Last updated: February 24, 2025
Experience the variable charm of Half Moon Bay in March, where temperatures gracefully range from a crisp minimum of 7°C (44°F) to a comfortable maximum of 19°C (67°F). The month offers an average temperature of 12°C (53°F), perfect for coastal adventures and exploring the stunning scenery. With 77 mm (3.0 in) of precipitation spread over 11 days, the area is adorned with lush greenery, making it a picturesque time for nature lovers. The humidity level sits at a notable 82%, adding a fresh, invigorating atmosphere that enhances the coastal experience. Whether you're strolling along the beach or enjoying local attractions, March in Half Moon Bay promises a delightful blend of weather and natural beauty.
In March, Half Moon Bay experiences a subtle rise in temperatures, marking the transition from winter into spring. With minimums averaging around 7°C (44°F) and maximums peaking at 19°C (67°F), the weather is generally mild, perfect for outdoor exploration. The average temperature nudges slightly higher to 12°C (53°F), reflecting the gradual warmth that starts to define the season. Compared to the preceding months, March offers a refreshing change with slightly longer, sunnier days, inviting visitors and locals alike to indulge in the natural beauty of the coastline. The shift in temperatures hints at the vibrant blooming that awaits in April, making it an ideal time to enjoy the scenic charm of this coastal gem.
March in Half Moon Bay sees a noticeable dip in precipitation, accumulating 77 mm (3.0 in) over 11 days, compared to the wetter months of January and February. This reduction marks a significant transition towards the drier spring months, as rainfall dramatically decreases in April to just 34 mm (1.3 in). The trend of declining rain continues into May and June, indicating the approach of the dry season. By the time summer arrives, rainfall is rare, with only a trace amount recorded from July to September, highlighting a clear seasonal pattern in precipitation throughout the year in this coastal region.
March in Half Moon Bay sees a humidity level of 82%, consistent with February's figures, indicating a stable, slightly damp atmosphere as the region transitions from winter to spring. This moderate humidity level reflects a trend of gradual decrease from the chilly January peak of 85%. As spring unfolds, the humidity continues to dip slightly into April, eventually reaching its lowest point in the spring months. However, it’s worth noting that this trend flips as summer approaches, with humidity levels climbing again starting in May. Overall, March's humidity contributes to the area's verdant landscapes, underscoring its characteristic coastal charm.
As March arrives in Half Moon Bay, the UV Index escalates dramatically to 8, marking a shift to the very high exposure category with a burn time of just 15 minutes. Following a steady increase from January's moderate levels, this uptick is indicative of the approaching spring and summer months, which traditionally bring higher UV radiation. In fact, both April and May maintain this intensity, reaching UV Index peaks of 9 and 10 respectively. This trend highlights the importance of sun safety awareness, as residents and visitors must adapt their outdoor activities to minimize UV exposure. For more insights on UV levels throughout the year, explore the Half Moon Bay UV Index.
UV Risk Categories
March marks a delightful transition in Half Moon Bay, as the days grow longer and the sun graces the town with 263 hours of bright, invigorating light. This increase from February's 216 hours signals the start of a vibrant spring, setting the stage for what lies ahead. As we glance toward April and May, the sunshine continues to rise dramatically, peaking at 341 hours in May. This upward trend leads into the summer months, where the sun shines most brilliantly, with June boasting a remarkable 355 hours. It is clear that March not only captures the essence of emerging warmth but also heralds the promise of even more glorious days ahead in the stunning coastal landscape of Half Moon Bay.
As March rolls in, Half Moon Bay shows a promising 60% chance of sunny weather, marking a noticeable uptick compared to the earlier months of the year. This increase in sunshine is particularly inviting after the gloomier January and December, which lingered around 39% and 35% respectively. While February begins to hint at better weather with 56%, March solidifies this trend, offering residents and visitors alike a delightful opportunity to enjoy the coastal beauty. Interestingly, the likelihood of sunshine dips again in April to 44%, suggesting that March might just be the sweet spot for those looking to bask in the sun before the clouds return.
