June Weather in San Luis Obispo, United States

Last updated: February 24, 2025

June in San Luis Obispo, United States, offers a delightful blend of warm temperatures and low humidity, making it an ideal time for outdoor activities. With maximum temperatures reaching a sunny 31°C (88°F) and an average of 16°C (62°F), residents and visitors can bask in pleasant summer weather. Nighttime cools down to a refreshing 11°C (51°F). Remarkably, the month sees only 1 mm (0.0 in) of precipitation over 0 days, ensuring ample sunshine and clear skies for exploration. The humidity remains at a comfortable 74%, contributing to the overall enjoyable and inviting atmosphere of this charming coastal town.

June Temperature in San Luis Obispo

In June, San Luis Obispo welcomes the sun with a noticeable rise in temperatures, showcasing a vibrant transition into summer. The month starts with a minimum of 11°C (51°F) and reaches a comfortable average of 16°C (62°F), peaking at a warm 31°C (88°F). This marks a significant increase from the cooler early months of the year, where temperatures hovered below 26°C (80°F). As spring fades, June sets the stage for the warmth of summer, making it an ideal time for outdoor activities and enjoying the region's natural beauty. With the days getting longer and sunnier, residents and visitors alike can relish in the delightful warmth that this month brings.

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

The chart illustrates June temperature patterns in San Luis Obispo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec545455575862646565635954
Data source: Temperature data for San Luis Obispo 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 Luis Obispo

In June, San Luis Obispo experiences a significant shift towards dry conditions, with precipitation levels plummeting to just 1 mm—essentially negligible compared to the robust 110 mm recorded in January. This month marks a transition into the dry summer season, as June stands out with zero rainfall days, a stark contrast to the wetter winter and spring months that feature multiple rainy days. The trend of diminishing precipitation continues into July and August, highlighting a characteristic Mediterranean climate where extended dry periods are a defining feature. Despite the minimal rainfall, the overall seasonal pattern showcases a vibrant transition that sets the stage for sun-filled summer days ahead.

June Precipitation Trends in San Luis Obispo

The chart displays monthly precipitation patterns in San Luis Obispo, 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.
JanFebMarAprMayJunJulAugSepOctNovDec110808423121111113276
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in San Luis Obispo

In June, San Luis Obispo experiences a delightful dip in humidity, with levels reaching 74%. This marks a continuation of a gradual decline from the higher humidity of 80% in January and 83% in February. The trend is particularly noticeable as the region transitions into summer, where temperatures rise and the air becomes a touch drier. With humidity levels consistently decreasing from May's 75% to June, residents and visitors alike can enjoy the pleasant warmth without the heaviness of more humid months. As summer rolls in, this declining trend sets the stage for even lower humidity in the coming months, enhancing the region's inviting coastal charm.

June Average Humidity in San Luis Obispo

This chart illustrates the average monthly humidity levels in San Luis Obispo, with June's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how June's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec80%83%80%76%75%74%75%72%70%70%74%77%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in San Luis Obispo

As summer approaches in San Luis Obispo, June marks a significant leap in ultraviolet (UV) exposure, with the UV Index soaring to 12, categorized as extreme. This drastic increase from May's 10 underscores a worrying trend of intensified sun exposure, reducing safe burn time to just 10 minutes. Following the trajectory established in the earlier months, where moderate levels gradually escalated into very high readings, June's extreme level demands heightened caution and proactive sun protection. For consistent safety and awareness throughout the year, residents and visitors should keep an eye on the evolving UV Index, especially during the sun-drenched summer months. To learn more about UV levels throughout the year, visit San Luis Obispo UV Index.

Maximum UV Index Levels in San Luis Obispo for June

The chart shows the monthly maximum UV Index (UVI) for San Luis Obispo 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.
JanFebMarAprMayJunJulAugSepOctNovDec4589101212119753
Data source: San Luis Obispo 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.

June Sunshine in San Luis Obispo

June marks a delightful peak of sunshine in San Luis Obispo, with 372 hours of sunshine illuminating the days. Following a steady increase throughout the spring, where sunshine hours blossomed from 179 in January to 368 in May, June's golden glow signals the onset of summer. This trend continues into July with an impressive 383 hours, showcasing the area's vibrant sun-kissed charm. The warmth and brightness not only enhance outdoor experiences but also set the stage for vibrant local festivals and activities, making June a perfect time to soak in the rich California sun before the gradual decline in hours that begins in August.

Monthly Sunshine Duration in San Luis Obispo: June Highlighted

The June sunshine duration represents the total number of hours San Luis Obispo experiences direct sunlight during the month of June, excluding cloudy or obstructed periods. This chart compares the sunshine duration of June with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec179h229h284h316h368h372h383h358h316h295h246h223h
Data source: San Luis Obispo June Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in San Luis Obispo During June

When it comes to sunny weather, June in San Luis Obispo shines brightly with a 73% chance of clear skies, marking it as one of the sunniest months of the year. This positive trend of increasing sunshine starts in the spring, peaking from May, which enjoys a 72% chance of sun, and continues into the summer months. This consistent upward trajectory from earlier months, such as January's 53% likelihood and April's 57%, highlights the region's gradual transition into its sun-kissed season. As the year progresses, the chances remain favorable, making June an ideal time to bask in the warmth of Californian sunshine.

