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April Weather in Holtville, United States

Last updated: June 24, 2025

In April, the average temperature in Holtville, United States is a pleasant 18°C (65°F). Expect a range from a brisk 2°C (36°F) to a warm 31°C (88°F). With 137 mm (5.4 in) of precipitation over approximately 8 days, don't forget your umbrella! The month is characterized by a high average humidity of 82%, adding a touch of warmth to the air.

April Temperature in Holtville

In April in Holtville, the average temperature is 18°C (65°F). The maximum can reach 31°C (88°F), and the minimum can be as low as 2°C (36°F). Be prepared for a wide range of temperatures, making it a great month for both warm-weather activities and cooler evenings.

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

The chart illustrates April temperature patterns in Holtville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Holtville, April typically has an average temperature of 18°C (65°F), with highs reaching up to 31°C (88°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec485459647378818077695551
Data source: Temperature data for Holtville 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 Holtville

In Holtville in April, the precipitation amount is 137 mm (5.4 in) spread over 8 days.

April Precipitation Trends in Holtville

The chart displays monthly precipitation patterns in Holtville, 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 Holtville, April typically receives around 137 mm (5.4 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec1221471291371281461161119311982148
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Holtville

In Holtville in April, humidity is 82%. With an average temperature of 18°C (65°F), this humidity feels like a warm, sticky embrace that can quickly leave travelers feeling fatigued and in need of frequent breaks to stay refreshed and hydrated.

April Average Humidity in Holtville

This chart illustrates the average monthly humidity levels in Holtville, 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 Holtville is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%82%82%81%77%77%72%73%73%85%88%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Holtville

In Holtville in April, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Holtville.

Maximum UV Index Levels in Holtville for April

The chart shows the monthly maximum UV Index (UVI) for Holtville 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 Holtville typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111119864
Data source: Holtville 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 Holtville Compares to Other Months

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

This table compares monthly weather conditions in Holtville, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)122 mm (4.8 inches)85%moderate
February Weather12°C (54°F)147 mm (5.8 inches)84%high
March Weather15°C (60°F)129 mm (5.1 inches)82%very high
April Weather18°C (65°F)137 mm (5.4 inches)82%very high
May Weather23°C (73°F)128 mm (5.0 inches)81%extreme
June Weather26°C (78°F)146 mm (5.7 inches)77%extreme
July Weather27°C (81°F)116 mm (4.6 inches)77%extreme
August Weather27°C (81°F)111 mm (4.4 inches)72%extreme
September Weather25°C (78°F)93 mm (3.6 inches)73%very high
October Weather20°C (69°F)119 mm (4.7 inches)73%very high
November Weather13°C (55°F)82 mm (3.2 inches)85%high
December Weather11°C (51°F)148 mm (5.8 inches)88%moderate

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