June Weather in Guerneville, United States

Last updated: February 24, 2025

June weather in Guerneville, United States, showcases a delightful blend of warm temperatures and low moisture. With maximum highs reaching 37°C (99°F) and a comfortable average of 19°C (67°F), residents and visitors can enjoy sunny days without the interruption of rainfall, as the month sees a mere 2 mm (0.1 in) of precipitation across 0 rainy days. The humidity hovers around 76%, adding a touch of tropical feel to the otherwise dry conditions. This perfect balance makes June an ideal time for outdoor activities and exploration in the vibrant natural surroundings of Guerneville.

June Temperature in Guerneville

In June, Guerneville experiences a notable shift in temperatures, with minimums climbing to 9°C (48°F) and maximums peaking spectacularly at 37°C (99°F). This month marks a significant warming trend compared to the preceding spring months, reflected in the average temperature of 19°C (67°F). This rise is particularly striking, as temperatures approach their summer highs, setting the stage for outdoor activities and vibrant community events. With warmth sweeping in, June offers a blend of sunny days and pleasant evenings, making it an ideal time for visitors and locals alike to embrace the natural beauty of the region.

June Weather in Guerneville: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Guerneville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec495052566066686867625349
Data source: Temperature data for Guerneville 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 Guerneville

In June, Guerneville experiences a notable shift in precipitation, with only 2 mm (0.1 in) of rain recorded, marking a significant decline from the moisture-rich winter months. This month typically sees no rainfall days, as the region transitions into its dry season. Following the pattern of steadily decreasing precipitation since January, when the area received 140 mm (5.5 in) over 9 days, June highlights the ongoing summer drought conditions. This minimal summer rainfall is a stark contrast to the earlier months, suggesting a trend toward drier weather as the year progresses, with July and August often completely devoid of precipitation. As the landscape basks in the warm summer sun, the rhythm of water is notably subdued, echoing the seasonal changes that characterize Guerneville’s climate.

June Precipitation Trends in Guerneville

The chart displays monthly precipitation patterns in Guerneville, 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.
JanFebMarAprMayJunJulAugSepOctNovDec14015796473020024361102
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Guerneville

In June, Guerneville experiences a notable decline in humidity, measuring at 76%, which marks a shift from the higher levels seen in the earlier months. This gradual decrease continues a trend established from the peak winter months, where humidity hovered above 80%. As spring transitions to summer, the air becomes more comfortable, providing a refreshing contrast to the lingering moisture of prior months. This trend continues into July and August, where humidity further drops to 70% and 66%, respectively, heralding the warm summer days ahead. The decline in humidity not only enhances outdoor enjoyment but also sets the stage for a vibrant summer landscape in the region.

June Average Humidity in Guerneville

This chart illustrates the average monthly humidity levels in Guerneville, 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.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%83%80%80%76%70%66%68%72%84%84%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Guerneville

In June, Guerneville experiences a significant spike in the UV Index, reaching an extreme level of 11. This marks a notable increase from the previous months, where values hovered between moderate and very high. As summer approaches, residents and visitors alike must remain vigilant, as the burn time decreases to just 10 minutes for unprotected skin. This trend of intensifying UV exposure continues into July, maintaining the same extreme level. The transition into June not only signals warmer days but also a clear call for sun safety awareness. For more insights on UV patterns throughout the year, check out the detailed information available at Guerneville UV Index.

Maximum UV Index Levels in Guerneville for June

The chart shows the monthly maximum UV Index (UVI) for Guerneville 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.
JanFebMarAprMayJunJulAugSepOctNovDec3578101111109643
Data source: Guerneville 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 Guerneville

As June unfolds in Guerneville, the golden rays of sunshine reach their peak, showering the town with an impressive 374 hours of light, a delightful crescendo that marks the transition into summer. This month showcases a significant upward trend, as daylight hours have steadily increased from 141 hours in January to 351 hours in May, setting the stage for June’s vibrant days. Following a slightly warmer July with 375 hours, the sunshine begins a gentle decline, yet the warmth of this season lingers. The brilliance of June not only brightens the landscape but also heralds a time for outdoor adventures and community gatherings, making it a cherished month for both locals and visitors alike.

Monthly Sunshine Duration in Guerneville: June Highlighted

The June sunshine duration represents the total number of hours Guerneville 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.
JanFebMarAprMayJunJulAugSepOctNovDec141h211h265h295h351h374h375h333h306h275h216h184h
Data source: Guerneville June Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Guerneville During June

In Guerneville, United States, the likelihood of enjoying sunny weather reaches a promising 78% in June. This marks a slight dip from May's impressive 84%, yet still reflects a strong trend of increasing sunshine as the region transitions from spring to summer. The upward trajectory begins in January with only 39% sunshine, gradually climbing through the months to peak in the summer. As the warmth of July and August sets in, the chances of sunny days remain high at 79% and 80% respectively, making late spring and early summer an ideal time for outdoor activities. With June confidently sitting within this sunny pattern, residents and visitors alike can look forward to delightful days filled with sunshine.

