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April Weather in Tamalpais Valley, United States

Last updated: June 24, 2025

In April, the average temperature in Tamalpais Valley, United States hovers around 14°C (57°F). Temperatures can range from a cool 4°C (40°F) to a warm 28°C (83°F), offering a pleasant variety. Expect total precipitation of 35 mm (1.4 in) spread over approximately 5 days, while the air maintains an average humidity of 79%.

April Temperature in Tamalpais Valley

In April in Tamalpais Valley, the average temperature is 14°C (57°F). Maximums can reach 28°C (83°F), while minimums can dip as low as 4°C (40°F). This diverse temperature range makes Tamalpais Valley an ideal destination for travelers looking to experience both mild and warm weather during their visit.

April Weather in Tamalpais Valley: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Tamalpais Valley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tamalpais Valley, April typically has an average temperature of 14°C (57°F), with highs reaching up to 28°C (83°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec515253575963636465625551
Data source: Temperature data for Tamalpais Valley 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 Tamalpais Valley

In Tamalpais Valley in April, the precipitation amount is 35 mm (1.4 in) over a span of 5 days.

April Precipitation Trends in Tamalpais Valley

The chart displays monthly precipitation patterns in Tamalpais Valley, 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 Tamalpais Valley, April typically receives around 35 mm (1.4 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec1111168035202212304898
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Tamalpais Valley

In Tamalpais Valley in April humidity is 79%. With an average temperature of 14°C (57°F), this humidity feels like a warm, sticky embrace that can make even short strolls feel exhausting, creating a sense of heaviness in the air that might dampen your adventurous spirit while exploring.

April Average Humidity in Tamalpais Valley

This chart illustrates the average monthly humidity levels in Tamalpais Valley, 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 Tamalpais Valley is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%82%82%79%83%84%87%87%86%80%79%79%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Tamalpais Valley

In Tamalpais Valley 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 Tamalpais Valley.

Maximum UV Index Levels in Tamalpais Valley for April

The chart shows the monthly maximum UV Index (UVI) for Tamalpais Valley 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 Tamalpais Valley typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3589101111109643
Data source: Tamalpais Valley 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 Tamalpais Valley Compares to Other Months

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

This table compares monthly weather conditions in Tamalpais Valley, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (51°F)111 mm (4.4 inches)85%moderate
February Weather11°C (52°F)116 mm (4.6 inches)82%moderate
March Weather12°C (54°F)80 mm (3.1 inches)82%very high
April Weather14°C (57°F)35 mm (1.4 inches)79%very high
May Weather15°C (60°F)20 mm (0.8 inches)83%very high
June Weather17°C (63°F)2 mm (0.1 inches)84%extreme
July Weather17°C (63°F)2 mm (0.1 inches)87%extreme
August Weather18°C (64°F)1 mm (0.1 inches)87%very high
September Weather18°C (65°F)2 mm (0.1 inches)86%very high
October Weather16°C (62°F)30 mm (1.2 inches)80%high
November Weather13°C (55°F)48 mm (1.9 inches)79%moderate
December Weather10°C (51°F)98 mm (3.9 inches)79%moderate

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