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April Weather in Harlem, United States

Last updated: June 24, 2025

In April, the average temperature in Harlem, United States hovers around 25°C (77°F). Expect a minimum of 12°C (54°F) and a maximum of 34°C (94°F), offering a lovely range for outdoor activities. However, be prepared for some rain, as the area receives approximately 57 mm (2.2 in) of precipitation over 6 days. With an average humidity of 68%, the weather adds a touch of warmth to this vibrant destination.

April Temperature in Harlem

In April in Harlem, the average temperature is 25°C (77°F). The maximum can reach 34°C (94°F) and the minimum can be as low as 12°C (54°F). This mild and varied climate makes Harlem an ideal destination for travelers seeking both warmth and cool relief.

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

The chart illustrates April temperature patterns in Harlem, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harlem, April typically has an average temperature of 25°C (77°F), with highs reaching up to 34°C (94°F) and lows dropping to around 12°C (54°F).
JanFebMarAprMayJunJulAugSepOctNovDec667172777982838382807369
Data source: Temperature data for Harlem generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Harlem

In Harlem in April, the precipitation amount is 57 mm (2.2 in) over a span of 6 days.

April Precipitation Trends in Harlem

The chart displays monthly precipitation patterns in Harlem, 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 Harlem, April typically receives around 57 mm (2.2 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec333621571462442112622001194335
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Harlem

In Harlem in April, humidity is 68%. With an average temperature of 25°C (77°F), this humidity feels like a warm embrace that can quickly become stifling for traveling, making outdoor activities feel more strenuous and the air thick and heavy.

April Average Humidity in Harlem

This chart illustrates the average monthly humidity levels in Harlem, 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 Harlem is approximately 68%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%80%75%68%65%73%77%80%83%83%83%84%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Harlem

In Harlem in April, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Harlem.

Maximum UV Index Levels in Harlem for April

The chart shows the monthly maximum UV Index (UVI) for Harlem 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 Harlem typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec69101212121212111075
Data source: Harlem 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 Harlem Compares to Other Months

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

This table compares monthly weather conditions in Harlem, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather19°C (66°F)33 mm (1.3 inches)83%high
February Weather22°C (71°F)36 mm (1.4 inches)80%very high
March Weather22°C (72°F)21 mm (0.8 inches)75%very high
April Weather25°C (77°F)57 mm (2.2 inches)68%extreme
May Weather26°C (80°F)146 mm (5.8 inches)65%extreme
June Weather28°C (82°F)243 mm (9.6 inches)73%extreme
July Weather28°C (83°F)211 mm (8.3 inches)77%extreme
August Weather28°C (83°F)262 mm (10.3 inches)80%extreme
September Weather28°C (83°F)200 mm (7.9 inches)83%extreme
October Weather27°C (80°F)119 mm (4.7 inches)83%very high
November Weather23°C (74°F)43 mm (1.7 inches)83%high
December Weather20°C (69°F)35 mm (1.4 inches)84%moderate

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