🇨🇷 Weather in Alajuela
Map Overlays:
Hourly Forecast for Alajuela
02:00
17°
15%
03:00
17°
17%
04:00
17°
17%
05:00
17°
17%
06:00
18°
23%
07:00
22°
19%
08:00
24°
13%
09:00
26°
10%
10:00
27°
12%
11:00
28°
11%
12:00
28°
17%
13:00
27°
11%
14:00
27°
9%
15:00
27°
12%
16:00
26°
12%
17:00
24°
14%
18:00
21°
12%
19:00
19°
15%
20:00
19°
16%
21:00
19°
15%
22:00
18°
15%
23:00
18°
17%
00:00
17°
19%
01:00
17°
19%
14-Day Forecast for Alajuela
2026-08-10
Patchy rain nearby
28° /
17°
2026-08-11
Partly Cloudy
30° /
16°
2026-08-12
Patchy rain nearby
29° /
17°
2026-08-13
Patchy rain nearby
29° /
17°
2026-08-14
Patchy rain nearby
28° /
17°
2026-08-15
Patchy rain nearby
22° /
18°
2026-08-16
Light rain shower
24° /
16°
Additional Forecasts for Alajuela
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 167.0 μg/m³
O₃ (Ozone) 17.0 μg/m³
NO₂ (Nitrogen Dioxide) 10.8 μg/m³
SO₂ (Sulphur Dioxide) 2.9 μg/m³
PM2.5 (Fine particles) 8.0 μg/m³
PM10 (Coarse particles) 10.2 μg/m³
Historical Weather
Weather Forecasts for Other Cities in Costa Rica
Weather in Alajuela — FAQ
Answers refreshed each request based on current conditions in Alajuela.
What is the weather like right now in Alajuela?
Right now in Alajuela, Costa Rica the temperature is 16.9°C (feels like 16.8°C), with clear. Relative humidity is 89% and wind is 9.4 km/h.
What is today's high and low temperature in Alajuela?
Today's forecast high in Alajuela is 28.4°C and the overnight low is 16.8°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in Alajuela today?
The chance of precipitation in Alajuela today is 25%. Forecast accuracy is highest within the next 6 hours and decreases steadily out to 14 days.
How often does the weather here update?
Current observations refresh every 15-60 minutes from the nearest monitoring stations operated by national meteorological agencies. The hourly forecast updates approximately every hour; the 7- and 14-day outlook is recomputed several times per day.
What does 'feels like' temperature mean?
Feels-like (apparent) temperature accounts for humidity, wind chill and direct sunshine — variables that change how the human body perceives heat or cold. On hot, humid days it can be 3-7°C above the actual reading; on cold windy days it can be 5-15°C below.
Why does the temperature in Alajuela differ from nearby cities?
Even short distances can change temperatures noticeably. Alajuela's reading reflects altitude, proximity to large bodies of water, urban heat island effects, and the exact location of the monitoring stations supplying the data. Coastal cities are typically milder and more humid than inland equivalents.