Swansea vs Portsmouth, United Kingdom Climate
98%matchSwansea and Portsmouth are a 98% climate match. Compared with Swansea, Portsmouth has the same winter lows and less rain in summer.
Swansea gets 45 in (1147 mm) of rain a year and Portsmouth 33 in (844 mm). July is the warmest month in both, with highs of 70°F (21°C) in Swansea and 72°F (22°C) in Portsmouth.
Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.
Month by month
Highs and lows (°F)
SwanseaPortsmouthsolid = high, dashed = low
Rain (in per month)
SwanseaPortsmouth
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| Swansea | Portsmouth | Swansea | Portsmouth | Swansea | Portsmouth | |
| Jan | 47°F(9°C) | 47°F(9°C) | 38°F(4°C) | 38°F(3°C) | 4.3 in(110 mm) | 3.5 in(90 mm) |
| Feb | 47°F(9°C) | 47°F(9°C) | 38°F(3°C) | 37°F(3°C) | 3.3 in(84 mm) | 2.5 in(63 mm) |
| Mar | 51°F(11°C) | 51°F(11°C) | 40°F(4°C) | 40°F(4°C) | 3.1 in(78 mm) | 2.2 in(57 mm) |
| Apr | 56°F(13°C) | 57°F(14°C) | 43°F(6°C) | 43°F(6°C) | 2.7 in(69 mm) | 2.0 in(52 mm) |
| May | 62°F(17°C) | 63°F(17°C) | 48°F(9°C) | 47°F(9°C) | 2.8 in(71 mm) | 1.9 in(47 mm) |
| Jun | 67°F(19°C) | 68°F(20°C) | 53°F(12°C) | 53°F(12°C) | 3.1 in(78 mm) | 2.2 in(55 mm) |
| Jul | 70°F(21°C) | 72°F(22°C) | 57°F(14°C) | 56°F(14°C) | 3.6 in(92 mm) | 2.1 in(53 mm) |
| Aug | 69°F(21°C) | 71°F(22°C) | 56°F(14°C) | 56°F(14°C) | 3.8 in(97 mm) | 2.3 in(59 mm) |
| Sep | 65°F(18°C) | 67°F(19°C) | 53°F(11°C) | 53°F(12°C) | 3.3 in(85 mm) | 2.5 in(63 mm) |
| Oct | 59°F(15°C) | 60°F(16°C) | 48°F(9°C) | 48°F(9°C) | 4.8 in(122 mm) | 4.0 in(102 mm) |
| Nov | 53°F(12°C) | 53°F(12°C) | 43°F(6°C) | 42°F(6°C) | 5.4 in(136 mm) | 4.2 in(107 mm) |
| Dec | 49°F(9°C) | 49°F(9°C) | 39°F(4°C) | 39°F(4°C) | 4.9 in(125 mm) | 3.8 in(96 mm) |
1991–2020 averages, by calendar month.