Percentage of Sunny Days in June in San Luis Obispo

The chart illustrates the percentage of sunny days in San Luis Obispo throughout the year, with June highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often San Luis Obispo experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec53%69%61%57%72%73%64%71%68%68%68%50%
Data source: San Luis Obispo June chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in San Luis Obispo in June

In San Luis Obispo, the arrival of June marks a delightful transition into the heart of summer, with daylight peaking at 14 hours. This pattern reflects an extended period of light, following a gradual increase from 10 hours in January. As spring unfolds, daylight progressively lengthens, reaching its maximum in June before gradually tapering off into the late summer months. This annual rhythm highlights a consistent trend of increasing daylight, fostering vibrant outdoor activities and a lively atmosphere in the community. Enjoying June in San Luis Obispo means embracing long, sun-filled days that pave the way for memorable summer experiences.

Average Daylight Hours in San Luis Obispo for June

The chart illustrates the variation in daylight duration in San Luis Obispo throughout the year, with June highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 4m10h 55m11h 59m13h 6m14h 1m14h 28m14h 13m13h 24m12h 20m11h 14m10h 17m9h 48m
Data source: San Luis Obispo daylight hours, calculated by summing the hours between sunrise and sunset for each day.

June Winds in San Luis Obispo

In June, the wind in San Luis Obispo begins to decline from the robust breezes of earlier months, with an average speed of 2.8 m/s (6 mph). This marks a continued decrease that started in March, where winds were slightly stronger at 3.0 m/s (7 mph). The trend of diminishing wind speeds persists as the summer months approach, with July and August experiencing even lighter winds at 2.2 m/s (5 mph) and 2.1 m/s (5 mph), respectively. This gradual calmness not only signals the transition into warmer, sunnier days but also sets the stage for a more tranquil outdoor experience, perfect for enjoying scenic views and summer activities. As the year progresses, wind speeds are expected to rebound slightly in the fall, offering a dynamic contrast to early summer’s stillness.

Average June Wind Speed in San Luis Obispo

The chart displays monthly wind speed patterns in San Luis Obispo, with values for each month shown alongside June's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how June's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.53.33.03.33.32.8 m/s2.22.12.12.92.93.1
Data source: San Luis Obispo June wind data, generated using information from the Copernicus Climate Change Service.

How June Weather in San Luis Obispo Compares to Other Months

The weather in San Luis Obispo 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 Luis Obispo and find detailed weather information for every month.

The weather in June exhibits a warm and dry climate, with temperatures ranging from a minimum of 11°C (51°F) to a maximum of 31°C (88°F) and an average of 16°C (62°F). In stark contrast, January is much cooler, featuring a range from 4°C (40°F) to 23°C (74°F) and an average temperature of 12°C (54°F). Additionally, June experiences negligible precipitation, with no rainy days, while January sees significantly more rainfall at 110 mm (4.3 in) over about six days. Humidity levels are similar, with June at 74% and January slightly higher at 80%. For a more detailed look at January's weather, you can check San Luis Obispo weather in January.

June and February offer contrasting weather experiences. In June, temperatures rise, with a minimum of 11°C (51°F) and an average of 16°C (62°F), reaching a peak of 31°C (88°F). Notably, June boasts very little precipitation, with only 1 mm recorded over the month and dry conditions for all days, while humidity is a comfortable 74%. In contrast, February is much cooler, starting at a minimum of 4°C (39°F), averaging 12°C (54°F), and reaching a maximum of 25°C (77°F). However, February is significantly wetter, with 80 mm of rain over 6 days and a higher humidity level of 83%. For more detailed insights into February weather, you can check the link: San Luis Obispo weather in February.

In comparing the weather of June and March, June stands out with significantly warmer temperatures, featuring a minimum of 11°C (51°F) and a maximum of 31°C (88°F), compared to March, which has a minimum of 5°C (41°F) and a maximum of 24°C (76°F). While June enjoys dry conditions with only 1 mm of precipitation over no days, March experiences much wetter weather, accumulating 84 mm (3.3 inches) of rain over 9 days. Additionally, humidity levels are slightly lower in June at 74%, compared to 80% in March. For more detailed information on March weather, you can check San Luis Obispo weather in March.