Percentage of Sunny Days in June in Guerneville

The chart illustrates the percentage of sunny days in Guerneville 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 Guerneville experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec39%58%64%71%84%78%79%80%72%52%48%36%
Data source: Guerneville June chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Guerneville in June

In Guerneville, United States, the arrival of June brings a delightful continuation of lengthy daylight, with the sun shining for approximately 14 hours each day. This marks the peak of daylight duration, closely following the progressive increase seen from January to May, when the hours of sunlight gradually extended from 9 hours to 14 hours. July maintains this vibrant atmosphere, ensuring long summer evenings are cherished. However, as summer winds down, August and September start to signal a slight decline, with daylight gradually tapering off. This rhythmic shift not only enhances the seasonal charm but also sets the stage for the cozy transitions into autumn, inviting residents and visitors alike to make the most of the lingering daylight while it lasts.

Average Daylight Hours in Guerneville for June

The chart illustrates the variation in daylight duration in Guerneville throughout the year, with June highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 48m10h 46m11h 59m13h 13m14h 16m14h 47m14h 30m13h 34m12h 22m11h 8m10h 3m9h 30m
Data source: Guerneville daylight hours, calculated by summing the hours between sunrise and sunset for each day.

June Winds in Guerneville

June in Guerneville brings a refreshing breeze with an average wind speed of 3.4 m/s (8 mph), marking a subtle peak in wind activity as the summer months approach. Following a progressive increase from the calm of early spring, May's winds pick up, hinting at the lively summer that awaits. Interestingly, June’s winds moderate from the earlier gusts, creating a comfortable balance that’s ideal for outdoor activities. As the season transitions into July, a notable drop to 2.4 m/s (5 mph) occurs, reminiscent of the gentler breezes that dominate the late summer months. This pattern illustrates a rich tapestry of wind dynamics throughout the year, with June offering a perfect blend of gentle yet invigorating air, making it a delightful time to enjoy the natural beauty of Guerneville.

Average June Wind Speed in Guerneville

The chart displays monthly wind speed patterns in Guerneville, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.43.02.93.24.13.4 m/s2.42.42.32.71.82.5
Data source: Guerneville June wind data, generated using information from the Copernicus Climate Change Service.

How June Weather in Guerneville Compares to Other Months

The weather in Guerneville 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 Guerneville and find detailed weather information for every month.

June and January present strikingly contrasting weather conditions. In June, temperatures range from a pleasant minimum of 9°C (48°F) to a sizzling maximum of 37°C (99°F), with an average temperature of 19°C (67°F). The month enjoys minimal precipitation, averaging only 2 mm (0.1 in) over no rainy days, and a comfortable humidity level of 76%. In contrast, January experiences much cooler temperatures, with a minimum of -1°C (30°F), an average of 10°C (50°F), and a maximum of 25°C (77°F). This month is notably wetter, receiving about 140 mm (5.5 in) of rainfall over nine days, and higher humidity levels at 86%. For a deeper look into January weather specifics, you can explore Guerneville weather in January.

When comparing the weather in June and February, significant differences are evident. June experiences a much warmer range of temperatures, with a minimum of 9°C (48°F) and a maximum soaring to 37°C (99°F), while February sees cooler conditions, with temperatures ranging from a minimum of -3°C (27°F) to a maximum of 25°C (77°F). Precipitation also varies greatly; February is much wetter, receiving 157 mm (6.2 in) over 8 days compared to June's virtually dry climate with only 2 mm (0.1 in) and no rainy days. Additionally, February has higher humidity levels at 84%, compared to June's 76%. For more on February weather specifics, you can visit Guerneville weather in February.

When comparing the weather in March and June, a stark contrast emerges. March typically sees cooler temperatures, with a minimum of 0°C (32°F) and an average of 11°C (52°F), peaking at 26°C (80°F). This month is also characterized by significant precipitation, averaging 96 mm (3.8 in) over about 10 days, contributing to a higher humidity level of 83%. In contrast, June experiences much warmer conditions, with a minimum of 9°C (48°F), an average of 19°C (67°F), and highs reaching up to 37°C (99°F). June is considerably drier, recording only 2 mm (0.1 in) of precipitation over zero rainy days, though humidity remains relatively high at 76%. For more detailed insights into the weather during this time, refer to Guerneville weather in March.

When comparing the weather in June and April, it's clear that June tends to be much warmer and drier. June boasts a minimum temperature of 9°C (48°F) and an average of 19°C (67°F), reaching highs of 37°C (99°F) with virtually no precipitation, recorded at just 2 mm (0.1 in) over 0 days. In contrast, April experiences cooler temperatures, with a minimum of 3°C (37°F) and an average of 13°C (57°F), peaking at 30°C (86°F). Furthermore, April sees significantly more rainfall, totaling 47 mm (1.9 in) over 6 days, and a slightly higher humidity level of 80%. For more details, check out Guerneville weather in April.

