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March Weather in Sienno, Poland

Last updated: August 27, 2025

In March, the average temperature in Sienno, Poland hovers around 4°C (39°F). Expect a dramatic range, as temperatures can drop to a frigid -16°C (3°F) or rise to a mild 20°C (68°F). This month sees about 38 mm (1.5 in) of precipitation spread over 10 days, and with an average humidity of 86%, it’s a month where you’ll feel the chill in the air.

March Temperature in Sienno

In March in Sienno, the average temperature is 4°C (39°F). Maximums can reach 20°C (68°F), while minimums can drop as low as -16°C (3°F). Be prepared for a wide range of temperatures that can enhance your travel experience, so dress in layers and enjoy all that Sienno has to offer!

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

The chart illustrates March temperature patterns in Sienno, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sienno, March typically has an average temperature of 4°C (39°F), with highs reaching up to 20°C (68°F) and lows dropping to around -16°C (3°F).
JanFebMarAprMayJunJulAugSepOctNovDec313339485767686859504234
Data source: Temperature data for Sienno 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 Sienno

In Sienno in March, the precipitation amount is 38 mm (1.5 in) over the course of 10 days.

March Precipitation Trends in Sienno

The chart displays monthly precipitation patterns in Sienno, 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 Sienno, March typically receives around 38 mm (1.5 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec3644385685648510879693947
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Sienno

In Sienno 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 Sienno

This chart illustrates the average monthly humidity levels in Sienno, 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 Sienno 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 Sienno

In Sienno 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 Sienno for better planning.

Maximum UV Index Levels in Sienno for March

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

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

This table compares monthly weather conditions in Sienno, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)36 mm (1.4 inches)91%low
February Weather1°C (33°F)44 mm (1.7 inches)89%low
March Weather4°C (39°F)38 mm (1.5 inches)86%moderate
April Weather9°C (48°F)56 mm (2.2 inches)76%moderate
May Weather14°C (57°F)85 mm (3.4 inches)58%high
June Weather19°C (67°F)64 mm (2.5 inches)56%very high
July Weather20°C (68°F)85 mm (3.4 inches)56%very high
August Weather20°C (68°F)108 mm (4.2 inches)55%high
September Weather15°C (59°F)79 mm (3.1 inches)68%high
October Weather10°C (51°F)69 mm (2.7 inches)84%moderate
November Weather5°C (42°F)38 mm (1.5 inches)89%low
December Weather1°C (35°F)47 mm (1.9 inches)91%low

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