June is one of the cooler months of the year in Southport, with average highs near 19.6°C and lows around 11.1°C (mean 15.4°C). It is one of the drier months, averaging 79 mm of rainfall and 76% relative humidity across the period.
June is one of the cooler months of the year in Southport. Across 45 years of records, the warmest June in Southport was 2019 — when the month averaged 16.9°C — while the coldest were 1982 and 1985 at 13.5°C. Typical June days reach 19.6°C with nights near 11.1°C. The long-term trend is warming, about 0.3°C per decade.
June is one of the drier months in Southport, averaging 79 mm of rainfall. The wettest June on record was 2005 with 318 mm, while the driest was 2023 at 7 mm.
Relative humidity in Southport during June averages 76%. The most humid June was 1989 at 83%, and the least humid was 2023 at 66%.
June receives about 3.1 kWh/m²/day of solar energy in Southport. The sunniest June was 2024 at 3.5 kWh/m²/day, and the cloudiest was 2005 at 2.6.
Average wind speed in Southport during June is 2.8 m/s. The windiest June was 2017 at 3.4 m/s, while the calmest was 2023 at 2.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 14.5°C | 15.1°C | 15.8°C | 15.8°C | 15.6°C | +1.1°C |
| Avg High | 18.6°C | 19.3°C | 20.1°C | 20.0°C | 20.3°C | +1.7°C |
| Avg Low | 10.3°C | 11.0°C | 11.5°C | 11.5°C | 10.9°C | +0.6°C |
| Avg Rain | 91 mm | 69 mm | 107 mm | 82 mm | 23 mm | -68 mm |
June temperatures in Southport have risen by about 1.2°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 2.2°C (1990) to a record high of 27.3°C (2016).
Rainfall in June is one of the drier months, averaging 79 mm, with a wettest year of 318 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.5°C per decade while lows rose 0.2°C per decade, widening the gap between day and night.
A quieter season to visit Southport
If your dates are flexible, the more temperate months of October and November tend to be the most comfortable for visiting Southport. That said, June — with days averaging 19.6°C and nights around 11.1°C (mean 15.4°C) and moderate rainfall (79 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 19.2°C | 15.1°C | 11.1°C | 22.3°C | 6.0°C | 43 mm | 78% | 2.8 m/s | 3.1 |
| 2024 | 21.3°C | 16.1°C | 10.9°C | 26.0°C | 7.5°C | 12 mm | 69% | 2.3 m/s | 3.5 |
| 2023 | 22.0°C | 16.7°C | 11.4°C | 27.0°C | 6.5°C | 7 mm | 66% | 2.1 m/s | 3.4 |
| 2022 | 18.8°C | 14.0°C | 9.3°C | 21.6°C | 3.9°C | 14 mm | 76% | 2.4 m/s | 3.4 |
| 2021 | 19.7°C | 15.1°C | 10.5°C | 23.0°C | 5.2°C | 20 mm | 77% | 2.6 m/s | 3.1 |
| 2020 | 20.7°C | 16.4°C | 12.0°C | 23.1°C | 6.3°C | 45 mm | 75% | 2.8 m/s | 3.1 |
| 2019 🔥 | 21.2°C | 16.9°C | 12.5°C | 24.6°C | 7.4°C | 77 mm | 74% | 2.7 m/s | 3.1 |
| 2018 | 21.2°C | 16.3°C | 11.4°C | 24.6°C | 6.0°C | 22 mm | 69% | 2.8 m/s | 3.2 |
| 2017 | 20.5°C | 16.6°C | 12.6°C | 23.0°C | 7.5°C | 101 mm | 80% | 3.4 m/s | 3.2 |
| 2016 | 20.3°C | 16.0°C | 11.8°C | 27.3°C | 4.9°C | 174 mm | 74% | 3.1 m/s | 2.7 |
| 2015 | 19.8°C | 15.7°C | 11.6°C | 22.4°C | 6.4°C | 44 mm | 79% | 2.7 m/s | 2.8 |
| 2014 | 21.0°C | 16.3°C | 11.7°C | 23.8°C | 6.9°C | 28 mm | 74% | 2.7 m/s | 3.2 |
| 2013 | 18.9°C | 15.0°C | 11.1°C | 22.4°C | 5.6°C | 131 mm | 82% | 2.8 m/s | 2.8 |
| 2012 | 18.5°C | 14.8°C | 11.2°C | 21.4°C | 7.1°C | 176 mm | 82% | 3.3 m/s | 2.7 |
| 2011 | 19.2°C | 14.7°C | 10.2°C | 22.5°C | 5.0°C | 38 mm | 74% | 2.6 m/s | 3.1 |
| 2010 | 19.9°C | 15.5°C | 11.1°C | 22.5°C | 6.3°C | 35 mm | 74% | 2.6 m/s | 2.9 |
| 2009 | 18.8°C | 14.7°C | 10.6°C | 21.2°C | 3.4°C | 133 mm | 82% | 2.5 m/s | 3.1 |
