June is one of the warmer months of the year in Derry, with average highs near 15.1°C and lows around 9.5°C (mean 12.3°C). It is one of the drier months, averaging 90 mm of rainfall and 85% relative humidity across the period.
June is one of the warmer months of the year in Derry. Across 45 years of records, the warmest June in Derry was 2023 — when the month averaged 15.6°C — while the coldest was 1987 at 10.6°C. Typical June days reach 15.1°C with nights near 9.5°C. The long-term trend is warming, about 0.3°C per decade.
June is one of the drier months in Derry, averaging 90 mm of rainfall. The wettest June on record was 2020 with 171 mm, while the driest was 1995 at 36 mm.
Relative humidity in Derry during June averages 85%. The most humid June was 2005 at 88%, and the least humid was 2018 at 82%.
June receives about 4.7 kWh/m²/day of solar energy in Derry. The sunniest Junes were 2018 and 2023 at 5.6 kWh/m²/day, and the cloudiest was 2012 at 3.7.
Average wind speed in Derry during June is 3.9 m/s. The windiest June was 1994 at 4.8 m/s, while the calmest were 1988, 2018 and 2023 at 3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 12.0°C | 11.8°C | 12.5°C | 12.4°C | 13.0°C | +1°C |
| Avg High | 14.9°C | 14.6°C | 15.2°C | 15.3°C | 16.0°C | +1.1°C |
| Avg Low | 9.0°C | 9.0°C | 9.8°C | 9.6°C | 10.2°C | +1.2°C |
| Avg Rain | 76 mm | 89 mm | 95 mm | 95 mm | 99 mm | +23 mm |
June temperatures in Derry have risen by about 1.3°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 4.1°C (1987) to a record high of 25.5°C (2018).
Rainfall in June is one of the drier months, averaging 90 mm, with a wettest year of 171 mm.
One of the best times to visit Derry
June is one of the best times to visit Derry. Expect days averaging 15.1°C and nights around 9.5°C (mean 12.3°C) — warmer than Derry's yearly average — with higher rainfall (90 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 | 16.2°C | 13.3°C | 10.3°C | 23.9°C | 7.0°C | 127 mm | 85% | 4.3 m/s | 4.5 |
| 2024 | 14.3°C | 11.6°C | 9.0°C | 21.1°C | 6.7°C | 55 mm | 84% | 4.4 m/s | 4.5 |
| 2023 🔥 | 19.1°C | 15.6°C | 12.1°C | 22.3°C | 8.8°C | 85 mm | 84% | 3 m/s | 5.6 |
| 2022 | 15.6°C | 12.8°C | 10.0°C | 17.8°C | 7.7°C | 94 mm | 85% | 4.2 m/s | 4.7 |
| 2021 | 15.4°C | 12.5°C | 9.7°C | 18.6°C | 6.7°C | 62 mm | 85% | 3.9 m/s | 4.8 |
| 2020 🌧️ | 15.1°C | 12.4°C | 9.8°C | 21.8°C | 5.4°C | 171 mm | 86% | 4 m/s | 4.2 |
| 2019 | 14.5°C | 11.9°C | 9.3°C | 20.5°C | 7.0°C | 119 mm | 85% | 4 m/s | 4.8 |
| 2018 | 17.7°C | 14.2°C | 10.8°C | 25.5°C | 7.3°C | 66 mm | 82% | 3 m/s | 5.6 |
| 2017 | 15.2°C | 12.6°C | 10.1°C | 20.1°C | 7.7°C | 110 mm | 86% | 4.5 m/s | 4.6 |
| 2016 | 16.3°C | 13.4°C | 10.6°C | 21.3°C | 7.4°C | 121 mm | 87% | 3.2 m/s | 4.4 |
| 2015 | 14.1°C | 11.3°C | 8.4°C | 21.0°C | 5.0°C | 75 mm | 84% | 4.3 m/s | 5.2 |
| 2014 | 15.7°C | 12.7°C | 9.8°C | 19.3°C | 6.8°C | 75 mm | 86% | 3.1 m/s | 4.8 |
| 2013 | 15.3°C | 12.2°C | 9.1°C | 19.6°C | 5.8°C | 83 mm | 85% | 3.5 m/s | 4.8 |
| 2012 | 13.9°C | 11.5°C | 9.1°C | 19.4°C | 5.7°C | 168 mm | 87% | 3.8 m/s | 3.7 |
| 2011 | 13.6°C | 10.9°C | 8.2°C | 19.4°C | 5.1°C | 91 mm | 85% | 3.6 m/s | 4.7 |
| 2010 | 16.3°C | 13.3°C | 10.2°C | 20.1°C | 7.3°C | 45 mm | 84% | 3.1 m/s | 5.3 |
| 2009 | 16.1°C | 12.9°C | 9.7°C | 21.9°C | 5.4°C | 59 mm | 83% | 3.4 m/s | 5.5 |
| 2008 | 14.7°C | 12.0°C | 9.3°C | 19.5°C | 7.2°C | 93 mm | 83% | 4.2 m/s | 4.8 |
