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April Weather in San Martino in Rio, Italy

Last updated: August 23, 2025

In April, the average temperature in San Martino in Rio, Italy is a comfortable 14°C (57°F). Expect minimums dipping to 0°C (32°F) and maximums climbing to 27°C (81°F). This month also sees 74 mm (2.9 in) of precipitation spread across about 10 days, with an average humidity level of 71%. Enjoy the variety that April brings!

April Temperature in San Martino in Rio

In April in San Martino in Rio, the average temperature is 14°C (57°F), with maximums reaching up to 27°C (81°F) and minimums dropping as low as 0°C (32°F). This makes it an ideal time for travelers to enjoy a mix of mild days and cooler nights, so be sure to pack layers for your visit.

April Weather in San Martino in Rio: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in San Martino in Rio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Martino in Rio, April typically has an average temperature of 14°C (57°F), with highs reaching up to 27°C (81°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec384449566475787869595040
Data source: Temperature data for San Martino in Rio 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.

April Precipitation in San Martino in Rio

In San Martino in Rio in April, the precipitation amount is 74 mm (2.9 in) spread over a period of 10 days.

April Precipitation Trends in San Martino in Rio

The chart displays monthly precipitation patterns in San Martino in Rio, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In San Martino in Rio, April typically receives around 74 mm (2.9 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec24625174111496658936611478
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in San Martino in Rio

In San Martino in Rio in April, humidity is 71%. With an average temperature of 14°C (57°F), this humidity feels like a damp blanket enveloping you, making outdoor activities less enjoyable and encouraging visitors to seek refuge in shaded spots or air-conditioned spaces.

April Average Humidity in San Martino in Rio

This chart illustrates the average monthly humidity levels in San Martino in Rio, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in San Martino in Rio is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%79%69%71%70%65%61%54%66%83%88%85%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in San Martino in Rio

In San Martino in Rio in April, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in San Martino in Rio, you can refer to this Hourly UV Index in San Martino in Rio.

Maximum UV Index Levels in San Martino in Rio for April

The chart shows the monthly maximum UV Index (UVI) for San Martino in Rio in April, 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 April, the maximum UV index in San Martino in Rio typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986532
Data source: San Martino in Rio April 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 April Weather in San Martino in Rio Compares to Other Months

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

This table compares monthly weather conditions in San Martino in Rio, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)24 mm (0.9 inches)87%low
February Weather7°C (44°F)62 mm (2.4 inches)79%moderate
March Weather9°C (49°F)51 mm (2.0 inches)69%moderate
April Weather14°C (57°F)74 mm (2.9 inches)71%high
May Weather18°C (65°F)111 mm (4.4 inches)70%very high
June Weather24°C (75°F)49 mm (1.9 inches)65%very high
July Weather26°C (78°F)66 mm (2.6 inches)61%very high
August Weather26°C (79°F)58 mm (2.3 inches)54%very high
September Weather20°C (69°F)93 mm (3.7 inches)66%high
October Weather15°C (59°F)66 mm (2.6 inches)83%moderate
November Weather10°C (50°F)114 mm (4.5 inches)88%moderate
December Weather5°C (41°F)78 mm (3.1 inches)85%low

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