Portsmouth, England Climate
United Kingdom
Pop. 208,100 Elev. 6 m / 20 ft
TZ: Europe/London (UTC+1) ·
Summers in Portsmouth are cool, with July highs around 70°F (21°C), while winters are cool with January lows of 39°F (4°C). Expect around 54 rainy days annually (30.9 in / 786 mm total). Overcast skies are common, with only 86 sunny days per year. Ocean water temperatures reach 67°F (20°C) in summer.
| Temperature | 21°C (70°F) high | 4°C (39°F) low |
| Feels like | 2°C (36°F) low | |
| Rain | 54 days | 786 mm (30.9 in) /yr |
| Sky | 86 sunny | 17 stormy |
| Wind | 2.3 m/s (5.1 mph) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: May, Jun, Jul, Aug, Sep
Sky & Air by Month
Cloud cover (%)
74
Jan 77
Feb 53
Mar 44
Apr 58
May 53
Jun 51
Jul 57
Aug 57
Sep 76
Oct 66
Nov 71
Dec Humidity (%)
85
Jan 83
Feb 80
Mar 76
Apr 74
May 80
Jun 74
Jul 75
Aug 78
Sep 81
Oct 84
Nov 85
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 26 km Southampton Airport (SOU)
Ski resort 27 km Southampton Alpine Centre
National park 88 km Langley Park
Hospital 2 km Saint Mary's
Hiking trail 3 km King Charles III England Coast Path: Portsmouth to South Hayling:: E9 Alt Route
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 7°C 45°F | 4°C 39°F | 133 mm 5.2 in | 8 mm0.3 in | 4 |
| February | 8°C 46°F | 5°C 41°F | 60 mm 2.4 in | — | 3 |
| March | 10°C 50°F | 6°C 42°F | 15 mm 0.6 in | — | 13 |
| April | 13°C 56°F | 8°C 47°F | 31 mm 1.2 in | — | 15 |
| May | 16°C 61°F | 11°C 52°F | 29 mm 1.1 in | — | 7 |
| June | 19°C 66°F | 15°C 59°F | 38 mm 1.5 in | — | 9 |
| July | 21°C 70°F | 16°C 61°F | 70 mm 2.8 in | — | 11 |
| August | 21°C 69°F | 16°C 60°F | 26 mm 1.0 in | — | 8 |
| September | 17°C 63°F | 13°C 56°F | 76 mm 3.0 in | — | 6 |
| October | 15°C 59°F | 12°C 54°F | 85 mm 3.4 in | — | 2 |
| November | 12°C 54°F | 9°C 48°F | 109 mm 4.3 in | 0 mm0.0 in | 5 |
| December | 10°C 50°F | 7°C 45°F | 112 mm 4.4 in | — | 3 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 4 | 3 |
| February | 3 | 0 |
| March | 13 | 0 |
| April | 15 | 0 |
| May | 7 | 0 |
| June | 9 | 2 |
| July | 11 | 3 |
| August | 8 | 0 |
| September | 6 | 3 |
| October | 2 | 1 |
| November | 5 | 2 |
| December | 3 | 3 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High |
|---|---|
| January | 10°C 49°F |
| February | 8°C 46°F |
| March | 9°C 49°F |
| April | 12°C 54°F |
| May | 15°C 59°F |
| June | 18°C 65°F |
| July | 20°C 67°F |
| August | 20°C 67°F |
| September | 19°C 66°F |
| October | 16°C 61°F |
| November | 14°C 57°F |
| December | 11°C 52°F |