Last updated: February 24, 2025
September in Seaside, United States, offers a delightful climate with an average temperature of 27°C (81°F), peaking at a maximum of 32°C (90°F) during the warmest days. As summer transitions to fall, visitors can expect a refreshing dip in temperatures, with minimums around 19°C (66°F). However, this month also sees approximate precipitation of 201 mm (7.9 in) over about 13 days, contributing to a humidity level of 79% that keeps the air pleasantly moist. Whether you're soaking up the sunshine or enjoying the coastal charm amidst occasional showers, September in Seaside presents an enticing blend of warmth and rejuvenating breezes.
In September, Seaside, United States, welcomes the waning warmth of summer, with temperatures averaging 27°C (81°F) and peaking at a delightful 32°C (90°F). The month starts off fairly mild, with minimum temperatures around 19°C (66°F), providing a comfortable atmosphere perfect for beach activities and outdoor explorations. This transitional period marks a gradual shift from the hotter days of August, where temperatures often reached up to 32°C (89°F), to the cooler, crisp days of autumn. As the season progresses into October, the warmth begins to retreat, making September a wonderful time to relish the lingering summer vibes before the cooler months set in.
September sees Seaside, United States, wrapped in a cloak of moisture, with precipitation peaking at 201 mm (7.9 in)—the second highest for the year. This month continues the trend of increased rainfall, following its predecessor, August, which recorded an impressive 202 mm (8.0 in). Despite the drop in total precipitation, September maintains a significant level with 13 rainy days, contributing to a lush environment as the summer transitions to autumn. The pattern of wetter months from June through September highlights a seasonal shift that enriches the coastal landscape, offering a picturesque mix of vibrant flora amidst the rhythmic sound of ocean waves and rain.
As summer transitions into fall, September in Seaside, United States, sees humidity levels settle at 79%, slightly above the diminishing summer averages yet lower than the peak levels experienced in July and August. This month marks a gradual return to the higher humidity typical of the cooler months, as residents prepare for the approaching autumn. Over the year, humidity has shown a clear trend: starting high in the winter months, it dips to a comfortable low in the summer only to rise again as autumn approaches. With September's levels falling in line with the annual pattern, it highlights the seasonal shifts that define Seaside's unique coastal climate.
As summer transitions into fall in Seaside, United States, the UV Index begins to drop but remains notably high in September, registering at 10—indicating a very high exposure category with a burn time of just 15 minutes. This marks a slight decline from the peak levels of July, which reached a 12 with an extreme rating, signaling that while the sun's intensity is still formidable, there’s a softening as we move into the cooler months. Compared to earlier months, including April through August, which maintained extremes, September still necessitates precautions against sun exposure. To stay informed about UV levels throughout the year, check the detailed information at Seaside UV Index.
UV Risk Categories
As summer gently fades, September in Seaside, United States brings a delightful balance of warmth and sunshine, boasting 287 hours of bright skies. This marks a slight decline from the peak summer months, where July and May shine with over 329 and 333 hours respectively. Despite this decrease, September still surpasses the early winter months, showcasing the region's prolonged sunny spells. The transition from summer to fall is evident as daylight hours gradually recede, but the lingering warmth makes this month an ideal time for outdoor pursuits. Residents and visitors alike can relish the vibrant coastal atmosphere while soaking in the sun’s embrace before the cooler months approach.
In Seaside, United States, the likelihood of sunny weather in September hovers around 40%, offering a moderate chance for clear skies as summer transitions into fall. Although this percentage is slightly lower than the more sun-drenched months of April and May, it shows a gradual recovery from the typically overcast summer months of June and July, which dip to 27% and 25%, respectively. As autumn approaches, the chances of sunshine begin to climb once again, becoming more favorable as the year progresses towards October and November, which boast much higher probabilities of sunny days. This trend indicates that while September might not be the sunniest month, it certainly positions itself as a bridge to brighter fall days ahead.
