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April Weather in Castelu, Romania

Last updated: August 27, 2025

In Castelu, Romania, the average temperature in April hovers around 11°C (52°F), with extremes ranging from a brisk -2°C (29°F) to a warm 26°C (80°F). Expect about 30 mm (1.2 in) of precipitation spread over 7 days, and enjoy an average humidity of 76% that adds a touch of moisture to the air.

April Temperature in Castelu

In April in Castelu, the average temperature is 11°C (52°F). The maximum can reach 26°C (80°F), and the minimum can be as low as -2°C (29°F). This makes it a great time for travelers to experience a diverse and pleasant range of weather, perfect for outdoor activities.

April Weather in Castelu: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Castelu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castelu, April typically has an average temperature of 11°C (52°F), with highs reaching up to 26°C (80°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec343943526271757668574840
Data source: Temperature data for Castelu 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 Castelu

In Castelu in April, the total precipitation amount is 30 mm (1.2 in) over a span of 7 days.

April Precipitation Trends in Castelu

The chart displays monthly precipitation patterns in Castelu, 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 Castelu, April typically receives around 30 mm (1.2 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec424151304387591816453959
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Castelu

In Castelu in April, humidity is 76%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that can make outdoor exploration feel uncomfortable and heavy, often leaving travelers longing for a warm café to escape the cool, moist air.

April Average Humidity in Castelu

This chart illustrates the average monthly humidity levels in Castelu, 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 Castelu is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%83%80%76%73%68%65%53%61%77%85%86%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Castelu

In Castelu in April, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Castelu.

Maximum UV Index Levels in Castelu for April

The chart shows the monthly maximum UV Index (UVI) for Castelu 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 Castelu typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789987532
Data source: Castelu 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 Castelu Compares to Other Months

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

This table compares monthly weather conditions in Castelu, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)42 mm (1.7 inches)87%low
February Weather4°C (39°F)41 mm (1.6 inches)83%moderate
March Weather6°C (43°F)51 mm (2.0 inches)80%moderate
April Weather11°C (52°F)30 mm (1.2 inches)76%high
May Weather17°C (62°F)43 mm (1.7 inches)73%very high
June Weather22°C (71°F)87 mm (3.4 inches)68%very high
July Weather24°C (75°F)59 mm (2.3 inches)65%very high
August Weather24°C (76°F)18 mm (0.7 inches)53%very high
September Weather20°C (68°F)16 mm (0.6 inches)61%high
October Weather14°C (58°F)45 mm (1.8 inches)77%moderate
November Weather9°C (48°F)39 mm (1.6 inches)85%moderate
December Weather4°C (40°F)59 mm (2.3 inches)86%low

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