As March unfolds in Half Moon Bay, the days noticeably stretch out, offering an inviting 11 hours of daylight. This gradual increase marks a clear transition from the shorter winter months of January and February, where daylight lingered just 9 and 10 hours, respectively. With each passing week, the sun shines longer, hinting at the warmth of spring and the promise of summer. This trend continues into April and May, as daylight peaks at 14 hours, creating a perfect backdrop for outdoor activities. By recognizing these shifting patterns, residents and visitors can fully embrace the lengthening days, heralding the vibrant energy of spring.
In Half Moon Bay, March greets residents and visitors with a pleasant average wind speed of 4.2 m/s (9 mph), a slight dip from February's 4.3 m/s (10 mph). As winter gives way to spring, the winds gradually pick up momentum, hinting at the coming increase in speed seen in April and May, when they reach their peak at 5.4 m/s (12 mph). This gentle breeze in March creates an inviting atmosphere for outdoor activities, allowing the stunning coastal views to shine while maintaining a comfortable environment. The overall trend suggests that as the year unfolds, winds tend to become more robust, particularly in the spring months, while the summer brings a calm before the cycle starts anew in the fall.
The weather in Half Moon Bay 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 Half Moon Bay and find detailed weather information for every month.
When comparing the weather in March to that of January, we can see some subtle differences. March experiences slightly warmer temperatures with a minimum of 7°C (44°F) and a maximum of 19°C (67°F), while January has a minimum of 5°C (41°F) and a maximum of 20°C (68°F). Both months have similar average temperatures, around 12°C (53°F) in March and 11°C (53°F) in January. In terms of precipitation, March has 77 mm (3.0 in) over 11 days, which is less than January's 102 mm (4.0 in) spread over 9 days, indicating that January is typically wetter. Humidity levels are slightly lower in March at 82% compared to 85% in January. For more details, you can check out Half Moon Bay weather in January.
In comparing the weather from February to March, we see that March generally offers slightly warmer temperatures with a minimum of 7°C (44°F), compared to February's 5°C (41°F). The average temperatures remain consistent, with both months hovering around 12°C (53°F). However, March experiences a maximum of 19°C (67°F), which is marginally cooler than February's peak of 20°C (69°F). Precipitation levels decrease in March to 77 mm (3.0 in) over 11 days, while February is wetter at 101 mm (4.0 in) across 9 days. Interestingly, both months share the same humidity level of 82%. For more detailed insights, you can check Half Moon Bay weather in February.
When comparing the weather of March and April, it's clear that April ushers in warmer temperatures and significantly less precipitation. In March, temperatures range from a minimum of 7°C (44°F) to a maximum of 19°C (67°F), with an average of 12°C (53°F) and a notable 77 mm of precipitation over 11 days at a humidity level of 82%. In contrast, April experiences a similar minimum temperature of 7°C (45°F), but the maximum rises considerably to 25°C (78°F), with the average also increasing to 12°C (55°F). Additionally, April sees just 34 mm of rain over 5 days, resulting in a slightly lower humidity of 79%. For more specific information about weather conditions in April, you can refer to Half Moon Bay weather in April.
When comparing the weather between March and May, March tends to be cooler with average temperatures ranging from a minimum of 7°C (44°F) to a maximum of 19°C (67°F). It also sees more precipitation, with an average of 77 mm (3.0 in) falling over about 11 days, creating a relatively humid atmosphere at 82%. In contrast, May experiences slightly warmer temperatures, with a minimum of 9°C (48°F) and a maximum of 21°C (69°F). Additionally, May is much drier, featuring only 22 mm (0.9 in) of rain over just 2 days, while humidity remains relatively stable at 83%. For more specifics on the weather in May, check out Half Moon Bay weather in May.
March and June present contrasting weather patterns. In March, temperatures range from a minimum of 7°C (44°F) to a maximum of 19°C (67°F), with an average of 12°C (53°F). This month also sees significant precipitation, with about 77 mm (3.0 in) falling over 11 days and humidity at a notable 82%. In contrast, June features warmer temperatures, with a minimum of 10°C (51°F) and a maximum of 27°C (81°F), averaging 15°C (58°F). Precipitation dramatically decreases to just 4 mm (0.2 in) across 0 days, with humidity slightly higher at 84%. For more details on June weather, you can visit Half Moon Bay weather in June.
