Measurements:
°C
°F
Tamarindo
80°F
W 6 mph
Feels like: 84°F
Precip: 10%
World Resorts Costa Rica Tamarindo Weather

Tamarindo Sea Water Temperature

Current Sea Water Temperature:
+89.2°F
Maximum Sea Water Temperature in August: 91.0°F
Minimum Sea Water Temperature in August: 86.2°F
Average water temperature in August: 88.1°F

Sea Water Temperature for the Last 10 Days:

August 10 89.2°F August 05 90.2°F
August 09 90.6°F August 04 89.8°F
August 08 91.0°F August 03 89.8°F
August 07 90.0°F August 02 89.8°F
August 06 90.2°F August 01 90.0°F

When is the Warmest Sea for Tamarindo?

According to our data for the last three years for Tamarindo the highest average sea water temperature was in May, June and July.

Average Water Temperature by Month, °F

Sea Water Temperature in May

Select Year: 2026 2025 2024

The average sea surface temperature in May 2026 for Tamarindo was 90.1°F. The maximum and minimum values were 88.8°F and 91.0°F respectively.

Sea Water Temperature in June

Select Year: 2026 2025 2024

The average sea surface temperature in June 2026 for Tamarindo was 89.8°F. The maximum and minimum values were 88.6°F and 91.0°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Tamarindo was 89.8°F. The maximum and minimum values were 89.0°F and 90.8°F respectively.

Best Time to Visit Tamarindo
The most sunny months:
March 28 days
January 27 days
February 26 days
The most warm months:
April 93.2 °F
March 93.0 °F
February 91.8 °F
Warmest sea temperature:
May 89.1 °F
June 88.6 °F
July 88.2 °F
The most cold months:
November 84.6 °F
October 84.8 °F
September 85.8 °F
The most rainy months:
June 13 days
September 12 days
August 12 days
The most windy months:
February 9 mph
January 8 mph
March 7 mph

Tamarindo on the Weather Map

24 Hours Weather Forecast
Tamarindo
Local time: 02:46
10 aug, monday
0300 80°F
W
6 mph
0600 80°F
W
7 mph
0900 88°F
SW
11 mph
1200 96°F
SW
9 mph
1500 98°F
W
7 mph
1800 90°F
W
11 mph
2100 84°F
SW
11 mph
11 aug, tuesday
0000 82°F
W
7 mph