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Alajuela weather in January

Weather in Alajuela: January

Average day temperature: 80.0°F
Average night temperature: 58.8°F
Sea water temperature: 83.7°F
Number of sunny days: 16 days
Day length: 11.6 - 11.7 hours
Number of rainy days: 2 days
Precipitation totals: 1.4 in.

Air temperature in January, °F

Show year:
2025
2024
2023

The highest day temperature during January of 2025 was 83°F. At the same time the lowest night temperature was 53°F. Daily and nightly averages during January were 78.4°F and 58.4°F.

Sea water temperature in Alajuela in January, °F

Show year:
2025
2024
2023

The average sea water temperature in January of 2025 was 83.5°F. The highest and lowest sea temperatures during the month were 84.9°F and 82.2°F.

Sunny, partly cloudy and cloudy days

Mostly all days in January are sunny but cloudy days are also possible.

Precipitation total in January, in.

Precipitation total value in Alajuela in January is 1.6 in. It makes january one of the most dry months of the year.

Wind speed in January, mph

The average wind speed value in January is 6.2 mph It makes January one of the most windy months of the year.

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 January is: 6.7.

Best time for vacation in Alajuela

Sunniest months:
February 17 days
January 16 days
March 16 days
Warmest months:
March 83.6 °F
April 82.8 °F
February 82.3 °F
Warmest sea temp:
April 85.2 °F
May 85.0 °F
March 84.7 °F
Coldest months:
October 75.8 °F
November 76.0 °F
September 77.0 °F
Rainiest months:
October 25 days
June 25 days
September 25 days
Windiest months:
February 6.7 mph
January 6.3 mph
March 5.8 mph

Alajuela on a weather map

Alajuela
+57°F
SW 4 mph
Feels like: +57°F
Precip.: 0%
Places in Costa Rica:
Name
°F
+57°F
+77°F
+73°F
+72°F
+73°F
+73°F
+75°F
+54°F
+79°F
+75°F
+73°F
+57°F
24 Hours Forecast
Alajuela
Local time: 22:47
December 05, friday
0000
57°F
SW
4 mph
0300
54°F
SW
5 mph
0600
54°F
SW
4 mph
0900
73°F
S
2 mph
1200
82°F
E
2 mph
1500
75°F
E
2 mph
1800
59°F
SW
2 mph
2100
55°F
SW
4 mph
Units of measurement: °C / °F