As September rolls into Seaside, the days begin to shorten, signaling the transitions of the season. After basking in the longest days of summer, with 14 hours of daylight in June, the daylight gradually decreases to 12 hours by September. This month marks a delicate balance between the warmth of summer and the impending coolness of autumn. While the daylight hours are still generous, they pale in comparison to the vibrant light of the preceding months. As the year progresses toward October, the gentle shift in daylight serves as a reminder of nature’s rhythms and prepares residents for the cozy evenings ahead.
As summer fades into autumn, September in Seaside, United States, sees a decline in average wind speed, dropping to 4.0 m/s (9 mph). This marks a notable shift from the more breezy months of the year; July finds a lull at 3.8 m/s (8 mph), while the previous summer months maintain stronger winds. The trend clearly shows the transition towards a calmer atmosphere as the year progresses, with September's winds softer than the spring and earlier summer months. However, a resurgence is on the horizon, as October picks up to 5.0 m/s (11 mph), signaling a return to more spirited breezes. This gentle ebb and flow of winds reflects the rhythm of the seasons, offering a tranquil yet dynamic coastal experience.
The weather in Seaside changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Seaside and find detailed weather information for every month.
September and January showcase stark contrasts in weather. September typically experiences warmer temperatures, with a minimum of 19°C (66°F) and an average high of 32°C (90°F), while January's temperatures are much cooler, dipping to a minimum of -1°C (31°F) and peaking at 23°C (73°F). In terms of precipitation, September is considerably wetter, receiving 201 mm (7.9 in) over approximately 13 days, compared to January’s 90 mm (3.6 in) across just 8 days. Humidity levels remain relatively high in both months, with September at 79% and January slightly higher at 83%. For a detailed look at January weather, check out Seaside weather in January.
In comparing the weather of September and February, a noticeable contrast emerges in temperature and precipitation. September boasts warmer temperatures, with a minimum of 19°C (66°F) and an average high reaching 32°C (90°F), while February sees much cooler temperatures, ranging from a minimum of 2°C (35°F) to a maximum of 22°C (72°F). Precipitation patterns also differ significantly; September experiences higher rainfall at 201 mm (7.9 in) over 13 days, compared to February's 117 mm (4.6 in) across just 9 days. Humidity remains relatively high in both months, with February slightly edging out at 82% versus September's 79%. For more detailed insights, you can check Seaside weather in February.
September and March present striking contrasts in weather patterns. September enjoys warmer temperatures, with average highs reaching 32°C (90°F) and abundant rainfall of 201 mm (7.9 in) over 13 days, creating a humid atmosphere with 79% humidity. In contrast, March features a cooler climate, characterized by average highs of 25°C (77°F) and significantly less precipitation, totaling 62 mm (2.4 in) over just 7 days. Despite both months maintaining a humidity level of 79%, March offers a refreshing break from the summer heat, making it a more temperate option for outdoor activities. For those interested in specific seasonal details, check out Seaside weather in March.
September and April offer distinct weather experiences. September tends to be warmer, with average temperatures around 27°C (81°F) and maximums reaching up to 32°C (90°F), while April sees milder conditions, with average temperatures of 20°C (68°F) and maximums of 24°C (76°F). Additionally, September is much wetter, experiencing approximately 201 mm (7.9 in) of rainfall over 13 days compared to April's 123 mm (4.8 in) of precipitation across 9 days. Both months exhibit high humidity levels, with September at 79% and April slightly lower at 77%. For more details on weather in coastal areas during April, check out Seaside weather in April.
In comparing the weather of September and May, September tends to be warmer and more humid, with average temperatures reaching 27°C (81°F) and highs peaking at 32°C (90°F). In contrast, May has a milder average temperature of 24°C (75°F) and maximums of 29°C (84°F). Additionally, September sees significantly more rainfall, with 201 mm (7.9 in) over 13 days, compared to just 85 mm (3.3 in) across 8 days in May. Humidity levels are also a bit higher in September at 79%, while May maintains a slightly lower average at 74%. For those interested in more details, you can check out Seaside weather in May.