| 2007 | 15.7°C | 13.0°C | 10.2°C | 21.4°C | 8.1°C | 136 mm | 87% | 3.7 m/s | 4.5 |
| 2006 | 16.2°C | 13.2°C | 10.2°C | 20.9°C | 7.7°C | 60 mm | 85% | 3.6 m/s | 5.2 |
| 2005 | 15.6°C | 13.0°C | 10.4°C | 20.1°C | 6.7°C | 97 mm | 88% | 3.6 m/s | 4.4 |
| 2004 | 15.2°C | 12.7°C | 10.2°C | 18.6°C | 7.3°C | 118 mm | 86% | 4.5 m/s | 4.6 |
| 2003 | 15.8°C | 12.9°C | 10.0°C | 18.9°C | 8.0°C | 83 mm | 85% | 4.1 m/s | 4.5 |
| 2002 | 14.0°C | 11.6°C | 9.3°C | 17.1°C | 6.6°C | 141 mm | 88% | 4.7 m/s | 4.2 |
| 2001 | 14.1°C | 11.4°C | 8.7°C | 18.0°C | 4.8°C | 83 mm | 85% | 4.1 m/s | 4.2 |
| 2000 | 15.0°C | 12.2°C | 9.5°C | 22.0°C | 5.6°C | 79 mm | 85% | 4.1 m/s | 4.4 |
| 1999 | 14.0°C | 11.2°C | 8.4°C | 18.9°C | 4.3°C | 90 mm | 85% | 3.8 m/s | 4.5 |
| 1998 | 14.4°C | 11.6°C | 8.9°C | 20.2°C | 4.4°C | 124 mm | 86% | 3.9 m/s | 4.4 |
| 1997 | 14.3°C | 11.6°C | 8.8°C | 17.8°C | 5.5°C | 98 mm | 84% | 4.3 m/s | 4.3 |
| 1996 | 14.8°C | 11.9°C | 8.9°C | 19.7°C | 6.5°C | 50 mm | 84% | 4.1 m/s | 5 |
| 1995 | 15.3°C | 12.3°C | 9.3°C | 24.0°C | 6.4°C | 36 mm | 84% | 3.7 m/s | 5.5 |
| 1994 | 13.9°C | 11.3°C | 8.8°C | 18.8°C | 6.3°C | 96 mm | 86% | 4.8 m/s | 4.4 |
| 1993 | 15.4°C | 12.6°C | 9.9°C | 20.8°C | 7.2°C | 107 mm | 87% | 3.4 m/s | 4.2 |
| 1992 | 16.3°C | 13.2°C | 10.1°C | 19.8°C | 7.2°C | 57 mm | 85% | 3.5 m/s | 4.8 |
| 1991 | 13.4°C | 10.7°C | 8.0°C | 16.7°C | 4.3°C | 106 mm | 85% | 4 m/s | 4.4 |
| 1990 | 14.2°C | 11.7°C | 9.1°C | 17.2°C | 7.4°C | 122 mm | 84% | 4.1 m/s | 4.6 |
| 1989 | 15.2°C | 12.1°C | 9.1°C | 23.4°C | 4.6°C | 79 mm | 83% | 3.7 m/s | 4.7 |
| 1988 | 16.2°C | 13.0°C | 9.7°C | 18.9°C | 7.6°C | 52 mm | 85% | 3 m/s | 5.5 |
| 1987 ❄️ | 13.3°C | 10.6°C | 7.9°C | 17.8°C | 4.1°C | 89 mm | 85% | 3.5 m/s | 4.3 |
| 1986 | 15.6°C | 12.3°C | 9.0°C | 21.8°C | 4.3°C | 62 mm | 85% | 3.8 m/s | 4.6 |
| 1985 | 13.8°C | 10.8°C | 7.9°C | 18.5°C | 4.7°C | 73 mm | 83% | 3.8 m/s | 4.7 |
| 1984 | 15.5°C | 12.4°C | 9.3°C | 19.6°C | 6.2°C | 62 mm | 85% | 4 m/s | 4.6 |
| 1983 | 14.9°C | 11.9°C | 8.9°C | 20.5°C | 6.6°C | 65 mm | 85% | 3.9 m/s | — |
| 1982 | 16.1°C | 13.1°C | 10.2°C | 22.3°C | 6.6°C | 95 mm | 85% | 3.5 m/s | — |
| 1981 | 13.8°C | 11.5°C | 9.2°C | 17.6°C | 6.9°C | 106 mm | 86% | 4.6 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 15.1°C with lows near 9.5°C (mean 12.3°C), based on 45 years of NASA POWER data.
June averages 90 mm of rainfall in Derry, one of the drier months. The wettest on record was 171 mm in 2020.
The hottest June reached 25.5°C in 2018. The coldest dipped to 4.1°C in 1987.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 1.3°C. Daytime highs moved from 14.8°C to 16.1°C and overnight lows from 9.1°C to 10.2°C over the same span.
June is one of the warmer months of the year in Derry and one of the drier months, so plan for around 15.1°C daytime highs and 9.5°C at night.
Not quite — June is the 9th coolest month in Derry, averaging 12.3°C.
For June in Derry, pack light layers you can adjust through the day, with typical highs of 15.1°C and lows of 9.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 85% — quite humid.
Average wind speed in June is 3.9 m/s. The windiest June on record averaged 4.8 m/s (1994).
The wettest June on record was 2020 with 171 mm. On average, June sees 90 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 Derry 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.
