Weather in Guanacaste Region, Costa Rica in May

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

May is a hot and slightly rainy time for sunbathing in Guanacaste Region. May 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 May.

Temperature in Guanacaste Region in May

The average maximum temperature in Guanacaste Region in May is 33°. The average maximum temperature is 35° in the previous month and 31° in the next month.

The average temperature in Guanacaste Region in May is 28°. The average temperature ranges is 29° in the previous month and 27° in the next month.

The average minimum temperature in Guanacaste Region in May is 24°. The minimum temperature is 24° in the previous month and 24° in the next month.

Sunshine in Guanacaste Region in May

The average day light hours per day in Guanacaste Region in May are 12.6 and there are 6.2 hours of sunshine per day on average during May making it a quite sunny month with some cloud cover.

The ultraviolet index in Guanacaste Region in May is typically 14 during May. An ultraviolet index reading above 11 indicates an extreme risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 10 minutes. Take all precautions because unprotected skin and eyes can burn in minutes. 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 May

The average sea water temperature in Guanacaste Region in May is 28.3° which is very warm and ideal for relaxing and swimming for the whole day.

Rainfall in Guanacaste Region in May

The average total rainfall in Guanacaste Region in May is 17.4cm and on average there are 12 rainy days in May making it a slightly wet time to visit the beach.

Humidity in Guanacaste Region in May

The maximum dew point (an indicator of humidity) in Guanacaste Region in May is 23° which is very humid and quite uncomfortable for most unless you are on a beach. At night you would most likely require a fan. The dew point is 21° in the previous month and 24° in the next month.

The average maximum relative humidity in Guanacaste Region in May is typically 88.8%. The maximum relative humidity is 77.8% in the previous month and 93.5% in the next month.

The average relative humidity in Guanacaste Region in May is typically 66.1%. The average relative humidity is 49.8% in the previous month and 75.6% in the next month.

Wind Speed in Guanacaste Region in May

The average maximum wind speed in Guanacaste Region in May is typically 24kmh. The average maximum wind speed is 29kmh in the previous month and 20kmh in the next month.

The average wind speed in Guanacaste Region in May is typically 10kmh. The average wind speed is 14kmh in the previous month and 8kmh in the next month.

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

Monthly Averages

Suggested Beaches in May

Book Accomodation Deals