January Weather in Mercedes, Costa Rica

Last updated: August 23, 2025

In January, the average temperature in Mercedes, Costa Rica hovers around 19°C (67°F), providing a comfortable climate. You can expect a pleasant range, with nighttime lows dipping to 12°C (55°F) and daytime highs reaching up to 26°C (80°F). However, be prepared for some moisture, as the region sees an average precipitation of 89 mm (3.5 in) over approximately 18 days. With an average humidity level of 68%, the weather is distinctly refreshing, making it a delightful time to explore!

January Temperature in Mercedes

In January in Mercedes, the average temperature is 19°C (67°F). The maximum can reach 26°C (80°F), and the minimum can be as low as 12°C (55°F). This pleasant climate makes it an ideal time for traveling to enjoy outdoor activities and explore the local attractions.

January Weather in Mercedes: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Mercedes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mercedes, January typically has an average temperature of 19°C (67°F), with highs reaching up to 26°C (80°F) and lows dropping to around 12°C (55°F).

Data source: Temperature data for Mercedes generated using information from the Copernicus Climate Change Service.

January Precipitation in Mercedes

In Mercedes in January, the precipitation amount is 89 mm (3.5 in) accumulated over 18 days.

January Precipitation Trends in Mercedes

The chart displays monthly precipitation patterns in Mercedes, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Mercedes, January typically receives around 89 mm (3.5 inches) of precipitation spread over approximately 18 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in Mercedes

In Mercedes in January, humidity is 68%. With an average temperature of 19°C (67°F), this humidity feels like a warm, enveloping blanket, making travel pleasant yet slightly muggy, which can be refreshing while exploring but may require occasional breaks to stay comfortable.

January Average Humidity in Mercedes

This chart illustrates the average monthly humidity levels in Mercedes, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Mercedes is approximately 68%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Mercedes

In Mercedes in January, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Mercedes.

Maximum UV Index Levels in Mercedes for January

The chart shows the monthly maximum UV Index (UVI) for Mercedes in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Mercedes typically reaches 12, which falls under the extreme exposure category.

Data source: Mercedes January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How January Weather in Mercedes Compares to Other Months

Weather in Mercedes varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Mercedes, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Mercedes, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	19°C (67°F)	89 mm (3.5 inches)	68%	extreme
February Weather	20°C (68°F)	44 mm (1.8 inches)	68%	extreme
March Weather	20°C (68°F)	57 mm (2.3 inches)	66%	extreme
April Weather	20°C (69°F)	251 mm (9.9 inches)	67%	extreme
May Weather	20°C (69°F)	609 mm (24.0 inches)	69%	extreme
June Weather	20°C (69°F)	568 mm (22.4 inches)	84%	extreme
July Weather	20°C (69°F)	477 mm (18.8 inches)	85%	extreme
August Weather	20°C (68°F)	589 mm (23.2 inches)	82%	extreme
September Weather	20°C (68°F)	536 mm (21.1 inches)	81%	extreme
October Weather	20°C (68°F)	802 mm (31.6 inches)	80%	extreme
November Weather	20°C (67°F)	620 mm (24.4 inches)	80%	extreme
December Weather	19°C (67°F)	191 mm (7.5 inches)	72%	extreme