Weather Forecast for Alajuela
Alajuela, Costa Rica
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Current Weather - Alajuela: 19°C
Current Weather - Alajuela: 19°C
Alajuela, Costa Rica
Mist
Feels like 20°C
Wind
6 km/h NE
Humidity
96%
Pressure
1012 mb
UV Index
0
Visibility
2 km
Mist
Wednesday, August 19, 2026
High
25°C
Low
18°C
Rain Chance
85%
Hourly Forecast
24°C
24°C
24°C
22°C
21°C
20°C
19°C
19°C
19°C
19°C
19°C
19°C
Day Statistics
Maximum Wind
8 km/h
Humidity
90%
Precipitation
4 mm
UV Index
9
Visibility
6 km
Rain Chance
85%
Snow Chance
0%
Sun & Moon
Sunrise
05:27 AM
Sunset
05:53 PM
Moonrise
11:30 AM
Moonset
11:16 PM
Moon Phase
First Quarter
Moon Illumination
48%
Air Quality
PM2.5
5.5
μg/m³
PM10
6.2
μg/m³
NO₂
12.8
μg/m³
O₃
35.6
μg/m³
SO₂
2.6
μg/m³
CO
462.7
μg/m³
Light rain shower
Thursday, August 20, 2026
High
26°C
Low
18°C
Rain Chance
90%
Hourly Forecast
19°C
18°C
18°C
18°C
19°C
19°C
19°C
20°C
21°C
22°C
24°C
26°C
25°C
25°C
23°C
22°C
21°C
21°C
20°C
20°C
19°C
19°C
19°C
19°C
Day Statistics
Maximum Wind
8 km/h
Humidity
90%
Precipitation
10 mm
UV Index
11
Visibility
8 km
Rain Chance
90%
Snow Chance
0%
Sun & Moon
Sunrise
05:27 AM
Sunset
05:52 PM
Moonrise
12:25 PM
Moonset
Does not set today
Moon Phase
First Quarter
Moon Illumination
58%
Air Quality
PM2.5
5.8
μg/m³
PM10
6.1
μg/m³
NO₂
12.8
μg/m³
O₃
36.9
μg/m³
SO₂
2.7
μg/m³
CO
414
μg/m³
Mist
Friday, August 21, 2026
High
30°C
Low
18°C
Rain Chance
82%
Hourly Forecast
18°C
18°C
19°C
19°C
18°C
18°C
19°C
19°C
21°C
25°C
28°C
30°C
30°C
28°C
26°C
25°C
23°C
22°C
21°C
21°C
20°C
20°C
20°C
20°C
Day Statistics
Maximum Wind
7 km/h
Humidity
83%
Precipitation
4 mm
UV Index
12
Visibility
8 km
Rain Chance
82%
Snow Chance
0%
Sun & Moon
Sunrise
05:27 AM
Sunset
05:52 PM
Moonrise
01:19 PM
Moonset
12:07 AM
Moon Phase
First Quarter
Moon Illumination
69%
Air Quality
PM2.5
5.3
μg/m³
PM10
5.4
μg/m³
NO₂
11.7
μg/m³
O₃
44.2
μg/m³
SO₂
2.6
μg/m³
CO
478.5
μg/m³
Light rain shower
Saturday, August 22, 2026
High
29°C
Low
19°C
Rain Chance
84%
Hourly Forecast
20°C
19°C
19°C
19°C
19°C
19°C
19°C
21°C
24°C
27°C
28°C
29°C
28°C
28°C
25°C
23°C
22°C
22°C
20°C
20°C
20°C
19°C
19°C
19°C
Day Statistics
Maximum Wind
9 km/h
Humidity
82%
Precipitation
7 mm
UV Index
12
Visibility
8 km
Rain Chance
84%
Snow Chance
0%
Sun & Moon
Sunrise
05:27 AM
Sunset
05:51 PM
Moonrise
02:11 PM
Moonset
12:59 AM
Moon Phase
Waxing Gibbous
Moon Illumination
78%
Air Quality
PM2.5
5.3
μg/m³
PM10
5.5
μg/m³
NO₂
8.7
μg/m³
O₃
40.1
μg/m³
SO₂
2.6
μg/m³
CO
304
μg/m³
Patchy rain nearby
Sunday, August 23, 2026
High
27°C
Low
18°C
Rain Chance
85%
Hourly Forecast
18°C
18°C
18°C
18°C
18°C
18°C
18°C
21°C
22°C
27°C
26°C
27°C
25°C
25°C
24°C
24°C
23°C
21°C
20°C
20°C
19°C
19°C
19°C
18°C
Day Statistics
Maximum Wind
9 km/h
Humidity
84%
Precipitation
11 mm
UV Index
6
Visibility
8 km
Rain Chance
85%
Snow Chance
0%
Sun & Moon
Sunrise
05:27 AM
Sunset
05:51 PM
Moonrise
03:00 PM
Moonset
01:52 AM
Moon Phase
Waxing Gibbous
Moon Illumination
86%
Air Quality
PM2.5
3.9
μg/m³
PM10
4
μg/m³
NO₂
8.3
μg/m³
O₃
17.3
μg/m³
SO₂
2
μg/m³
CO
255.4
μg/m³
Light rain shower
Monday, August 24, 2026
High
26°C
Low
18°C
Rain Chance
79%
Hourly Forecast
18°C
18°C
18°C
18°C
18°C
18°C
18°C
21°C
23°C
26°C
26°C
25°C
25°C
25°C
25°C
25°C
23°C
22°C
20°C
20°C
20°C
19°C
19°C
19°C
Day Statistics
Maximum Wind
9 km/h
Humidity
81%
Precipitation
4 mm
UV Index
6
Visibility
9 km
Rain Chance
79%
Snow Chance
0%
Sun & Moon
Sunrise
05:27 AM
Sunset
05:50 PM
Moonrise
03:46 PM
Moonset
02:43 AM
Moon Phase
Waxing Gibbous
Moon Illumination
93%
Light rain shower
Tuesday, August 25, 2026
High
26°C
Low
17°C
Rain Chance
87%
Hourly Forecast
18°C
18°C
17°C
17°C
17°C
17°C
18°C
20°C
23°C
26°C
25°C
24°C
23°C
22°C
21°C
20°C
19°C
19°C
18°C
18°C
18°C
18°C
18°C
18°C
Day Statistics
Maximum Wind
8 km/h
Humidity
88%
Precipitation
37 mm
UV Index
6
Visibility
8 km
Rain Chance
87%
Snow Chance
0%
Sun & Moon
Sunrise
05:27 AM
Sunset
05:50 PM
Moonrise
04:28 PM
Moonset
03:33 AM
Moon Phase
Full Moon
Moon Illumination
97%
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