June is one of the warmer months of the year in Seaham, with average highs near 14.8°C and lows around 10.4°C (mean 12.6°C). It is about average for rainfall, averaging 60 mm of rainfall and 84% relative humidity across the period.
June is one of the warmer months of the year in Seaham. Across 45 years of records, the warmest June in Seaham was 2023 — when the month averaged 14.6°C — while the coldest was 1987 at 10.6°C. Typical June days reach 14.8°C with nights near 10.4°C. The long-term trend is warming, about 0.4°C per decade.
June is about average for rainfall in Seaham, averaging 60 mm of rainfall. The wettest June on record was 2012 with 135 mm, while the driest was 1988 at 14 mm.
Relative humidity in Seaham during June averages 84%. The most humid June was 2007 at 88%, and the least humid was 1989 at 81%.
June receives about 4.8 kWh/m²/day of solar energy in Seaham. The sunniest Junes were 2023, 2024 and 2025, among others at 5.4 kWh/m²/day, and the cloudiest was 1987 at 3.9.
Average wind speed in Seaham during June is 3.8 m/s. The windiest Junes were 1981 and 1995 at 4.6 m/s, while the calmest was 2014 at 2.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 11.9°C | 12.1°C | 12.9°C | 12.7°C | 13.7°C | +1.8°C |
| Avg High | 14.1°C | 14.3°C | 15.2°C | 14.9°C | 16.1°C | +2°C |
| Avg Low | 9.8°C | 9.9°C | 10.7°C | 10.5°C | 11.4°C | +1.6°C |
| Avg Rain | 51 mm | 58 mm | 67 mm | 69 mm | 48 mm | -3 mm |
June temperatures in Seaham have risen by about 2°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 5.7°C (1989) to a record high of 22.1°C (2000).
Rainfall in June is about average for rainfall, averaging 60 mm, with a wettest year of 135 mm.
One of the best times to visit Seaham
June is one of the best times to visit Seaham. Expect days averaging 14.8°C and nights around 10.4°C (mean 12.6°C) — warmer than Seaham's yearly average — with moderate rainfall (60 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 | 17.0°C | 14.5°C | 12.0°C | 22.0°C | 8.8°C | 60 mm | 82% | 4.3 m/s | 5.4 |
| 2024 | 15.2°C | 12.8°C | 10.5°C | 21.1°C | 7.5°C | 35 mm | 83% | 3.8 m/s | 5.4 |
| 2023 🔥 | 16.8°C | 14.6°C | 12.3°C | 21.5°C | 9.2°C | 68 mm | 84% | 3.3 m/s | 5.4 |
| 2022 | 16.2°C | 13.7°C | 11.2°C | 19.9°C | 8.6°C | 31 mm | 82% | 3.8 m/s | 5.4 |
| 2021 | 16.1°C | 13.7°C | 11.3°C | 19.3°C | 8.3°C | 20 mm | 84% | 3.2 m/s | 5.3 |
| 2020 | 15.0°C | 12.9°C | 10.8°C | 20.8°C | 7.0°C | 73 mm | 86% | 4.2 m/s | 4.5 |
| 2019 | 14.7°C | 12.6°C | 10.5°C | 19.5°C | 8.5°C | 110 mm | 85% | 4 m/s | 4.7 |
| 2018 | 15.5°C | 13.1°C | 10.8°C | 18.9°C | 8.7°C | 36 mm | 85% | 3.3 m/s | 5.3 |
| 2017 | 16.1°C | 13.9°C | 11.6°C | 22.0°C | 9.4°C | 131 mm | 84% | 4.4 m/s | 4.5 |
| 2016 | 14.3°C | 12.3°C | 10.2°C | 18.9°C | 7.4°C | 73 mm | 88% | 3.3 m/s | 4.3 |
| 2015 | 14.4°C | 11.9°C | 9.4°C | 20.4°C | 6.3°C | 36 mm | 81% | 4 m/s | 5 |
| 2014 | 15.7°C | 13.7°C | 11.7°C | 18.0°C | 10.0°C | 37 mm | 83% | 2.8 m/s | 4.7 |
| 2013 | 14.4°C | 12.2°C | 10.0°C | 16.8°C | 7.0°C | 37 mm | 84% | 3.2 m/s | 5 |
| 2012 🌧️ | 13.6°C | 11.7°C | 9.8°C | 17.3°C | 7.6°C | 135 mm | 85% | 4 m/s | 4 |
| 2011 | 14.8°C | 12.4°C | 9.9°C | 20.8°C | 7.7°C | 69 mm | 84% | 3.5 m/s | 5.1 |
| 2010 | 15.7°C | 13.3°C | 11.0°C | 19.6°C | 8.6°C | 30 mm | 83% | 3.2 m/s | 5.2 |
| 2009 | 14.7°C | 12.7°C | 10.6°C | 19.5°C | 7.3°C | 44 mm | 83% | 3.3 m/s | 4.9 |
| 2008 | 15.0°C | 12.9°C | 10.8°C | 18.8°C | 8.4°C | 100 mm | 83% | 4 m/s | 4.7 |
