Weather in Portsmouth in June
In an average June, Portsmouth sees a daily high around 17°C and a low around 13°C, based on 1980–2026 of local climate records.
| Average high | 17°C |
|---|---|
| Typical high range | 14°C to 20°C |
| Average low | 13°C |
| Typical low range | 10°C to 15°C |
| Average daily precipitation | 3 mm |
June records
The most extreme June on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total June accumulation.
High
Highest
34°C
2026-06-24
Lowest
11°C
1989-06-01
Low
Highest
20°C
2026-06-25
Lowest
6°C
1991-06-04
Feels-like
Highest
46°C
2026-06-24
Lowest
2°C
1991-06-04
Humidity
Highest
17.9 g/m³
2026-06-24
Lowest
6.2 g/m³
1991-06-04
Wind
Highest
57 km/h
2004-06-23
Lowest
8 km/h
1983-06-17
Gust
Highest
94 km/h
2004-06-23
Lowest
14 km/h
1983-06-17
Precip
Wettest
174 mm
2021
Driest
7 mm
2018
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