Atenas Weather in January
January in Atenas sees daytime temperatures around 28°C (82°F) and lows of 18°C (64°F) at night. The perfect weather makes it a good time to visit.
Rainfall in Atenas in January
Analyzing past climate data, one can expect approximately 11 days of rain, averaging 44 mm (1.7 in). A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Atenas in January
Weather in Atenas is at its perfect in January. Highs reach 28°C (82°F), while nights settle around 18°C (64°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With lows of 18°C (64°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.
Sunshine in Atenas in January
There are approximately 285 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 Atenas.
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 Atenas's climate page.
Atenas Temperature in January
Min Temperature
18°C (64°F)
Max Temperature
28°C (82°F)
Chance of Rain
37%
Precipitation
44 mm (1.7 in)
Rainy days
11 days
Humidity
80% *
Sunshine
285 hours *
Percentage Sunshine
*
Daily Historical Temperatures
46-year average (1976-2026)
Based on our historical records, temperatures in Atenas typically stay consistent throughout January, with daily highs averaging around 28°C (82°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 Atenas in January
Browse day-by-day weather records for Atenas spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Atenas historical weather extremes in January
Based on weather observations in Atenas between 1997 and 2025, these are the recorded extremes during January.
- The warmest day in January was on January 20, 2024, with a maximum of 31°C (88°F).
- The lowest daytime temperature in January was 20°C (68°F), recorded on January 15, 2000.
- The coldest night in January in Atenas 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
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unpleasant
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What to Wear in Atenas 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 Atenas 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 Atenas's climate page.
Temperature Rainfall Sunshine Humidity
See the full Atenas climate overview or explore weather in Costa Rica.
