Last updated: February 24, 2025
In September, Pacific Grove, United States enjoys a delightful climate characterized by a maximum temperature of 29°C (84°F) and a comfortable average of 15°C (59°F). Nights cool down to a minimum of 12°C (54°F), creating a pleasant range for outdoor activities. With virtually no precipitation, recording only 4 mm (0.2 in) across the month, visitors can relish in the crisp, sunny days under a backdrop of 55% humidity. This idyllic weather makes September an ideal time to explore the natural beauty and charm of Pacific Grove.
September marks a vibrant transition in Pacific Grove, showcasing a delightful uptick in temperatures as summer softly gives way to fall. With minimums starting at a comfortable 12°C (54°F) and peaking at a sizzling 29°C (84°F), this month presents the warmest maximum temperatures of the year. The average temperature hovers around 15°C (59°F), making it a pleasant time to enjoy outdoor activities. Unlike the preceding months, which are characterized by cooler highs, September's warmth invites both residents and visitors to bask in the sun while the ocean breeze offers a refreshing reprieve. This dynamic change sets the stage for cozy evenings and scenic sunsets, capturing the essence of Pacific Grove's inviting climate.
September in Pacific Grove marks the tail end of the dry summer season, as indicated by its minimal precipitation of just 4 mm (0.2 in) over the course of the month, with no recorded rainy days. This trend of low rainfall is notable compared to the wetter winter months, which can see upwards of 112 mm (4.4 in) in January. The contrast between September's dry conditions and the preceding months of summer—with hardly any rain—highlights the region's seasonal climate shifts. As the year progresses into October and November, precipitation begins to pick up, setting the stage for the wetter months ahead that can bring substantial rainfall, underscoring the overall seasonal variability inherent in Pacific Grove's climate.
As September rolls into Pacific Grove, the coastal air remains crisp and refreshing, with humidity levels dipping to a comfortable 55%. This slight decrease follows the trend of the summer months, where July and August showcase the lowest humidity levels of the year at 58% and 54%, respectively. The shift from the drier summer into the more humid fall is gradual, as October brings an uptick to 62%, ushering in the season's signature coastal mist. Overall, September's humidity marks a pleasant transition, allowing residents and visitors to enjoy the mild climate without the discomfort of excessive moisture before the fall air begins to settle in.
In September, the UV Index in Pacific Grove remains at a striking 9, categorized as very high, indicating that sun exposure can be potentially harmful within just 15 minutes. This marks a slight decline from the peak summer months, where the index reached an extreme 11, but it still showcases the area's significant exposure to UV radiation. As autumn approaches, it's essential to remain vigilant, as the uv index trends from the extremes of summer begin to level off. Transitioning into later months, October sees a decrease to a 7, offering a more moderate risk. For comprehensive details on UV exposure throughout the year, visit Pacific Grove UV Index.
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As the summer days begin to wane, September in Pacific Grove boasts a delightful 309 hours of sunshine, a remarkable continuation of the warm glow from the peak summer months. This gradual decline, from the sizzling heights of 377 hours in July and 347 hours in August, signals the gentle shift into autumn while still embracing a generous amount of daylight. Following the vibrant spring, where sunshine reached 354 hours in May, September’s luminous days reflect a consistent trend of sunny splendor typical for this coastal gem. Although October nudges the numbers down to 287 hours, September remains a golden bridge between summer's warmth and fall's embrace, inviting both locals and visitors to savor the last rays of summer.
In Pacific Grove, September brings a noteworthy 58% chance of sunny weather, making it a promising time for outdoor activities and exploration. This marks an increase from the summer months, where sunshine likelihood dips to just 34% in July. As the seasons transition, September enjoys a boost similar to that of February and October, both of which also showcase favorable sun exposure at 58% and 62%, respectively. Overall, as the warm days of summer fade, September emerges as one of the last opportunities to bask in the sun before autumn sets in, contributing to a delightful and inviting atmosphere in this coastal gem.
