 |
| 2002 | 13.7°C | 13.2°C | 12.7°C | 14.5°C | 10.8°C | 54 mm | 88% | 5.6 m/s | 5.2 |
| 2001 | 15.2°C | 14.5°C | 13.8°C | 19.0°C | 11.3°C | 37 mm | 85% | 4.7 m/s | 6.1 |
| 2000 | 14.4°C | 13.8°C | 13.2°C | 17.4°C | 11.3°C | 29 mm | 89% | 5.3 m/s | 5.3 |
| 1999 | 14.6°C | 13.9°C | 13.2°C | 16.9°C | 11.3°C | 78 mm | 85% | 4.9 m/s | 5.7 |
| 1998 | 14.5°C | 13.9°C | 13.3°C | 16.3°C | 10.8°C | 87 mm | 89% | 6.3 m/s | 5.3 |
| 1997 | 14.3°C | 13.7°C | 13.0°C | 15.6°C | 11.7°C | 120 mm | 88% | 6.3 m/s | 4.6 |
| 1996 | 14.8°C | 14.0°C | 13.2°C | 17.2°C | 10.3°C | 23 mm | 86% | 4.7 m/s | 5.9 |
| 1995 | 14.9°C | 14.1°C | 13.2°C | 19.7°C | 11.3°C | 23 mm | 87% | 4.9 m/s | 6.2 |
| 1994 | 14.0°C | 13.3°C | 12.6°C | 16.1°C | 10.6°C | 22 mm | 88% | 5.3 m/s | 6.1 |
| 1993 | 14.7°C | 13.9°C | 13.2°C | 17.2°C | 11.9°C | 68 mm | 88% | 4.9 m/s | 5.7 |
| 1992 | 15.6°C | 14.6°C | 13.7°C | 17.7°C | 11.8°C | 20 mm | 86% | 4.6 m/s | 5.8 |
| 1991 ❄️ | 13.4°C | 12.8°C | 12.1°C | 14.7°C | 9.9°C | 97 mm | 88% | 6.2 m/s | 5.3 |
| 1990 | 14.4°C | 13.8°C | 13.1°C | 15.6°C | 11.9°C | 76 mm | 85% | 5.8 m/s | 5.2 |
| 1989 | 15.5°C | 14.6°C | 13.6°C | 20.5°C | 9.9°C | 35 mm | 82% | 5 m/s | 6.1 |
| 1988 | 15.3°C | 14.4°C | 13.4°C | 17.7°C | 10.9°C | 47 mm | 87% | 4.6 m/s | 6 |
| 1987 | 13.7°C | 13.0°C | 12.4°C | 15.8°C | 9.8°C | 81 mm | 88% | 4.9 m/s | 5.1 |
| 1986 | 14.1°C | 13.3°C | 12.5°C | 17.5°C | 10.2°C | 118 mm | 88% | 4.6 m/s | 5.4 |
| 1985 | 13.9°C | 13.2°C | 12.5°C | 15.4°C | 10.6°C | 67 mm | 85% | 5.5 m/s | 5.6 |
| 1984 | 14.9°C | 14.0°C | 13.0°C | 19.7°C | 9.9°C | 21 mm | 86% | 4.3 m/s | 6.2 |
| 1983 | 14.5°C | 13.7°C | 12.9°C | 17.6°C | 11.6°C | 35 mm | 88% | 4.5 m/s | — |
| 1982 | 15.4°C | 14.6°C | 13.8°C | 17.2°C | 12.3°C | 116 mm | 88% | 4.8 m/s | — |
| 1981 | 14.2°C | 13.6°C | 13.0°C | 15.7°C | 11.6°C | 60 mm | 87% | 5.7 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 15°C with lows near 13.5°C (mean 14.3°C), based on 45 years of NASA POWER data.
June averages 62 mm of rainfall in Penzance, one of the drier months. The wettest on record was 133 mm in 2012.
The hottest June reached 20.5°C in 1989. The coldest dipped to 9.8°C in 1987.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 1.5°C. Daytime highs moved from 14.6°C to 16°C and overnight lows from 13°C to 14.5°C over the same span.
June is one of the warmer months of the year in Penzance and one of the drier months, so plan for around 15°C daytime highs and 13.5°C at night.
Not quite — June is the 9th coolest month in Penzance, averaging 14.3°C.
For June in Penzance, pack light layers you can adjust through the day, with typical highs of 15°C and lows of 13.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 87% — quite humid.
Average wind speed in June is 5.1 m/s. The windiest June on record averaged 6.3 m/s (1997).
The wettest June on record was 2012 with 133 mm. On average, June sees 62 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 Penzance 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.
