March Weather in Guerneville, United States

Last updated: February 24, 2025

In March, Guerneville experiences a delightful spring transition characterized by a maximum temperature of 26°C (80°F) and an average temperature of 11°C (52°F), making it an inviting destination for nature lovers. However, visitors should be prepared for cooler nights, with temperatures dipping to a minimum of 0°C (32°F). The month is also marked by 96 mm (3.8 in) of precipitation over approximately 10 days, contributing to the region's lush landscapes. With a humidity level averaging 83%, residents and travelers alike can expect a vibrant, fresh atmosphere as the area begins to bloom.

March Temperature in Guerneville

In March, Guerneville begins to shake off the winter chill, as temperatures gently transition into the mild embrace of spring. With a minimum temperature of 0°C (32°F), the days gradually warm up, reaching an average of 11°C (52°F) and peaking at 26°C (80°F). This shift demonstrates a subtle upward trend when compared to the preceding months, inviting residents and visitors alike to enjoy the blooming landscapes and the onset of outdoor activities. The consistent rise in temperatures reflects the promise of warmer days ahead, setting the stage for a vibrant April.

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

The chart illustrates March 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.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

March Precipitation in Guerneville

In March, Guerneville experiences a noticeable dip in precipitation, receiving 96 mm (or 3.8 inches) of rain over approximately 10 days. This marks a significant decrease from both January and February, when the area was soaked with 140 mm and 157 mm respectively. The shift is clear as the region transitions into spring, heralding the gradual drying that follows in the coming months. By April, the rainfall plummets further to just 47 mm, showcasing a striking trend where precipitation dwindles rapidly as the summer approaches. This pattern reflects the region's climate dynamics, where the early year is marked by plentiful rains, paving the way for the dry spells typical of summer months.

March Precipitation Trends in Guerneville

The chart displays monthly precipitation patterns in Guerneville, with values for each month alongside March's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec14015796473020024361102
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

March Humidity in Guerneville

In March, humidity levels in Guerneville, United States reach an average of 83%, marking a gradual decline from the wetter winter months of January and February, which see humidity levels at 86% and 84%, respectively. This downward trend hints at the onset of spring, as the moisture in the air begins to ease, paving the way for more comfortable conditions. As the spring months progress into April and May, humidity continues to decrease to 80%, suggesting a transition towards the drier summer months. This steady reduction not only enhances outdoor enjoyment but also signals a shift in Guerneville’s climate, setting the stage for a vibrant and inviting spring season.

March Average Humidity in Guerneville

This chart illustrates the average monthly humidity levels in Guerneville, with March's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how March's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%83%80%80%76%70%66%68%72%84%84%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Guerneville

In March, Guerneville experiences a notable increase in the UV Index, reaching a level of 7, which is categorized as high. This shift marks a transition from the previous months, where the UV indices were more moderate. With a burn time of just 25 minutes, it’s essential to take precautions against sun exposure, especially as spring approaches and outdoor activities become more frequent. As the year progresses, the UV Index continues to rise, peaking in the summer months, illustrating the need for vigilant sun safety strategies throughout the changing seasons. For more information on the UV Index in Guerneville, visit Guerneville UV Index.

Maximum UV Index Levels in Guerneville for March

The chart shows the monthly maximum UV Index (UVI) for Guerneville in March, 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 March 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.

March Sunshine in Guerneville

March in Guerneville heralds a delightful transition into spring, boasting an impressive 265 hours of sunshine. This marks a significant leap from the 211 hours recorded in February, reflecting a vibrant uptick as the days grow longer and brighter. As the warmth begins to embrace the landscape, March serves as a precursor to the peak sunny months ahead, including April's 295 hours and May's 351 hours. The steady increase in sunlight not only enhances the natural beauty of Guerneville but also invites locals and visitors alike to revel in the blooming scenery and outdoor activities that the spring sun brings. It’s a magical time when the region awakens, promising more sunny days as summer approaches.

Monthly Sunshine Duration in Guerneville: March Highlighted

The March sunshine duration represents the total number of hours Guerneville experiences direct sunlight during the month of March, excluding cloudy or obstructed periods. This chart compares the sunshine duration of March with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec141h211h265h295h351h374h375h333h306h275h216h184h
Data source: Guerneville March Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Guerneville During March

March in Guerneville heralds the transition toward spring, bringing with it a notable increase in sunny days, with a 64% chance of sunshine. This marks a significant rise from the preceding months, where January's sun was only a modest 39% and February saw a considerable jump to 58%. As the days grow longer and warmer, March sets the stage for an even brighter April, which boasts a 71% opportunity for sunny weather. The upward trend continues, suggesting that as spring unfolds, residents and visitors alike can look forward to more sun-soaked days ahead. This pattern not only enhances outdoor activities but also creates an inviting atmosphere as nature awakens from its winter slumber.

