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Portsmouth from London
- Climate suitability
- 41/100for the year
- Best month
- July68/100
- 17.9°C · 371h sunshine
Ranked for warmer and sunnier in June: 70/100
Back to destinations from London for June. This is the year-round page. Choosing a month uses the same monthly weather figures.
Last updated 2026-10-27 (UTC)
Portsmouth is a coastal city in the United Kingdom, known for its maritime history, scenic waterfront, and cultural attractions.
Portsmouth offers a versatile mix of coastal beaches, historical fortresses, mills, and engaging maritime exhibitions.
Portsmouth has a climate suitability score of 41.
The best months to visit Portsmouth are June, July, and August.
Why Portsmouth?
Strongest in summer
July is Portsmouth's highest-scoring month at 68/100.
17.9°C
mean July temperature
371h
July sunshine
59.2mm
July rainfall
- 0.4 °C cooler than London
- 5.9 mm less rain than London
- 24.2 more sunshine hours than London
Best time to visit
For Portsmouth, the highest climate suitability scores are in July (68/100). That describes a typical month, not a personalised trip match.
Warmest month
July
17.9 °C mean
Driest month
April
43.2 mm
Sunniest month
June
362 sunshine hours
Sea temperature
Not available yet
Compared with London in June
Figures show how this place differs from London, using typical monthly weather for June. This is not a personalised trip match and does not include prices.
- 0.4 °C cooler than London
- 5.9 mm less rain than London
- 24.2 more sunshine hours than London
Things to do
Beaches
Getting there
Greater Portsmouth Regional Airport (PMH)
View on map →
Explore Portsmouth
Places to visit around this destination.
Climate by month
Scores describe how suitable a typical month is. They are not a personalised match.
- Jan22
- Feb25
- Mar30
- Apr42
- May53
- Jun63
- Jul68
- Aug64
- Sept54
- Oct36
- Nov22
- Dec18
Best month: July · Climate suitability: 68/100
Show detailed climate data
| Month | Temp °C | Rain mm | Sunshine h | Sea °C | Score | vs London °C |
|---|---|---|---|---|---|---|
| January | 5.8 | 78.1 | 138.4 | Unavailable | 22 | +1.1 °C |
| February | 6.5 | 71.1 | 150.9 | Unavailable | 25 | +0.6 °C |
| March | 7.6 | 70.9 | 216.7 | Unavailable | 30 | +0.3 °C |
| April | 9.5 | 43.2 | 302.1 | Unavailable | 42 | +0.2 °C |
| May | 12.9 | 54.8 | 352.3 | Unavailable | 53 | −0.1 °C |
| June (selected travel window) | 16.0 | 55.2 | 361.5 | Unavailable | 63 | −0.4 °C |
| July (highest climate score) | 17.9 | 59.2 | 370.8 | Unavailable | 68 | −0.5 °C |
| August | 17.7 | 70.6 | 326.0 | Unavailable | 64 | −0.3 °C |
| September | 15.8 | 71.0 | 266.4 | Unavailable | 54 | +0.3 °C |
| October | 12.9 | 98.5 | 204.3 | Unavailable | 36 | +0.8 °C |
| November | 9.3 | 85.8 | 144.7 | Unavailable | 22 | +1.1 °C |
| December | 7.9 | 91.0 | 113.2 | Unavailable | 18 | +1.1 °C |