World Resorts

Costa Rica

Alajuela Weather

Alajuela 14 Days Forecast

26.08
wed

Day

86°F

W 2 mph

Precip.
21%

Night

66°F

SW 3 mph

Precip.
29%

27.08
thu

Day

82°F

E 2 mph

Precip.
44%

Night

66°F

SW 4 mph

Precip.
31%

28.08
fri

Day

82°F

SW 8 mph

Precip.
6%

Night

66°F

SW 4 mph

Precip.
26%

29.08
sat

Day

79°F

NE 1 mph

Precip.
57%

Night

66°F

SW 3 mph

Precip.
40%

30.08
sun

Day

79°F

W 1 mph

Precip.
57%

Night

66°F

SW 2 mph

Precip.
26%

31.08
mon

Day

82°F

SE 3 mph

Precip.
36%

Night

64°F

SW 4 mph

Precip.
31%

01.09
tue

Day

79°F

NE 5 mph

Precip.
14%

Night

64°F

SW 2 mph

Precip.
38%

02.09
wed

Day

81°F

NE 5 mph

Precip.
17%

Night

66°F

SW 2 mph

Precip.
33%

03.09
thu

Day

79°F

NE 4 mph

Precip.
25%

Night

66°F

SW 2 mph

Precip.
35%

04.09
fri

Day

81°F

E 4 mph

Precip.
15%

Night

66°F

SW 3 mph

Precip.
34%

05.09
sat

Day

75°F

E 2 mph

Precip.
69%

Night

66°F

SW 2 mph

Precip.
38%

06.09
sun

Day

75°F

NE 3 mph

Precip.
41%

Night

66°F

NE 4 mph

Precip.
96%

07.09
mon

Day

68°F

SW 2 mph

Precip.
38%

Night

66°F

SW 1 mph

Precip.
33%

08.09
tue

Day

77°F

NE 2 mph

Precip.
17%

Night

66°F

SW 3 mph

Precip.
42%

sea water
temperature

Alajuela

monthly
weather

Alajuela

current
weather

Alajuela

7 days
forecast

Alajuela

January
February
March
April

May
June
July
August

September
October
November
December

Show year:

2026

2025

2024

The average sea water temperature in August of 2026 was 86.8°F. The highest and lowest sea temperatures during the month were 87.8°F and 86.2°F.

Show year:

2025

2024

2023

The average sea water temperature in September of 2025 was 83.7°F. The highest and lowest sea temperatures during the month were 84.2°F and 83.1°F.