June is one of the warmer months of the year in Falmouth, with average highs near 15.9°C and lows around 13.1°C (mean 14.5°C). It is one of the drier months, averaging 64 mm of rainfall and 85% relative humidity across the period.
June is one of the warmer months of the year in Falmouth. Across 45 years of records, the warmest June in Falmouth was 2023 — when the month averaged 16.6°C — while the coldest was 1991 at 12.9°C. Typical June days reach 15.9°C with nights near 13.1°C. The long-term trend is warming, about 0.4°C per decade.
June is one of the drier months in Falmouth, averaging 64 mm of rainfall. The wettest June on record was 2012 with 139 mm, while the driest was 1984 at 13 mm.
Relative humidity in Falmouth during June averages 85%. The most humid June was 2000 at 88%, and the least humid was 1989 at 80%.
June receives about 5.7 kWh/m²/day of solar energy in Falmouth. The sunniest June was 2010 at 6.8 kWh/m²/day, and the cloudiest was 1997 at 4.6.
Average wind speed in Falmouth during June is 5 m/s. The windiest June was 1998 at 6.4 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 | 14.0°C | 14.0°C | 14.7°C | 14.6°C | 15.5°C | +1.5°C |
| Avg High | 15.5°C | 15.4°C | 16.0°C | 16.0°C | 16.9°C | +1.4°C |
| Avg Low | 12.5°C | 12.6°C | 13.3°C | 13.3°C | 14.0°C | +1.5°C |
| Avg Rain | 64 mm | 64 mm | 52 mm | 71 mm | 74 mm | +9 mm |
June temperatures in Falmouth have risen by about 1.6°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 9.2°C (1986) to a record high of 21.8°C (1989).
Rainfall in June is one of the drier months, averaging 64 mm, with a wettest year of 139 mm.
One of the best times to visit Falmouth
June is one of the best times to visit Falmouth. Expect days averaging 15.9°C and nights around 13.1°C (mean 14.5°C) — warmer than Falmouth's yearly average — with moderate rainfall (64 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 | 17.4°C | 16.2°C | 15.0°C | 20.4°C | 12.6°C | 77 mm | 87% | 4.8 m/s | 5.6 |
| 2024 | 16.3°C | 14.9°C | 13.4°C | 19.1°C | 11.6°C | 28 mm | 81% | 4.8 m/s | 6.1 |
| 2023 🔥 | 18.1°C | 16.6°C | 15.1°C | 21.5°C | 12.0°C | 47 mm | 85% | 4.5 m/s | 6.3 |
| 2022 | 16.9°C | 15.3°C | 13.8°C | 20.1°C | 11.5°C | 69 mm | 82% | 5.1 m/s | 6 |
| 2021 | 16.6°C | 15.0°C | 13.4°C | 19.2°C | 11.5°C | 83 mm | 85% | 4.1 m/s | 5.8 |
| 2020 | 16.1°C | 14.7°C | 13.3°C | 20.4°C | 10.7°C | 138 mm | 85% | 5.6 m/s | 5.1 |
| 2019 | 15.4°C | 14.2°C | 13.0°C | 19.9°C | 10.7°C | 105 mm | 85% | 5.5 m/s | 5.3 |
| 2018 | 17.6°C | 16.0°C | 14.4°C | 20.4°C | 12.4°C | 23 mm | 84% | 4.6 m/s | 6.1 |
| 2017 | 16.5°C | 15.2°C | 13.9°C | 20.8°C | 12.2°C | 79 mm | 85% | 5.7 m/s | 5.5 |
| 2016 | 16.2°C | 15.0°C | 13.8°C | 18.7°C | 11.4°C | 80 mm | 86% | 4.6 m/s | 5.2 |
| 2015 | 15.5°C | 14.0°C | 12.5°C | 19.9°C | 9.9°C | 44 mm | 84% | 5.3 m/s | 6.2 |
| 2014 | 17.0°C | 15.5°C | 14.0°C | 19.9°C | 10.8°C | 58 mm | 83% | 4.6 m/s | 6.7 |
| 2013 | 14.8°C | 13.5°C | 12.3°C | 16.9°C | 10.4°C | 50 mm | 86% | 5.9 m/s | 5.7 |
| 2012 🌧️ | 14.9°C | 13.8°C | 12.7°C | 17.4°C | 11.5°C | 139 mm | 87% | 6.1 m/s | 4.8 |
| 2011 | 15.1°C | 13.8°C | 12.5°C | 18.6°C | 10.3°C | 86 mm | 83% | 6 m/s | 5.9 |
| 2010 | 17.1°C | 15.4°C | 13.7°C | 20.1°C | 12.0°C | 42 mm | 83% | 4.2 m/s | 6.8 |
| 2009 | 16.4°C | 15.0°C | 13.6°C | 20.6°C | 10.0°C | 27 mm | 83% | 4.2 m/s | 6.2 |
| 2008 | 15.9°C | 14.4°C | 13.0°C | 18.0°C | 11.6°C | 33 mm | 82% | 5.3 m/s | 6.2 |
