Measurements:
°C
°F
CURRENT WEATHER
08:40
Alajuela
84°F
NE 1 mph
Feels like: 86°F
Precip: 100%
World Resorts Costa Rica Alajuela Weather

7 Day Weather Forecast

05.29
fri
DAY
78°F
SE 2 mph
precip
100%
NIGHT
66°F
SW 3 mph
precip
100%
05.30
sat
DAY
80°F
E 4 mph
precip
100%
NIGHT
68°F
W 1 mph
precip
0%
05.31
sun
DAY
82°F
E 3 mph
precip
100%
NIGHT
70°F
SE 0 mph
precip
0%
06.01
mon
DAY
78°F
E 2 mph
precip
100%
NIGHT
64°F
W 3 mph
precip
100%
06.02
tue
DAY
82°F
NE 5 mph
precip
100%
NIGHT
68°F
E 0 mph
precip
74%
06.03
wed
DAY
82°F
NE 5 mph
precip
100%
NIGHT
68°F
SW 1 mph
precip
0%
06.04
thu
DAY
80°F
NE 5 mph
precip
100%
NIGHT
66°F
W 1 mph
precip
0%

Alajuela Sea Water Temperature in May, °F

Select Year: 2026 2025 2024

The average sea surface temperature in May 2026 for Alajuela was 30.1°F. The maximum and minimum values were 29.8°F and 30.5°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:
June 25 days
September 25 days
October 25 days
The most windy months:
February 6 mph
January 6 mph
March 6 mph
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