Lake Brno vs Lake Senec
Lake Senec is the warmer swim right now at about 23.5°C. They are roughly 130 km apart in Czechia and Slovakia.
Lake Brno
South Moravia
warm · modelled estimate
- September average
- 22.6°C
- Warmest month
- August · 24.0°C
- Coldest month
- 3.0°C
- Swim season
- June–October
Lake Brno in South Moravia, Czechia reaches comfortable swimming temperatures in July and August, and drops close to single digits in winter.
Lake Senec
Bratislava
warm · modelled estimate
- September average
- 23.5°C
- Warmest month
- August · 25.0°C
- Coldest month
- 3.0°C
- Swim season
- June–October
Lake Senec in Bratislava, Slovakia warms into the mid-20s °C for reliable summer swimming, and drops close to single digits in winter.
Month by month
| Lake | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lake Brno | 4.4°C | 3.0°C | 4.4°C | 8.3°C | 13.5°C | 18.8°C | 22.6°C | 24.0°C | 22.6°C | 18.8°C | 13.5°C | 8.3°C |
| Lake Senec | 4.5°C | 3.0°C | 4.5°C | 8.5°C | 14.0°C | 19.5°C | 23.5°C | 25.0°C | 23.5°C | 19.5°C | 14.0°C | 8.5°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.
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.