Gower is mild and fairly sunny for Wales, but exposed to Atlantic weather. The sea is warmest from August to early October.
Season by season
Spring (March–May)
Wildflowers on the cliffs, quiet beaches and good walking. Dylan Thomas Day is on 14 May.
Summer (June–August)
The busiest season: lifeguards on the main beaches, full car parks and long sunsets at Rhossili.
Autumn (September–November)
Warm seas in September and good surf. The Dylan Thomas birthday falls on 27 October.
Winter (December–February)
Wild seas and empty beaches; Mumbles and Swansea stay lively.
Month by month
| Month | Avg high / low | Wet days | Daylight | Our verdict |
|---|---|---|---|---|
| January | 8° / 3°C | ≈17 | ≈8.5 h | Quiet & cheap |
| February | 9° / 3°C | ≈13 | ≈10 h | Quiet & cheap |
| March | 11° / 4°C | ≈14 | ≈11.8 h | Good |
| April | 14° / 6°C | ≈12 | ≈13.7 h | Good |
| May | 17° / 9°C | ≈12 | ≈15.3 h | Best |
| June | 20° / 11°C | ≈11 | ≈16.2 h | Best |
| July | 22° / 13°C | ≈11 | ≈15.7 h | Peak season |
| August | 21° / 13°C | ≈12 | ≈14.3 h | Peak season |
| September | 19° / 11°C | ≈12 | ≈12.5 h | Best |
| October | 15° / 8°C | ≈15 | ≈10.7 h | Good |
| November | 11° / 5°C | ≈16 | ≈9 h | Quiet & cheap |
| December | 9° / 3°C | ≈16 | ≈8.1 h | Quiet & cheap |
Approximate long-term averages, rounded; daylight is the approximate time between sunrise and sunset mid-month. Wales is mild but wet, and the mountains are colder, windier and wetter than the coast: pack layers in every season.
Festivals & events
- 14 May International Dylan Thomas Day.
- Summer (some years) An airshow over Swansea Bay; check whether it runs this year.
- Late October / November Dylan Thomas birthday events in Swansea.
Crowds & booking ahead
Rhossili and Three Cliffs are busy on sunny weekends and in school holidays. Arrive before 10am or come for the evening.
