Updated
Grindstone Harbor
Bay
Cold water — serious cold-shock risk today
Cold waterCold water — serious cold-shock risk today: water temperature is 56°F, cold enough to cause cold-water shock on sudden immersion.
- Water temperature is 56°F, cold enough to cause cold-water shock on sudden immersion.
bay in San Juan County, Washington, United States of America
Interactive map not available
Cold water — serious cold-shock risk today
Cold waterCold water — serious cold-shock risk today: water temperature is 56°F, cold enough to cause cold-water shock on sudden immersion.
- Water temperature is 56°F, cold enough to cause cold-water shock on sudden immersion. — NOAA buoy 46088, as of Aug 23, 5:10 PM UTC
No official beach-advisory feed for Washington yet — follow posted signs and local guidance.
Live data from NOAA buoy 46088 (22.1 mi away), as of Aug 23, 5:10 PM UTC.
Weather at Grindstone Harbor
Sponsored gear checklist
Pack smarter for Grindstone Harbor
Useful gear categories for this kind of water spot. These links open Amazon search results so you can compare current options.
As an Amazon Associate we earn from qualifying purchases.
Frequently asked questions
- Where is Grindstone Harbor?
- Grindstone Harbor is a bay in Washington.
- What is the water temperature at Grindstone Harbor?
- As of August 23, 2026, the water temperature at Grindstone Harbor in Washington is 56°F (13°C), measured by NOAA buoy 46088, 22.1 miles away.
- Can you swim at Grindstone Harbor?
- Cold water — serious cold-shock risk today: water temperature is 56°F, cold enough to cause cold-water shock on sudden immersion. Checked August 23, 2026.
- What amenities does Grindstone Harbor have?
- Visitor-listed amenities at Grindstone Harbor include camping-nearby.
Advertisement
Visitor Reviews
Be the first to share your experience here
Join our community to share your water adventures
Earn badges as you share your experiences!
No reviews yet — share what you know
Been here? A quick note helps the next visitor plan their day. Handy things to mention:
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
Washington
</> Embed this location on your site
Paste this snippet into your website to show a live badge for Grindstone Harbor — free to use with the included credit link.