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Cayman IslandsThe weather in December in Half Moon Bay
It's hot in December in Half Moon Bay with an average temperature of 30°C. Temperatures this month range from a low of 29°C to a high of 30°C. At night, you can expect temperatures between 22°C and 26°C.
December is a good month to be in Half Moon Bay for sunny weather. You’ll have high temperatures and 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 December for Half Moon Bay, Cayman Islands. 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 39°C in 2015, Half Moon Bay reached the highest temperature in December over the past 10 years. The lowest daytime temperature in this month was 24°C in 2020. The extreme nighttime temperatures ranged from a lowest recorded value of 2°C to a highest value of 27°C.
Rainfall amount
In December, there is an average of 75 mm of precipitation, spread over 11 days. The wind speed is around 5 Bft, mostly coming from the East.
Daily weather in December for Half Moon Bay
Click on any day in December 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.
December weather comparison
| Half Moon Bay | New York | |
|---|---|---|
| Average temperature | 30°C | 9°C |
| Max. temperature | 30°C | 12°C |
| Min. temperature | 22°C | -5°C |
| Total precipitation | 75 mm | 133 mm |
| Rainy days | 11 days | 17 days |
Start of December
The month of December starts in Half Moon Bay with hot temps, averaging around 30°C during the day and nights around 25°C.
Mid December
By mid-December, daytime temps stay steady at around 30°C, with nights around 25°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of December
By the end of December, the average daytime temperature in Half Moon Bay is around 30°C, while nighttime temps are about 25°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 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 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 December in Half Moon Bay, Cayman Islands. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in December in Half Moon Bay
Temperature in December in Half Moon Bay over the years
Precipitation charts
These charts show the average amount of precipitation in December in Half Moon Bay, Cayman Islands. 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 December in Half Moon Bay
Total precipitation in December in Half Moon Bay over the years
Daily UV index in December in Half Moon Bay
This chart shows the average daily UV index in December 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 December 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.