As summer transitions into autumn, September in Pacific Grove brings a gradual decline in daylight duration with approximately 12 hours of sunlight each day. This marks a notable shift from the sun-drenched days of July and August, which each enjoyed around 14 hours of light. Following the peak of summer, the daylight hours start to fade, mirroring the cooling temperatures and changing foliage. As we move deeper into the fall months, this decrease continues, with October offering just 11 hours. This trend highlights the seasonal rhythm of Pacific Grove, where the lush vibrancy of summer slowly gives way to the more subdued glow of autumn.
In September in Pacific Grove, the gentle winds begin to whisper a subtle transition from summer to fall. With an average wind speed dipping to 3.3 m/s (7 mph), September experiences one of the year's calmest breezes, a noticeable shift from the stronger gusts of earlier months. After a steady rise from January's 4.6 m/s through the summer, this decline creates a serene atmosphere, perfect for leisurely strolls along the coastline. As autumn approaches, the winds begin to pick up once again in October, hinting at a return to the invigorating breezes that characterize the Pacific Grove landscape throughout the year.
The weather in Pacific Grove 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 Pacific Grove and find detailed weather information for every month.
In September, the weather is generally warmer and drier, with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 29°C (84°F) and only 4 mm (0.2 in) of precipitation over the month. The humidity sits at a comfortable 55%, making it a pleasant time to enjoy outdoor activities. In contrast, January brings cooler temperatures, with a minimum of 7°C (46°F) and a maximum of 18°C (64°F), and significantly more precipitation, tallying 112 mm (4.4 in) across approximately 10 days. The humidity in January is notably higher at 82%, creating a damp and cooler atmosphere. For more detailed insights into January weather, check out Pacific Grove weather in January.
Comparing the weather in September and February reveals distinct seasonal variations. In September, temperatures range from a mild minimum of 12°C (54°F) to a warm maximum of 29°C (84°F), with an average of 15°C (59°F). The month enjoys minimal precipitation at just 4 mm (0.2 in) and typically experiences no rainy days, contributing to a comfortable humidity level of 55%. In contrast, February sees cooler temperatures, with a minimum of 6°C (44°F) and a maximum of 18°C (65°F), averaging around 11°C (53°F). This month is notably wetter, accumulating 106 mm (4.2 in) of rain over 10 days and featuring higher humidity at 84%. These differences highlight the transition from the warm, dry conditions of late summer to the cooler, wetter atmosphere of winter. For more detailed insights, you can check Pacific Grove weather in February.
September and March present quite contrasting weather conditions. In September, temperatures typically range from a minimum of 12°C (54°F) to a maximum of 29°C (84°F), with pleasant average conditions around 15°C (59°F). The month is relatively dry, with only 4 mm (0.2 in) of precipitation and no rainy days, resulting in a humidity level of 55%. Conversely, March experiences cooler temperatures, with a minimum of 7°C (45°F) and a maximum of just 17°C (63°F), averaging 11°C (52°F). This month is much wetter, with a significant 93 mm (3.7 in) of precipitation spread over 12 rainy days, coupled with higher humidity at 82%. For a closer look at the specifics of March, you can visit Pacific Grove weather in March.
In comparing the weather of September and April, September generally offers warmer temperatures, with a minimum of 12°C (54°F) and an average of 15°C (59°F), peaking at a comfortable 29°C (84°F). In contrast, April sees cooler conditions, with minimum temperatures dipping to 8°C (47°F) and an average of only 11°C (53°F), while the maximum reaches 19°C (67°F). Additionally, September benefits from significantly less precipitation, recording just 4 mm (0.2 in) with no rainy days, whereas April experiences a much wetter climate with 35 mm (1.4 in) of rain over six days. Humidity levels also differ considerably, standing at 55% in September compared to a higher 78% in April. For more details, you can check Pacific Grove weather in April.