In comparing the weather of June and May, we see a notable increase in temperatures during June, with minimums rising from 5°C (41°F) in May to 9°C (48°F), and average highs escalating from 33°C (91°F) in May to a scorching 37°C (99°F) in June. Despite these higher temperatures, June enjoys significantly less precipitation, recording only 2 mm (0.1 in) over the entire month, while May experienced 30 mm (1.2 in) across three rainy days. Additionally, humidity remains relatively high in both months, with June at 76% and May slightly higher at 80%. These contrasts highlight June's transition into drier and warmer conditions compared to the wetter and cooler May. For more specific details on May weather patterns, you can visit Guerneville weather in May.

June and July showcase distinct weather patterns, with June experiencing a wider temperature range, from a chilly minimum of 9°C (48°F) to a scorching maximum of 37°C (99°F) and an average of 19°C (67°F). In contrast, July features slightly warmer nights with a minimum of 11°C (53°F) and a more moderate maximum of 35°C (95°F), averaging around 20°C (68°F). Both months enjoy remarkably low precipitation, with June recording just 2 mm and July remaining completely dry. Humidity levels are also marginally lower in July at 70% compared to June's 76%. For more specific details on July weather, visit Guerneville weather in July.

In June, temperatures range significantly from a cool minimum of 9°C (48°F) to a scorching maximum of 37°C (99°F), with an average of 19°C (67°F). The month experiences no recorded precipitation and has a notably high humidity level of 76%. In contrast, August brings slightly milder temperatures, with a minimum of 10°C (50°F) and a maximum of 35°C (96°F), averaging around 20°C (68°F). Notably, August remains dry with zero precipitation and a lower humidity of 66%. Overall, while both months are characterized by dry conditions, August offers a slight decrease in temperature and humidity compared to June. For more specific information about the weather conditions in August, check out Guerneville weather in August.

In comparing the weather between June and September, we see that both months have a similar average temperature of 19°C (67°F), but September can reach higher maximum temperatures, peaking at 40°C (103°F) compared to June's max of 37°C (99°F). Precipitation levels are identical in both months, with only 2 mm recorded and no precipitation days, highlighting a dry season in both. However, humidity drops from 76% in June to 68% in September, suggesting a slightly drier feel in the latter month. For more detailed information, you can check Guerneville weather in September.

June and October present distinct weather patterns. In June, temperatures typically range from a minimum of 9°C (48°F) to a maximum of 37°C (99°F), with an average of 19°C (67°F), accompanied by low precipitation levels of just 2 mm (0.1 in) and no rainy days. The humidity is relatively high at 76%, creating a warm and muggy atmosphere.

In contrast, October sees a cooler climate with minimum temperatures dropping to 3°C (38°F), an average of 16°C (62°F), and a maximum of 35°C (94°F). This month experiences significantly more precipitation, totaling 43 mm (1.7 in) over two days, while humidity remains slightly lower at 72%. For a closer look, you can check Guerneville weather in October.

June and November present stark contrasts in weather patterns. June boasts warm temperatures, ranging from a comfortable minimum of 9°C (48°F) to a sizzling maximum of 37°C (99°F), with an average of 19°C (67°F). This month is characterized by minimal precipitation, recording only 2 mm (0.1 in) across no rainy days, and a humidity level of 76%. In contrast, November brings cooler weather, with temperatures dipping to a minimum of -1°C (30°F) and reaching a maximum of 27°C (81°F), averaging around 12°C (54°F). November is notably wetter, with 61 mm (2.4 in) of precipitation over five days and a higher humidity level of 84%. For more details on November weather, check out Guerneville weather in November.

June and December present strikingly different weather patterns. In June, temperatures range from a minimum of 9°C (48°F) to a maximum of 37°C (99°F), with an average of 19°C (67°F). The month is characterized by negligible precipitation, recording only 2 mm (0.1 in) over zero rainy days, alongside a humidity level of 76%. In contrast, December sees cooler temperatures, with a minimum of 0°C (32°F) and a maximum of 24°C (75°F), averaging 9°C (49°F). This month is much wetter, boasting 102 mm (4.0 in) of rainfall spread over 9 days and slightly higher humidity at 84%. For more detailed insights, check out Guerneville weather in December.

Compare Guerneville's Climate with Cities Worldwide

Conclusion: What to Expect From June Weather in Guerneville

June in Guerneville is a delightful transition into summer, characterized by mild temperatures and remarkably low precipitation. With an average of 19°C (67°F) and an impressive maximum of 37°C (99°F), the days are warm and inviting, making it a perfect time for outdoor activities. Unlike the wetter months preceding it, June boasts zero days of rain, keeping the environment dry and the humidity comfortably high at 76%. This unique blend of factors sets June apart, creating an ideal ambience for enjoying everything Guerneville has to offer. For more insights on the year-round climate, visit Guerneville Climate.