Photo: Wikipedia · Half Moon Bay, California
Half Moon Bay is looking at about 65°F for 2026-08-22 – 2026-08-23 — here's how to use that forecast.
Should you plan around Half Moon Bay's forecast this weekend?
Weekend strip
Half Moon Bay 65°F · 0.10" rain
Half Moon Bay, California
Weekend air in Half Moon Bay sits near 65°F / 54°F, plus only light rain on the books (~0.10 in) — enough to decide whether the trip is on.
Use the outlook as the itinerary filter: plan the outdoor pieces when 65°F feels right, and keep a café backup if clouds show up.
If the numbers still look good by Friday, lock the plan around 65°F — not a vague “nice weather somewhere.”
Things to do
Bottom line
Half Moon Bay this weekend: treat 65°F as the planning anchor, then build the itinerary around what you actually want to do.
Keep planning
Updated August 20, 2026. Not a substitute for local advisories.