Best Time to Visit Portsmouth: Month-by-Month Guide
Best months for Portsmouth: July, August, September.
- Best months for Portsmouth: July, August, September.
- Peak season is August, July, September. Expect higher prices and more visitors (estimated from the climate, not from visitor counts).
- Shoulder season: June. Good weather without the busiest period.
- Wettest months: December, April, May.
- The least pleasant month is January (score 4.3).
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 4°C | -2°C | 112 mm | 11 | – | – | 4.3 |
| February | 4°C | -2°C | 97 mm | 10 | – | – | 4.5 |
| March | 6°C | 1°C | 129 mm | 10 | – | – | 4.7 |
| April | 10°C | 6°C | 116 mm | 11 | – | – | 5.4 |
| May | 14°C | 11°C | 99 mm | 11 | – | – | 6.3 |
| June | 19°C | 16°C | 94 mm | 9 | – | – | 7.3 |
| July | 23°C | 20°C | 75 mm | 8 | – | – | 8.0 |
| August | 23°C | 20°C | 92 mm | 9 | – | – | 7.9 |
| September | 20°C | 17°C | 105 mm | 9 | – | – | 7.6 |
| October | 16°C | 12°C | 129 mm | 10 | – | – | 6.5 |
| November | 11°C | 6°C | 113 mm | 10 | – | – | 5.9 |
| December | 7°C | 2°C | 135 mm | 12 | – | – | 4.8 |
Frequently asked questions
When is the best time to visit Portsmouth?
The best months are July, August, September.
When is the rainy season in Portsmouth?
The wettest months are December, April, May.