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April Weather in Mountain View, United States

Last updated: June 24, 2025

In April, the average temperature in Mountain View, United States hovers around 22°C (73°F). Expect a minimum of 17°C (64°F) and a maximum of 28°C (82°F). With an average humidity of 80% and 117 mm (4.6 in) of precipitation spread over 23 days, be prepared for a mix of warmth and moisture during your stay.

April Temperature in Mountain View

In April in Mountain View, the average temperature is 22°C (73°F), with maximums reaching up to 28°C (82°F) and minimums dropping to as low as 17°C (64°F). This mild climate makes it an ideal time for travelers to explore the area comfortably.

April Weather in Mountain View: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Mountain View, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mountain View, April typically has an average temperature of 22°C (73°F), with highs reaching up to 28°C (82°F) and lows dropping to around 17°C (64°F).
JanFebMarAprMayJunJulAugSepOctNovDec717071727375767677757472
Data source: Temperature data for Mountain View 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 Mountain View

In Mountain View in April, the total precipitation amount is 117 mm (4.6 in) that falls over the course of 23 days.

April Precipitation Trends in Mountain View

The chart displays monthly precipitation patterns in Mountain View, 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 Mountain View, April typically receives around 117 mm (4.6 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec118209154117127909718893137108180
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Mountain View

In Mountain View in April, humidity is 80%. With an average temperature of 22°C (73°F), this humidity feels like a warm blanket enveloping you, making travel feel a bit sluggish and sticky, yet the vibrant atmosphere invites exploration at a slower pace.

April Average Humidity in Mountain View

This chart illustrates the average monthly humidity levels in Mountain View, 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 Mountain View is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%79%77%80%80%82%83%84%82%83%83%81%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Mountain View

In Mountain View in April, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Mountain View.

Maximum UV Index Levels in Mountain View for April

The chart shows the monthly maximum UV Index (UVI) for Mountain View 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 Mountain View typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec811121313131414131298
Data source: Mountain View 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 Mountain View Compares to Other Months

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

This table compares monthly weather conditions in Mountain View, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (71°F)118 mm (4.7 inches)79%very high
February Weather21°C (71°F)209 mm (8.2 inches)79%extreme
March Weather22°C (71°F)154 mm (6.0 inches)77%extreme
April Weather22°C (73°F)117 mm (4.6 inches)80%extreme
May Weather23°C (74°F)127 mm (5.0 inches)80%extreme
June Weather24°C (75°F)90 mm (3.5 inches)82%extreme
July Weather24°C (76°F)97 mm (3.8 inches)83%extreme
August Weather25°C (77°F)188 mm (7.4 inches)84%extreme
September Weather25°C (77°F)93 mm (3.7 inches)82%extreme
October Weather24°C (76°F)137 mm (5.4 inches)83%extreme
November Weather23°C (74°F)108 mm (4.2 inches)83%very high
December Weather22°C (72°F)180 mm (7.1 inches)81%very high

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