Puerto Peñasco Water Temperature by Month (and When It's Warm Enough to Swim)
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The water in Puerto Peñasco is warmest from July through September, often in the mid to high 80s °F, and coldest from January through March, when it drops to around 60°F. Most people find swimming comfortable from about June through October. Shallow tide pools and flats heat up much faster than open water, so kids can play comfortably in them months earlier.
Check Today's Water Temperature
Sea temperature changes slowly, so the monthly averages below are a reliable guide for planning. For a reading on the day you arrive, search for the current sea surface temperature for Puerto Peñasco in a marine weather or surf app. Remember that the shallow water over the flats in Cholla Bay is often several degrees warmer than the open sea on a sunny afternoon.
See Average Sea Temperatures by Month
| Month | Water temp | Swim comfort |
|---|---|---|
| January | ~60°F (16°C) | Wetsuit only |
| February | ~59°F (15°C) | Wetsuit only |
| March | ~62°F (17°C) | Brief dips, wetsuit recommended |
| April | ~66°F (19°C) | Refreshing for the brave |
| May | ~72°F (22°C) | Comfortable on warm afternoons |
| June | ~79°F (26°C) | Comfortable |
| July | ~85°F (29°C) | Warm |
| August | ~88°F (31°C) | Very warm |
| September | ~87°F (31°C) | Very warm |
| October | ~80°F (27°C) | Comfortable |
| November | ~70°F (21°C) | Cool |
| December | ~63°F (17°C) | Wetsuit only |
Approximate averages for the Northern Gulf of California near Puerto Peñasco.
Know When Swimming Is Comfortable
- Kids and casual swimmers: June through October
- Strong swimmers who like it brisk: May and November
- Snorkelers and paddlers: a thin wetsuit extends your season from March to December
Understand Why Tide Pools Feel Warmer
When the tide goes out, shallow pools and sand flats sit in the sun for hours. On a sunny spring afternoon they can feel much warmer than the open water. That is why low tide in Cholla Bay is a favorite for kids even when the sea is still cool. Check the tide chart to find low tide.
Swim Safely: Stingrays, Jellyfish, and Currents
- Stingrays: they rest in shallow sandy water. Shuffle your feet as you walk so they swim away before you step on them.
- Jellyfish: more common in some seasons. Ask locals or look for them on the sand before you swim.
- Incoming tide: it moves quickly across the flats. Keep an eye on the time when you are far out.
- Sun: reef-safe sunscreen and rash guards help a lot in summer.
Choose the Best Beach for Swimming
- Sandy Beach: wide sand and a gentle slope, best for swimming near high tide. Guide
- Cholla Bay: calm, shallow water at high tide, tide pools at low tide. Guide
See how beachfront compares to beach access in our beachfront rentals guide.
Frequently Asked Questions
Is the water warm in Rocky Point?
It depends on the season. The water is warmest in late summer, often in the mid to high 80s °F, and coldest in winter, when it can drop to around 60°F.
When can you swim in Rocky Point?
Most people find swimming comfortable from about June through October. Spring swims are possible on warm days, and a wetsuit helps in cooler months.
Are there stingrays in Rocky Point?
Yes. Stingrays live in shallow sandy areas. Shuffle your feet as you walk in the water so they move away before you step on them.
Plan a Beach Trip
Cholla Bay Vista is about 100 feet from the water in Cholla Bay and about 10 minutes from Sandy Beach.