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April Weather in Irvine, United States

Last updated: June 24, 2025

In Irvine, United States, the average temperature in April hovers around 13°C (57°F). However, be prepared for a temperature range that can dip to a chilly -3°C (26°F) and soar up to a warm 31°C (88°F). Expect 134 mm (5.3 in) of precipitation over approximately 12 days, contributing to an average humidity of 84%. Whether it's a brisk morning or a sunny afternoon, pack accordingly!

April Temperature in Irvine

In April in Irvine, the average temperature is 13°C (57°F), with maximums reaching up to 31°C (88°F) and minimums dropping as low as -3°C (26°F). Be prepared for a wide range of weather conditions during your travels!

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

The chart illustrates April temperature patterns in Irvine, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Irvine, April typically has an average temperature of 13°C (57°F), with highs reaching up to 31°C (88°F) and lows dropping to around -3°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec374248566773787671614642
Data source: Temperature data for Irvine 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 Irvine

In Irvine in April, the precipitation amount is 134 mm (5.3 in) over a period of 12 days.

April Precipitation Trends in Irvine

The chart displays monthly precipitation patterns in Irvine, 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 Irvine, April typically receives around 134 mm (5.3 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec9415312513412417110111511111381127
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Irvine

In Irvine in April, humidity is 84%. With an average temperature of 13°C (57°F), this humidity feels like a damp blanket enveloping you, making travel somewhat uncomfortable and prompting the need for light, breathable clothing to cope with the muggy conditions.

April Average Humidity in Irvine

This chart illustrates the average monthly humidity levels in Irvine, 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 Irvine is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%87%84%84%83%79%66%67%76%89%88%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Irvine

In Irvine 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 Irvine.

Maximum UV Index Levels in Irvine for April

The chart shows the monthly maximum UV Index (UVI) for Irvine 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 Irvine typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3679101111109753
Data source: Irvine 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 Irvine Compares to Other Months

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

This table compares monthly weather conditions in Irvine, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)94 mm (3.7 inches)88%moderate
February Weather5°C (42°F)153 mm (6.0 inches)88%high
March Weather9°C (49°F)125 mm (4.9 inches)87%high
April Weather13°C (57°F)134 mm (5.3 inches)84%very high
May Weather19°C (67°F)123 mm (4.9 inches)84%very high
June Weather23°C (73°F)171 mm (6.7 inches)83%extreme
July Weather25°C (78°F)100 mm (4.0 inches)79%extreme
August Weather24°C (76°F)115 mm (4.5 inches)66%very high
September Weather22°C (71°F)111 mm (4.4 inches)67%very high
October Weather16°C (61°F)113 mm (4.4 inches)76%high
November Weather8°C (46°F)80 mm (3.2 inches)89%moderate
December Weather5°C (42°F)127 mm (5.0 inches)88%moderate

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