Last updated: February 24, 2025
June in San Francisco brings a delightful blend of warmth and freshness, with temperatures ranging from a maximum of 31°C (88°F) to a refreshing average of 15°C (60°F). Residents and visitors can bask in the abundance of sunshine, as the city experiences zero precipitation days and a mere 3 mm (0.1 in) of rainfall throughout the month. The air is notably humid, with levels reaching 84%, adding a tropical feel to this iconic coastal city. Whether wandering along the vibrant streets or enjoying the stunning waterfront, June offers a perfect setting for outdoor adventures and memorable moments.
In June, San Francisco begins to embrace the warmth of summer, with temperatures showing a notable rise compared to the previous months. The minimum temperature settles at 10°C (51°F), offering a gentle start to the day, while the average creeps up to 15°C (60°F), creating a comfortable atmosphere for both locals and visitors. The real treat comes during the day when highs can reach an impressive 31°C (88°F), making this one of the warmest months of the year. This temperature trend reflects a transition from spring's coolness to the vibrant heat of summer, inviting people to enjoy outdoor activities and the breathtaking scenery that San Francisco has to offer. Keep in mind, however, that the famed coastal fog can still sweep in, keeping things interesting and providing a refreshing contrast.
In June, San Francisco experiences a notable shift in its precipitation patterns, seeing a dramatic decrease with just 3 mm (0.1 in) of rainfall, which marks the end of the wet season. Interestingly, this month stands out as one of the driest, consistently recording 0 days of precipitation, a trend that remains unchanged as July and August follow suit. This stark contrast is evident when compared to the preceding months, where rainfall peaked with 106 mm in January. The transition to dryer conditions signifies the onset of summer, highlighting San Francisco's characteristic seasonal variability in weather, where brief rainy spells give way to extended sunshine.
June in San Francisco sees a notable humidity level of 84%, which sets the stage for the city's summer season. This slight rise from May's 83% hints at the approaching warmth, as the city transitions into the humid months of July and August, both of which peak at 87% humidity. Interestingly, while the summer months feature elevated moisture, June maintains a relatively pleasant balance compared to the rain-soaked beginnings of the year; humidity levels are high in January and February at 85% and 82%, respectively, before gradually declining to a more comfortable 79% by April. Overall, June provides a glimpse of the bay's characteristic fog, contributing to San Francisco's unique coastal climate while signaling the shift toward the more humid summer ahead.
As summer approaches, June in San Francisco marks a peak in the UV Index, reaching an extreme level of 11—the highest of the year. This dramatic increase from the moderate levels of winter (UV Index 3 in January) to the very high readings in spring reflects a significant trend towards intensified sun exposure. With a burn time of just 10 minutes, residents and visitors alike should exercise caution and protect their skin. As summer progresses, July maintains this extreme level, emphasizing the ongoing need for sun safety. To stay informed and plan accordingly, check out this comprehensive guide on the San Francisco UV Index.
UV Risk Categories
June marks a dazzling peak in sunshine hours for San Francisco, boasting 355 hours of radiant sunlight, a delightful culmination of the gradual increase that starts in January. Beginning the year with just 151 hours, the Golden City steadily invites more light, with each subsequent month showcasing a rise—particularly noticeable from the mild 263 hours in March to the vibrant 341 hours in May. As summer settles in, June's sunny disposition not only enhances outdoor activities but also lays the groundwork for the slightly diminished luminescence of July and August. This pattern of ebbing sunlight emphasizes the city's unique climate, where the warm embrace of summer can be fleeting yet beautifully pronounced. The contrast brings a sense of anticipation for the cooler months, as San Francisco transitions to more temperate weather and gradually retreats into autumn's embrace.
June in San Francisco offers a mildly optimistic chance of sunny weather, with a 51% likelihood of sunshine. While this figure represents a dip from the preceding month's 66% chance, it still showcases that the early summer sun can grace the city, despite the prevailing cool marine layer. Interestingly, June's sunshine potential aligns with both September and October's rates, suggesting that while summer may not always deliver the expected warmth, there are moments when rays peek through the fog. As the year unfolds, San Francisco experiences its highest likelihood of sunny days in the late spring, making June a pleasantly unpredictable month for sunseekers in the City by the Bay.
