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March Weather in Siennica, Poland

Last updated: August 27, 2025

In March, the average temperature in Siennica, Poland hovers around 4°C (39°F). Expect chilly nights, with minimums plunging to -18°C (0°F), while daytime highs can reach a pleasant 19°C (67°F). The area experiences about 40 mm (1.6 in) of precipitation over 10 days, contributing to an average humidity of 86%.

March Temperature in Siennica

In March in Siennica, the average temperature is 4°C (39°F), with maximums reaching 19°C (67°F) and minimums dropping as low as -18°C (0°F). Travelers should be prepared for a wide range of temperatures, from mild days to potentially very cold nights.

March Weather in Siennica: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Siennica, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Siennica, March typically has an average temperature of 4°C (39°F), with highs reaching up to 19°C (67°F) and lows dropping to around -18°C (0°F).
JanFebMarAprMayJunJulAugSepOctNovDec313338485768686759504234
Data source: Temperature data for Siennica 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.

March Precipitation in Siennica

In Siennica in March, the precipitation amount is 40 mm (1.6 in) over a span of 10 days.

March Precipitation Trends in Siennica

The chart displays monthly precipitation patterns in Siennica, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Siennica, March typically receives around 40 mm (1.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec434540418262878673723553
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Siennica

In Siennica in March humidity is 86%. With an average temperature of 4°C (39°F), this humidity feels like a chilly mist enveloping you, making it essential to bundle up while exploring, as each breath comes with a damp chill that can be quite refreshing yet starkly invigorating for travelers.

March Average Humidity in Siennica

This chart illustrates the average monthly humidity levels in Siennica, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Siennica is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%76%58%56%56%55%68%84%89%91%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Siennica

In Siennica in March, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Siennica for better planning.

Maximum UV Index Levels in Siennica for March

The chart shows the monthly maximum UV Index (UVI) for Siennica in March, 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 March, the maximum UV index in Siennica typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578876321
Data source: Siennica March 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 March Weather in Siennica Compares to Other Months

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

This table compares monthly weather conditions in Siennica, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)43 mm (1.7 inches)91%low
February Weather0°C (33°F)45 mm (1.8 inches)89%low
March Weather4°C (39°F)40 mm (1.6 inches)86%moderate
April Weather9°C (48°F)41 mm (1.6 inches)76%moderate
May Weather14°C (57°F)82 mm (3.2 inches)58%high
June Weather20°C (68°F)61 mm (2.4 inches)56%very high
July Weather20°C (68°F)86 mm (3.4 inches)56%very high
August Weather20°C (68°F)86 mm (3.4 inches)55%high
September Weather15°C (59°F)73 mm (2.9 inches)68%high
October Weather10°C (51°F)72 mm (2.8 inches)84%moderate
November Weather5°C (42°F)35 mm (1.4 inches)89%low
December Weather1°C (35°F)53 mm (2.1 inches)91%low

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