April Weather in Ust'-Ilimsk, Russian Federation

Last updated: August 27, 2025

In April, the average temperature in Ust'-Ilimsk, Russian Federation hovers around 1°C (34°F). Expect chilly nights where temperatures can plummet to a frigid -17°C (2°F), while occasional warm spells may reach up to 25°C (77°F). With an average precipitation of 28 mm (1.1 in) over 8 days, the air tends to be quite damp, leading to an average humidity of 84%. Prepare for a month of contrasts!

April Temperature in Ust'-Ilimsk

In April in Ust'-Ilimsk, the average temperature is 1°C (34°F). Maximums can reach 25°C (77°F), and minimums can be as low as -17°C (2°F). Pack accordingly for your trip, as you'll experience a wide range of temperatures during your stay.

April Weather in Ust'-Ilimsk: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Ust'-Ilimsk, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ust'-Ilimsk, April typically has an average temperature of 1°C (34°F), with highs reaching up to 25°C (77°F) and lows dropping to around -17°C (2°F).

Data source: Temperature data for Ust'-Ilimsk generated using information from the Copernicus Climate Change Service.

April Precipitation in Ust'-Ilimsk

In Ust'-Ilimsk in April, the total precipitation amount is 28 mm (1.1 in) spread over 8 days.

April Precipitation Trends in Ust'-Ilimsk

The chart displays monthly precipitation patterns in Ust'-Ilimsk, 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 Ust'-Ilimsk, April typically receives around 28 mm (1.1 inches) of precipitation spread over approximately 8 days.

Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

April Humidity in Ust'-Ilimsk

In Ust'-Ilimsk in April humidity is 84%. With an average temperature of 1°C (34°F), this humidity feels like a biting chill that seeps into your bones, making travel uncomfortable and requiring extra layers to keep warm while navigating the damp air.

April Average Humidity in Ust'-Ilimsk

This chart illustrates the average monthly humidity levels in Ust'-Ilimsk, 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 Ust'-Ilimsk is approximately 84%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Ust'-Ilimsk

In Ust'-Ilimsk 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 Ust'-Ilimsk.

Maximum UV Index Levels in Ust'-Ilimsk for April

The chart shows the monthly maximum UV Index (UVI) for Ust'-Ilimsk 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 Ust'-Ilimsk typically reaches 5, which falls under the moderate exposure category.

Data source: Ust'-Ilimsk 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 Ust'-Ilimsk Compares to Other Months

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

This table compares monthly weather conditions in Ust'-Ilimsk, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-21°C (-6°F)	24 mm (0.9 inches)	99%	low
February Weather	-18°C (-1°F)	22 mm (0.9 inches)	96%	low
March Weather	-7°C (19°F)	30 mm (1.2 inches)	88%	moderate
April Weather	1°C (34°F)	28 mm (1.1 inches)	84%	moderate
May Weather	8°C (47°F)	45 mm (1.8 inches)	76%	moderate
June Weather	17°C (63°F)	51 mm (2.0 inches)	62%	high
July Weather	19°C (66°F)	41 mm (1.6 inches)	67%	high
August Weather	17°C (62°F)	53 mm (2.1 inches)	65%	high
September Weather	8°C (47°F)	58 mm (2.3 inches)	79%	moderate
October Weather	0°C (33°F)	40 mm (1.6 inches)	92%	moderate
November Weather	-12°C (11°F)	44 mm (1.7 inches)	99%	low
December Weather	-22°C (-6°F)	45 mm (1.8 inches)	100%	low