| 2007 | 14.6°C | 12.7°C | 10.8°C | 17.9°C | 9.1°C | 119 mm | 88% | 3.7 m/s | 4.1 |
| 2006 | 16.1°C | 13.5°C | 10.8°C | 20.3°C | 7.5°C | 28 mm | 84% | 3.2 m/s | 5.1 |
| 2005 | 15.7°C | 13.4°C | 11.0°C | 20.0°C | 7.1°C | 65 mm | 85% | 3.4 m/s | 4.7 |
| 2004 | 15.7°C | 13.5°C | 11.3°C | 19.0°C | 8.7°C | 76 mm | 84% | 4.2 m/s | 4.9 |
| 2003 | 16.5°C | 14.2°C | 12.0°C | 18.4°C | 9.7°C | 61 mm | 84% | 3.7 m/s | 5 |
| 2002 | 14.8°C | 12.5°C | 10.3°C | 17.0°C | 7.7°C | 63 mm | 85% | 4.4 m/s | 4.5 |
| 2001 | 14.0°C | 11.8°C | 9.6°C | 18.7°C | 6.2°C | 58 mm | 85% | 4.2 m/s | 4.6 |
| 2000 | 14.4°C | 12.2°C | 10.0°C | 22.1°C | 7.8°C | 55 mm | 84% | 4.1 m/s | 4.2 |
| 1999 | 14.0°C | 11.9°C | 9.8°C | 18.1°C | 7.6°C | 77 mm | 84% | 3.7 m/s | 4.6 |
| 1998 | 14.0°C | 12.1°C | 10.2°C | 19.4°C | 6.9°C | 92 mm | 86% | 4.3 m/s | 4 |
| 1997 | 13.8°C | 12.0°C | 10.1°C | 17.3°C | 7.7°C | 126 mm | 86% | 4.5 m/s | 4 |
| 1996 | 14.6°C | 12.1°C | 9.6°C | 18.5°C | 7.0°C | 37 mm | 82% | 3.7 m/s | 5 |
| 1995 | 13.8°C | 11.6°C | 9.4°C | 19.7°C | 7.8°C | 31 mm | 84% | 4.6 m/s | 4.7 |
| 1994 | 14.8°C | 12.2°C | 9.6°C | 19.8°C | 6.6°C | 27 mm | 82% | 4.4 m/s | 5.3 |
| 1993 | 14.6°C | 12.3°C | 10.0°C | 17.9°C | 7.0°C | 43 mm | 85% | 3.3 m/s | 4.8 |
| 1992 | 16.0°C | 13.8°C | 11.6°C | 20.0°C | 9.5°C | 23 mm | 84% | 3.3 m/s | 4.9 |
| 1991 | 12.9°C | 10.9°C | 8.9°C | 16.7°C | 6.0°C | 62 mm | 82% | 4.1 m/s | 4.5 |
| 1990 | 14.5°C | 12.3°C | 10.1°C | 17.3°C | 7.6°C | 62 mm | 82% | 3.8 m/s | 4.4 |
| 1989 | 15.0°C | 12.5°C | 10.1°C | 21.5°C | 5.7°C | 41 mm | 81% | 3.5 m/s | 5.3 |
| 1988 | 14.7°C | 12.7°C | 10.7°C | 17.7°C | 8.4°C | 14 mm | 83% | 3.4 m/s | 5.2 |
| 1987 ❄️ | 12.3°C | 10.6°C | 8.9°C | 17.4°C | 6.2°C | 93 mm | 85% | 3.2 m/s | 3.9 |
| 1986 | 14.2°C | 11.7°C | 9.3°C | 18.9°C | 6.1°C | 41 mm | 86% | 3.8 m/s | 4.7 |
| 1985 | 13.3°C | 11.2°C | 9.2°C | 16.3°C | 6.0°C | 44 mm | 82% | 3.7 m/s | 4.8 |
| 1984 | 14.5°C | 12.2°C | 10.0°C | 19.3°C | 7.3°C | 50 mm | 84% | 4 m/s | 4.6 |
| 1983 | 13.8°C | 11.6°C | 9.4°C | 18.1°C | 6.5°C | 53 mm | 85% | 3.7 m/s | — |
| 1982 | 14.8°C | 12.9°C | 11.0°C | 21.2°C | 8.2°C | 74 mm | 84% | 3.4 m/s | — |
| 1981 | 13.9°C | 11.8°C | 9.7°C | 17.3°C | 7.7°C | 47 mm | 83% | 4.6 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 14.8°C with lows near 10.4°C (mean 12.6°C), based on 45 years of NASA POWER data.
June averages 60 mm of rainfall in Seaham, about average for rainfall. The wettest on record was 135 mm in 2012.
The hottest June reached 22.1°C in 2000. The coldest dipped to 5.7°C in 1989.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 2°C. Daytime highs moved from 14.1°C to 16.3°C and overnight lows from 9.9°C to 11.5°C over the same span.
June is one of the warmer months of the year in Seaham and about average for rainfall, so plan for around 14.8°C daytime highs and 10.4°C at night.
Not quite — June is the 9th coolest month in Seaham, averaging 12.6°C.
For June in Seaham, pack light layers you can adjust through the day, with typical highs of 14.8°C and lows of 10.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 84% — quite humid.
Average wind speed in June is 3.8 m/s. The windiest June on record averaged 4.6 m/s (1981).
The wettest June on record was 2012 with 135 mm. On average, June sees 60 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 Seaham 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.