As June arrives in San Francisco, the city basks in 14 hours of daylight, maintaining the extended sunshine experienced in May. This trend of increasing daylight begins in January with a modest 9 hours and gradually rises, peaking at 14 hours in both June and July. Following this peak, daylight begins to wane, with hours gradually decreasing to 11 hours by October and reverting to 9 hours by December. The steady increase through spring into the early summer months captures the city's vibrant energy, making June a perfect time for outdoor activities and enjoying the stunning vistas that San Francisco has to offer.
In June, the average wind speed in San Francisco settles at a brisk 4.7 m/s (10 mph), marking a slight dip from May's gusty 5.4 m/s (12 mph). This mid-year transition reflects a trend where winds in the spring months tend to escalate, peaking in May, while summer welcomes a more mellow breeze. As the city gears up for the peak tourist season, June's winds remain perfectly refreshing, creating a pleasant backdrop for outdoor activities. Following this month, the winds gradually slow down into the summer, dropping to 4.0 m/s (9 mph) in July. Overall, the evolution of wind speeds reveals San Francisco's unique climate, where mild breezes add to the city’s charm.
The weather in San Francisco changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of June's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in San Francisco and find detailed weather information for every month.
June and January present contrasting weather patterns in terms of temperature and precipitation. In June, temperatures range from a minimum of 10°C (51°F) to a maximum of 31°C (88°F), with an average of 15°C (60°F) and virtually no rainfall, resulting in a dry atmosphere with 84% humidity. In contrast, January has milder temperatures, ranging from a minimum of 3°C (38°F) to a maximum of 21°C (70°F), with an average of 11°C (52°F) along with significant precipitation totaling 106 mm (4.2 in) over about 9 days, while maintaining a similar humidity level of 85%. This stark difference highlights June as a warmer and drier month compared to the cooler, wetter conditions typical of January. For more details, check out San Francisco weather in January.
When comparing the weather in June and February, significant differences emerge. June boasts a much warmer climate, with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 31°C (88°F) and minimal precipitation of just 3 mm (0.1 in) over no rainy days. In contrast, February experiences cooler temperatures, with a minimum of 4°C (39°F) and a maximum of 20°C (69°F), along with substantial precipitation of 109 mm (4.3 in) spread over 9 rainy days. Both months have similar humidity levels, with June at 84% and February at 82%. For more detailed insights about February weather, check out San Francisco weather in February.
June and March present distinctly different weather patterns. June typically boasts warmer temperatures, with a minimum of 10°C (51°F) and a maximum reaching up to 31°C (88°F), while March offers cooler conditions, highlighted by a minimum of 5°C (42°F) and a maximum of 20°C (69°F). Additionally, June enjoys much less precipitation, averaging only 3 mm (0.1 in) across zero rain days, in stark contrast to March, which sees significantly higher precipitation at 78 mm (3.1 in) over approximately ten days. Humidity levels remain similar, with June at 84% and March slightly lower at 82%. For more details, you can explore San Francisco weather in March.
When comparing the weather in June to that of April, June is noticeably warmer, with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 31°C (88°F), and an average of 15°C (60°F). In contrast, April features slightly cooler temperatures, with a minimum of 7°C (44°F), an average of 13°C (55°F), and a maximum of 28°C (82°F). Furthermore, June experiences significantly less precipitation, averaging only 3 mm (0.1 in) with no rain days, while April sees more rain, totaling 35 mm (1.4 in) across five rainy days. Humidity levels are higher in June at 84%, compared to April’s 79%. For a more detailed look at April's weather, visit San Francisco weather in April.
When comparing the weather conditions of May and June, it's clear that June experiences warmer temperatures, with a minimum of 10°C (51°F) and a maximum reaching 31°C (88°F), compared to May's range of 8°C (47°F) to 24°C (75°F). Additionally, June is notably drier, experiencing only 3 mm (0.1 in) of precipitation over 0 days, while May has a total of 20 mm (0.8 in) across 2 days. Humidity levels remain fairly similar, with June at 84% and May at 83%. For a more detailed look at May's weather patterns, visit San Francisco weather in May.