In comparing the weather between September and June, both months exhibit warm average temperatures, with June having a slightly higher minimum temperature of 22°C (72°F) compared to September's 19°C (66°F). The average temperatures remain similar, with September's average at 27°C (81°F) and June's at 27°C (80°F). However, September experiences more precipitation, totaling 201 mm (7.9 in) over 13 days, compared to June's 172 mm (6.8 in) over 15 days. Additionally, the humidity level in September is higher at 79%, while June maintains a slightly lower humidity of 70%. For those interested in more details on seaside weather, check out Seaside weather in June.
In comparing the weather for September and July, one can see distinct differences in temperature and precipitation. September boasts a minimum temperature of 19°C (66°F), averaging 27°C (81°F) and peaking at 32°C (90°F). In contrast, July remains warmer with a minimum of 25°C (76°F), averaging slightly higher at 28°C (82°F) and reaching a maximum of 31°C (87°F). Precipitation is notably higher in September, with 201 mm (7.9 in) spread over 13 days, compared to July's 139 mm (5.5 in) over 20 days. Humidity levels remain relatively similar, with September at 79% and July at 78%. For more details on July weather specifically, you can visit Seaside weather in July.
In comparing September and August weather, September sees a slight decrease in average temperatures, with a minimum of 19°C (66°F) and an average of 27°C (81°F), compared to August's warmer minimum of 24°C (75°F) and average of 28°C (83°F). Both months experience similar high temperatures, peaking at around 32°C (90°F) in September and 32°C (89°F) in August. However, September is characterized by increased rainfall, with 201 mm (7.9 in) over 13 days, while August has 202 mm (8.0 in) distributed over 21 days, indicating that August is slightly wetter despite having similar total precipitation. Humidity levels are comparable, with September at 79% and August at 78%. For more details on specific conditions, check out Seaside weather in August.
In September, the weather is characterized by warm temperatures, with a minimum of 19°C (66°F) and an average of 27°C (81°F), peaking at 32°C (90°F). This month experiences significant rainfall, totaling 201 mm (7.9 in) over 13 days, coupled with high humidity levels at 79%. In contrast, October ushers in cooler temperatures, with a minimum of 10°C (50°F) and an average of 24°C (76°F), while the maximum reaches 30°C (86°F). The month sees reduced precipitation, totaling 132 mm (5.2 in) over 9 days, and slightly lower humidity at 74%. This shift from September to October marks a transition towards more comfortable fall weather. For those interested in more detailed patterns, check out Seaside weather in October.
September and November present a stark contrast in weather conditions. September typically boasts warmer temperatures, with minimums around 19°C (66°F) and maximums reaching up to 32°C (90°F), alongside high humidity at 79%. This month also experiences significant rainfall, totaling 201 mm (7.9 in) over approximately 13 days. In contrast, November cools down substantially, with temperatures dropping to a minimum of 5°C (41°F) and a maximum of 26°C (80°F). Precipitation is much lighter, averaging just 45 mm (1.8 in) across 6 days, while humidity rises slightly to 83%. Overall, September feels much warmer and wetter compared to the cooler, drier November. For more specific details on weather conditions, you can refer to Seaside weather in November.
September weather features warmer temperatures, with minimums around 19°C (66°F) and maximums reaching 32°C (90°F), accompanied by higher precipitation levels of 201 mm (7.9 in) over 13 days and an average humidity of 79%. In contrast, December brings much cooler conditions, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 23°C (73°F). Although December experiences slightly less rainfall at 159 mm (6.2 in) over 11 days, humidity remains higher at 86%. For more insights into the conditions during this month, check out Seaside weather in December.
As September unfolds in Seaside, it brings a unique blend of warmth and occasional rain, setting it apart from the drier summer months. With average temperatures reaching a comfortable 27°C (81°F), it's perfect for beachside lounging, yet the 79% humidity reminds visitors of the lingering summer feel. The month sees an increase in precipitation, with 13 rainy days contributing to a total of 201 mm of rain, offering revitalizing breaks to the sun-drenched days. This shift not only refreshes the landscape but also opens the door for vibrant fall blooms. For more insights on what to expect during this transitional month, check out the full details at Seaside Climate.