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January Weather in Sumal, Romania

Last updated: August 27, 2025

In January, the average temperature in Sumal, Romania hovers around -1°C (31°F). Be prepared for chilly extremes, as temperatures can dip as low as -16°C (4°F) while occasionally reaching highs of 13°C (55°F). Expect 46 mm (1.8 in) of precipitation over approximately 10 days, contributing to an average humidity of a brisk 89%. Bundle up and embrace the winter wonderland!

January Temperature in Sumal

In January in Sumal, the average temperature is -1°C (31°F). Maximums can reach 13°C (55°F), while minimums can drop as low as -16°C (4°F). Be prepared for a wide range of temperatures when traveling during this time.

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

The chart illustrates January temperature patterns in Sumal, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sumal, January typically has an average temperature of -1°C (31°F), with highs reaching up to 13°C (55°F) and lows dropping to around -16°C (4°F).
JanFebMarAprMayJunJulAugSepOctNovDec313742526069717263534436
Data source: Temperature data for Sumal generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Sumal

In Sumal in January, the precipitation amount is 46 mm (1.8 in) over the course of 10 days.

January Precipitation Trends in Sumal

The chart displays monthly precipitation patterns in Sumal, 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 Sumal, January typically receives around 46 mm (1.8 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec4657514995103824249494774
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Sumal

In Sumal in January humidity is 89%. With an average temperature of -1°C (31°F), this humidity feels like a biting chill that seeps into your bones, making outdoor activities uncomfortable and urging you to seek warmth indoors.

January Average Humidity in Sumal

This chart illustrates the average monthly humidity levels in Sumal, 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 Sumal is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%87%83%75%72%72%71%62%68%84%90%92%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Sumal

In Sumal 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 Sumal, you can visit Hourly UV Index in Sumal.

Maximum UV Index Levels in Sumal for January

The chart shows the monthly maximum UV Index (UVI) for Sumal 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 Sumal typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689987422
Data source: Sumal 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 Sumal Compares to Other Months

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

This table compares monthly weather conditions in Sumal, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)46 mm (1.8 inches)89%low
February Weather3°C (37°F)57 mm (2.3 inches)87%moderate
March Weather6°C (43°F)50 mm (2.0 inches)83%moderate
April Weather11°C (52°F)49 mm (1.9 inches)75%high
May Weather16°C (60°F)95 mm (3.7 inches)72%very high
June Weather20°C (69°F)103 mm (4.1 inches)72%very high
July Weather21°C (71°F)82 mm (3.2 inches)71%very high
August Weather22°C (73°F)42 mm (1.7 inches)62%very high
September Weather17°C (63°F)49 mm (1.9 inches)68%high
October Weather12°C (54°F)49 mm (1.9 inches)84%moderate
November Weather7°C (45°F)47 mm (1.9 inches)90%low
December Weather2°C (37°F)74 mm (2.9 inches)92%low

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