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United StatesThe weather in October in Half Moon Bay
It's pleasantly warm in October in Half Moon Bay with an average temperature of 20°C. Temperatures this month range from a low of 18°C to a high of 22°C. At night, you can expect temperatures between 10°C and 13°C.
Looking for great weather? October is a good time to be in Half Moon Bay. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in October for Half Moon Bay, California. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 34°C in 2017, Half Moon Bay reached the highest temperature in October over the past 10 years. The lowest daytime temperature in this month was 13°C in 2017. The extreme nighttime temperatures ranged from a lowest recorded value of 4°C to a highest value of 22°C.
Rainfall amount
In October, there is an average of 23 mm of precipitation, spread over 4 days. The wind speed is around 4 Bft, mostly coming from the West.
Daily weather in October for Half Moon Bay
Click on any day in October to get detailed info about the usual weather on that day in Half Moon Bay. Check out the historical temperatures and precipitation over the past 10 years on this day.
October weather comparison
| Half Moon Bay | New York | |
|---|---|---|
| Average temperature | 20°C | 21°C |
| Max. temperature | 22°C | 26°C |
| Min. temperature | 10°C | -5°C |
| Total precipitation | 23 mm | 119 mm |
| Rainy days | 4 days | 13 days |
Start of October
The month of October starts in Half Moon Bay with mild temps, averaging around 21°C during the day and nights around 12°C.
Mid October
By mid-October, daytime temps stay steady at around 21°C, with nights around 12°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
End of October
By the end of October, the average daytime temperature in Half Moon Bay is around 20°C, while nighttime temps are about 11°C. A shower might pop up, but overall, the weather will be dry and sunny.
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UV index
The UV index is a maximum of 4 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Check out the climate of Half Moon Bay for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in October in Half Moon Bay, California. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in October in Half Moon Bay
Temperature in October in Half Moon Bay over the years
Precipitation charts
These charts show the average amount of precipitation in October in Half Moon Bay, California. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in October in Half Moon Bay
Total precipitation in October in Half Moon Bay over the years
Daily UV index in October in Half Moon Bay
This chart shows the average daily UV index in October in Half Moon Bay, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in October in Half Moon Bay
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Average weather in Half Moon Bay by month
Click on a month below to see detailed weather info for Half Moon Bay. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.