Measurements:
°C
°F
Jaco
84°F
W 4 mph
Feels like: 92°F
Precip: 17%
World Resorts Costa Rica Jaco Weather

Jaco Sea Water Temperature

Current Sea Water Temperature:
+90.6°F
Maximum Sea Water Temperature in July: 92.0°F
Minimum Sea Water Temperature in July: 85.8°F
Average water temperature in July: 88.3°F

Sea Water Temperature for the Last 10 Days:

July 12 90.6°F July 07 90.4°F
July 11 90.0°F July 06 90.8°F
July 10 90.8°F July 05 90.4°F
July 09 90.8°F July 04 91.2°F
July 08 90.2°F July 03 92.0°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: 2026 2025 2024

The average sea surface temperature in April 2026 for Jaco was 90.2°F. The maximum and minimum values were 88.8°F and 91.0°F respectively.

Sea Water Temperature in May

Select Year: 2026 2025 2024

The average sea surface temperature in May 2026 for Jaco was 90.3°F. The maximum and minimum values were 89.6°F and 91.4°F respectively.

Sea Water Temperature in March

Select Year: 2026 2025 2024

The average sea surface temperature in March 2026 for Jaco was 90.0°F. The maximum and minimum values were 88.8°F and 91.0°F respectively.

Best Time to Visit Jaco
The most sunny months:
March 12 days
February 11 days
January 8 days
The most warm months:
April 89.0 °F
March 88.9 °F
February 88.4 °F
Warmest sea temperature:
April 89.7 °F
May 89.4 °F
March 89.3 °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
September 21 days
The most windy months:
February 5 mph
March 5 mph
April 4 mph

Jaco on the Weather Map

Costa Rica Resorts:
NAME
Alajuela +68
Cartago +62
Heredia +66
Jaco +84
Limon +80
Playa Flamingo +82
Playas del Coco +82
Puerto Limon +80
Puerto Viejo de Talamanca +80
Quepos +76
Samara +80
San Jose +64
Santa Teresa +84
Tamarindo +82
Tortuguero +78
24 Hours Weather Forecast
Jaco
Local time: 01:17
13 jul, monday
0300 84°F
S
5 mph
0600 84°F
SW
4 mph
0900 86°F
S
2 mph
1200 86°F
NE
4 mph
1500 86°F
N
5 mph
1800 86°F
N
3 mph
2100 86°F
NW
1 mph
14 jul, tuesday
0000 84°F
S
2 mph