April Weather in Walnut Creek, United States

Last updated: June 24, 2025

In Walnut Creek, United States, the average temperature in April hovers around 19°C (67°F), providing a pleasant climate. Temperatures can fluctuate, with a minimum of 3°C (38°F) and a maximum reaching 35°C (95°F). Expect a touch of moisture, as precipitation averages at 8 mm (0.3 in) over approximately 1 day, coupled with a comfortable average humidity of 58%.

April Temperature in Walnut Creek

In April in Walnut Creek, the average temperature is 19°C (67°F). Maximums can reach 35°C (95°F), while minimums can dip as low as 3°C (38°F). This variability makes Walnut Creek a great destination for travelers seeking a mix of warm and cooler weather experiences.

April Weather in Walnut Creek: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Walnut Creek, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Walnut Creek, April typically has an average temperature of 19°C (67°F), with highs reaching up to 35°C (95°F) and lows dropping to around 3°C (38°F).

Data source: Temperature data for Walnut Creek generated using information from the Copernicus Climate Change Service.

April Precipitation in Walnut Creek

In Walnut Creek in April, the precipitation amount is 8 mm (0.3 in) over the course of 1 day.

April Precipitation Trends in Walnut Creek

The chart displays monthly precipitation patterns in Walnut Creek, 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 Walnut Creek, April typically receives around 8 mm (0.3 inches) of precipitation spread over approximately 1 days.

Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

April Humidity in Walnut Creek

In Walnut Creek in April, humidity is 58%. With an average temperature of 19°C (67°F), this humidity feels like a comfortable embrace, making it ideal for leisurely strolls and outdoor adventures, though you might want to stay hydrated as you explore.

April Average Humidity in Walnut Creek

This chart illustrates the average monthly humidity levels in Walnut Creek, 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 Walnut Creek is approximately 58%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Walnut Creek

In Walnut Creek 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 Walnut Creek.

Maximum UV Index Levels in Walnut Creek for April

The chart shows the monthly maximum UV Index (UVI) for Walnut Creek 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 Walnut Creek typically reaches 10, which falls under the very high exposure category.

Data source: Walnut Creek 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 Walnut Creek Compares to Other Months

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

This table compares monthly weather conditions in Walnut Creek, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (47°F)	28 mm (1.1 inches)	77%	moderate
February Weather	10°C (49°F)	29 mm (1.1 inches)	80%	high
March Weather	13°C (56°F)	36 mm (1.4 inches)	68%	very high
April Weather	19°C (67°F)	8 mm (0.3 inches)	58%	very high
May Weather	23°C (74°F)	7 mm (0.3 inches)	45%	extreme
June Weather	30°C (86°F)	1 mm (0.1 inches)	31%	extreme
July Weather	32°C (89°F)	32 mm (1.3 inches)	27%	extreme
August Weather	32°C (89°F)	14 mm (0.6 inches)	30%	extreme
September Weather	27°C (81°F)	15 mm (0.6 inches)	48%	very high
October Weather	19°C (67°F)	20 mm (0.8 inches)	59%	high
November Weather	14°C (57°F)	26 mm (1.0 inches)	70%	moderate
December Weather	8°C (47°F)	21 mm (0.8 inches)	77%	moderate