Half Moon Bay Weather Conditions
Current Temperature Level
Half Moon Bay Weather Conditions
Current Temperature Level
Feels Like 14°C
Chances of Rain39%
15°39%12 PM15°39%1 PM
16°30%2 PM17°29%3 PM16°28%4 PM16°38%5 PM
15°41%6 PM14°43%7 PM14°46%8 PM14°49%9 PM14°36%10 PM14°36%11 PM14°33%12 AM14°35%1 AM14°35%2 AM14°35%3 AM14°34%4 AM14°33%5 AM14°33%6 AM14°30%7 AM14°30%8 AM14°26%9 AM
16°16%10 AM17°15%Mist may reduce visibility at times.
Last Updated: 2026-08-18 11:15 (Local Time)
287°WNW
Direction
13.3km/h
Wind Speed
Gust Speed
8.6m/s
Precipitation
Precipitation
0.06mm
Pressure
1019mb
UV Index
5.6High
Today
14
°C
97%Wednesday
15
°C87%Thursday
15
°C88%Friday
15
°C89%Saturday
15
°C86%Sunday
15
°C88%Monday
15
°C86%Tuesday
15
°C86%Wednesday
17
°C80%Thursday
17
°C78%Fog
Dense fog throughout the day. Humidity will be near 97%, with winds at 18.7 km/h.17°C / 13°C
Humi.97 %
Prec.1.15 mm
Sunrise
06:28 AM13hrs 30min
Sunset
07:58 PMTime
Condition
Temp
Humidity
UV
Wind Speed & Dir.
12 AM
Mist
14 °C
96 %
0
12.6 kmph / NW
Mist
Feels 12 °C
Cover 98 %
Visibility 10 km
1 AM
Mist
13 °C
97 %
0
10.8 kmph / NW
MistFeels 12 °C
Cover 100 %
Visibility 10 km
2 AM
Fog
13 °C
100 %
0
7.9 kmph / WNW
FogFeels 12 °C
Cover 100 %
Visibility 10 km
3 AM
Fog
13 °C
100 %
0
9.7 kmph / WNW
FogFeels 13 °C
Cover 100 %
Visibility 10 km
4 AM
Fog
14 °C
99 %
0
8.6 kmph / WNW
FogFeels 13 °C
Cover 100 %
Visibility 10 km
5 AM
Fog
14 °C
100 %
0
10.1 kmph / NW
FogFeels 13 °C
Cover 100 %
Visibility 10 km
6 AM
Fog
14 °C
100 %
0
10.1 kmph / NW
FogFeels 13 °C
Cover 100 %
Visibility 10 km
7 AM
Fog
13 °C
100 %
0.1
11.5 kmph / NW
FogFeels 12 °C
Cover 100 %
Visibility 10 km
8 AM
Fog
13 °C
100 %
0.6
11.5 kmph / NW
FogFeels 12 °C
Cover 100 %
Visibility 10 km
9 AM
Fog
14 °C
99 %
1.7
11.2 kmph / WNW
FogFeels 13 °C
Cover 100 %
Visibility 10 km
10 AM
Fog
14 °C
97 %
3.3
12.6 kmph / WNW
FogFeels 13 °C
Cover 100 %
Visibility 10 km
11 AM
Mist
15 °C
95 %
5.6
13.3 kmph / WNW
MistFeels 14 °C
Cover 100 %
Visibility 10 km
12 PM
Mist
15 °C
96 %
7.4
14 kmph / WNW
MistFeels 14 °C
Cover 100 %
Visibility 10 km
1 PM
Patchy rain nearby
16 °C
91 %
8.8
15.1 kmph / WNW
Patchy rain nearbyFeels 15 °C
Cover 77 %
Visibility 10 km
2 PM
Patchy rain nearby
17 °C
89 %
8.2
15.5 kmph / WNW
Patchy rain nearbyFeels 15 °C
Cover 77 %
Visibility 10 km
3 PM
Patchy rain nearby
16 °C
90 %
6.4
17.3 kmph / WNW
Patchy rain nearbyFeels 15 °C
Cover 68 %
Visibility 10 km
4 PM
Patchy rain nearby
16 °C
93 %
4.2
18.7 kmph / WNW
Patchy rain nearbyFeels 14 °C
Cover 100 %
Visibility 10 km
5 PM
Fog
15 °C
99 %
2.2
17.3 kmph / WNW
FogFeels 13 °C
Cover 100 %
Visibility 10 km
6 PM
Fog
14 °C
100 %
0.9
16.2 kmph / WNW
FogFeels 12 °C
Cover 100 %
Visibility 10 km
7 PM
Fog
14 °C
100 %
0.2
15.8 kmph / WNW
FogFeels 12 °C
Cover 100 %
Visibility 10 km
8 PM
Fog
14 °C
100 %
0
16.6 kmph / NW
FogFeels 12 °C
Cover 100 %
Visibility 10 km
9 PM
Patchy rain nearby
14 °C
93 %
0
17.3 kmph / NW
Patchy rain nearbyFeels 11 °C
Cover 99 %
Visibility 10 km
10 PM
Patchy rain nearby
14 °C
92 %
0
15.8 kmph / NW
Patchy rain nearbyFeels 12 °C
Cover 100 %
Visibility 10 km
11 PM
Patchy rain nearby
14 °C
91 %
0
13.7 kmph / NW
Patchy rain nearbyFeels 12 °C
Cover 100 %
Visibility 10 km
20°13°
23°12°18°12°19°13°18°13°18°14°16°13°17°14°19°14°18°13°16°14°19°14°18°14°17°15°18°14°18°13°18°13°
17°14°18°14°17°13°17°14°17°14°17°14°17°14°18°14°21°14°22°14°21°14°21°14°20°14°20°14°AugustWeather Overview
No. of days:
Sunny
3
Cloudy
5
Rainy
7
Snowy
0
The monthly weather averages in Half Moon Bay consist of 3 sunny days, 5 cloudy days, 7 rainy days, and 0 snowy days.
