Measurements:
°C
°F
Jaco
80°F
W 5 mph
Feels like: 84°F
Precip: 100%
World Resorts Costa Rica Jaco Weather

Jaco Sea Water Temperature

Current Sea Water Temperature:
+86.8°F
Maximum Sea Water Temperature in December: 91.0°F
Minimum Sea Water Temperature in December: 84.8°F
Average water temperature in December: 86.9°F

Sea Water Temperature for the Last 10 Days:

December 04 86.8°F November 29 87.2°F
December 03 86.8°F November 28 87.2°F
December 02 86.8°F November 27 86.8°F
December 01 86.8°F November 26 86.2°F
November 30 87.0°F November 25 86.2°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
Heredia +58
Jaco +80
Limon +76
Playa Flamingo +78
Playas del Coco +78
Puerto Limon +76
Puerto Viejo de Talamanca +74
Quepos +74
Samara +78
San Jose +54
Santa Teresa +82
Tamarindo +78
Tortuguero +76
24 Hours Weather Forecast
Jaco
Local time: 01:06
05 dec, friday
0300 78°F
SW
6 mph
0600 78°F
SW
6 mph
0900 84°F
W
3 mph
1200 84°F
N
6 mph
1500 84°F
N
6 mph
1800 82°F
NW
6 mph
2100 80°F
W
5 mph
06 dec, saturday
0000 80°F
W
4 mph