• Today

    May 4

    57°Lo 48°

    Low clouds may break; cool

    Advisory for hair frizz
    • Wind
      Gust
      17 mph
    • Precip
      2%
    • Hours of Precip
      0
    more
  • Tue

    May 5

    57°Lo 48°

    Low clouds break for some sun

    Advisory for hair frizz
    • Wind
      Gust
      23 mph
    • Precip
      3%
    • Hours of Precip
      0
  • Wed

    May 6

    59°Lo 49°

    Sunny to partly cloudy

    Watch for hair frizz
    • Wind
      Gust
      31 mph
    • Precip
      6%
    • Hours of Precip
      0
    more
  • Thu

    May 7

    59°Lo 47°

    Mostly sunny

    Advisory for hair frizz
    • Wind
      Gust
      27 mph
    • Precip
      6%
    • Hours of Precip
      0
    more
  • Fri

    May 8

    57°Lo 48°

    Mostly cloudy

    Advisory for hair frizz
    • Wind
      Gust
      17 mph
    • Precip
      2%
    • Hours of Precip
      0
    more
Next Previous
Hi 57° RealFeel® 58° Precipitation 3%

Day

N

E

S

W

  • WSW 14 mph
  • Gusts: 23 mph

Low clouds breaking for some sun

  • Max UV Index: 8 (Very High)
  • Thunderstorms: 3%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 48° RealFeel® 40° Precipitation 3%

Night

N

E

S

W

  • SW 14 mph
  • Gusts: 21 mph

Patchy clouds

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - May 5

more Historical Weather Data >
  Today Normal Record 5/5/2014
High 57° 61° N/A 59°
Low 48° 46° N/A 50°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:10 AM with 13:53 of sunlight, then sets at 8:03 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:45 PM with 10:27 of moolight, then sets at 8:12 AM

Half Moon Bay Weather Report

San Francisco: Seasonable Temperatures to Continue Through Week

May 4, 2015; 7:42 AM ET

A pattern of seasonable temperatures will continue through the first part of the new week, with low clouds in the morning and sunny conditions through the afternoon. more >

The History Behind the UV Index

Nov 12, 2012; 5:00 AM ET The UV index has been around since the early 1990s. It was created to help you plan outdoor activities in hopes to limit overexposure to the sun. Jeannette Calle has more.

Tue. Hair Frizz

Tue. Wind Maps

Tue. UV Index