April Weather in Alto, United States

Last updated: June 24, 2025

In Alto, United States, the average temperature in April hovers around 16°C (61°F). During this time, you might experience a minimum of -1°C (31°F) and a maximum of 29°C (85°F). Be prepared for 130 mm (5.1 in) of precipitation over the course of 9 days, contributing to an average humidity level of 82%.

April Temperature in Alto

In April in Alto, the average temperature is 16°C (61°F). Maximum temperatures can reach up to 29°C (85°F), while the minimum can drop to as low as -1°C (31°F). Be prepared for a wide range of temperatures when traveling during this time, ensuring you pack both warm and light clothing.

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

The chart illustrates April temperature patterns in Alto, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alto, April typically has an average temperature of 16°C (61°F), with highs reaching up to 29°C (85°F) and lows dropping to around -1°C (31°F).

Data source: Temperature data for Alto generated using information from the Copernicus Climate Change Service.

April Precipitation in Alto

In Alto in April, the precipitation amount is 130 mm (5.1 in) over the course of 9 days.

April Precipitation Trends in Alto

The chart displays monthly precipitation patterns in Alto, 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 Alto, April typically receives around 130 mm (5.1 inches) of precipitation spread over approximately 9 days.

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

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Millimeters (mm) Inches (in)

April Humidity in Alto

In Alto in April humidity is 82%. With an average temperature of 16°C (61°F), this humidity feels like a heavy blanket enveloping you, making travel feel a bit sluggish and requiring frequent breaks to hydrate and cool down.

April Average Humidity in Alto

This chart illustrates the average monthly humidity levels in Alto, 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 Alto is approximately 82%, 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 Alto

In Alto in April, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Alto.

Maximum UV Index Levels in Alto for April

The chart shows the monthly maximum UV Index (UVI) for Alto 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 Alto typically reaches 11, which falls under the extreme exposure category.

Data source: Alto 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 Alto Compares to Other Months

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

This table compares monthly weather conditions in Alto, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (44°F)	115 mm (4.5 inches)	86%	moderate
February Weather	9°C (49°F)	164 mm (6.5 inches)	86%	high
March Weather	12°C (54°F)	129 mm (5.1 inches)	86%	very high
April Weather	16°C (61°F)	130 mm (5.1 inches)	82%	extreme
May Weather	21°C (70°F)	132 mm (5.2 inches)	85%	extreme
June Weather	24°C (75°F)	112 mm (4.4 inches)	85%	extreme
July Weather	26°C (79°F)	102 mm (4.0 inches)	83%	extreme
August Weather	25°C (78°F)	135 mm (5.3 inches)	76%	very high
September Weather	23°C (74°F)	125 mm (4.9 inches)	76%	very high
October Weather	18°C (65°F)	168 mm (6.6 inches)	80%	very high
November Weather	11°C (52°F)	87 mm (3.4 inches)	88%	high
December Weather	8°C (47°F)	146 mm (5.7 inches)	88%	moderate