Half Moon Bay Weather Conditions
Current Temperature Level
Half Moon Bay Weather Conditions
Current Temperature Level
Feels Like 13°C
Chances of Rain47%
14°47%12 AM14°48%1 AM14°49%2 AM
13°49%3 AM13°50%4 AM13°50%5 AM13°51%6 AM13°53%7 AM13°55%8 AM13°55%9 AM13°55%10 AM
17°15%11 AM17°13%12 PM18°18%1 PM
18°13%2 PM17°14%3 PM17°14%4 PM17°14%5 PM16°15%6 PM15°17%7 PM
15°25%8 PM14°28%9 PM14°30%10 PM14°27%Fog may develop and affect travel visibility.
Last Updated: 2026-08-18 23:30 (Local Time)
306°NW
Direction
13.7km/h
Wind Speed
Gust Speed
4.6m/s
Precipitation
Precipitation
0.12mm
Pressure
1016mb
UV Index
0Low
Today
14
°C
98%Wednesday
15
°C91%Thursday
15
°C88%Friday
15
°C88%Saturday
15
°C85%Sunday
15
°C88%Monday
15
°C86%Tuesday
15
°C87%Wednesday
17
°C80%Thursday
17
°C78%Fog
Dense fog throughout the day. Humidity will be near 98%, with winds at 17.3 km/h.17°C / 13°C
Humi.98 %
Prec.0.5 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 / WNW
FogFeels 12 °C
Cover 100 %
Visibility 10 km
9 AM
Overcast
15 °C
94 %
1.6
11.2 kmph / WNW
OvercastFeels 14 °C
Cover 100 %
Visibility 10 km
10 AM
Mist
15 °C
96 %
3.5
11.2 kmph / WNW
MistFeels 14 °C
Cover 100 %
Visibility 10 km
11 AM
Fog
15 °C
100 %
5.8
13.7 kmph / WNW
FogFeels 13 °C
Cover 100 %
Visibility 10 km
12 PM
Mist
15 °C
96 %
7.7
13.7 kmph / WNW
MistFeels 14 °C
Cover 100 %
Visibility 10 km
1 PM
Fog
15 °C
98 %
8.6
14.4 kmph / W
FogFeels 14 °C
Cover 100 %
Visibility 10 km
2 PM
Patchy rain nearby
17 °C
93 %
8.2
13.7 kmph / W
Patchy rain nearbyFeels 16 °C
Cover 100 %
Visibility 10 km
3 PM
Patchy rain nearby
16 °C
94 %
6.8
15.1 kmph / WNW
Patchy rain nearbyFeels 15 °C
Cover 100 %
Visibility 10 km
4 PM
Overcast
17 °C
92 %
4.7
17.3 kmph / WNW
OvercastFeels 15 °C
Cover 100 %
Visibility 10 km
5 PM
Overcast
15 °C
96 %
2.4
17.3 kmph / WNW
OvercastFeels 13 °C
Cover 100 %
Visibility 10 km
6 PM
Fog
15 °C
99 %
0.9
15.8 kmph / WNW
FogFeels 13 °C
Cover 100 %
Visibility 10 km
7 PM
Fog
15 °C
100 %
0.2
15.5 kmph / WNW
FogFeels 13 °C
Cover 100 %
Visibility 10 km
8 PM
Fog
14 °C
100 %
0
16.2 kmph / NW
FogFeels 12 °C
Cover 100 %
Visibility 10 km
9 PM
Fog
14 °C
100 %
0
16.6 kmph / NW
FogFeels 12 °C
Cover 100 %
Visibility 10 km
10 PM
Fog
14 °C
100 %
0
15.8 kmph / NW
FogFeels 13 °C
Cover 100 %
Visibility 10 km
11 PM
Fog
14 °C
100 %
0
13.7 kmph / NW
FogFeels 13 °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°13°18°13°17°13°17°14°18°14°18°14°17°13°17°13°21°14°22°14°21°14°21°14°20°14°20°14°AugustWeather Overview
No. of days:
Sunny
2
Cloudy
4
Rainy
10
Snowy
0
The monthly weather averages in Half Moon Bay consist of 2 sunny days, 4 cloudy days, 10 rainy days, and 0 snowy days.
Half Moon Bay's Locations Weather Conditions
United States's Hottest Cities - August 2026
1.
Park Village, California
38 °C
Overcast
13%
0
5 kmph / S
2.
Casa Grande, Arizona
37 °C
Clear
16%
0
14 kmph / ESE
3.
Fountain Hills, Arizona
36 °C
Overcast
17%
0
11.9 kmph / NE
4.
Fort McDowell, Arizona
36 °C
Overcast
17%
0
11.9 kmph / NE
5.
Indio, California
36 °C
Clear
19%
0
12.6 kmph / NW
6.
North Shore, California
36 °C
Partly Cloudy
19%
0
12.6 kmph / NW
7.
Mecca, California
36 °C
Partly Cloudy
19%
0
12.6 kmph / NW
8.
Calipatria, California
36 °C
Clear
17%
0
21.2 kmph / SE
9.
Surprise, Arizona
36 °C
Cloudy
18%
0
8.6 kmph / S
10.
Sacaton, Arizona
36 °C
Clear
18%
0
14 kmph / ESE
Last Updated: 19 Aug 2026, 06:45 AM
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 14°C, with a feels-like temperature of 13°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 11:30 PM 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 11:30 PM 18 August 2026: Condition : Fog Temperature : 14°C Cool (Feels like 13°C) Humidity : 100% Wind Speed : 13.7 km/h from NW (306 degrees), Gust 4.6 m/s UV Index : 0 (Low Air Pressure : 1016 mb Cloud Cover : 100% Visibility : 10 km Precipitation : 0.12 mm (66% chance of rain)
3. What is the 10-day weather forecast for Half Moon Bay from 11:30 PM 18 August 2026?
3. What is the 10-day weather forecast for Half Moon Bay from 11:30 PM 18 August 2026?
From 11:30 PM 18 August 2026, Half Moon Bay's 10-day forecast shows this trend: Today (Aug. 18) : Temp. 14°C, Hum. 98% and Fog condition. Wednesday (Aug. 19) : Temp. 15°C, Hum. 91% and Light Drizzle condition. Thursday (Aug. 20) : Temp. 15°C, Hum. 88% and Overcast condition. Friday (Aug. 21) : Temp. 15°C, Hum. 88% and Overcast condition. Saturday (Aug. 22) : Temp. 15°C, Hum. 85% and Partly Cloudy condition. Sunday (Aug. 23) : Temp. 15°C, Hum. 88% and Cloudy condition. Monday (Aug. 24) : Temp. 15°C, Hum. 86% and Partly Cloudy condition. Tuesday (Aug. 25) : Temp. 15°C, Hum. 87% and Partly 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 11:30 PM 18 August 2026, yes — Half Moon Bay is currently experiencing rainfall with 0.12 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 2 sunny days, 10 rainy days, 4 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.