When comparing the weather in September to that in May, notable differences emerge. September typically enjoys warmer temperatures, with a minimum of 12°C (54°F) and a maximum reaching 29°C (84°F), while May's cooler temperatures range from a minimum of 9°C (48°F) to a maximum of 17°C (63°F). In terms of precipitation, September is quite dry, averaging only 4 mm with no rainy days, contrasting sharply with May, which sees more substantial rainfall at 26 mm over four days. Additionally, humidity levels are higher in May at 71%, compared to September's average of 55%. For more insights, visit Pacific Grove weather in May.
In September, the weather is generally warmer than in June, with average temperatures reaching 15°C (59°F) compared to June's 13°C (55°F). The maximum temperature in September can climb to 29°C (84°F), while June's maximum is more modest at 25°C (78°F). Both months experience very little precipitation, but September is slightly drier with just 4 mm (0.2 in) of rain, while June sees 5 mm (0.2 in). Humidity levels are also higher in June at 64%, compared to 55% in September, contributing to a more comfortable atmosphere in late summer. For more detailed information, check out Pacific Grove weather in June.
September weather is notably warmer than July, with average temperatures reaching 15°C (59°F) compared to July's 13°C (56°F). The maximum temperature in September can soar to a comfortable 29°C (84°F), while July's high is a much cooler 16°C (61°F). Both months experience minimal precipitation, with 4 mm (0.2 in) and no rainy days. Additionally, September has slightly lower humidity at 55%, compared to 58% in July. For more detailed insights, check out Pacific Grove weather in July.
September weather is noticeably warmer than August, with minimum temperatures remaining the same at 12°C (54°F), but averaging 15°C (59°F) compared to August's average of 14°C (58°F). The maximum temperature in September reaches 29°C (84°F), a significant increase from August's peak of 21°C (70°F). Both months experience minimal precipitation, but September boasts slightly less with only 4 mm (0.2 in) of rain, while August sees 5 mm (0.2 in). Humidity levels are also comparable, with September at 55% and August slightly lower at 54%. For more details on August's conditions, visit Pacific Grove weather in August.
September generally offers warmer temperatures compared to October, with minimums around 12°C (54°F) and maximums reaching up to 29°C (84°F). While September enjoys dry conditions with no recorded precipitation, October brings increased humidity at 62% along with some rain—totaling 21 mm (0.8 in) across two days. The overall average temperature remains the same in both months at 15°C (59°F), but the shift towards cooler highs in October (max 25°C or 77°F) indicates the encroachment of fall. For more details on October weather, you can check out Pacific Grove weather in October.
In September, the weather is generally warm and dry, with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 29°C (84°F) and an average of 15°C (59°F). With only 4 mm (0.2 in) of precipitation across zero rainy days, the humidity sits at a comfortable 55%. In contrast, November sees cooler temperatures, with a minimum of 8°C (46°F) and a maximum of 20°C (68°F), averaging around 14°C (57°F). This month is much wetter, with 42 mm (1.7 in) of rain over five days, and the humidity rises significantly to 78%. For a more detailed outlook, check out Pacific Grove weather in November.
September and December showcase distinct weather patterns. In September, temperatures range from a minimum of 12°C (54°F) to a maximum of 29°C (84°F), with an average of 15°C (59°F) and little to no precipitation. This month experiences a comfortable humidity level of 55%. In contrast, December presents cooler conditions, with temperatures dropping to a minimum of 8°C (47°F) and a maximum of 21°C (69°F), averaging 12°C (54°F). This month is also significantly wetter, accumulating 105 mm (4.1 in) of precipitation over approximately 10 days and higher humidity at 80%. For more detailed information, you can check out Pacific Grove weather in December.
As September arrives in Pacific Grove, the weather showcases a delightful transition, marked by pleasantly warm temperatures and a refreshing lack of precipitation. Unlike the chillier months that follow, September often enjoys abundant sunshine with an average temperature comfortable enough for outdoor activities, making it an ideal time for visitors and locals alike. With humidity levels holding steady at a moderate level, the air feels crisp and invigorating. This month stands out from the cooler and wetter conditions typical of late fall, inviting everyone to bask in the abundant natural beauty of the area. For more detailed insights into the climate, check out Pacific Grove Climate.