Measurements:
°C
°F
Jaco
80°F
SW 2 mph
Feels like: 84°F
Precip: 85%
World Resorts Costa Rica Jaco Weather

Jaco Sea Water Temperature

Current Sea Water Temperature:
+88.0°F
Maximum Sea Water Temperature in January: 91.4°F
Minimum Sea Water Temperature in January: 85.8°F
Average water temperature in January: 87.9°F

Sea Water Temperature for the Last 10 Days:

January 08 88.0°F January 03 87.6°F
January 07 87.6°F January 02 87.2°F
January 06 87.8°F January 01 87.4°F
January 05 88.4°F December 31 87.0°F
January 04 88.4°F December 30 87.2°F

When is the Warmest Sea for Jaco?

According to our data for the last three years for Jaco the highest average sea water temperature was in April, May and March.

Average Water Temperature by Month, °F

Sea Water Temperature in April

Select Year: 2025 2024 2023

The average sea surface temperature in April 2025 for Jaco was 90.7°F. The maximum and minimum values were 90.0°F and 91.4°F respectively.

Sea Water Temperature in May

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for Jaco was 89.9°F. The maximum and minimum values were 88.8°F and 90.8°F respectively.

Sea Water Temperature in March

Select Year: 2025 2024 2023

The average sea surface temperature in March 2025 for Jaco was 89.7°F. The maximum and minimum values were 88.4°F and 90.6°F respectively.

Best Time to Visit Jaco
The most sunny months:
February 11 days
March 10 days
January 7 days
The most warm months:
April 89.1 °F
March 89.0 °F
February 88.5 °F
Warmest sea temperature:
April 89.6 °F
May 89.3 °F
March 89.2 °F
The most cold months:
November 83.9 °F
October 84.7 °F
August 85.2 °F
The most rainy months:
August 24 days
July 22 days
June 22 days
The most windy months:
February 5 mph
March 5 mph
April 4 mph

Jaco on the Weather Map

Costa Rica Resorts:
NAME
Alajuela +58
Cahuita +76
Cartago +56
Jaco +80
Limon +78
Playa Flamingo +80
Playas del Coco +80
Puerto Limon +76
Puerto Viejo de Talamanca +74
Quepos +70
Samara +78
San Jose +56
Santa Teresa +82
Tamarindo +80
Tortuguero +76
24 Hours Weather Forecast
Jaco
Local time: 20:37
08 jan, thursday
2100 80°F
SW
2 mph
09 jan, friday
0000 80°F
S
6 mph
0300 78°F
S
6 mph
0600 78°F
S
6 mph
0900 84°F
SW
2 mph
1200 84°F
N
5 mph
1500 86°F
N
7 mph
1800 82°F
N
3 mph