May weather forecast
Santa Ana, Costa Rica

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Weather in May

The month of May marks a significant phase in the weather of Santa Ana as the rainy season manifests in full swing. This period shows a substantial increase in rainfall from the previous month, accompanied by an increment in humidity. Often, reduced visibility due to heavier rains complement the intense tropical rains that characterize Santa Ana. An increase in temperature, from 18.5°C (65.3°F) to 25.9°C (78.6°F), coupled with a whopping 364mm (14.33") of precipitation over 28.7 days can be observed. Despite the overwhelming rainfall, the city’s tropical essence persists, evinced by its consistent temperature and sunshine hours.

Temperature

Santa Ana's average high-temperature in May sits at a still warm 25.9°C (78.6°F), showing little difference from the previous month. May nights are marked by an average temperature drop to a comfortable 18.5°C (65.3°F).

Humidity

In Santa Ana, the average relative humidity in May is 84%.

Rainfall

In May, in Santa Ana, Costa Rica, the rain falls for 28.7 days. Throughout May, 364mm (14.33") of precipitation is accumulated. In Santa Ana, Costa Rica, during the entire year, the rain falls for 289.2 days and collects up to 2603mm (102.48") of precipitation.

Daylight

The average length of the day in May in Santa Ana, Costa Rica, is 12h and 35min.
On the first day of May in Santa Ana, Costa Rica, sunrise is at 05:19 and sunset at 17:48. On the last day of the month, sunrise is at 05:14 and sunset at 17:54 CST.

Sunshine

In Santa Ana, the average sunshine in May is 7.2h.

UV index

The months with the lowest UV index in Santa Ana are January, February, May through December, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 5 in May interprets into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. The solar radiation around mid-day is intense; avoid the Sun and stay safe. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.

Frequently asked questions

What is the usual temperature for Santa Ana in May?

In May, the average high-temperature and low-temperature are 25.9°C (78.6°F) and 18.5°C (65.3°F) respectively. The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in April is evaluated at 31°C (87.8°F).

What is the average humidity in May in Santa Ana?

The average relative humidity in May in Santa Ana, Costa Rica, is 84%.

How much does it rain in Santa Ana in May?

In May, in Santa Ana, the rain falls for 28.7 days. Throughout May, 364mm (14.33") of precipitation is accumulated.

How many hours of daylight does Santa Ana have in May?

In May, the average day length in Santa Ana is 12h and 35min.

When is the sunrise / sunset in May in Santa Ana?

On the first day of May in Santa Ana, sunrise is at 05:19 and sunset at 17:48. On the last day of the month, sunrise is at 05:14 and sunset at 17:54 CST.

How long on average sun shines in May in Santa Ana?

In Santa Ana, Costa Rica, the average sunshine duration in May is 7.2h.

What are the months with the lowest UV index in Santa Ana?

The months with the lowest UV index in Santa Ana are January, February, May through December, with an average maximum UV index of 5.

What is the UV index reading in May in Santa Ana?

In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Santa Ana, Costa Rica

Average temperature in May - Santa Ana, Costa Rica
  • Average high temperature in May: 25.9°C

The warmest month (with the highest average high temperature) is April (28°C).
The month with the lowest average high temperature is October (23.7°C).

  • Average low temperature in May: 18.5°C

The month with the highest average low temperature is May (18.5°C).
The coldest month (with the lowest average low temperature) is January (15.3°C).

Average pressure in May
Santa Ana, Costa Rica

Average pressure in May - Santa Ana, Costa Rica
  • Average pressure in May: 1011.1mbar

The month with the highest atmospheric pressure is January (1012.2mbar).
The month with the lowest atmospheric pressure is October (1010.8mbar).

Average wind speed in May
Santa Ana, Costa Rica

Average wind speed in May - Santa Ana, Costa Rica
  • Average wind speed in May: 5km/h

The windiest month (with the highest average wind speed) is February (10.9km/h).
The calmest month (with the lowest average wind speed) is September (3.9km/h).

Average humidity in May
Santa Ana, Costa Rica

Average humidity in May - Santa Ana, Costa Rica
  • Average humidity in May: 84%

The month with the highest relative humidity is October (90%).
The month with the lowest relative humidity is March (71%).

Average rainfall in May
Santa Ana, Costa Rica

Average rainfall in May - Santa Ana, Costa Rica
  • Average rainfall in May: 364mm

The wettest month (with the highest rainfall) is October (429mm).
The driest month (with the least rainfall) is February (24mm).

Average rainfall days in May
Santa Ana, Costa Rica

Average rainfall days in May - Santa Ana, Costa Rica
  • Average rainfall days in May: 28.7 days

The month with the highest number of rainy days is October (30.5 days).
The month with the least rainy days is February (11.8 days).

Average daylight in May /
Average sunshine in May
Santa Ana, Costa Rica

Average daylight in May / Average sunshine in May - Santa Ana, Costa Rica
  • Average daylight in May: 12h and 4min

The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 36min).

  • Average sunshine in May: 7h and 1min

The month with the most sunshine is February (Average sunshine: 9h and 24min).
The month with the least sunshine is October (Average sunshine: 6h and 6min).

Average sunshine days in May
Santa Ana, Costa Rica

Average sunshine days in May - Santa Ana, Costa Rica
  • Average sunshine days in May: 1.3 days

The month with the most sunshine days is February (13.1 days).
The month with the least sunshine days is July (0.3 days).

Average UV index in May
Santa Ana, Costa Rica

Average UV index in May - Santa Ana, Costa Rica
  • Average UV index in May: 5

The months with the highest UV index are March and April (UV index 6).
The months with the lowest UV index are January, February, May, June, July, August, September, October, November and December (UV index 5).

Average cloud cover in May
Santa Ana, Costa Rica

Average cloud cover in May - Santa Ana, Costa Rica
  • Average cloud cover in May: 54

The month with the most cloud cover is October (Cloud cover 63).
The month with the least cloud cover is February (Cloud cover 23).

Average visibility in May
Santa Ana, Costa Rica

Average visibility in May - Santa Ana, Costa Rica
  • Average visibility in May: 8km

The months with the highest visibility are January, February, March and April (9km).
The months with the lowest visibility are September and October (6km).

Santa Ana, Costa Rica

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