When comparing the weather in June and April, June tends to be warmer with temperatures ranging from a minimum of 11°C (51°F) to a maximum of 31°C (88°F), while April experiences cooler temperatures, with a minimum of 7°C (44°F) and a maximum of 26°C (80°F). June boasts significantly lower precipitation, receiving only 1 mm (0.0 in) over the course of the month, whereas April sees more rain, totaling 23 mm (0.9 in) over three days. Humidity levels are quite similar, with April at 76% and June at 74%. For more detailed information, you can check San Luis Obispo weather in April.

June weather is notably warmer than May, with average temperatures increasing from 15°C (59°F) in May to 16°C (62°F) in June. The maximum temperatures in June can reach as high as 31°C (88°F), compared to a maximum of 25°C (77°F) in May. Additionally, June experiences significantly less precipitation, with only 1 mm falling over the course of the month and no rainy days, while May sees 12 mm of rain across two days. Both months maintain similar humidity levels, with June at 74% and May at 75%. For more insights on the climate in May, visit San Luis Obispo weather in May.

In comparing the weather between June and July, both months experience a similar range of temperatures, with July enjoying a slightly higher average of 18°C (64°F), compared to June's 16°C (62°F). The minimum temperatures also rise slightly in July to 12°C (55°F) from June's 11°C (51°F). Despite both months receiving just 1 mm of precipitation and having no rainy days, humidity levels are marginally higher in July at 75%, compared to June’s 74%. For more detailed insights on July weather, you can check out San Luis Obispo weather in July.

June and August in San Luis Obispo exhibit similar temperature ranges, with both months experiencing maximum temperatures peaking at 31°C (88°F). However, June boasts a slightly lower average temperature of 16°C (62°F) compared to August’s average of 18°C (65°F). Additionally, June has a minimum temperature of 11°C (51°F), while August's minimum increases to 13°C (55°F). Both months see minimal precipitation, with just 1 mm recorded and no rainy days, contributing to a consistently pleasant atmosphere. Interestingly, humidity levels are slightly higher in June at 74%, compared to 72% in August. For further insights, you can check San Luis Obispo weather in August.

In June, the weather features a minimum temperature of 11°C (51°F) and an average of 16°C (62°F), peaking at 31°C (88°F). The month is marked by very little precipitation, with only 1 mm recorded over 0 days and humidity levels at 74%. In contrast, September enjoys a slightly warmer average temperature of 18°C (65°F) and can reach up to 35°C (95°F), with the minimum temperature remaining the same at 11°C (53°F). Like June, September also sees minimal precipitation, with only 1 mm and no rainy days, but with a slightly lower humidity level of 70%. For more detailed insights, you can check out San Luis Obispo weather in September.

In June, the weather features a temperature range from a minimum of 11°C (51°F) to a maximum of 31°C (88°F), with an average temperature of 16°C (62°F). The month is notably dry with only 1 mm of precipitation and a humidity level of 74%. In contrast, October presents a similar temperature range, with a minimum of 9°C (49°F) and a maximum of 33°C (92°F), while maintaining a slightly higher average temperature of 17°C (64°F). Although October is still relatively dry, it sees more precipitation at 10 mm (0.4 in) while the humidity decreases to 70%. For more detailed information about weather conditions in October, check out San Luis Obispo weather in October.

June and November showcase notable differences in weather patterns. In June, temperatures range from a minimum of 11°C (51°F) to a warm maximum of 31°C (88°F), with an average of 16°C (62°F) and hardly any precipitation, making it a dry month. In contrast, November experiences cooler temperatures, with a minimum of 6°C (42°F) and a maximum of 26°C (79°F), averaging 15°C (59°F), and it sees more precipitation at 32 mm (1.2 in) over three days. Both months share a consistent humidity level of 74%, but the overall conditions in November are wetter and cooler compared to the warm and dry June. For more details on November weather, visit San Luis Obispo weather in November.

In June, the weather is generally warm and pleasant, with temperatures ranging from a cool 11°C (51°F) at night to a high of 31°C (88°F) during the day. With very minimal precipitation and an average humidity of 74%, it's a great time for outdoor activities. In contrast, December brings cooler temperatures, ranging from a chilly 5°C (42°F) to a mild 23°C (74°F), along with significantly higher precipitation at 76 mm (3.0 in) over about 6 days. Despite the increase in rain, humidity remains consistent at 76%, which can make the atmosphere feel damp. For more information, check out San Luis Obispo weather in December.

Compare San Luis Obispo's Climate with Cities Worldwide

Conclusion: What to Expect From June Weather in San Luis Obispo

June in San Luis Obispo ushers in a delightful transition as the summer season begins to unfold. With warm temperatures peaking around 31°C (88°F) and an average of 16°C (62°F), this month feels markedly different from the cooler spring months. Unlike earlier in the year, June boasts a remarkably dry atmosphere, with virtually no precipitation and humidity levels hovering around 74%. This creates the perfect backdrop for outdoor activities, making it an ideal time to explore the region's beautiful scenery. For those curious about the weather patterns throughout the year, check out San Luis Obispo Climate.