Percentage of Sunny Days in March in Guerneville

The chart illustrates the percentage of sunny days in Guerneville throughout the year, with March 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 March chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Guerneville in March

As March unfolds in Guerneville, daylight begins to stretch, offering an average of 11 hours of sunshine—a notable increase from 10 hours in February. This gradual lengthening of days signals the transition into spring, where the promise of longer, brighter afternoons is palpable. Following this pattern, daylight continues to increase in April, reaching 13 hours, and further extends into 14 hours by May. The trend toward longer days not only enhances outdoor activities but also uplifts spirits, providing vibrant opportunities to enjoy the natural beauty of the area as it awakens from winter.

Average Daylight Hours in Guerneville for March

The chart illustrates the variation in daylight duration in Guerneville throughout the year, with March 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.

March Winds in Guerneville

As March unfolds in Guerneville, United States, the average wind speed hovers around 2.9 m/s (7 mph), presenting a gentle yet refreshing breeze that signals the transition from winter to spring. This month experiences a slight dip from February's breezier average of 3.0 m/s, but it maintains a consistent wind pattern that prepares the area for the warmer months ahead. Following March, the winds pick up in April, reaching 3.2 m/s, and continue to intensify through May, where they peak at 4.1 m/s (9 mph). This trend not only enhances outdoor activities during the spring season but also brings life to the lush surroundings, creating a dynamic atmosphere in Guerneville. As the year progresses, the wind speeds generally decrease during the summer months, reflecting a seasonal rhythm that invites both relaxation and exploration in this charming locale.

Average March Wind Speed in Guerneville

The chart displays monthly wind speed patterns in Guerneville, with values for each month shown alongside March's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how March's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.43.02.9 m/s3.24.13.42.42.42.32.71.82.5
Data source: Guerneville March wind data, generated using information from the Copernicus Climate Change Service.

How March 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 March'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.

In comparing the weather of March and January, we see that March experiences a slightly milder temperature range, with minimums at 0°C (32°F) and maximums reaching up to 26°C (80°F), compared to January's lower minimum of -1°C (30°F) and a similar maximum of 25°C (77°F). Precipitation levels are lower in March, totaling 96 mm (3.8 in) over 10 days, whereas January sees more rain, amassing 140 mm (5.5 in) across 9 days. Humidity remains comparable, with January at 86% and March at 83%. For a more detailed look at January's climate, you can check Guerneville weather in January.

March shows a gradual warming trend compared to February, with average temperatures rising from 10°C (51°F) in February to 11°C (52°F) in March. While March experiences slightly higher maximum temperatures, reaching up to 26°C (80°F), it still remains cooler on the minimum end, with March's lows starting at 0°C (32°F) compared to February's low of -3°C (27°F).

In terms of precipitation, February is notably wetter with 157 mm (6.2 in) over 8 days, while March has reduced precipitation at 96 mm (3.8 in) over 10 days, despite the increased humidity levels in both months averaging around 83% in March and 84% in February. For more detailed information, you can check Guerneville weather in February.

In comparing the weather between March and April, April typically shows a slight increase in temperatures, with minimums rising from 0°C (32°F) in March to 3°C (37°F) and average highs reaching up to 30°C (86°F) compared to March's maximum of 26°C (80°F). Precipitation also decreases significantly in April, dropping to 47 mm (1.9 in) over just 6 rainy days, in contrast to March's 96 mm (3.8 in) over 10 days. Additionally, humidity levels decrease slightly from 83% in March to 80% in April, suggesting a somewhat drier feel as the spring progresses. For more detailed information, you can check Guerneville weather in April.

March and May present a notable contrast in weather patterns. In March, temperatures range from a chilly minimum of 0°C (32°F) to a more comfortable maximum of 26°C (80°F), with an average of 11°C (52°F). This month experiences significant precipitation, totaling 96 mm (3.8 in) over about 10 days, resulting in high humidity levels of 83%. In contrast, May enjoys milder conditions with temperatures starting at a minimum of 5°C (41°F) and peaking at 33°C (91°F), averaging around 16°C (60°F). Furthermore, May is significantly drier, with only 30 mm (1.2 in) of precipitation spread across just 3 days and a slightly lower humidity level of 80%. For more detailed insights, you can check Guerneville weather in May.

March and June present distinct weather profiles. In March, temperatures range from a chilly minimum of 0°C (32°F) to a comfortable maximum of 26°C (80°F), with an average temperature of 11°C (52°F). This month also sees substantial precipitation, averaging 96 mm (3.8 in) over about 10 days and maintaining a high humidity level of 83%. In contrast, June experiences significantly warmer conditions, with temperatures starting at a minimum of 9°C (48°F) and soaring to a scorching maximum of 37°C (99°F), along with an average temperature of 19°C (67°F). Notably, June is characterized by minimal precipitation with only 2 mm (0.1 in) and no rainy days, resulting in lower humidity at 76%. For a closer look at June's weather specifics, check out Guerneville weather in June.

