Measurements:
°C
°F
CURRENT WEATHER
02:43
Alajuela
62°F
SW 6 mph
Feels like: 62°F
Precip: 16%
World Resorts Costa Rica Alajuela Weather

7 Day Weather Forecast

08.10
mon
DAY
88°F
SW 7 mph
precip
8%
NIGHT
64°F
SW 5 mph
precip
16%
08.11
tue
DAY
88°F
SE 1 mph
precip
36%
NIGHT
66°F
SW 4 mph
precip
19%
08.12
wed
DAY
82°F
E 2 mph
precip
59%
NIGHT
66°F
SW 3 mph
precip
24%
08.13
thu
DAY
86°F
SE 1 mph
precip
36%
NIGHT
64°F
SW 4 mph
precip
19%
08.14
fri
DAY
86°F
SW 6 mph
precip
27%
NIGHT
66°F
SW 4 mph
precip
23%
08.15
sat
DAY
74°F
SW 4 mph
precip
39%
NIGHT
66°F
SW 3 mph
precip
22%
08.16
sun
DAY
80°F
SW 6 mph
precip
5%
NIGHT
66°F
S 2 mph
precip
17%

Alajuela Sea Water Temperature in August, °F

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Alajuela was 29.1°F. The maximum and minimum values were 28.9°F and 29.4°F respectively.

Alajuela on the Weather Map

Best Time to Visit Alajuela
The most sunny months:
February 16 days
March 16 days
January 15 days
The most warm months:
March 87.3 °F
April 86.3 °F
February 85.5 °F
Warmest sea temperature:
April 89.1 °F
May 88.9 °F
March 88.6 °F
The most cold months:
October 78.7 °F
November 78.8 °F
September 80.0 °F
The most rainy months:
September 25 days
October 25 days
June 24 days
The most windy months:
February 6 mph
January 6 mph
March 6 mph
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