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June Weather in San Ramon, United States

Last updated: June 24, 2025

In June, the average temperature in San Ramon, United States is a pleasant 19°C (66°F). You'll experience minimums as cool as 8°C (47°F) and can reach maximums soaring to 38°C (101°F). With a meager precipitation of only 2 mm (0.1 in) over 0 days, the weather remains typically dry and comfortable. Enjoy the mild climate with an average humidity of 64%!

June Temperature in San Ramon

In June in San Ramon, the average temperature is 19°C (66°F). The maximum can reach 38°C (101°F), while the minimum can dip as low as 8°C (47°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack accordingly for both warm days and cool nights.

June Weather in San Ramon: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in San Ramon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Ramon, June typically has an average temperature of 19°C (66°F), with highs reaching up to 38°C (101°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec505254576166686867635550
Data source: Temperature data for San Ramon 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 San Ramon

In San Ramon in June, the precipitation amount is 2 mm (0.1 in) during a span of 0 days.

June Precipitation Trends in San Ramon

The chart displays monthly precipitation patterns in San Ramon, 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 San Ramon, June typically receives around 2 mm (0.1 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec94897730172002223876
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in San Ramon

In San Ramon in June humidity is 64%. With an average temperature of 19°C (66°F), this humidity feels like a warm embrace, making travel both refreshing and slightly drizzly, ideal for leisurely exploration but a reminder to stay hydrated.

June Average Humidity in San Ramon

This chart illustrates the average monthly humidity levels in San Ramon, 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 San Ramon is approximately 64%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%84%82%78%71%64%59%54%55%62%78%80%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in San Ramon

In San Ramon in June, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in San Ramon.

Maximum UV Index Levels in San Ramon for June

The chart shows the monthly maximum UV Index (UVI) for San Ramon 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 San Ramon typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3589101111109753
Data source: San Ramon 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 San Ramon Compares to Other Months

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

This table compares monthly weather conditions in San Ramon, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (50°F)94 mm (3.7 inches)82%moderate
February Weather11°C (52°F)89 mm (3.5 inches)84%moderate
March Weather12°C (54°F)77 mm (3.0 inches)82%very high
April Weather14°C (58°F)30 mm (1.2 inches)78%very high
May Weather16°C (61°F)17 mm (0.7 inches)71%very high
June Weather19°C (66°F)2 mm (0.1 inches)64%extreme
July Weather20°C (68°F)0 mm (0.0 inches)58%extreme
August Weather20°C (69°F)0 mm (0.0 inches)54%very high
September Weather20°C (68°F)2 mm (0.1 inches)55%very high
October Weather17°C (63°F)22 mm (0.9 inches)62%high
November Weather13°C (55°F)38 mm (1.5 inches)78%moderate
December Weather10°C (50°F)76 mm (3.0 inches)80%moderate

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