January Weather in Belen, Costa Rica

Last updated: August 23, 2025

In January, the average temperature in Belen, Costa Rica reaches a pleasant 27°C (81°F). While temperatures can dip as low as 17°C (63°F), they can also soar to a maximum of 35°C (95°F). With just 5 mm (0.2 in) of precipitation over 0 days, you can expect mostly dry conditions. The average humidity sits at a comfortable 66%, making it an ideal time to enjoy the outdoors!

January Temperature in Belen

In January in Belen, the average temperature is 27°C (81°F). Maximums can reach 35°C (95°F), and minimums can be as low as 17°C (63°F). This pleasant weather makes Belen an ideal destination for travelers seeking warm and comfortable conditions.

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

The chart illustrates January temperature patterns in Belen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Belen, January typically has an average temperature of 27°C (81°F), with highs reaching up to 35°C (95°F) and lows dropping to around 17°C (63°F).

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

January Precipitation in Belen

In Belen in January, the precipitation amount is 5 mm (0.2 in) during a span of 0 days.

January Precipitation Trends in Belen

The chart displays monthly precipitation patterns in Belen, 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 Belen, January typically receives around 5 mm (0.2 inches) of precipitation spread over approximately 0 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 Belen

In Belen in January, humidity is 66%. With an average temperature of 27°C (81°F), this humidity feels like a warm, sticky embrace, making outdoor exploration feel a bit more intense while increasing the need for hydration as you navigate through the sights.

January Average Humidity in Belen

This chart illustrates the average monthly humidity levels in Belen, 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 Belen is approximately 66%, 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 Belen

In Belen in January, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Belen.

Maximum UV Index Levels in Belen for January

The chart shows the monthly maximum UV Index (UVI) for Belen 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 Belen typically reaches 11, which falls under the extreme exposure category.

Data source: Belen 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 Belen Compares to Other Months

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

This table compares monthly weather conditions in Belen, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (81°F)	5 mm (0.2 inches)	66%	extreme
February Weather	28°C (82°F)	1 mm (0.0 inches)	64%	extreme
March Weather	28°C (83°F)	1 mm (0.0 inches)	63%	extreme
April Weather	29°C (85°F)	35 mm (1.4 inches)	63%	extreme
May Weather	28°C (82°F)	255 mm (10.1 inches)	63%	extreme
June Weather	27°C (81°F)	289 mm (11.4 inches)	74%	extreme
July Weather	27°C (81°F)	115 mm (4.5 inches)	85%	extreme
August Weather	27°C (81°F)	224 mm (8.8 inches)	82%	extreme
September Weather	26°C (79°F)	277 mm (10.9 inches)	80%	extreme
October Weather	26°C (79°F)	374 mm (14.7 inches)	79%	extreme
November Weather	26°C (79°F)	138 mm (5.4 inches)	79%	extreme
December Weather	27°C (80°F)	12 mm (0.5 inches)	70%	very high