January Weather in San Giuliano del Sannio, Italy

Last updated: August 23, 2025

In January, the average temperature in San Giuliano del Sannio, Italy is a chilly 4°C (40°F), with highs reaching up to 17°C (64°F) and lows dropping to a brisk -13°C (8°F). Expect about 67 mm (2.6 in) of precipitation over 10 days, contributing to a high average humidity of 84%. Be prepared for a mix of cold air and wet weather!

January Temperature in San Giuliano del Sannio

In January in San Giuliano del Sannio, the average temperature is 4°C (40°F). The maximum can reach 17°C (64°F), while the minimum can drop as low as -13°C (8°F). Be prepared for a wide range of temperatures if you plan to travel during this time.

January Weather in San Giuliano del Sannio: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in San Giuliano del Sannio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Giuliano del Sannio, January typically has an average temperature of 4°C (40°F), with highs reaching up to 17°C (64°F) and lows dropping to around -13°C (8°F).

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

January Precipitation in San Giuliano del Sannio

In San Giuliano del Sannio in January, the total precipitation amount is 67 mm (2.6 in) over a period of 10 days.

January Precipitation Trends in San Giuliano del Sannio

The chart displays monthly precipitation patterns in San Giuliano del Sannio, 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 Giuliano del Sannio, January typically receives around 67 mm (2.6 inches) of precipitation spread over approximately 10 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 Giuliano del Sannio

In San Giuliano del Sannio in January, humidity is 84%. With an average temperature of 4°C (40°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and requiring extra layers to stay warm and dry while traveling.

January Average Humidity in San Giuliano del Sannio

This chart illustrates the average monthly humidity levels in San Giuliano del Sannio, 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 Giuliano del Sannio is approximately 84%, 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 Giuliano del Sannio

In San Giuliano del Sannio in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in San Giuliano del Sannio, you can check the information here.

Maximum UV Index Levels in San Giuliano del Sannio for January

The chart shows the monthly maximum UV Index (UVI) for San Giuliano del Sannio 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 Giuliano del Sannio typically reaches 3, which falls under the moderate exposure category.

Data source: San Giuliano del Sannio 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 Giuliano del Sannio Compares to Other Months

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

This table compares monthly weather conditions in San Giuliano del Sannio, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (40°F)	67 mm (2.6 inches)	84%	moderate
February Weather	6°C (44°F)	80 mm (3.1 inches)	76%	moderate
March Weather	7°C (45°F)	78 mm (3.1 inches)	69%	high
April Weather	11°C (52°F)	69 mm (2.7 inches)	70%	high
May Weather	15°C (59°F)	89 mm (3.5 inches)	70%	very high
June Weather	20°C (69°F)	52 mm (2.0 inches)	61%	very high
July Weather	23°C (73°F)	48 mm (1.9 inches)	57%	very high
August Weather	24°C (75°F)	35 mm (1.4 inches)	53%	very high
September Weather	19°C (66°F)	49 mm (1.9 inches)	65%	very high
October Weather	14°C (57°F)	70 mm (2.8 inches)	75%	high
November Weather	10°C (51°F)	128 mm (5.0 inches)	81%	moderate
December Weather	6°C (44°F)	86 mm (3.4 inches)	84%	low