In comparing the weather of June and July, we see some noteworthy differences. June experiences a wider range of temperatures, with a minimum of 10°C (51°F), an average of 15°C (60°F), and a maximum of 31°C (88°F). In contrast, July has a slightly higher minimum temperature of 11°C (52°F) but a significantly lower maximum of 24°C (76°F), resulting in a generally cooler feel. Both months receive minimal precipitation, recording only 3 mm (0.1 in) without any rainy days, while humidity levels are similar, averaging 84% in June and 87% in July. For more detailed information, you can check San Francisco weather in July.
June and August showcase distinct weather patterns, though both months exhibit mild temperatures. June typically sees a wider temperature range, with minimums around 10°C (51°F), averages of 15°C (60°F), and highs reaching up to 31°C (88°F). In contrast, August features slightly warmer minimums at 11°C (53°F), average temperatures of 16°C (61°F), and cooler maximums of 27°C (81°F). Both months experience minimal precipitation, with June receiving 3 mm (0.1 in) and August just 2 mm (0.1 in), and neither month registering any rainy days. Humidity tends to be higher in August at 87%, compared to June's 84%. For a more detailed overview of August weather, you can visit San Francisco weather in August.
In June, the weather presents a mild range of temperatures, with a minimum of 10°C (51°F) and a maximum of 31°C (88°F), averaging around 15°C (60°F). The month boasts low precipitation, only 3 mm (0.1 in) over 0 days, and a humidity level of 84%. Conversely, September experiences slightly warmer temperatures, with a minimum of 11°C (51°F) and a peak of 35°C (96°F), averaging 17°C (63°F). Similar to June, September has minimal rain, with only 2 mm (0.1 in) and no rainy days, but humidity is marginally higher at 86%. For more detailed insights, check out San Francisco weather in September.
In June, the weather is typically warm and dry, with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 31°C (88°F) and an average of 15°C (60°F). The humidity is quite high at 84%, but there is minimal precipitation, with no rainy days reported. In contrast, October experiences slightly cooler temperatures, with a minimum of 9°C (48°F), an average of 16°C (60°F), and a maximum of 28°C (84°F). However, October is noticeably wetter, with a total precipitation of 30 mm (1.2 in) over two rainy days, coupled with a slight decrease in humidity to 80%. For more details on October weather, you can refer to San Francisco weather in October.
The weather in June and November shows notable differences in temperature and precipitation. June typically enjoys warmer temperatures, with an average of 15°C (60°F) and highs reaching up to 31°C (88°F), while November sees cooler averages, with a maximum of just 23°C (74°F). Additionally, June boasts very low precipitation, with only 3 mm recorded and no rainy days, contrasting sharply with November's 50 mm of rain over five days. Humidity levels remain relatively high in both months, with June at 84% and November at 79%. For a more detailed perspective on November's weather, you can check San Francisco weather in November.
In June, the weather is generally warm, with temperatures ranging from a mild 10°C (51°F) at night to a hot 31°C (88°F) during the day, accompanied by very little rainfall and high humidity at 84%. In contrast, December brings a cooler climate, with temperatures dropping to a minimum of 4°C (40°F) and a maximum of 20°C (69°F). This month experiences significantly higher precipitation, totaling 95 mm (3.7 in) over about nine days, along with a humidity level slightly lower at 79%. For more detailed information on the weather in December, you can visit San Francisco weather in December.
As June unfolds in San Francisco, the weather takes on a distinctive character, offering a delightful contrast to the often cooler and foggier months preceding it. With temperatures rising to a pleasant warmth, visitors can expect more sunny days and virtually no rainfall, allowing for outdoor adventures and picturesque cityscape views. The air is infused with increased humidity, adding a gentle tropical feel to the otherwise temperate climate. This month stands out as a celebration of warmth and sunshine, making it a prime time to experience the beauty of the city. To learn more about how June fits into the broader context of San Francisco's weather patterns, explore San Francisco Climate.