January Weather in Costi, Romania

Last updated: August 27, 2025

In January, the average temperature in Costi, Romania hovers around 0°C (32°F), with a minimum dropping to -16°C (4°F) and a maximum rising to 14°C (57°F). Expect 27 mm (1.1 in) of precipitation spread over 5 days, contributing to an average humidity of 87%. Prepare for a chilly yet intriguing month!

January Temperature in Costi

In January in Costi, the average temperature is 0°C (32°F). Maximum temperatures can reach 14°C (57°F), while minimums can drop as low as -16°C (4°F). Be prepared for chilly weather, and dress in layers to stay warm during your travels.

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

The chart illustrates January temperature patterns in Costi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Costi, January typically has an average temperature of 0°C (32°F), with highs reaching up to 14°C (57°F) and lows dropping to around -16°C (4°F).

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

January Precipitation in Costi

In Costi in January, the precipitation amount is 27 mm (1.1 in) over a period of 5 days.

January Precipitation Trends in Costi

The chart displays monthly precipitation patterns in Costi, 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 Costi, January typically receives around 27 mm (1.1 inches) of precipitation spread over approximately 5 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 Costi

In Costi in January, humidity is 87%. With an average temperature of 0°C (32°F), this humidity feels like a damp chill that clings to your skin, making travel uncomfortable and cold, as each breath brings a heavy moisture that seeps into your clothes.

January Average Humidity in Costi

This chart illustrates the average monthly humidity levels in Costi, 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 Costi is approximately 87%, 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 Costi

In Costi in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Costi, you can visit Hourly UV Index in Costi.

Maximum UV Index Levels in Costi for January

The chart shows the monthly maximum UV Index (UVI) for Costi 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 Costi typically reaches 2, which falls under the low exposure category.

Data source: Costi 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 Costi Compares to Other Months

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

This table compares monthly weather conditions in Costi, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (32°F)	27 mm (1.1 inches)	87%	low
February Weather	3°C (37°F)	32 mm (1.3 inches)	83%	moderate
March Weather	6°C (43°F)	38 mm (1.5 inches)	80%	moderate
April Weather	12°C (53°F)	41 mm (1.6 inches)	76%	high
May Weather	18°C (64°F)	45 mm (1.8 inches)	73%	very high
June Weather	22°C (72°F)	89 mm (3.5 inches)	68%	very high
July Weather	24°C (75°F)	49 mm (1.9 inches)	65%	very high
August Weather	25°C (77°F)	19 mm (0.8 inches)	53%	very high
September Weather	20°C (67°F)	26 mm (1.0 inches)	61%	high
October Weather	13°C (56°F)	46 mm (1.8 inches)	77%	moderate
November Weather	7°C (46°F)	33 mm (1.3 inches)	85%	moderate
December Weather	3°C (38°F)	52 mm (2.1 inches)	86%	low