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Jaco weather in December

Weather in Jaco: December

Average day temperature: 82.1°F
Average night temperature: 76.5°F
Sea water temperature: 83.2°F
Number of sunny days: 4 days
Day length: 11.6 - 11.6 hours
Number of rainy days: 8 days
Precipitation totals: 4.7 in.

Air temperature in December, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
14
28
42
56
70
84
98
Day temperature   
Night temperature

The highest day temperature during December of 2024 was 82°F. At the same time the lowest night temperature was 75°F. Daily and nightly averages during December were 81.5°F and 76.7°F.

Sea water temperature in Jaco in December, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
77
79
81
83
85
87
89
91

The average sea water temperature in December of 2024 was 83.0°F. The highest and lowest sea temperatures during the month were 84.0°F and 81.9°F.

Sunny, partly cloudy and cloudy days
Sunny days
Partly cloudy days
Cloudy days
13%
26%
61%

Mostly all days in December are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in December, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
3.3
6.5
9.8
13.1
16.3
19.6
22.9
11.8
13.2
12.2
19.1
10.8
13.7
10.1
4.1
1.9
1.8
4.7
11.8
13.2
12.2
19.1
10.8
13.7
10.1
4.1
1.9
1.8

Precipitation total value in Jaco in December is 4.7 in.

Wind speed in December, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.9
1.8
2.7
3.6
4.5
5.4
6.3
4.9
4.6
4.5
4.5
4.3
4.6
4.5
4.7
5.1
5.2
4.5
4.2
4.9
4.6
4.5
4.5
4.3
4.6
4.5
4.7
5.1
5.2
4.5

The average wind speed value in December is 4.2 mph It makes December lest windy month of the year.

Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.2
2.4
3.6
4.8
6.0
7.2
8.5
3.0
3.4
3.6
3.5
3.5
3.4
3.9
5.1
6.7
7.0
6.1
4.9
3.0
3.4
3.6
3.5
3.5
3.4
3.9
5.1
6.7
7.0
6.1

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 December is: 4.9.

Best time for vacation in Jaco

Sunniest months:
February 11 days
March 10 days
January 7 days
Warmest months:
April 85.2 °F
March 85.1 °F
February 84.7 °F
Warmest sea temp:
April 85.4 °F
March 85.3 °F
May 85.3 °F
Coldest months:
November 80.4 °F
October 81.3 °F
August 81.6 °F
Rainiest months:
August 26 days
July 24 days
September 23 days
Windiest months:
February 5.2 mph
March 5.1 mph
November 4.9 mph

Jaco on a weather map

Leaflet | Tiles © Esri
Places in Costa Rica:
Name
°F
+64°F
+81°F
+57°F
+81°F
+73°F
+73°F
+77°F
+61°F
+81°F
+79°F
+75°F
+61°F
24 Hours Forecast
Jaco
Local time: 04:49
April 05, saturday
0600
81°F
S
6 mph
0900
84°F
SE
3 mph
1200
86°F
NE
7 mph
1500
86°F
N
8 mph
1800
82°F
NE
4 mph
2100
82°F
NW
1 mph
April 06, sunday
0000
81°F
S
2 mph
0300
81°F
S
4 mph
Units of measurement: °C / °F