nomadseason

April Weather in Ostashkov, Russian Federation

Last updated: August 27, 2025

In April, the average temperature in Ostashkov, Russian Federation hovers around 4°C (39°F). Expect a chill, with minimum temperatures dipping to -12°C (11°F), while the mercury may rise to a pleasant 23°C (74°F) at times. Be prepared for some moisture, as 48 mm (1.9 in) of precipitation is expected over 12 days, accompanied by a high average humidity of 85%.

April Temperature in Ostashkov

In April in Ostashkov, the average temperature is 4°C (39°F). Maximums can reach 23°C (74°F), and minimums can be as low as -12°C (11°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both warmth and cooler conditions.

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

The chart illustrates April temperature patterns in Ostashkov, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ostashkov, April typically has an average temperature of 4°C (39°F), with highs reaching up to 23°C (74°F) and lows dropping to around -12°C (11°F).
JanFebMarAprMayJunJulAugSepOctNovDec232329395261636153433426
Data source: Temperature data for Ostashkov generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Ostashkov

In Ostashkov in April, the precipitation amount is 48 mm (1.9 in) over a span of 12 days.

April Precipitation Trends in Ostashkov

The chart displays monthly precipitation patterns in Ostashkov, 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 Ostashkov, April typically receives around 48 mm (1.9 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec46434948708811910892746463
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

April Humidity in Ostashkov

In Ostashkov in April, humidity is 85%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and requiring extra layers to ward off the cold and moisture.

April Average Humidity in Ostashkov

This chart illustrates the average monthly humidity levels in Ostashkov, 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 Ostashkov is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec97%94%90%85%71%77%82%83%89%93%94%94%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Ostashkov

In Ostashkov in April, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Ostashkov.

Maximum UV Index Levels in Ostashkov for April

The chart shows the monthly maximum UV Index (UVI) for Ostashkov 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 Ostashkov typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124567765211
Data source: Ostashkov 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 Ostashkov Compares to Other Months

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

This table compares monthly weather conditions in Ostashkov, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)46 mm (1.8 inches)97%low
February Weather-5°C (24°F)43 mm (1.7 inches)94%low
March Weather-1°C (30°F)49 mm (1.9 inches)90%moderate
April Weather4°C (39°F)48 mm (1.9 inches)85%moderate
May Weather11°C (52°F)70 mm (2.7 inches)71%high
June Weather16°C (62°F)88 mm (3.5 inches)77%high
July Weather17°C (63°F)119 mm (4.7 inches)82%high
August Weather16°C (62°F)108 mm (4.2 inches)83%high
September Weather11°C (53°F)92 mm (3.6 inches)89%moderate
October Weather6°C (43°F)74 mm (2.9 inches)93%low
November Weather1°C (34°F)64 mm (2.5 inches)94%low
December Weather-3°C (26°F)63 mm (2.5 inches)94%low

Compare Ostashkov's Climate with Cities Worldwide