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April Weather in Phoenix, United States

Last updated: June 24, 2025

In April, the average temperature in Phoenix, United States hovers around 7°C (46°F). While temperatures can drop as low as -4°C (25°F), they can also reach a pleasant 26°C (79°F) on warmer days. Expect 122 mm (4.8 in) of precipitation spread across 15 days, with an average humidity of 88%, contributing to a notably damp atmosphere.

April Temperature in Phoenix

In April in Phoenix, the average temperature is 7°C (46°F). Maximum temperatures can reach as high as 26°C (79°F), while minimum temperatures can drop to as low as -4°C (25°F). This makes Phoenix an ideal destination for travelers seeking a mix of mild and brisk weather during this time of year.

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

The chart illustrates April temperature patterns in Phoenix, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Phoenix, April typically has an average temperature of 7°C (46°F), with highs reaching up to 26°C (79°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec272935455766737165554032
Data source: Temperature data for Phoenix 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 Phoenix

In Phoenix in April, the precipitation amount is 122 mm (4.8 in) over a span of 15 days.

April Precipitation Trends in Phoenix

The chart displays monthly precipitation patterns in Phoenix, 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 Phoenix, April typically receives around 122 mm (4.8 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec97999112211910017512487170115114
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Phoenix

In Phoenix in April humidity is 88%. With an average temperature of 7°C (46°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and requiring you to dress in layers to stay warm and dry while exploring.

April Average Humidity in Phoenix

This chart illustrates the average monthly humidity levels in Phoenix, 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 Phoenix is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%87%88%82%79%78%76%78%84%89%86%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Phoenix

In Phoenix 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 Phoenix.

Maximum UV Index Levels in Phoenix for April

The chart shows the monthly maximum UV Index (UVI) for Phoenix 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 Phoenix typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3468910997632
Data source: Phoenix 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 Phoenix Compares to Other Months

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

This table compares monthly weather conditions in Phoenix, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)97 mm (3.8 inches)90%moderate
February Weather-2°C (29°F)98 mm (3.9 inches)90%moderate
March Weather1°C (35°F)91 mm (3.6 inches)87%high
April Weather7°C (46°F)122 mm (4.8 inches)88%very high
May Weather14°C (57°F)119 mm (4.7 inches)82%very high
June Weather19°C (67°F)100 mm (3.9 inches)79%very high
July Weather23°C (73°F)175 mm (6.9 inches)78%very high
August Weather22°C (72°F)124 mm (4.9 inches)76%very high
September Weather18°C (65°F)87 mm (3.4 inches)78%high
October Weather13°C (55°F)170 mm (6.7 inches)84%high
November Weather5°C (41°F)115 mm (4.5 inches)89%moderate
December Weather0°C (33°F)114 mm (4.5 inches)86%low

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