August weather forecast
Alajuela, Costa Rica

August

Weather in August

The climate of Alajuela, Costa Rica, stays on a relatively steady course in August. The statistics for maximum and minimum temperatures do not exhibit much of a swing from July's figures. A slight dip in daylight hours and a constant UV Index point to a persistence of the rainy season. The relative humidity remains on the higher side, corroborating the continued prevalence of wet conditions. While August sees a rise in rainfall to round 336mm (13.23") falling over roughly 28.8 days, it also witnesses a decrease in wind speed.

Temperature

In August, the average high-temperature registers at a still warm 24.9°C (76.8°F), nearly identical to July's 24.8°C (76.6°F). Alajuela observes an average nighttime temperature of 17.3°C (63.1°F) during August.

Humidity

In Alajuela, the average relative humidity in August is 87%.

Rainfall

In Alajuela, in August, it is raining for 28.8 days, with typically 336mm (13.23") of accumulated precipitation. In Alajuela, during the entire year, the rain falls for 289.5 days and collects up to 2506mm (98.66") of precipitation.

Daylight

In August, the average length of the day is 12h and 27min.
On the first day of the month, sunrise is at 05:26 and sunset at 18:01. On the last day of August, sunrise is at 05:28 and sunset at 17:47 CST.

Sunshine

The average sunshine in August is 7.1h.

UV index

January, February, May through December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The daily high UV index of 5 in August translates into this advice:
Guard yourself - Precautionary measures against sun damage are advocated. To guard against the harmful effects of the Sun, minimize exposure during midday. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.

Frequently asked questions

What is the usual temperature for Alajuela in August?
The high-temperature, in August, in Alajuela, records 24.9°C (76.8°F), while the low-temperature is 17.3°C (63.1°F). In April, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, is appraised at 31°C (87.8°F).
What is the average humidity in August?
In August, the average relative humidity is 87%.
How many days does it rain in August?
In Alajuela, during August, the rain falls for 28.8 days and regularly aggregates up to 336mm (13.23") of precipitation.
How many hours of daylight does Alajuela have in August?
In Alajuela, the average day length in August is 12h and 27min.
When are sunrise and sunset in August?
On the first day of August, sunrise is at 05:26 and sunset at 18:01. On the last day of the month, sunrise is at 05:28 and sunset at 17:47 CST.
How many hours of sunshine does Alajuela have in August?
In August, the average sunshine duration in Alajuela is 7.1h.
What is the month with the lowest UV index?
January, February, May through December, with an average maximum UV index of 5, are months with the lowest UV index in Alajuela.
How high is the UV index in August in Alajuela?
In Alajuela, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in August - Alajuela, Costa Rica
Average temperature in August
Alajuela, Costa Rica
  • Average high temperature in August: 24.9°C

The warmest month (with the highest average high temperature) is April (28°C).
The month with the lowest average high temperature is October (23.8°C).

  • Average low temperature in August: 17.3°C

The month with the highest average low temperature is May (18.3°C).
The coldest month (with the lowest average low temperature) is January (15.2°C).

Average pressure in August - Alajuela, Costa Rica
Average pressure in August
Alajuela, Costa Rica
  • Average pressure in August: 1011.3mbar

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 August - Alajuela, Costa Rica
Average wind speed in August
Alajuela, Costa Rica
  • Average wind speed in August: 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 August - Alajuela, Costa Rica
Average humidity in August
Alajuela, Costa Rica
  • Average humidity in August: 87%

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

Average rainfall in August - Alajuela, Costa Rica
Average rainfall in August
Alajuela, Costa Rica
  • Average rainfall in August: 336mm

The wettest month (with the highest rainfall) is October (421mm).
The driest month (with the least rainfall) is February (25mm).

Average rainfall days in August - Alajuela, Costa Rica
Average rainfall days in August
Alajuela, Costa Rica
  • Average rainfall days in August: 28.8 days

The month with the highest number of rainy days is October (30.5 days).
The month with the least rainy days is February (12.3 days).

Average daylight in August / Average sunshine in August - Alajuela, Costa Rica
Average daylight in August /
Average sunshine in August
Alajuela, Costa Rica
  • Average daylight in August: 12h and 3min

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 August: 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 12min).

Average sunshine days in August - Alajuela, Costa Rica
Average sunshine days in August
Alajuela, Costa Rica
  • Average sunshine days in August: 0.9 days

The month with the most sunshine days is February (11.9 days).
The month with the least sunshine days is September (0.4 days).

Average UV index in August - Alajuela, Costa Rica
Average UV index in August
Alajuela, Costa Rica
  • Average UV index in August: 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 August - Alajuela, Costa Rica
Average cloud cover in August
Alajuela, Costa Rica
  • Average cloud cover in August: 56

The month with the most cloud cover is October (Cloud cover 62).
The month with the least cloud cover is February (Cloud cover 23).

Average visibility in August - Alajuela, Costa Rica
Average visibility in August
Alajuela, Costa Rica
  • Average visibility in August: 7km

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

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