March Weather in San Jose, United States

Last updated: February 24, 2025

March weather in San Jose, United States is characterized by a moderate temperature range, with highs reaching up to 26°C (79°F) and lows dipping to around 1°C (34°F). The average temperature hovers at a comfortable 11°C (53°F), making it a pleasant time of the year. However, residents and visitors should be prepared for rain, as the city experiences approximately 114 mm (4.5 in) of precipitation over about 12 days. With a humidity level of 82%, the air carries a freshness that complements the vibrant spring atmosphere, bringing new life to the surrounding landscapes.

March Temperature in San Jose

As March begins to unfold in San Jose, temperatures take a gentle upward turn, reflecting the transition into spring. With a minimum temperature of 1°C (34°F) and a maximum reaching 26°C (79°F), the month offers a pleasant average of 11°C (53°F) that invites outdoor activities. This warming trend follows a mild February, where temperatures barely dipped below freezing, and sets the stage for even warmer April days ahead. The gradual increase not only brings about longer daylight hours but also a sense of revitalization, as residents can bask in the mild afternoons that hint at the sunny months to come. March serves as an ideal backdrop for enjoying the blossoming scenery and vibrant outdoors of the region.

March Weather in San Jose: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in San Jose, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec505153565964666766635550
Data source: Temperature data for San Jose 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.

March Precipitation in San Jose

March in San Jose sees a significant shift as the landscape transitions from the wet winter months to the drier spring season. While precipitation levels drop to 114 mm (4.5 in) over 12 rainy days, this month still marks a tapering of the robust rainfall experienced in January and February. January and February delivered 145 mm and 133 mm, respectively, with each month averaging around 8 days of rain. By March, however, the decrease in precipitation reflects a trend often seen as spring approaches, with April and May expected to bring even less moisture, down to just 37 mm (1.4 in) and 24 mm (0.9 in) respectively. As the city bids farewell to its wettest months, residents begin to anticipate a drier spell ahead, with the impending dry season clearly on the horizon.

March Precipitation Trends in San Jose

The chart displays monthly precipitation patterns in San Jose, 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.
JanFebMarAprMayJunJulAugSepOctNovDec145133114372410132556116
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in San Jose

March in San Jose sees the humidity level settle at 82%, echoing the dampness of January and February. This transitional month hints at the upcoming spring, maintaining a noticeable humidity that contributes to the region's lush landscapes. As the year progresses, humidity gradually declines, with April dipping to 78% and further falling toward the warmer months ahead. The trend illustrates a shift from the cooler, more humid start of the year to the dry, sunny conditions typical of summer, with July and August boasting the lowest levels at 58% and 54%, respectively. This cyclical pattern showcases San Jose’s dynamic climate throughout the year.

March Average Humidity in San Jose

This chart illustrates the average monthly humidity levels in San Jose, 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.
JanFebMarAprMayJunJulAugSepOctNovDec82%84%82%78%71%64%59%54%55%62%78%80%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in San Jose

As March arrives in San Jose, the UV Index takes a leap, jumping to 8, which falls into the very high exposure category. This marked increase from February's UV Index of 5 signals a shift in the sun’s intensity, prompting residents to be more cautious to avoid sunburn, with a reduced burn time of just 15 minutes. The transition into spring not only brings warmer days but also escalates the need for sun protection, a trend that continues into April with an even higher UV Index of 9. While January and February offered a more moderate UV experience, March indicates that the summer sun is rapidly approaching. Staying informed about UV levels is crucial, and for more detailed information, visit San Jose UV Index.

Maximum UV Index Levels in San Jose for March

The chart shows the monthly maximum UV Index (UVI) for San Jose 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.
JanFebMarAprMayJunJulAugSepOctNovDec4589111111109753
Data source: San Jose 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 San Jose

March in San Jose ushers in an impressive 269 hours of sunshine, marking a notable leap from the 222 hours enjoyed in February. This transition signals the onset of spring, as daylight hours continue to multiply with each passing month. The upward trend is compelling, paving the way for even sunnier days ahead, notably April, which basks in 303 hours of glorious sunlight. This steady increase not only enhances the city's vibrant outdoor lifestyle but also sets the stage for the luscious greenery and blooming flowers that define the season. March thus stands as a pivotal point in the year, bridging the coolness of winter with the warmth of the approaching summer.

Monthly Sunshine Duration in San Jose: March Highlighted

The March sunshine duration represents the total number of hours San Jose 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.
JanFebMarAprMayJunJulAugSepOctNovDec162h222h269h303h360h373h379h348h310h286h233h206h
Data source: San Jose March Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in San Jose During March

In San Jose, March welcomes the arrival of spring with a 56% chance of sunny weather, making it one of the brighter months of the year. This is relatively consistent with February’s slightly higher 57%, showcasing a trend of increasing sunshine as the region transitions away from winter. As the months progress, this sunny disposition continues to rise, peaking in the summer with July and August enjoying an impressive 74% and 84% respectively. Overall, March is a promising time for those seeking clear skies, as it sits comfortably in the mid-range before the warmer months fully embrace their radiant charm.

