January Weather in Costa Rica

Last updated: March 2, 2024

The weather in Costa Rica, Mexico, during January is characterized by an average temperature of 21°C (70°F). Highs can soar to 31°C (89°F), while lows may dip to 12°C (54°F). Typically, the humidity level in Costa Rica throughout January hovers around 76%.

12°C (54°F)

Minimum temperature

21°C (70°F)

Average temperature

31°C (89°F)

Maximum temperature

76%

Humidity

Precipitation and Sunshine hours

In January, Costa Rica averages 13 mm (0.5 inches) of rainfall, typically over the course of 3 rainy days. The month enjoys an average of 11 hours 18 minutes of daylight, with the sun shining for approximately 8 hours 13 minutes each day. Additionally, there is a 60% probability of sunny days during this period.

13 mm (0.5 inches)

Precipitation

3 rainy days

Rainy days

8 hours 13 minutes

Sunshine hours

60%

Chance of sun

UV Index

In January, the UV Index in Costa Rica reaches a maximum of 11, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 10 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00
UVI	1	2	4	7	9	11	10	8	5	2	1	0	0
Exposure	Low		Moderate	High	VeryHigh	Extreme	VeryHigh		Moderate	Low
Time to burn	45 min		30 min	25 min	15 min	10 min	15 min		30 min	45 min