| 2007 | 16.2°C | 15.0°C | 13.8°C | 19.0°C | 11.5°C | 110 mm | 87% | 5.3 m/s | 5.1 |
| 2006 | 17.0°C | 15.4°C | 13.7°C | 19.3°C | 9.5°C | 48 mm | 83% | 3.5 m/s | 6.4 |
| 2005 | 16.4°C | 14.9°C | 13.4°C | 21.3°C | 10.7°C | 61 mm | 87% | 4.8 m/s | 5.8 |
| 2004 | 16.6°C | 15.2°C | 13.8°C | 20.0°C | 12.1°C | 53 mm | 84% | 5.1 m/s | 6.1 |
| 2003 | 16.4°C | 15.0°C | 13.7°C | 18.4°C | 12.2°C | 74 mm | 86% | 5 m/s | 5.8 |
| 2002 | 14.3°C | 13.2°C | 12.1°C | 15.4°C | 10.2°C | 52 mm | 87% | 5.5 m/s | 5.2 |
| 2001 | 15.9°C | 14.5°C | 13.1°C | 19.7°C | 10.4°C | 35 mm | 83% | 4.7 m/s | 6.1 |
| 2000 | 15.2°C | 14.0°C | 12.8°C | 18.6°C | 10.8°C | 28 mm | 88% | 5.3 m/s | 5.3 |
| 1999 | 15.4°C | 14.0°C | 12.7°C | 17.6°C | 10.7°C | 91 mm | 83% | 5 m/s | 5.7 |
| 1998 | 15.2°C | 14.0°C | 12.8°C | 17.9°C | 10.4°C | 91 mm | 87% | 6.4 m/s | 5.3 |
| 1997 | 15.0°C | 13.8°C | 12.6°C | 16.8°C | 10.9°C | 122 mm | 87% | 6.1 m/s | 4.6 |
| 1996 | 15.8°C | 14.1°C | 12.5°C | 19.1°C | 10.1°C | 23 mm | 84% | 4.7 m/s | 5.9 |
| 1995 | 15.8°C | 14.2°C | 12.7°C | 20.8°C | 10.5°C | 22 mm | 84% | 4.9 m/s | 6.2 |
| 1994 | 15.1°C | 13.7°C | 12.2°C | 17.6°C | 10.2°C | 29 mm | 86% | 5.3 m/s | 6.1 |
| 1993 | 15.9°C | 14.4°C | 12.8°C | 18.8°C | 11.6°C | 67 mm | 86% | 4.8 m/s | 5.7 |
| 1992 | 17.0°C | 15.1°C | 13.2°C | 19.9°C | 11.3°C | 20 mm | 82% | 4.4 m/s | 5.8 |
| 1991 ❄️ | 14.0°C | 12.9°C | 11.7°C | 15.9°C | 9.4°C | 99 mm | 86% | 6.2 m/s | 5.3 |
| 1990 | 15.2°C | 13.9°C | 12.5°C | 17.3°C | 11.4°C | 75 mm | 83% | 5.7 m/s | 5.2 |
| 1989 | 16.5°C | 14.8°C | 13.1°C | 21.8°C | 9.4°C | 35 mm | 80% | 4.9 m/s | 6.1 |
| 1988 | 16.3°C | 14.7°C | 13.0°C | 19.5°C | 10.1°C | 42 mm | 85% | 4.4 m/s | 6 |
| 1987 | 14.4°C | 13.2°C | 11.9°C | 17.5°C | 9.2°C | 79 mm | 86% | 5 m/s | 5.1 |
| 1986 | 15.0°C | 13.6°C | 12.1°C | 18.6°C | 9.2°C | 133 mm | 87% | 4.7 m/s | 5.4 |
| 1985 | 14.7°C | 13.3°C | 11.9°C | 16.5°C | 9.8°C | 65 mm | 83% | 5.6 m/s | 5.6 |
| 1984 | 16.2°C | 14.4°C | 12.6°C | 21.0°C | 9.8°C | 13 mm | 83% | 4.2 m/s | 6.2 |
| 1983 | 15.5°C | 13.9°C | 12.4°C | 19.0°C | 11.1°C | 49 mm | 87% | 4.4 m/s | — |
| 1982 | 16.1°C | 14.7°C | 13.3°C | 18.7°C | 11.9°C | 106 mm | 86% | 4.7 m/s | — |
| 1981 | 14.9°C | 13.6°C | 12.4°C | 18.0°C | 11.2°C | 59 mm | 85% | 5.6 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 15.9°C with lows near 13.1°C (mean 14.5°C), based on 45 years of NASA POWER data.
June averages 64 mm of rainfall in Falmouth, one of the drier months. The wettest on record was 139 mm in 2012.
The hottest June reached 21.8°C in 1989. The coldest dipped to 9.2°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 1.6°C. Daytime highs moved from 15.5°C to 17.1°C and overnight lows from 12.5°C to 14.1°C over the same span.
June is one of the warmer months of the year in Falmouth and one of the drier months, so plan for around 15.9°C daytime highs and 13.1°C at night.
Not quite — June is the 9th coolest month in Falmouth, averaging 14.5°C.
For June in Falmouth, pack light layers you can adjust through the day, with typical highs of 15.9°C and lows of 13.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 85% — quite humid.
Average wind speed in June is 5 m/s. The windiest June on record averaged 6.4 m/s (1998).
The wettest June on record was 2012 with 139 mm. On average, June sees 64 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 Falmouth 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.