Percentage of Sunny Days in March in San Jose

The chart illustrates the percentage of sunny days in San Jose 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 San Jose experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec44%57%56%56%75%74%75%84%80%58%55%40%
Data source: San Jose March chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in San Jose in March

As March arrives in San Jose, residents can enjoy a blooming increase in daylight, with 11 hours of sunlight illuminating the day. This marks a gradual transition from the 10 hours in February and sets the stage for the longer days of spring and summer ahead. As the month progresses, daylight will continue to extend, paving the way for 14-hour sun-filled days by May. With each passing month, the trend clearly indicates that San Jose basks in increasingly longer periods of sunlight, enhancing outdoor activities and the vibrant spirit of the community as it emerges from winter’s embrace.

Average Daylight Hours in San Jose for March

The chart illustrates the variation in daylight duration in San Jose throughout the year, with March highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 55m10h 49m11h 59m13h 10m14h 10m14h 39m14h 23m13h 30m12h 21m11h 10m10h 9m9h 38m
Data source: San Jose daylight hours, calculated by summing the hours between sunrise and sunset for each day.

March Winds in San Jose

In March, San Jose experiences a gentle breeze with an average wind speed of 2.1 m/s (5 mph), consistent with the preceding months of January and February, both enjoying similarly mild conditions. This steady flow of wind creates a pleasant atmosphere, ideal for outdoor activities as spring begins to take hold. As the season shifts toward April, the winds dip slightly to 1.9 m/s (4 mph), followed by a gradual return to calmness by mid-summer when speeds drop further to 1.5 m/s (3 mph) in August. Overall, the trend reveals a pattern of relatively light winds throughout the early months of the year, making March a particularly lovely time for residents to enjoy the idyllic Californian climate.

Average March Wind Speed in San Jose

The chart displays monthly wind speed patterns in San Jose, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.12.22.1 m/s1.92.22.11.61.51.62.11.72.2
Data source: San Jose March wind data, generated using information from the Copernicus Climate Change Service.

How March Weather in San Jose Compares to Other Months

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

When comparing the weather in January and March, both months exhibit similar humidity levels, sitting at 82%. However, March generally offers a broader temperature range, with minimums reaching 1°C (34°F) and maximums hitting 26°C (79°F) compared to January's minimum of 0°C (32°F) and maximum of 24°C (75°F). Precipitation is notably lower in March, totaling 114 mm (4.5 in) over 12 days, versus January's 145 mm (5.7 in) over just 8 days. For more detailed information, you can check out San Jose weather in January.

March weather in San Jose experiences slightly warmer conditions than February, with average temperatures remaining the same at 11°C (53°F), but March sees a higher minimum temperature of 1°C (34°F) compared to February's -1°C (30°F). Despite these milder temperatures, March tends to have more days of precipitation, totaling 12 days, though the overall rainfall is lower at 114 mm (4.5 in) compared to February's 133 mm (5.2 in). Additionally, humidity levels are closely comparable, with March at 82% and February at 84%. For more detailed information, you can check San Jose weather in February.

March and April exhibit notable differences in weather patterns. March experiences a broader temperature range, with minimums dipping to 1°C (34°F) and maximums reaching up to 26°C (79°F). In contrast, April sees slightly warmer temperatures, with a minimum of 3°C (38°F) and maximums scaling up to 31°C (88°F). Precipitation is abundant in March, totaling 114 mm (4.5 in) over 12 days, while April is considerably drier, bringing only 37 mm (1.4 in) across just 4 days. Humidity levels are also slightly lower in April at 78%, compared to March’s 82%. For more detailed insights on the weather, you can check San Jose weather in April.

In comparing the weather between March and May, notable differences emerge. March experiences a broader temperature range, with minimums dipping to 1°C (34°F) and maximums reaching up to 26°C (79°F), while May sees milder lows of 5°C (40°F) and warmer highs peaking at 32°C (90°F). Precipitation is significantly higher in March, with 114 mm (4.5 inches) falling over 12 days, in stark contrast to May's drier conditions with only 24 mm (0.9 inches) over just 2 days. Additionally, March tends to be more humid at 82%, compared to May’s lower humidity level of 71%. This shift marks a transition into a warmer and drier spring, indicative of San Jose weather in May.

