January Weather in Rio Segundo, Costa Rica

Last updated: August 23, 2025

In January, the average temperature in Rio Segundo, Costa Rica is a pleasant 19°C (66°F). Expect minimum temperatures around 12°C (54°F) and occasional highs reaching 26°C (78°F). However, be prepared for 109 mm (4.3 in) of precipitation spread over 13 days, contributing to a cozy average humidity of 71%.

January Temperature in Rio Segundo

In January in Rio Segundo, the average temperature is 19°C (66°F). Maximums can reach 26°C (78°F), while minimums can drop as low as 12°C (54°F). This mild weather makes it an ideal time for exploring the sights and enjoying outdoor activities.

January Weather in Rio Segundo: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Rio Segundo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio Segundo, January typically has an average temperature of 19°C (66°F), with highs reaching up to 26°C (78°F) and lows dropping to around 12°C (54°F).

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

January Precipitation in Rio Segundo

In Rio Segundo in January, the precipitation amount is 109 mm (4.3 in), which occurs during 13 days.

January Precipitation Trends in Rio Segundo

The chart displays monthly precipitation patterns in Rio Segundo, 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 Rio Segundo, January typically receives around 109 mm (4.3 inches) of precipitation spread over approximately 13 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Rio Segundo

In Rio Segundo in January humidity is 71%. With an average temperature of 19°C (66°F), this humidity feels like a warm, balmy embrace that enhances the tropical atmosphere, making it a perfect backdrop for leisurely strolls and outdoor adventures, though it may also lead to a slightly sticky feeling as you explore.

January Average Humidity in Rio Segundo

This chart illustrates the average monthly humidity levels in Rio Segundo, 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 Rio Segundo is approximately 71%, 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 Rio Segundo

In Rio Segundo 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 Rio Segundo.

Maximum UV Index Levels in Rio Segundo for January

The chart shows the monthly maximum UV Index (UVI) for Rio Segundo 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 Rio Segundo typically reaches 12, which falls under the extreme exposure category.

Data source: Rio Segundo 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 Rio Segundo Compares to Other Months

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

This table compares monthly weather conditions in Rio Segundo, 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 (66°F)	109 mm (4.3 inches)	71%	extreme
February Weather	19°C (66°F)	48 mm (1.9 inches)	70%	extreme
March Weather	19°C (67°F)	57 mm (2.2 inches)	68%	extreme
April Weather	21°C (69°F)	113 mm (4.5 inches)	69%	extreme
May Weather	21°C (70°F)	310 mm (12.2 inches)	70%	extreme
June Weather	21°C (70°F)	275 mm (10.8 inches)	81%	extreme
July Weather	21°C (69°F)	275 mm (10.8 inches)	88%	extreme
August Weather	21°C (70°F)	273 mm (10.7 inches)	85%	extreme
September Weather	21°C (70°F)	287 mm (11.3 inches)	84%	extreme
October Weather	21°C (69°F)	402 mm (15.8 inches)	82%	extreme
November Weather	20°C (68°F)	272 mm (10.7 inches)	81%	extreme
December Weather	19°C (67°F)	192 mm (7.6 inches)	74%	very high