Barragem de Montargil vs Lagoa das Sete Cidades
Barragem de Montargil is the warmer swim right now at about 25.9°C. They are roughly 1536 km apart in Portugal.
Barragem de Montargil
Alentejo
hot · modelled estimate
- September average
- 25.9°C
- Warmest month
- August · 27.0°C
- Coldest month
- 11.0°C
- Swim season
- May–November
Barragem de Montargil in Alentejo, Portugal warms into the mid-20s °C for reliable summer swimming, and stays mild even in winter.
Lagoa das Sete Cidades
Azores
mild · modelled estimate
- September average
- 19.5°C
- Warmest month
- August · 20.0°C
- Coldest month
- 13.0°C
- Swim season
- June–October
Lagoa das Sete Cidades in Azores, Portugal is swimmable in high summer, brisk either side of it, and stays mild even in winter.
Month by month
| Lake | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Barragem de Montargil | 12.1°C | 11.0°C | 12.1°C | 15.0°C | 19.0°C | 23.0°C | 25.9°C | 27.0°C | 25.9°C | 23.0°C | 19.0°C | 15.0°C |
| Lagoa das Sete Cidades | 13.5°C | 13.0°C | 13.5°C | 14.8°C | 16.5°C | 18.3°C | 19.5°C | 20.0°C | 19.5°C | 18.3°C | 16.5°C | 14.8°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.
Related lake comparisons
Want a different mix? Compare up to four lakes side by side or browse all lake water temperatures.
Explore every sea temperature page
Jump straight to a country, coastal region, city, seasonal ranking or comparison.