Chatfield Reservoir vs Horsetooth Reservoir
Chatfield Reservoir is the warmer swim right now at about 17.3°C. They are roughly 113 km apart in United States.
Chatfield Reservoir
Colorado
mild · modelled estimate
- October average
- 17.3°C
- Warmest month
- August · 22.0°C
- Coldest month
- 3.0°C
- Swim season
- July–September
Chatfield Reservoir in Colorado, United States reaches comfortable swimming temperatures in July and August, and drops close to single digits in winter.
Horsetooth Reservoir
Colorado
mild · modelled estimate
- October average
- 16.5°C
- Warmest month
- August · 21.0°C
- Coldest month
- 3.0°C
- Swim season
- July–September
Horsetooth Reservoir in Colorado, United States is swimmable in high summer, brisk either side of it, and drops close to single digits in winter.
Month by month
| Lake | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chatfield Reservoir | 4.3°C | 3.0°C | 4.3°C | 7.8°C | 12.5°C | 17.3°C | 20.7°C | 22.0°C | 20.7°C | 17.3°C | 12.5°C | 7.8°C |
| Horsetooth Reservoir | 4.2°C | 3.0°C | 4.2°C | 7.5°C | 12.0°C | 16.5°C | 19.8°C | 21.0°C | 19.8°C | 16.5°C | 12.0°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.
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.