Weather in Jaco: May
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Average day temperature: | 84.1°F |
| Average night temperature: | 79.9°F | |
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Sea water temperature: | 85.5°F |
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Number of sunny days: | 0 days |
| Day length: | 12.5 - 12.6 hours | |
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Number of rainy days: | 17 days |
| Precipitation totals: | 8.5 in. | |
| more information | ||
14 days
forecast
forecast
| Jaco |
sea water
temperature
temperature
| Jaco |
Air temperature in May, °F
Show year:
2026
2025
2024
The highest day temperature during May of 2026 was 86°F. At the same time the lowest night temperature was 78°F. Daily and nightly averages during May were 85.2°F and 80.6°F.
Sea water temperature in Jaco in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 86.3°F. The highest and lowest sea temperatures during the month were 87.3°F and 85.6°F.
Sunny, partly cloudy and cloudy days
Mostly all days in May are cloudy but sunny and partly cloudy days are also possible.
Precipitation total in May, in.
Precipitation total value in Jaco in May is 8.5 in.
Wind speed in May, mph
The average wind speed value in May is 4.6 mph
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 4.4.
Best time for vacation in Jaco
Jaco on a weather map
Places in Costa Rica:
Name
°F
24 Hours Forecast
Jaco
Local time: 03:13
June 07, sunday
0600
77°F
N
6 mph
6 mph
0900
77°F
NW
3 mph
3 mph
1200
77°F
NW
3 mph
3 mph
1500
75°F
NW
5 mph
5 mph
1800
77°F
N
9 mph
9 mph
2100
77°F
N
8 mph
8 mph
June 08, monday
0000
77°F
NW
11 mph
11 mph
0300
75°F
NW
12 mph
12 mph
