August weather forecast
Tamarindo, Costa Rica

Coastal Tamarindo in Costa Rica with clear waters and white sandy beaches
Coastal Tamarindo in Costa Rica with clear waters and white sandy beaches

August

Weather in August

In August, the rainfall peaks again at 255mm (10.04"), marking it as one of the "high-rain" months in Tamarindo. Mirroring similar temperatures as in the previous months, the primary distinct element is the consistent rainfall. The optimally warmed sea water maintains an inviting environment for marine aquatic adventures. Despite the copious rains, daylight continues its reign, prolonging for approximately 12.4 hours. Unfurling the richness and bloom of biodiversity, August is the time when nature connects deeply with its visitors.

Temperature

Tamarindo marks the start of August with an average high temperature of a still hot 31°C (87.8°F), mirroring the readings from July. Throughout the month of August, Tamarindo witnesses an average temperature of 23°C (73.4°F).

Rainfall

In Tamarindo, Costa Rica, during August, the rain falls for 21 days and regularly aggregates up to 255mm (10.04") of precipitation. In Tamarindo, during the entire year, the rain falls for 171 days and collects up to 1853mm (72.95") of precipitation.

Sea temperature

In Tamarindo, in August, the average water temperature is 28°C (82.4°F).
Note: In water activities such as swimming and diving, temperatures from 25°C (77°F) to 29°C (84.2°F) are deemed highly pleasurable for extended periods without any unease.

Daylight

In Tamarindo, the average length of the day in August is 12h and 27min.
On the first day of August, sunrise is at 05:32 and sunset at 18:06. On the last day of the month, sunrise is at 05:33 and sunset at 17:52 CST.

Sunshine

The months with the least sunshine are June, August through October, with an average of 5h of sunshine.

UV index

February through October, with an average maximum UV index of 12, are months with the highest UV index. A UV Index value of 11, and more, symbolizes an extreme health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In August, the UV index of 12 transforms into the following advice:
Adopt all important safety measures, unprotected skin may burn rapidly. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Apply and frequently reapply a broad-spectrum SPF 30+ sunscreen after every two hours, or immediately after a swim or outdoor exercise. Warning! Sand and water reflections boost the intensity of UV exposure.

Frequently asked questions

How hot does it get in Tamarindo in August?
Tamarindo in August has an average high-temperature of 31°C (87.8°F) and an average low-temperature of 23°C (73.4°F).
How much does it rain in August?
In Tamarindo, in August, during 21 rainfall days, 255mm (10.04") of precipitation is typically accumulated.
What is the sea water temperature in August?
In August, the average sea temperature is 28°C (82.4°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.
How many hours of daylight does Tamarindo have in August?
In Tamarindo, the average day length in August is 12h and 27min.
What time are sunrise and sunset in August?
On the first day of August, sunrise is at 05:32 and sunset at 18:06. On the last day of the month, sunrise is at 05:33 and sunset at 17:52 CST.
What is the month with the least sunshine?
The months with the least sunshine are June, August through October, with an average of 5h of sunshine.
How many hours of sunshine does Tamarindo have in August?
The average sunshine duration in August is 5h.
When is the highest UV index?
The months with the highest UV index are February through October, with an average maximum UV index of 12.
What is the UV index intensity in August?
The average daily maximum UV index in August is 12. A UV Index estimate of 11, and higher, represents an extreme health threat from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average rainfall
Average rainfall days
Average sea temperature
Average daylight
Average sunshine
Average UV index
Average temperature in August - Tamarindo, Costa Rica
Average temperature in August
Tamarindo, Costa Rica
  • Average high temperature in August: 31°C

The warmest months (with the highest average high temperature) are February, March and April (33°C).
The month with the lowest average high temperature is September (30°C).

  • Average low temperature in August: 23°C

The months with the highest average low temperature are April and May (24°C).
The coldest month (with the lowest average low temperature) is December (22°C).

Average rainfall in August - Tamarindo, Costa Rica
Average rainfall in August
Tamarindo, Costa Rica
  • Average rainfall in August: 255mm

The wettest month (with the highest rainfall) is October (362mm).
The driest month (with the least rainfall) is February (2mm).

Average rainfall days in August - Tamarindo, Costa Rica
Average rainfall days in August
Tamarindo, Costa Rica
  • Average rainfall days in August: 21 days

The month with the highest number of rainy days is September (23 days).
The months with the least rainy days are February and March (5 days).

Average sea temperature in August - Tamarindo, Costa Rica
Average sea temperature in August
Tamarindo, Costa Rica
  • Average sea temperature in August: 28°C

The best months for swimming (with the highest average sea temperature) are May and June (29°C).
The coldest months (with the lowest average sea temperature) are January, February, March and December (27°C).

Average daylight in August / Average sunshine in August - Tamarindo, Costa Rica
Average daylight in August /
Average sunshine in August
Tamarindo, 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: 5h

The months with the most sunshine are January, February, March and April (Average sunshine: 8h).
The months with the least sunshine are June, August, September and October (Average sunshine: 5h).

Average UV index in August - Tamarindo, Costa Rica
Average UV index in August
Tamarindo, Costa Rica
  • Average UV index in August: 12

The months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 12).
The month with the lowest UV index is December (UV index 10).

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