Weather in Guanacaste Region, Costa Rica in May

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Visiting Guanacaste Region, Costa Rica in May

The weather in May is marginally cooler than the previous month and temperatures continue to drop slightly into June. May has average maximum temperatures of 33°C (92°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 49.5% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.2 hours of sunshine per day. It is a good time for sunbathing in Guanacaste Region.

May has total rainfall of 17.4cm (6.9inches) making it often dry with only moderate showers. There are only 12 days with some rainfall so you can still enjoy the beach on the many clear days.

Sea temperatures are a very warm 28°C (83°F). May is an excellent month for swimming in Guanacaste Region with very comfortable temperatures for bathing all day. The sea temperature in May is marginally cooler than the previous month and temperatures continue to drop slightly into June.

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.

Can you sunbathe in Guanacaste Region in May?

Yes, May is a good time for sunbathing in Guanacaste Region.

May has average maximum temperatures of 33°C (92°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 49.5% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.2 hours of sunshine per day. May has total rainfall of 17.4cm (6.9inches) making it often dry with only moderate showers. There are only 12 days with some rainfall so you can still enjoy the beach on the many clear days.

More about May temperature and sunshine.

Can you swim in Guanacaste Region in May?

Yes, May is an excellent month for swimming in Guanacaste Region with very warm sea temperatures 28°C (83°F).

More about May sea temperatures.

Is May a good time to holiday in Guanacaste Region?

Yes, May is a good time for a holiday in Guanacaste Region.

May has average maximum temperatures of 33°C (92°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 49.5% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.2 hours of sunshine per day. May has total rainfall of 17.4cm (6.9inches) making it often dry with only moderate showers. There are only 12 days with some rainfall so you can still enjoy the beach on the many clear days. It is a good time for sunbathing in Guanacaste Region. Sea temperatures are a very warm 28°C (83°F). May is an excellent month for swimming in Guanacaste Region with very comfortable temperatures for bathing all day.

More about the May temperatures and sunshine.

Is Guanacaste Region warm in May?

Yes, Guanacaste Region is very hot and perfect for sunbathing on clear days in May.

The average maximum temperature in Guanacaste Region in May is 33°C (92°F). The average maximum temperature is 35°C (95°) in the previous month and 31°C (89°F) in the next month.

The average temperature in Guanacaste Region in May is 28°C (83°F). The average temperature is 29°C (84°F) in the previous month and 27°C (81°F) in the next month.

More info about the May temperatures and sunshine.

How sunny is Guanacaste Region in May?

The average day light hours per day in Guanacaste Region in May are 12.6. The sunshine percentage is 49.5% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.2 hours of sunshine per day.

More about May sunshine.

Temperature in Guanacaste Region in May

The weather in May is marginally cooler than the previous month and temperatures continue to drop slightly into June. The average maximum temperature in Guanacaste Region in May is 33°C (92°F). The average maximum temperature is 35°C (95°F) in the previous month and 31°C (89°F) in the next month.

The average temperature in Guanacaste Region in May is 28°C (83°F). The average temperature is 29°C (84°F) in the previous month and 27°C (81°F) in the next month.

The average minimum temperature in Guanacaste Region in May is 24°C (75°F). The minimum temperature is 24°C (74°F) in the previous month and 24°C (74°F) in the next month.

Sunshine in Guanacaste Region in May

The days in May are marginally longer than the previous month and the days continue to get marginally longer into June. May has far fewer hours of sunshine than the previous month and hours of sunshine continue to drop into June. During May the average day light hours are 12.6 per day in Guanacaste Region. The sunshine percentage is 49.5% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.2 hours of sunshine per day.

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°C (82.9°F) which is very warm and ideal for relaxing and swimming for the whole day. The sea temperature in May is marginally cooler than the previous month and temperatures continue to drop slightly into June.

Rainfall in Guanacaste Region in May

May weather is much wetter than the previous month. May has more days of rain than the previous month and rainy days continue to rise into June. The average total rainfall in Guanacaste Region in May is 17.4cm (6.9inches) and on average there are 12 rainy days in May making it a pretty 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°C (74°F) 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°C (69°F) in the previous month and 24°C (24°F) 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 24KM/H (15MPH). The average maximum wind speed is 29KM/H (18MPH) in the previous month and 20KM/H (13MPH) in the next month.

The average wind speed in Guanacaste Region in May is typically 10KM/H (6MPH). The average wind speed is 14KM/H (9MPH) in the previous month and 8KM/H (5MPH) in the next month.

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

Monthly Averages

Suggested Beaches in May

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Need Inspiration?

Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.