March and July present a striking contrast in weather patterns. In March, temperatures range from a chilly minimum of 0°C (32°F) to a pleasant maximum of 26°C (80°F), with an average of 11°C (52°F). This month also sees significant precipitation, averaging 96 mm (3.8 in) spread over 10 days, accompanied by high humidity at 83%. In contrast, July boasts much warmer temperatures, with a minimum of 11°C (53°F) and a maximum of 35°C (95°F), averaging 20°C (68°F). Notably, July experiences no precipitation, averaging 0 mm (0.0 in) on 0 rainy days, and lower humidity at 70%. For more details on July weather, you can check out Guerneville weather in July.

March and August present striking contrasts in weather conditions. In March, temperatures range from a chilly minimum of 0°C (32°F) to a pleasant maximum of 26°C (80°F), with an average of 11°C (52°F). This month also sees significant rainfall, with about 96 mm (3.8 in) of precipitation spread over 10 days, contributing to a high humidity level of 83%. In contrast, August boasts a much warmer climate, with temperatures that start at a comfortable minimum of 10°C (50°F) and can reach up to 35°C (96°F), averaging around 20°C (68°F). Notably, August is dry, receiving no precipitation and only a modest humidity level of 66%. For more details, check out Guerneville weather in August.

March typically sees a cooler and wetter climate compared to September. With temperatures ranging from a low of 0°C (32°F) to a high of 26°C (80°F), March experiences an average temperature of 11°C (52°F) and significant precipitation of 96 mm (3.8 in) over about 10 days, accompanied by high humidity at 83%. In contrast, September offers a much warmer and drier environment, with temperatures varying from 8°C (47°F) to an impressive 40°C (103°F) and an average of 19°C (67°F). Notably, September sees minimal precipitation of just 2 mm (0.1 in) and often enjoys clear skies, making it a popular month for outdoor activities. For detailed information about the weather in this month, you can check Guerneville weather in September.

March weather features a wider temperature range, with minimums around 0°C (32°F) and maximums reaching 26°C (80°F), while October presents a milder range, with minimum temperatures at 3°C (38°F) and highs peaking at 35°C (94°F). March also experiences significantly higher precipitation, averaging 96 mm (3.8 in) over about 10 days, compared to October's drier conditions with only 43 mm (1.7 in) occurring across just 2 days. Additionally, March humidity is higher at 83%, while October's humidity is lower at 72%. For more detailed insights, check Guerneville weather in October.

In comparing the weather of March and November, both months exhibit a range of temperatures that highlight their transitional nature. March typically sees temperatures ranging from a chilly 0°C (32°F) at night to a pleasant maximum of 26°C (80°F) during the day, with an average temperature of 11°C (52°F). This month is characterized by significant precipitation, averaging 96 mm (3.8 in) over approximately 10 days, and high humidity levels at 83%.

In contrast, November presents slightly colder temperatures, starting at a minimum of -1°C (30°F) and reaching a maximum of 27°C (81°F), with an average of 12°C (54°F). The total precipitation is lower at 61 mm (2.4 in) spread over just 5 days, and humidity remains high at 84%. Overall, while March brings more rain and varied temperatures, November offers a milder climate with less frequent precipitation. For more details on the weather in November, you can visit Guerneville weather in November.

March and December in Guerneville showcase distinct weather patterns that reflect the transition between seasons. In March, temperatures typically range from a chilly 0°C (32°F) at night to a pleasant average of 11°C (52°F) during the day, peaking at a warm 26°C (80°F). The month sees about 96 mm (3.8 in) of rainfall across approximately 10 days, with humidity around 83%. In comparison, December experiences slightly cooler average temperatures, starting from the same minimum of 0°C (32°F) but averaging only 9°C (49°F) and reaching a maximum of 24°C (75°F). The precipitation is marginally higher at 102 mm (4.0 in), spread over 9 days, with humidity slightly increased at 84%. For more detailed insights into December weather in Guerneville, you can visit Guerneville weather in December.

Compare Guerneville's Climate with Cities Worldwide

Conclusion: What to Expect From March Weather in Guerneville

March in Guerneville brings a refreshing shift in weather as winter melts away, ushering in milder temperatures and a noticeable increase in humidity. With maximum highs reaching a pleasant 26°C (80°F) while nighttime cools down significantly, the month serves as a bridge to spring. Although March experiences a moderate amount of precipitation with about ten rainy days, it is this very rainfall that breathes life into the surrounding nature, setting the stage for the blooming season ahead. The lush landscapes and vibrant atmosphere distinguish March from the drier, hotter summer months, making it a unique and rejuvenating time to visit. For a deeper understanding of what to expect year-round, check out the Guerneville Climate page.