April weather forecast
Grecia, Costa Rica

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Weather in April

April signifies a change in Grecia's weather pattern as the transition from the dry to the rainy season starts. Rainfall increases dramatically to 86mm (3.39"), foresigning the wet season that lies ahead. Temperatures remain stable compared to March, and a slight increase in relative humidity indicates a more humid month ahead. Despite the increase in rainfall, sunshine duration remains steady at around 9 hours per day. The end of April marks the start of the time when carrying an umbrella becomes a necessity.

Temperature

Grecia's temperature peaks during March and April, with an average high-temperature of 29.7°C (85.5°F).

Heat index

The heat index for April is evaluated at a sweltering 35°C (95°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In April, the average relative humidity is 73%.

Rainfall

In Grecia, in April, it is raining for 20 days, with typically 86mm (3.39") of accumulated precipitation. Throughout the year, there are 272 rainfall days, and 2217mm (87.28") of precipitation is accumulated.

Daylight

The average length of the day in April in Grecia, Costa Rica, is 12h and 22min.
On the first day of April in Grecia, sunrise is at 05:33 and sunset at 17:47. On the last day of the month, sunrise is at 05:19 and sunset at 17:48 CST.

Sunshine

In Grecia, the average sunshine in April is 9.1h.

UV index

January through April, June, July, September, October and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily high UV index of 6 in April translates into this advice:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.

Frequently asked questions

What are the warmest months in Grecia?

In Grecia, Costa Rica, the warmest months are March and April, registering an average high-temperature of 29.7°C (85.5°F).

How hot is April in Grecia?

In Grecia, 29.7°C (85.5°F) is the average high-temperature and 19.2°C (66.6°F) is the average low-temperature during April. In April, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is evaluated at 35°C (95°F).

What is the average humidity in April in Grecia?

In April, the average relative humidity in Grecia is 73%.

How much does it rain in Grecia in April?

In April, in Grecia, the rain falls for 20 days. Throughout April, 86mm (3.39") of precipitation is accumulated.

What is the average length of the day in April in Grecia?

The average day length in April in Grecia is 12h and 22min.

What time are sunrise and sunset in April in Grecia?

On the first day of April in Grecia, sunrise is at 05:33 and sunset at 17:47. On the last day of the month, sunrise is at 05:19 and sunset at 17:48 CST.

How many hours of sunshine does Grecia have in April?

In Grecia, Costa Rica, the average sunshine duration in April is 9.1h.

When is the highest UV index in Grecia?

January through April, June, July, September, October and December, with an average maximum UV index of 6, are months with the highest UV index in Grecia, Costa Rica.

How high is the UV index in April in Grecia?

In April, the average daily maximum UV index in Grecia is 6. A UV Index reading of 6 to 7 represents a high hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Grecia, Costa Rica

Average temperature in April - Grecia, Costa Rica
  • Average high temperature in April: 29.7°C

The warmest months (with the highest average high temperature) are March and April (29.7°C).
The month with the lowest average high temperature is October (25.4°C).

  • Average low temperature in April: 19.2°C

The month with the highest average low temperature is May (19.8°C).
The coldest month (with the lowest average low temperature) is January (16.8°C).

Average pressure in April
Grecia, Costa Rica

Average pressure in April - Grecia, Costa Rica
  • Average pressure in April: 1011.3mbar

The month with the highest atmospheric pressure is January (1012.1mbar).
The month with the lowest atmospheric pressure is October (1010.7mbar).

Average wind speed in April
Grecia, Costa Rica

Average wind speed in April - Grecia, Costa Rica
  • Average wind speed in April: 6.6km/h

The windiest month (with the highest average wind speed) is February (10.6km/h).
The calmest month (with the lowest average wind speed) is September (3.8km/h).

Average humidity in April
Grecia, Costa Rica

Average humidity in April - Grecia, Costa Rica
  • Average humidity in April: 73%

The month with the highest relative humidity is October (89%).
The month with the lowest relative humidity is March (70%).

Average rainfall in April
Grecia, Costa Rica

Average rainfall in April - Grecia, Costa Rica
  • Average rainfall in April: 86mm

The wettest month (with the highest rainfall) is October (396mm).
The driest month (with the least rainfall) is February (17mm).

Average rainfall days in April
Grecia, Costa Rica

Average rainfall days in April - Grecia, Costa Rica
  • Average rainfall days in April: 20 days

The month with the highest number of rainy days is October (30.2 days).
The month with the least rainy days is February (10.3 days).

Average daylight in April /
Average sunshine in April
Grecia, Costa Rica

Average daylight in April / Average sunshine in April - Grecia, Costa Rica
  • Average daylight in April: 12h and 2min

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 30min).

  • Average sunshine in April: 9h and 1min

The month with the most sunshine is March (Average sunshine: 9h and 24min).
The month with the least sunshine is October (Average sunshine: 7h and 0min).

Average sunshine days in April
Grecia, Costa Rica

Average sunshine days in April - Grecia, Costa Rica
  • Average sunshine days in April: 8.2 days

The month with the most sunshine days is January (16.7 days).
The month with the least sunshine days is September (0.5 days).

Average UV index in April
Grecia, Costa Rica

Average UV index in April - Grecia, Costa Rica
  • Average UV index in April: 6

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

Average cloud cover in April
Grecia, Costa Rica

Average cloud cover in April - Grecia, Costa Rica
  • Average cloud cover in April: 30

The month with the most cloud cover is October (Cloud cover 54).
The month with the least cloud cover is February (Cloud cover 19).

Average visibility in April
Grecia, Costa Rica

Average visibility in April - Grecia, Costa Rica
  • Average visibility in April: 9km

The months with the highest visibility are February and March (10km).
The months with the lowest visibility are August, September, October and November (7km).

Grecia, Costa Rica

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