Weather Forecast for Alajuela
Alajuela, Costa Rica
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Current Weather - Alajuela: 18°C
Current Weather - Alajuela: 18°C
Alajuela, Costa Rica
Overcast
Feels like 19°C
Wind
7 km/h NE
Humidity
94%
Pressure
1013 mb
UV Index
0
Visibility
10 km
Light rain shower
Tuesday, September 08, 2026
High
30°C
Low
18°C
Rain Chance
82%
Hourly Forecast
25°C
25°C
24°C
22°C
21°C
21°C
20°C
20°C
20°C
20°C
19°C
Day Statistics
Maximum Wind
9 km/h
Humidity
83%
Precipitation
7 mm
UV Index
13
Visibility
8 km
Rain Chance
82%
Snow Chance
0%
Sun & Moon
Sunrise
05:27 AM
Sunset
05:41 PM
Moonrise
02:42 AM
Moonset
03:40 PM
Moon Phase
Waning Crescent
Moon Illumination
6%
Air Quality
PM2.5
7.1
μg/m³
PM10
8.2
μg/m³
NO₂
9.6
μg/m³
O₃
51.4
μg/m³
SO₂
2.7
μg/m³
CO
456.5
μg/m³
Sunny
Wednesday, September 09, 2026
High
29°C
Low
18°C
Rain Chance
75%
Hourly Forecast
19°C
18°C
18°C
18°C
18°C
18°C
19°C
21°C
24°C
26°C
28°C
29°C
28°C
26°C
26°C
25°C
24°C
22°C
20°C
20°C
19°C
19°C
19°C
18°C
Day Statistics
Maximum Wind
8 km/h
Humidity
80%
Precipitation
7 mm
UV Index
13
Visibility
10 km
Rain Chance
75%
Snow Chance
0%
Sun & Moon
Sunrise
05:27 AM
Sunset
05:41 PM
Moonrise
03:44 AM
Moonset
04:30 PM
Moon Phase
New Moon
Moon Illumination
2%
Air Quality
PM2.5
5.4
μg/m³
PM10
5.9
μg/m³
NO₂
11.9
μg/m³
O₃
40
μg/m³
SO₂
2.9
μg/m³
CO
407.3
μg/m³
Partly Cloudy
Thursday, September 10, 2026
High
28°C
Low
18°C
Rain Chance
78%
Hourly Forecast
18°C
18°C
18°C
18°C
18°C
18°C
18°C
21°C
23°C
26°C
28°C
28°C
26°C
24°C
24°C
24°C
24°C
22°C
20°C
19°C
19°C
19°C
19°C
19°C
Day Statistics
Maximum Wind
8 km/h
Humidity
81%
Precipitation
6 mm
UV Index
12
Visibility
10 km
Rain Chance
78%
Snow Chance
0%
Sun & Moon
Sunrise
05:27 AM
Sunset
05:40 PM
Moonrise
04:42 AM
Moonset
05:17 PM
Moon Phase
New Moon
Moon Illumination
0%
Air Quality
PM2.5
6.3
μg/m³
PM10
6.7
μg/m³
NO₂
15
μg/m³
O₃
34.3
μg/m³
SO₂
3
μg/m³
CO
601.7
μg/m³
Light rain shower
Friday, September 11, 2026
High
29°C
Low
17°C
Rain Chance
81%
Hourly Forecast
18°C
18°C
17°C
17°C
17°C
18°C
18°C
21°C
23°C
26°C
28°C
29°C
26°C
24°C
23°C
23°C
23°C
22°C
20°C
19°C
19°C
19°C
19°C
19°C
Day Statistics
Maximum Wind
8 km/h
Humidity
82%
Precipitation
9 mm
UV Index
11
Visibility
9 km
Rain Chance
81%
Snow Chance
0%
Sun & Moon
Sunrise
05:26 AM
Sunset
05:40 PM
Moonrise
05:38 AM
Moonset
06:02 PM
Moon Phase
New Moon
Moon Illumination
0%
Air Quality
PM2.5
7
μg/m³
PM10
7.6
μg/m³
NO₂
13.5
μg/m³
O₃
39.2
μg/m³
SO₂
3.1
μg/m³
CO
361.6
μg/m³
Light rain shower
Saturday, September 12, 2026
High
26°C
Low
17°C
Rain Chance
84%
Hourly Forecast
19°C
19°C
19°C
18°C
18°C
17°C
18°C
21°C
23°C
26°C
26°C
26°C
25°C
25°C
24°C
24°C
23°C
22°C
21°C
20°C
20°C
19°C
19°C
19°C
Day Statistics
Maximum Wind
8 km/h
Humidity
85%
Precipitation
11 mm
UV Index
7
Visibility
9 km
Rain Chance
84%
Snow Chance
0%
Sun & Moon
Sunrise
05:26 AM
Sunset
05:39 PM
Moonrise
06:33 AM
Moonset
06:47 PM
Moon Phase
New Moon
Moon Illumination
3%
Air Quality
PM2.5
6.9
μg/m³
PM10
7.2
μg/m³
NO₂
13.6
μg/m³
O₃
13.3
μg/m³
SO₂
2.5
μg/m³
CO
314.6
μg/m³
Light rain shower
Sunday, September 13, 2026
High
26°C
Low
18°C
Rain Chance
86%
Hourly Forecast
18°C
18°C
18°C
18°C
18°C
19°C
19°C
21°C
24°C
26°C
26°C
26°C
26°C
25°C
24°C
24°C
23°C
21°C
20°C
20°C
20°C
20°C
20°C
20°C
Day Statistics
Maximum Wind
7 km/h
Humidity
87%
Precipitation
30 mm
UV Index
7
Visibility
7 km
Rain Chance
86%
Snow Chance
0%
Sun & Moon
Sunrise
05:26 AM
Sunset
05:38 PM
Moonrise
07:28 AM
Moonset
07:32 PM
Moon Phase
Waxing Crescent
Moon Illumination
8%
Light rain shower
Monday, September 14, 2026
High
27°C
Low
19°C
Rain Chance
91%
Hourly Forecast
20°C
19°C
19°C
19°C
19°C
19°C
19°C
21°C
22°C
24°C
25°C
26°C
27°C
25°C
24°C
22°C
22°C
21°C
20°C
20°C
20°C
20°C
19°C
19°C
Day Statistics
Maximum Wind
6 km/h
Humidity
87%
Precipitation
29 mm
UV Index
6
Visibility
7 km
Rain Chance
91%
Snow Chance
0%
Sun & Moon
Sunrise
05:26 AM
Sunset
05:38 PM
Moonrise
08:23 AM
Moonset
08:18 PM
Moon Phase
Waxing Crescent
Moon Illumination
14%
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