Weather World
City of Half Moon Bay, CaliforniaHalf Moon Bay, CA Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Half Moon Bay Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY |
 |  |  |  | |  |  |  | | |  | |
| Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Cloudy | Chance of Rain | Mostly Clear | Mostly Clear | Mostly Cloudy | Mostly Cloudy | Chance of Rain | Chance of Rain |
| Hi: 65°FHi: 18°C | Lo: 50°FLo: 10°C | Hi: 61°FHi: 16°C | Lo: 46°FLo: 8°C | Hi: 61°FHi: 16°C | Lo: 46°FLo: 8°C | Hi: 61°FHi: 16°C Lo: 46°FLo: 8°C | Hi: 61°FHi: 16°C Lo: 46°FLo: 8°C | Hi: 69°FHi: 21°C Lo: 50°FLo: 10°C | Hi: 69°FHi: 21°C Lo: 50°FLo: 10°C | Hi: 69°FHi: 21°C Lo: 50°FLo: 10°C | Hi: 69°FHi: 21°C Lo: 50°FLo: 10°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 602 AM PDT Thu Oct 29 2026 
Half Moon Bay Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Half Moon Bay Weather Map
Half Moon Bay Quick Facts
Half Moon Bay Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 448 AM PDT Thu Oct 29 2026
Key Messages
Updated at 1203 AM PDT Thu Oct 29 2026- Moderate coastal flooding at high tide for Bayshore and Pacific Coast locations through Friday and Saturday
- Seasonal to slightly below seasonal temperatures through the extended forecast
- Potential for rain this weekend and again early to mid next week
Aviation
... (12Z TAFS) Issued at 444 AM PDT Thu Oct 29 2026
VFR. Weak offshore flow continues this morning with a gradual shift to weak onshore flow later today and tonight. The marine layer will sti...