January Weather in Fortios, Portugal

Last updated: August 27, 2025

In Fortios, Portugal, the average temperature in January hovers around 8°C (47°F), with the potential to dip as low as -3°C (27°F) or rise to a comfortable 20°C (67°F). Expect approximately 37 mm (1.4 in) of precipitation over 5 days, and feel the average humidity at a high 85%.

January Temperature in Fortios

In January in Fortios, the average temperature is 8°C (47°F). The maximum can reach 20°C (67°F), while the minimum can drop as low as -3°C (27°F). Travelers should be prepared for a range of temperatures and pack accordingly for both warm days and chilly nights.

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

The chart illustrates January temperature patterns in Fortios, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fortios, January typically has an average temperature of 8°C (47°F), with highs reaching up to 20°C (67°F) and lows dropping to around -3°C (27°F).

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

January Precipitation in Fortios

In Fortios in January, the precipitation amount is 37 mm (1.4 in) spread over a duration of 5 days.

January Precipitation Trends in Fortios

The chart displays monthly precipitation patterns in Fortios, 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 Fortios, January typically receives around 37 mm (1.4 inches) of precipitation spread over approximately 5 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 Fortios

In Fortios in January humidity is 85%. With an average temperature of 8°C (47°F), this humidity feels like a chilly dampness that clings to your skin, making outdoor activities feel less refreshing and more uncomfortable for traveling.

January Average Humidity in Fortios

This chart illustrates the average monthly humidity levels in Fortios, 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 Fortios is approximately 85%, 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 Fortios

In Fortios 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 Fortios, you can check the information here.

Maximum UV Index Levels in Fortios for January

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

Data source: Fortios 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 Fortios Compares to Other Months

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

This table compares monthly weather conditions in Fortios, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (47°F)	37 mm (1.4 inches)	85%	moderate
February Weather	11°C (52°F)	51 mm (2.0 inches)	75%	moderate
March Weather	12°C (54°F)	93 mm (3.6 inches)	72%	high
April Weather	14°C (58°F)	87 mm (3.4 inches)	70%	very high
May Weather	19°C (66°F)	41 mm (1.6 inches)	70%	very high
June Weather	21°C (70°F)	14 mm (0.6 inches)	63%	extreme
July Weather	24°C (76°F)	4 mm (0.2 inches)	60%	very high
August Weather	25°C (77°F)	7 mm (0.3 inches)	60%	very high
September Weather	22°C (73°F)	31 mm (1.2 inches)	67%	very high
October Weather	18°C (65°F)	53 mm (2.1 inches)	74%	high
November Weather	12°C (54°F)	80 mm (3.2 inches)	83%	moderate
December Weather	10°C (50°F)	75 mm (3.0 inches)	85%	moderate