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June Weather in Palo Alto, United States

Last updated: June 24, 2025

The average temperature in Palo Alto, United States during June is a pleasant 21°C (69°F). However, temperatures can vary significantly, with a minimum of 7°C (44°F) and a scorching maximum of 34°C (94°F). Expect a precipitation amount of 118 mm (4.6 in) spread over 14 days, contributing to an average humidity of 73%. Enjoy the diverse climate this month offers!

June Temperature in Palo Alto

In June in Palo Alto, the average temperature is 21°C (69°F). Maximums can reach 34°C (94°F), and minimums can be as low as 7°C (44°F). It's essential to pack layers to stay comfortable throughout the day, but don't forget your sunscreen for the warmer hours!

June Weather in Palo Alto: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Palo Alto, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Palo Alto, June typically has an average temperature of 21°C (69°F), with highs reaching up to 34°C (94°F) and lows dropping to around 7°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec303339506169757266564135
Data source: Temperature data for Palo Alto 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.

June Precipitation in Palo Alto

In Palo Alto in June, the precipitation amount is 118 mm (4.6 in) over a span of 14 days.

June Precipitation Trends in Palo Alto

The chart displays monthly precipitation patterns in Palo Alto, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Palo Alto, June typically receives around 118 mm (4.6 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec74106961111331181631551171179993
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Palo Alto

In Palo Alto in June, humidity is 73%. With an average temperature of 21°C (69°F), this humidity feels like a warm, sticky embrace, making outdoor activities somewhat stifling and travel a bit more challenging, as the air is dense and can leave you feeling fatigued more quickly.

June Average Humidity in Palo Alto

This chart illustrates the average monthly humidity levels in Palo Alto, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Palo Alto is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%85%83%75%74%65%62%66%79%87%85%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Palo Alto

In Palo Alto in June, 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 Palo Alto.

Maximum UV Index Levels in Palo Alto for June

The chart shows the monthly maximum UV Index (UVI) for Palo Alto in June, 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 June, the maximum UV index in Palo Alto typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Palo Alto June 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 June Weather in Palo Alto Compares to Other Months

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

This table compares monthly weather conditions in Palo Alto, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)74 mm (2.9 inches)87%moderate
February Weather1°C (33°F)106 mm (4.2 inches)85%moderate
March Weather4°C (39°F)96 mm (3.8 inches)85%high
April Weather10°C (50°F)111 mm (4.4 inches)83%very high
May Weather16°C (61°F)133 mm (5.2 inches)75%very high
June Weather21°C (69°F)118 mm (4.6 inches)73%very high
July Weather24°C (75°F)163 mm (6.4 inches)65%very high
August Weather22°C (73°F)155 mm (6.1 inches)62%very high
September Weather19°C (67°F)117 mm (4.6 inches)66%very high
October Weather13°C (57°F)117 mm (4.6 inches)79%high
November Weather5°C (42°F)99 mm (3.9 inches)87%moderate
December Weather1°C (35°F)93 mm (3.7 inches)85%low

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