Lac de Guerledan vs Lake Vyrnwy
Lac de Guerledan is the warmer swim right now at about 18.8°C. They are roughly 509 km apart in France and United Kingdom.
Lac de Guerledan
Brittany
mild · modelled estimate
- October average
- 18.8°C
- Warmest month
- August · 23.0°C
- Coldest month
- 6.0°C
- Swim season
- June–October
Lac de Guerledan in Brittany, France reaches comfortable swimming temperatures in July and August, and drops close to single digits in winter.
Lake Vyrnwy
Wales
cool · modelled estimate
- October average
- 14.5°C
- Warmest month
- August · 18.0°C
- Coldest month
- 4.0°C
- Swim season
- August–August
Lake Vyrnwy in Wales, United Kingdom stays cool even at its August peak — a short-swim lake, and drops close to single digits in winter.
Month by month
| Lake | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lac de Guerledan | 7.1°C | 6.0°C | 7.1°C | 10.3°C | 14.5°C | 18.8°C | 21.9°C | 23.0°C | 21.9°C | 18.8°C | 14.5°C | 10.3°C |
| Lake Vyrnwy | 4.9°C | 4.0°C | 4.9°C | 7.5°C | 11.0°C | 14.5°C | 17.1°C | 18.0°C | 17.1°C | 14.5°C | 11.0°C | 7.5°C |
Monthly values are modelled from each lake's long-term winter and summer envelope, then refined with today's forecast air temperature for the headline reading.
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