Alajuela Weather in January
With daytime temperatures of 25°C (77°F) and nighttime lows of 16°C (61°F), January in Alajuela brings high temperatures during the day. The perfect weather makes it an appealing time to visit.
Rainfall in Alajuela in January
Rain is expected on roughly 12 days, totalling around 53 mm (2.1 in) for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Alajuela in January
Weather in Alajuela is at its perfect in January. Highs reach 25°C (77°F), while nights settle around 16°C (61°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. At 16°C (61°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Alajuela in January
There are approximately 283 hours of sunshine this month, resulting in mostly clear days.If you favor pleasant temperatures and minimal rainfall, January is one of the best months to visit Alajuela.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Costa Rica, check out our Alajuela's climate page.
Alajuela Temperature in January
Min Temperature
16°C (61°F)
Max Temperature
25°C (77°F)
Chance of Rain
39%
Precipitation
53 mm (2.1 in)
Rainy days
12 days
Humidity
68% *
Sunshine
283 hours *
Percentage Sunshine
*
Daily Historical Temperatures
46-year average (1976-2026)
Based on our historical records, temperatures in Alajuela typically stay consistent throughout January, with daily highs averaging around 25°C (77°F). Nights are pleasant, with lows around 19°C (66°F).
Average temperatures in January
Daily Historical Precipitation
46-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Alajuela in January
Browse day-by-day weather records for Alajuela spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Alajuela historical weather extremes in January
Based on weather observations in Alajuela between 1997 and 2025, these are the recorded extremes during January.
- The hottest January day on record in Alajuela reached 35°C (95°F) (January 20, 2024).
- The lowest daytime temperature in January was 20°C (68°F), recorded on January 15, 2000.
- The coldest night in January in Alajuela was on January 11, 1997, with a minimum of 13°C (55°F).
Best Places in Costa Rica in January
Find out more about the weather in Costa Rica and which places have the best travel conditions in this month. See all of Costa Rica in January →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Alajuela in January
Warm weather calls for comfortable, breathable clothing in January. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Rain is likely on several days, so bring a good rain jacket. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Alajuela in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Costa Rica, check out our Alajuela's climate page.
Temperature Rainfall Sunshine Humidity
See the full Alajuela climate overview or explore weather in Costa Rica.
