17.07
fri
fri
Day
86°F
NE 4 mph
Precip.
6%
6%
Night
81°F
SW 3 mph
Precip.
18%
18%
18.07
sat
sat
Day
84°F
NE 6 mph
Precip.
6%
6%
Night
81°F
SE 4 mph
Precip.
12%
12%
19.07
sun
sun
Day
84°F
NE 4 mph
Precip.
6%
6%
Night
81°F
SW 5 mph
Precip.
12%
12%
20.07
mon
mon
Day
84°F
N 5 mph
Precip.
16%
16%
Night
79°F
SW 4 mph
Precip.
28%
28%
21.07
tue
tue
Day
81°F
S 6 mph
Precip.
28%
28%
Night
79°F
SW 5 mph
Precip.
12%
12%
22.07
wed
wed
Day
81°F
NW 2 mph
Precip.
62%
62%
Night
79°F
W 1 mph
Precip.
44%
44%
23.07
thu
thu
Day
77°F
SW 3 mph
Precip.
68%
68%
Night
75°F
S 5 mph
Precip.
46%
46%
24.07
fri
fri
Day
77°F
W 4 mph
Precip.
32%
32%
Night
79°F
W 6 mph
Precip.
39%
39%
25.07
sat
sat
Day
82°F
E 6 mph
Precip.
7%
7%
Night
81°F
S 6 mph
Precip.
13%
13%
26.07
sun
sun
Day
84°F
E 6 mph
Precip.
6%
6%
Night
81°F
SE 4 mph
Precip.
12%
12%
27.07
mon
mon
Day
84°F
NE 5 mph
Precip.
9%
9%
Night
77°F
W 4 mph
Precip.
24%
24%
28.07
tue
tue
Day
82°F
NE 5 mph
Precip.
20%
20%
Night
77°F
SE 5 mph
Precip.
15%
15%
29.07
wed
wed
Day
82°F
E 4 mph
Precip.
11%
11%
Night
81°F
E 4 mph
Precip.
31%
31%
30.07
thu
thu
Day
84°F
N 4 mph
Precip.
45%
45%
Night
82°F
E 2 mph
Precip.
14%
14%
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 86.6°F. The highest and lowest sea temperatures during the month were 87.8°F and 86.0°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 84.5°F. The highest and lowest sea temperatures during the month were 85.1°F and 84.2°F.
Air temperature in Jaco, °F
Precipitation total in Jaco, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Jaco
Jaco on a weather map
Places in Costa Rica:
Name
°F
24 Hours Forecast
Jaco
Local time: 15:00
July 17, friday
1800
82°F
NE
4 mph
4 mph
2100
82°F
SE
1 mph
1 mph
July 18, saturday
0000
81°F
SW
3 mph
3 mph
0300
81°F
S
6 mph
6 mph
0600
79°F
S
6 mph
6 mph
0900
84°F
S
1 mph
1 mph
1200
84°F
NE
6 mph
6 mph
1500
84°F
NE
5 mph
5 mph
