Weather in Guanacaste Region, Costa Rica in December

So you're interested in going to Guanacaste Region, Costa Rica in December

December is a hot and extremely dry time for sunbathing in Guanacaste Region. December is an excellent month for swimming in Guanacaste Region with very warm sea temperatures. Consider visiting Guanacaste Region in the months of January, February, March, December, for the best beach weather. Also consider one of our other suggestions for December.

Temperature in Guanacaste Region in December

The average maximum temperature in Guanacaste Region in December is 32°. The average maximum temperature is 31° in the previous month and 33° in the next month.

The average temperature in Guanacaste Region in December is 27°. The average temperature ranges is 26° in the previous month and 28° in the next month.

The average minimum temperature in Guanacaste Region in December is 22°. The minimum temperature is 22° in the previous month and 23° in the next month.

Sunshine in Guanacaste Region in December

The average day light hours per day in Guanacaste Region in December are 11.5 and there are 7.3 hours of sunshine per day on average during December making it a quite sunny month with some cloud cover.

The ultraviolet index in Guanacaste Region in December is typically 10.4 during December. An ultraviolet index reading of 8 to 10 indicates a very high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 15 minutes. Take extra precautions because unprotected skin and eyes will be damaged and can burn quickly. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in Guanacaste Region in December

The average sea water temperature in Guanacaste Region in December is 25.5° which is warm and pleasant for relaxing and swimming for long periods.

Rainfall in Guanacaste Region in December

The average total rainfall in Guanacaste Region in December is 1.2cm and on average there are 1.9 rainy days in December making it an extremely dry time to visit the beach.

Humidity in Guanacaste Region in December

The maximum dew point (an indicator of humidity) in Guanacaste Region in December is 21° which is somewhat uncomfortable for most people in cities but fine on a beach. The dew point is 23° in the previous month and 19° in the next month.

The average maximum relative humidity in Guanacaste Region in December is typically 84.9%. The maximum relative humidity is 92.2% in the previous month and 77.3% in the next month.

The average relative humidity in Guanacaste Region in December is typically 59.9%. The average relative humidity is 70.9% in the previous month and 52.7% in the next month.

Wind Speed in Guanacaste Region in December

The average maximum wind speed in Guanacaste Region in December is typically 28kmh. The average maximum wind speed is 22kmh in the previous month and 33kmh in the next month.

The average wind speed in Guanacaste Region in December is typically 14kmh. The average wind speed is 9kmh in the previous month and 19kmh in the next month.

The average wind direction in Guanacaste Region in December is from the East.

Monthly Averages

Suggested Beaches in December

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