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April Weather in Campbell, United States

Last updated: June 24, 2025

In Campbell, United States, the average temperature in April hovers around 7°C (46°F), with possible extremes ranging from a brisk -6°C (22°F) to a warm 27°C (81°F). During this month, expect about 108 mm (4.3 in) of precipitation spread over 16 days, contributing to an average humidity level of 88%. Whether you're bracing for chill or enjoying the warmth, remember to prepare for the occasional rain!

April Temperature in Campbell

In April in Campbell, the average temperature is 7°C (46°F). The maximum can reach 27°C (81°F) and the minimum can be as low as -6°C (22°F). It's a great time to pack layers and prepare for a mix of mild and chilly weather while exploring.

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

The chart illustrates April temperature patterns in Campbell, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Campbell, April typically has an average temperature of 7°C (46°F), with highs reaching up to 27°C (81°F) and lows dropping to around -6°C (22°F).
JanFebMarAprMayJunJulAugSepOctNovDec252734455766716963523730
Data source: Temperature data for Campbell 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 Campbell

In Campbell in April, the total precipitation amount is 108 mm (4.3 in), which falls over the course of 16 days.

April Precipitation Trends in Campbell

The chart displays monthly precipitation patterns in Campbell, 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 Campbell, April typically receives around 108 mm (4.3 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec6782761081159513378841287582
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Campbell

In Campbell 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 Campbell

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

In Campbell 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 Campbell.

Maximum UV Index Levels in Campbell for April

The chart shows the monthly maximum UV Index (UVI) for Campbell 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 Campbell typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346810101098642
Data source: Campbell 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 Campbell Compares to Other Months

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

This table compares monthly weather conditions in Campbell, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)67 mm (2.6 inches)90%moderate
February Weather-3°C (28°F)82 mm (3.2 inches)90%moderate
March Weather1°C (35°F)75 mm (3.0 inches)87%high
April Weather7°C (46°F)108 mm (4.3 inches)88%very high
May Weather14°C (58°F)115 mm (4.5 inches)82%very high
June Weather19°C (66°F)95 mm (3.7 inches)79%very high
July Weather22°C (71°F)133 mm (5.2 inches)78%very high
August Weather21°C (69°F)78 mm (3.1 inches)76%very high
September Weather17°C (63°F)84 mm (3.3 inches)78%very high
October Weather11°C (53°F)128 mm (5.0 inches)84%high
November Weather3°C (38°F)75 mm (3.0 inches)89%moderate
December Weather-1°C (31°F)82 mm (3.2 inches)86%low

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