Monthly weather forecast and climate
Asunción, Costa Rica

Weather in January

January, the same as December, is another warm winter month in Asunción, Costa Rica, with average temperature ranging between max 27.6°C (81.7°F) and min 22.9°C (73.2°F). January is the coldest month, with an average high-temperature of 27.6°C (81.7°F) and an average low-temperature of 22.9°C (73.2°F). The average heat index in January is calculated to a hot 30.1°C (86.2°F). Weather in January »

Weather in February

February, the last month of the winter, in Asunción, is also a moderately hot month, with average temperature fluctuating between 27.8°C (82°F) and 22.8°C (73°F). In Asunción, the average high-temperature is practically the same as in January - a still moderately hot 27.8°C (82°F). Weather in February »

Weather in March

The first month of the spring, March, is still a warm month in Asunción, Costa Rica, with temperature in the range of an average low of 23.1°C (73.6°F) and an average high of 28.3°C (82.9°F). In March, the average high-temperature is relatively the same as in February - a still warm 28.3°C (82.9°F). Weather in March »

Weather in April

April, the same as March, is another warm spring month in Asunción, Costa Rica, with average temperature fluctuating between 24.3°C (75.7°F) and 29.2°C (84.6°F). In Asunción, the average high-temperature is relatively the same as in March - a still moderately hot 29.2°C (84.6°F). Weather in April »

Weather in May

May, the last month of the spring, in Asunción, is also a moderately hot month, with average temperature ranging between max 29.7°C (85.5°F) and min 25.3°C (77.5°F). In May, the average high-temperature is practically the same as in April - a still moderately hot 29.7°C (85.5°F). Weather in May »

Weather in June

June, the first month of the summer, in Asunción, is still a warm month, with average temperature ranging between min 25.3°C (77.5°F) and max 29.7°C (85.5°F). In June, the average high-temperature remains the same as in May - a still warm 29.7°C (85.5°F). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Asunción, Costa Rica, with temperature in the range of an average high of 29.1°C (84.4°F) and an average low of 24.8°C (76.6°F). In July, the average high-temperature is almost the same as in June - a still moderately hot 29.1°C (84.4°F). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Asunción, Costa Rica, with average temperature varying between 24.9°C (76.8°F) and 29.7°C (85.5°F). In Asunción, Costa Rica, the average high-temperature in August is essentially the same as in July - a still warm 29.7°C (85.5°F). Weather in August »

Weather in September

The first month of the autumn, September, is a tropical month in Asunción, Costa Rica, with average temperature ranging between max 30°C (86°F) and min 25°C (77°F). September is the warmest month, with an average high-temperature of 30°C (86°F) and an average low-temperature of 25°C (77°F). The average heat index in September is evaluated at a torrid 35.3°C (95.5°F). Weather in September »

Weather in October

October, the same as September, is another warm autumn month in Asunción, Costa Rica, with average temperature varying between 29.6°C (85.3°F) and 25.1°C (77.2°F). In Asunción, the average high-temperature is essentially the same as in September - a moderately hot 29.6°C (85.3°F). Weather in October »

Weather in November

The last month of the autumn, November, is another warm month in Asunción, Costa Rica, with average temperature ranging between min 24.3°C (75.7°F) and max 28.8°C (83.8°F). In November, the average high-temperature is essentially the same as in October - a still warm 28.8°C (83.8°F). Weather in November »

Weather in December

December, the first month of the winter, in Asunción, is also a moderately hot month, with average temperature ranging between max 28.2°C (82.8°F) and min 23.4°C (74.1°F). In Asunción, Costa Rica, the average high-temperature is practically the same as in November - a still warm 28.2°C (82.8°F). Weather in December »
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FAQ

What is the coldest month in Asunción?

The coldest month is January, with an average high-temperature of 27.6°C (81.7°F) and an average low-temperature of 22.9°C (73.2°F).

How much does it rain in Asunción?

