Updated
Sherman Island
Park · Rio Vista, California
Comfortable for a swim today
Good to swimComfortable for a swim today: water temperature is 70°F, within the comfortable 70–86°F range.
- Water temperature is 70°F, within the comfortable 70–86°F range.
- No official beach advisory posted (California Water Boards — FHAB Reports checked).
Things to Do Near Sherman Island
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Comfortable for a swim today
Good to swimComfortable for a swim today: water temperature is 70°F, within the comfortable 70–86°F range.
- Water temperature is 70°F, within the comfortable 70–86°F range. — NOAA buoy PCOC1, as of Aug 22, 3:18 AM UTC
- No official beach advisory posted (California Water Boards — FHAB Reports checked).
Official advisories
Checked against California Water Boards — FHAB Reports — no advisory posted.
Live data from NOAA buoy PCOC1 (13.7 mi away), as of Aug 22, 3:18 AM UTC.
Weather at Sherman Island
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Frequently asked questions
- Where is Sherman Island?
- Sherman Island is a park in Rio Vista, California.
- What is the water temperature at Sherman Island?
- As of August 22, 2026, the water temperature at Sherman Island in Rio Vista, California is 70°F (21°C), measured by NOAA buoy PCOC1, 13.7 miles away.
- Can you swim at Sherman Island?
- Comfortable for a swim today: water temperature is 70°F, within the comfortable 70–86°F range. Checked August 22, 2026.
- How is Sherman Island rated?
- Sherman Island in Rio Vista, California has an average visitor rating of 4.5 out of 5, based on 558 reviews.
- What amenities does Sherman Island have?
- Visitor-listed amenities at Sherman Island include camping-nearby.
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Best Times to Visit
- ›Weekday mornings (8–10 AM) are typically less crowded
- ›Check the forecast 2–3 days ahead for best planning
- ›Avoid holiday weekends for a quieter experience
Location & Contact
4800w Sherman Island Rd, Rio Vista, CA 94571
Rio Vista, California 94571
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