January Weather in San Sebastian, El Salvador

Last updated: August 23, 2025

In January, the average temperature in San Sebastian, El Salvador is a pleasant 26°C (79°F). Be prepared for a minimum of 15°C (59°F) and the possibility of soaring to a maximum of 36°C (98°F). With only 2 mm (0.1 in) of precipitation across 0 days, and an average humidity of 63%, it’s a great time to explore and enjoy the outdoors!

January Temperature in San Sebastian

In January in San Sebastian, the average temperature is 26°C (79°F), with maximums reaching 36°C (98°F) and minimums dropping as low as 15°C (59°F). This makes it an ideal time to travel for those who enjoy warm weather and plenty of sunshine.

January Weather in San Sebastian: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in San Sebastian, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Sebastian, January typically has an average temperature of 26°C (79°F), with highs reaching up to 36°C (98°F) and lows dropping to around 15°C (59°F).

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

January Precipitation in San Sebastian

In San Sebastian in January, the precipitation amount is 2 mm (0.1 in) during a span of 0 days.

January Precipitation Trends in San Sebastian

The chart displays monthly precipitation patterns in San Sebastian, 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 San Sebastian, January typically receives around 2 mm (0.1 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 San Sebastian

In San Sebastian in January humidity is 63%. With average temperature 26°C (79°F), this humidity feels like a warm embrace, making it perfect for leisurely strolls or exploring local attractions, though be prepared for a slight stickiness that may prompt you to seek shade or refreshing beverages along the way.

January Average Humidity in San Sebastian

This chart illustrates the average monthly humidity levels in San Sebastian, 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 San Sebastian is approximately 63%, 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 San Sebastian

In San Sebastian 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 San Sebastian.

Maximum UV Index Levels in San Sebastian for January

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

Data source: San Sebastian 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 San Sebastian Compares to Other Months

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

This table compares monthly weather conditions in San Sebastian, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (79°F)	2 mm (0.1 inches)	63%	extreme
February Weather	27°C (81°F)	5 mm (0.2 inches)	62%	extreme
March Weather	28°C (83°F)	5 mm (0.2 inches)	59%	extreme
April Weather	28°C (83°F)	53 mm (2.1 inches)	59%	extreme
May Weather	27°C (81°F)	311 mm (12.3 inches)	59%	extreme
June Weather	26°C (79°F)	303 mm (11.9 inches)	68%	extreme
July Weather	27°C (81°F)	136 mm (5.4 inches)	77%	extreme
August Weather	27°C (80°F)	240 mm (9.5 inches)	79%	extreme
September Weather	26°C (79°F)	277 mm (10.9 inches)	77%	extreme
October Weather	26°C (78°F)	314 mm (12.3 inches)	77%	extreme
November Weather	26°C (79°F)	66 mm (2.6 inches)	75%	very high
December Weather	26°C (79°F)	7 mm (0.3 inches)	66%	very high