In March, temperatures range from a minimum of 7°C (44°F) to a maximum of 19°C (67°F), with an average of 12°C (53°F). This month experiences considerable rainfall, totaling 77 mm (3.0 in) over about 11 days, resulting in a relatively high humidity level of 82%. In contrast, July sees slightly warmer temperatures with minimums of 11°C (51°F) and maximums reaching 20°C (69°F). Remarkably, July is much drier, receiving only 3 mm (0.1 in) of precipitation and typically having no rainy days, with humidity slightly higher at 87%. For more specific insights, check out Half Moon Bay weather in July.
March typically experiences a cooler climate, with average temperatures ranging from a minimum of 7°C (44°F) to a maximum of 19°C (67°F) and an average of 12°C (53°F). The month is also quite rainy, with about 77 mm (3.0 in) of precipitation over 11 days, contributing to a relatively high humidity level of 82%. In contrast, August is warmer, showcasing a minimum temperature of 11°C (53°F) and a maximum of 24°C (76°F), with an average of 16°C (61°F). Notably, August is much drier, with only 3 mm (0.1 in) of precipitation and no rainy days, resulting in a slightly higher humidity of 87%. For more detailed insights into the weather during this month, you can refer to Half Moon Bay weather in August.
March and September showcase contrasting weather patterns, with March characterized by cooler temperatures, averaging around 12°C (53°F) and maximums reaching only 19°C (67°F). This month experiences a considerable amount of precipitation, with about 77 mm (3.0 in) falling over 11 days, and humidity levels at 82%. In contrast, September boasts warmer temperatures, with averages of 16°C (62°F) and peaks soaring to a more comfortable 31°C (88°F). Remarkably, September enjoys significantly less precipitation, totaling just 3 mm (0.1 in) across zero rainy days, while humidity is slightly higher at 86%. For more details, you can check Half Moon Bay weather in September.
March and October present distinct weather patterns that reflect the transition between seasons. In March, temperatures range from a minimum of 7°C (44°F) to a maximum of 19°C (67°F), with an average of 12°C (53°F). The month experiences significant precipitation, totaling 77 mm (3.0 in) over approximately 11 days, resulting in a relatively humid atmosphere with 82% humidity. In contrast, October offers milder temperatures, with minimums of 9°C (49°F) and maximums reaching 27°C (80°F); the average temperature sits at 15°C (60°F). Notably, October sees much less rainfall, with only 27 mm (1.1 in) over just 2 days, and humidity levels remain fairly consistent at 80%. For more details, check out Half Moon Bay weather in October.
March and November in Half Moon Bay exhibit some notable differences in weather patterns. In March, the temperatures range from a minimum of 7°C (44°F) to a maximum of 19°C (67°F), with an average temperature of 12°C (53°F). This month experiences higher precipitation levels, totaling 77 mm (3.0 in) over approximately 11 days, and humidity levels are relatively high at 82%. In contrast, November offers slightly warmer conditions, with temperatures ranging from 7°C (45°F) to 21°C (70°F) and an average of 13°C (56°F). Additionally, November sees less rainfall, with only 48 mm (1.9 in) spread over about 5 days and a humidity level of 79%. For more details on November's specific climate characteristics, check out Half Moon Bay weather in November.
In comparing the weather of March and December, both months share similar temperature ranges, with a minimum of around 6-7°C (44°F), an average of 12°C (53°F), and a maximum reaching up to 19°C (67°F). However, December tends to be slightly wetter, receiving an average of 92 mm (3.6 in) of precipitation over about 10 days, compared to March's 77 mm (3.0 in) over 11 days. Humidity levels are also a bit higher in March at 82%, while December experiences a slightly lower humidity of 79%. For more detailed insights, you can check Half Moon Bay weather in December.
As March unfolds in Half Moon Bay, residents and visitors experience a noticeable shift in weather patterns compared to the preceding winter months. The days grow warmer, with temperatures gently rising, bringing a mild climate that invites outdoor exploration. However, March is also characterized by increased rainfall, with a significant number of precipitation days, making it one of the wetter months of the year. The humidity remains high, lending a refreshing feel to the air as nature begins to awaken. For a deeper understanding of how March fits into the broader climate context of this coastal gem, visit Half Moon Bay Climate.