Throughout the year, there are 241.5 rainfall days, and 1580mm (62.2") of precipitation is accumulated.

What is the month with the shortest days in Asunción?

Months with the shortest days are January and December, with an average of 11.6h of daylight.

What are the months with the lowest UV index in Asunción?

January, February and December, with an average maximum UV index of 6, are months with the lowest UV index in Asunción, Costa Rica.

What are the months with the highest UV index in Asunción?

March through November, with an average maximum UV index of 7, are months with the highest UV index in Asunción.

What is the driest month in Asunción?

April is the month with the least rainfall. Rain falls for 16.8 days and accumulates 65mm (2.56") of precipitation.

What is the most humid month in Asunción?

May and June, with an average relative humidity of 74%, are most humid months in Asunción, Costa Rica.

When are the longest days in Asunción?

The month with the longest days is June, with an average of 12.7h of daylight.

What is the wettest month in Asunción?

July is the month with the most rainfall in Asunción, Costa Rica. Rain falls for 25.8 days and accumulates 203mm (7.99") of precipitation.

What is the warmest month in Asunción?

The warmest month is September, with an average high-temperature of 30°C (86°F) and an average low-temperature of 25°C (77°F).

What is the least humid month in Asunción?

September is the least humid month in Asunción, Costa Rica, with an average relative humidity of 71%.

What month has the most sunshine in Asunción?

The month with the most sunshine in Asunción, Costa Rica, is September, with an average of 9.2h of sunshine.

What is the month with the least sunshine in Asunción?

December has the least sunshine of the year in Asunción, Costa Rica, with an average of 7.3h of sunshine.

Average temperature
Asunción, Costa Rica

Average temperature - Asunción, Costa Rica

The warmest month (with the highest average high temperature) is September (30°C).
The month with the lowest average high temperature is January (27.6°C).

Months with the highest average low temperature are May and June (25.3°C).
The coldest month (with the lowest average low temperature) is February (22.8°C).

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Average pressure
Asunción, Costa Rica

Average pressure - Asunción, Costa Rica

The month with the highest atmospheric pressure is January (1013.1mbar).
The month with the lowest atmospheric pressure is October (1010.9mbar).

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Average wind speed
Asunción, Costa Rica

Average wind speed - Asunción, Costa Rica

The windiest month (with the highest average wind speed) is November (9.7km/h).
The calmest month (with the lowest average wind speed) is September (7.4km/h).

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Average humidity
Asunción, Costa Rica

Average humidity - Asunción, Costa Rica

Months with the highest relative humidity are May and June (74%).
The month with the lowest relative humidity is September (71%).

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Average rainfall
Asunción, Costa Rica

Average rainfall - Asunción, Costa Rica

The wettest month (with the highest rainfall) is July (203mm).
The driest month (with the least rainfall) is April (65mm).

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Average rainfall days
Asunción, Costa Rica

Average rainfall days - Asunción, Costa Rica

The month with the highest number of rainy days is July (25.8 days).
The month with the least rainy days is February (15.7 days).

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Average daylight / Average sunshine
Asunción, Costa Rica

Average daylight / Average sunshine - Asunción, Costa Rica

The month with the longest days is June (Average daylight: 12.7h).
Months with the shortest days are January and December (Average daylight: 11.6h).

The month with the most sunshine is September (Average sunshine: 9.2h).
The month with the least sunshine is December (Average sunshine: 7.3h).

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Average sunshine days
Asunción, Costa Rica

Average sunshine days - Asunción, Costa Rica

The month with the most sunshine days is January (10.6 days).
The month with the least sunshine days is July (3.2 days).

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Average UV index
Asunción, Costa Rica

Average UV index - Asunción, Costa Rica

Months with the highest UV index are March, April, May, June, July, August, September, October and November (UV index 7).
Months with the lowest UV index are January, February and December (UV index 6).

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Average visibility
Asunción, Costa Rica

Average visibility - Asunción, Costa Rica

Months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).

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