April Weather in Alto, United States

Last updated: June 24, 2025

In April, the average temperature in Alto, United States hovers around 14°C (57°F). Temperatures can range from a cool 4°C (40°F) to a warm 28°C (83°F), offering a pleasant variety. Expect total precipitation of 35 mm (1.4 in) spread over approximately 5 days, while the air maintains an average humidity of 79%.

April Temperature in Alto

In April in Alto, the average temperature is 14°C (57°F). Maximums can reach 28°C (83°F), while minimums can dip as low as 4°C (40°F). This diverse temperature range makes Alto an ideal destination for travelers looking to experience both mild and warm weather during their visit.

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 14°C (57°F), with highs reaching up to 28°C (83°F) and lows dropping to around 4°C (40°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 35 mm (1.4 in) over a span of 5 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 35 mm (1.4 inches) of precipitation spread over approximately 5 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 79%. With an average temperature of 14°C (57°F), this humidity feels like a warm, sticky embrace that can make even short strolls feel exhausting, creating a sense of heaviness in the air that might dampen your adventurous spirit while exploring.

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 79%, 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 is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, 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 9, which falls under the very high 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	10°C (51°F)	111 mm (4.4 inches)	85%	moderate
February Weather	11°C (52°F)	116 mm (4.6 inches)	82%	moderate
March Weather	12°C (54°F)	80 mm (3.1 inches)	82%	very high
April Weather	14°C (57°F)	35 mm (1.4 inches)	79%	very high
May Weather	15°C (60°F)	20 mm (0.8 inches)	83%	very high
June Weather	17°C (63°F)	2 mm (0.1 inches)	84%	extreme
July Weather	17°C (63°F)	2 mm (0.1 inches)	87%	extreme
August Weather	18°C (64°F)	1 mm (0.1 inches)	87%	very high
September Weather	18°C (65°F)	2 mm (0.1 inches)	86%	very high
October Weather	16°C (62°F)	30 mm (1.2 inches)	80%	high
November Weather	13°C (55°F)	48 mm (1.9 inches)	79%	moderate
December Weather	10°C (51°F)	98 mm (3.9 inches)	79%	moderate