April Weather in Harbor, United States

Last updated: June 24, 2025

In April, the average temperature in Harbor, United States hovers around 11°C (52°F), with the minimum dipping to 4°C (40°F) and a maximum reaching 21°C (70°F). Expect a precipitation total of 165 mm (6.5 in) over approximately 10 days, contributing to a notably high average humidity of 82%.

April Temperature in Harbor

In April in Harbor, the average temperature is 11°C (52°F). The maximum can reach 21°C (70°F), and the minimum can be as low as 4°C (40°F). This mild climate makes it an ideal time for travelers to explore the local attractions and enjoy outdoor activities.

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

The chart illustrates April temperature patterns in Harbor, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harbor, April typically has an average temperature of 11°C (52°F), with highs reaching up to 21°C (70°F) and lows dropping to around 4°C (40°F).

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

April Precipitation in Harbor

In Harbor in April, the precipitation amount is 165 mm (6.5 in), which occurs over the course of 10 days.

April Precipitation Trends in Harbor

The chart displays monthly precipitation patterns in Harbor, 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 Harbor, April typically receives around 165 mm (6.5 inches) of precipitation spread over approximately 10 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 Harbor

In Harbor in April, humidity is 82%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that seeps into your bones, making it essential to dress in layers and stay prepared for the moisture-laden air as you explore your surroundings.

April Average Humidity in Harbor

This chart illustrates the average monthly humidity levels in Harbor, 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 Harbor 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 Harbor

In Harbor in April, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Harbor.

Maximum UV Index Levels in Harbor for April

The chart shows the monthly maximum UV Index (UVI) for Harbor 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 Harbor typically reaches 8, which falls under the very high exposure category.

Data source: Harbor 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 Harbor Compares to Other Months

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

This table compares monthly weather conditions in Harbor, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (49°F)	301 mm (11.8 inches)	86%	moderate
February Weather	9°C (48°F)	270 mm (10.6 inches)	85%	moderate
March Weather	9°C (48°F)	207 mm (8.1 inches)	85%	high
April Weather	11°C (52°F)	165 mm (6.5 inches)	82%	very high
May Weather	13°C (55°F)	68 mm (2.7 inches)	81%	very high
June Weather	16°C (61°F)	36 mm (1.4 inches)	79%	very high
July Weather	18°C (65°F)	1 mm (0.0 inches)	70%	very high
August Weather	19°C (66°F)	4 mm (0.2 inches)	60%	very high
September Weather	17°C (63°F)	59 mm (2.3 inches)	62%	very high
October Weather	14°C (58°F)	93 mm (3.7 inches)	72%	high
November Weather	11°C (53°F)	213 mm (8.4 inches)	87%	moderate
December Weather	9°C (49°F)	237 mm (9.3 inches)	86%	low