Half Moon Bay's Locations Weather Conditions
United States's Hottest Cities - August 2026
1.
Indio, California
47 °C
Sunny
10%
7.4
9.7 kmph / SSE
2.
Mecca, California
47 °C
Sunny
11%
7.6
9.7 kmph / SSE
3.
North Shore, California
47 °C
Sunny
11%
7.6
9.7 kmph / SSE
4.
El Centro, California
46 °C
Sunny
13%
8.3
12.6 kmph / SE
5.
Calexico, California
45 °C
Sunny
14%
8.6
12.6 kmph / SE
6.
Salton City, California
45 °C
Sunny
10%
7.7
7.9 kmph / SE
7.
Blythe, California
45 °C
Sunny
12%
8.6
18.4 kmph / SSW
8.
Brawley, California
45 °C
Sunny
12%
8.4
8.6 kmph / SSE
9.
Westmorland, California
45 °C
Sunny
12%
8.4
8.6 kmph / SSE
10.
Calipatria, California
45 °C
Sunny
13%
8.3
8.6 kmph / SSE
Last Updated: 18 Aug 2026, 06:40 PM
City Weather RankingsFAQs About Half Moon Bay Weather Conditions
1. What is the current temperature in Half Moon Bay today - 18 August 2026?
1. What is the current temperature in Half Moon Bay today - 18 August 2026?
The current temperature in Half Moon Bay is 15°C, with a feels-like temperature of 14°C. Today's forecast shows a high of 17°C and a low of 13°C, giving a 4 degree swing through the day as of 11:15 AM 18 August 2026.
2. What are the current weather parameters in Half Moon Bay today?
2. What are the current weather parameters in Half Moon Bay today?
Here is a complete overview of Half Moon Bay's current weather conditions as of 11:15 AM 18 August 2026: Condition : Mist Temperature : 15°C Cool (Feels like 14°C) Humidity : 95% Wind Speed : 13.3 km/h from WNW (287 degrees), Gust 8.7 m/s UV Index : 5.6 (High Air Pressure : 1019 mb Cloud Cover : 100% Visibility : 10 km Precipitation : 0.06 mm (77% chance of rain)
3. What is the 10-day weather forecast for Half Moon Bay from 11:15 AM 18 August 2026?
3. What is the 10-day weather forecast for Half Moon Bay from 11:15 AM 18 August 2026?
From 11:15 AM 18 August 2026, Half Moon Bay's 10-day forecast shows this trend: Today (Aug. 18) : Temp. 14°C, Hum. 97% and Fog condition. Wednesday (Aug. 19) : Temp. 15°C, Hum. 87% and Patchy rain nearby condition. Thursday (Aug. 20) : Temp. 15°C, Hum. 88% and Patchy rain nearby condition. Friday (Aug. 21) : Temp. 15°C, Hum. 89% and Overcast condition. Saturday (Aug. 22) : Temp. 15°C, Hum. 86% and Partly Cloudy condition. Sunday (Aug. 23) : Temp. 15°C, Hum. 88% and Cloudy condition. Monday (Aug. 24) : Temp. 15°C, Hum. 86% and Patchy rain nearby condition. Tuesday (Aug. 25) : Temp. 15°C, Hum. 86% and Cloudy condition. Wednesday (Aug. 26) : Temp. 17°C, Hum. 80% and Rain Possible condition. Thursday (Aug. 27) : Temp. 17°C, Hum. 78% and Rain Possible condition.
4. Will it rain in Half Moon Bay today?
4. Will it rain in Half Moon Bay today?
As of 11:15 AM 18 August 2026, yes — Half Moon Bay is currently experiencing rainfall with 0.06 mm of precipitation. This is expected to temporarily improve AQI by washing pollutants out of the atmosphere.
5. What is the monthly weather forecast for Half Moon Bay in August 2026?
5. What is the monthly weather forecast for Half Moon Bay in August 2026?
August 2026 in Half Moon Bay is forecast to have 3 sunny days, 7 rainy days, 5 cloudy days, and 0 snowy days. Temperatures for the month range from lows around 12°C to highs of 23°C.
6. How does the weather in Half Moon Bay affect air quality?
6. How does the weather in Half Moon Bay affect air quality?
Weather directly impacts air quality in Half Moon Bay. Calm winds, high humidity, fog, and high pressure trap pollutants near the ground, worsening AQI. Strong winds, rainfall, and low pressure help disperse them. Rising temperatures and UV levels intensify ozone and smog formation, while poor visibility signals elevated particulate matter. Monitoring weather alongside AQI gives the clearest picture of outdoor safety.