| 2008 | 20.8°C | 16.6°C | 12.3°C | 23.9°C | 7.2°C | 106 mm | 78% | 2.7 m/s | 3.1 |
| 2007 | 19.1°C | 14.9°C | 10.6°C | 24.4°C | 5.2°C | 106 mm | 74% | 3 m/s | 2.8 |
| 2006 | 19.7°C | 15.5°C | 11.3°C | 22.2°C | 7.1°C | 117 mm | 75% | 2.9 m/s | 2.9 |
| 2005 🌧️ | 20.4°C | 16.7°C | 13.0°C | 24.4°C | 5.5°C | 318 mm | 78% | 2.9 m/s | 2.6 |
| 2004 | 21.3°C | 16.2°C | 11.2°C | 25.8°C | 4.6°C | 13 mm | 68% | 2.5 m/s | 3.4 |
| 2003 | 20.1°C | 16.0°C | 11.8°C | 23.9°C | 6.8°C | 92 mm | 79% | 2.6 m/s | 2.9 |
| 2002 | 20.8°C | 16.1°C | 11.3°C | 26.4°C | 5.3°C | 79 mm | 70% | 3.1 m/s | 3 |
| 2001 | 20.9°C | 16.8°C | 12.8°C | 24.7°C | 5.1°C | 25 mm | 75% | 2.4 m/s | 3 |
| 2000 | 19.0°C | 14.6°C | 10.2°C | 24.2°C | 4.1°C | 78 mm | 75% | 3 m/s | 3 |
| 1999 | 18.5°C | 14.7°C | 10.8°C | 21.0°C | 4.8°C | 232 mm | 79% | 3.2 m/s | 3 |
| 1998 | 20.5°C | 16.1°C | 11.6°C | 24.8°C | 3.8°C | 30 mm | 75% | 2.7 m/s | 3 |
| 1997 | 19.3°C | 15.5°C | 11.8°C | 22.3°C | 5.9°C | 50 mm | 79% | 2.7 m/s | 2.9 |
| 1996 | 19.0°C | 15.6°C | 12.2°C | 22.2°C | 6.4°C | 77 mm | 82% | 2.6 m/s | 3 |
| 1995 | 19.2°C | 15.1°C | 11.1°C | 23.1°C | 4.3°C | 41 mm | 75% | 2.9 m/s | 3 |
| 1994 | 19.2°C | 14.5°C | 9.9°C | 22.1°C | 5.5°C | 27 mm | 73% | 2.6 m/s | 3.3 |
| 1993 | 20.1°C | 15.7°C | 11.2°C | 25.0°C | 5.5°C | 23 mm | 73% | 2.8 m/s | 3.2 |
| 1992 | 18.1°C | 13.8°C | 9.5°C | 20.3°C | 5.0°C | 35 mm | 77% | 2.4 m/s | 3.3 |
| 1991 | 21.2°C | 16.6°C | 12.0°C | 25.6°C | 6.7°C | 74 mm | 76% | 2.4 m/s | 3.3 |
| 1990 | 17.4°C | 13.9°C | 10.4°C | 20.2°C | 2.2°C | 97 mm | 82% | 3.2 m/s | 3 |
| 1989 | 18.0°C | 14.1°C | 10.2°C | 21.7°C | 4.3°C | 55 mm | 83% | 2.9 m/s | 2.9 |
| 1988 | 18.9°C | 14.9°C | 10.9°C | 23.9°C | 6.0°C | 142 mm | 79% | 3 m/s | 3.3 |
| 1987 | 18.9°C | 15.5°C | 12.0°C | 20.9°C | 4.7°C | 90 mm | 81% | 2.8 m/s | 2.9 |
| 1986 | 19.8°C | 15.2°C | 10.5°C | 24.0°C | 3.8°C | 22 mm | 69% | 2.4 m/s | 3.2 |
| 1985 | 17.9°C | 13.5°C | 9.1°C | 23.6°C | 2.5°C | 50 mm | 75% | 2.5 m/s | 3.3 |
| 1984 | 19.3°C | 15.7°C | 12.1°C | 21.5°C | 5.6°C | 133 mm | 79% | 3 m/s | 3.2 |
| 1983 | 17.8°C | 14.2°C | 10.6°C | 21.0°C | 4.9°C | 275 mm | 81% | 3.3 m/s | — |
| 1982 ❄️ | 18.5°C | 13.5°C | 8.4°C | 21.1°C | 4.2°C | 19 mm | 70% | 2.9 m/s | — |
| 1981 | 18.7°C | 13.9°C | 9.2°C | 22.1°C | 5.0°C | 37 mm | 75% | 2.8 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 19.6°C with lows near 11.1°C (mean 15.4°C), based on 45 years of NASA POWER data.
June averages 79 mm of rainfall in Southport, one of the drier months. The wettest on record was 318 mm in 2005.
The hottest June reached 27.3°C in 2016. The coldest dipped to 2.2°C in 1990.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 1.2°C. Daytime highs moved from 18.4°C to 20.2°C and overnight lows from 9.9°C to 10.6°C over the same span.
June is one of the cooler months of the year in Southport and one of the drier months, so plan for around 19.6°C daytime highs and 11.1°C at night.
Not quite — June is the 2nd coolest month in Southport, averaging 15.4°C.
For June in Southport, pack light layers you can adjust through the day, with typical highs of 19.6°C and lows of 11.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 76% — quite humid.
Average wind speed in June is 2.8 m/s. The windiest June on record averaged 3.4 m/s (2017).
The wettest June on record was 2005 with 318 mm. On average, June sees 79 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 Southport 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.
