Boiling River Water Temperature Today
Boiling River, a natural swimming hole in Wyoming, United States. The water warms into the mid-20s °C and holds it through the swim season, and is mild even in winter.
In August Boiling River averages about 32°C, peaking near 32°C in July, August, September and dropping to roughly 25°C at its coldest.
River and swimming-hole temperatures are modelled from long-term monthly averages and refined with live air temperature, wind and UV. Moving water reacts faster to the weather than a lake or the sea.
Boiling River water temperature by month
| Month | Average water temperature | Swimming |
|---|---|---|
| January | 25.5°C | hot |
| February | 25.0°C | hot |
| March | 25.5°C | hot |
| April | 26.8°C | hot |
| May | 28.5°C | tropical |
| June | 30.3°C | tropical |
| July | 31.5°C | tropical |
| August | 32.0°C | tropical |
| September | 31.5°C | tropical |
| October | 30.3°C | tropical |
| November | 28.5°C | tropical |
| December | 26.8°C | hot |
Boiling River swim conditions FAQ
What is the water temperature in Boiling River right now?
In August the water in Boiling River averages about 32°C. We refine that long-term average with today's air temperature, because this swimming hole responds quickly to the weather.
When is the best time to swim in Boiling River?
The comfortable swim season — 18°C or warmer — runs through January, February, March, April, May, June, July, August, September, October, November, December, with the warmest water in July, August, September at around 32°C.
Can you swim in Boiling River in winter?
Yes, but winter temperatures drop to roughly 25°C. Below 12°C, cold-water shock is the main risk: enter slowly, never swim alone, and limit time in the water.
Is Boiling River safe for swimming?
Moving and inland water carries different risks from the sea: check flow after rain, avoid weirs and undercut banks, look for submerged rocks before jumping, and respect local access rules and water-quality notices.
Water safety tips
- Check the flow rate after heavy rain — inland water can rise and speed up within hours.
- Never jump before checking depth and submerged rocks; levels change through the season.
- Enter slowly to control cold-water shock, and get out before you start shivering.
- Swim with someone else and agree an exit point downstream before you start.
Swim season here: January, February, March, April, May, June, July, August, September, October, November, December.
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