March and June present contrasting weather patterns. In March, temperatures range significantly from a chilly minimum of 1°C (34°F) to a pleasant maximum of 26°C (79°F), with an average of 11°C (53°F). The month is also characterized by substantial rainfall, accumulating to 114 mm (4.5 in) over 12 days, contributing to a high humidity level of 82%. In contrast, June experiences warmer temperatures, with a minimum of 8°C (47°F) and a comfortable average of 18°C (64°F), peaking at a sweltering 37°C (99°F). Notably, June has minimal precipitation, with just 1 mm (0.0 in) and no rainy days, leading to a lower humidity of 64%. For more details on June's climate, you can check San Jose weather in June.

In contrast to March's cooler temperatures, which range from a minimum of 1°C (34°F) to a maximum of 26°C (79°F) with significant precipitation of 114 mm (4.5 in) over about 12 days, July boasts much warmer weather, featuring minimum temperatures around 10°C (50°F) and highs reaching 34°C (93°F). Furthermore, July experiences dry conditions with no recorded precipitation and lower humidity at 58%, making it a stark departure from the wet and humid climate of March, which has an average humidity of 82%. For more details on the weather during July, you can check out San Jose weather in July.

March and August present stark contrasts in weather conditions. In March, temperatures range from a chilly minimum of 1°C (34°F) to a pleasant maximum of 26°C (79°F), with an average temperature around 11°C (53°F). This month is marked by significant precipitation, averaging 114 mm (4.5 inches) over about 12 days, contributing to a higher humidity level of 82%. In contrast, August features much warmer temperatures, with a minimum of 11°C (52°F) and a scorching maximum reaching up to 39°C (102°F), while the average temperature sits at 19°C (67°F). Remarkably, August sees no rainfall, registering 0 mm of precipitation over 0 days, leading to a considerably lower humidity of 54%. For more insights, check out San Jose weather in August.

March and September exhibit notably different weather patterns. March experiences a wide temperature range, with minimums around 1°C (34°F) and maximums reaching up to 26°C (79°F), alongside significant precipitation totaling 114 mm (4.5 inches) over about 12 days, resulting in a high humidity level of 82%. In contrast, September tends to be much warmer, with minimum temperatures of 7°C (45°F) and averages around 19°C (67°F); however, it can occasionally spike to a scorching 41°C (106°F). Additionally, September is characterized by dry weather, with only 3 mm (0.1 inches) of precipitation and no rainy days, leading to a significantly lower humidity of 55%. For more details, check out San Jose weather in September.

March and October exhibit stark contrasts in weather patterns. In March, temperatures range from a chilly minimum of 1°C (34°F) to a pleasant average of 11°C (53°F), peaking at a warm 26°C (79°F). This month also sees significant rainfall, with 114 mm (4.5 in) of precipitation spread over 12 days, accompanied by high humidity levels of 82%. In contrast, October enjoys milder conditions, with minimum temperatures averaging at 5°C (42°F) and a comfortable average of 17°C (63°F), reaching up to a maximum of 34°C (94°F). Rainfall significantly decreases to just 25 mm (1.0 in) over a single day, and humidity levels drop to 62%. For more detailed insights, you can visit San Jose weather in October.

March and November exhibit notable differences in weather patterns despite sharing similar minimum temperatures. In March, the average temperature is slightly lower at 11°C (53°F), with highs reaching up to 26°C (79°F) and a higher precipitation level of 114 mm (4.5 in) over about 12 days, resulting in a humidity of 82%. Conversely, November enjoys a warmer average of 13°C (56°F) and higher maximum temperatures of 28°C (83°F), but with significantly less rainfall at 56 mm (2.2 in) spread across just 5 days, leading to a lower humidity of 78%. For a more detailed look at November's climate, you can check San Jose weather in November.

In comparing the weather between March and December, we observe that both months feature similar temperature ranges, with March having a slightly higher average maximum of 26°C (79°F), compared to December's 24°C (76°F). The minimum temperatures are equal at 1°C (34°F), while the average temperatures are closely matched, with March averaging 11°C (53°F) and December averaging 10°C (50°F). Precipitation levels are also comparable; March receives 114 mm (4.5 in) over 12 days, while December sees 116 mm (4.6 in) across just 9 days, indicating December might experience slightly heavier but less frequent rain. Humidity levels are relatively similar as well, at 82% in March and 80% in December. For more detailed information, visit San Jose weather in December.

Compare San Jose's Climate with Cities Worldwide

Conclusion: What to Expect From March Weather in San Jose

March in San Jose stands as a transitional month, gently bridging the gap between the chill of winter and the warmth of spring. With noticeably higher temperatures compared to the cooler winter months, residents can enjoy pleasant days, though nights may still dip to brisk lows. The increased precipitation, while frequent, is a refreshing change that nourishes the blossoming flora. At 82% humidity, the air feels more vibrant, enhancing the experience of the city's blooming landscape. For those curious about the broader patterns and shifts in San Jose's weather, visit San Jose Climate for a comprehensive overview.