Last updated: August 21, 2025
September in Odawara, Japan marks a transition into the cooling embrace of autumn, with temperatures ranging from a minimum of 17°C (63°F) to a maximum of 30°C (87°F), resulting in an average temperature of 23°C (74°F). This month also brings significant rainfall, with 235 mm (9.3 inches) of precipitation over 19 days, leading to an impressive humidity level of 86%. Visitors can expect a mix of warm, humid days and sporadic downpours, making it essential to prepare for changing weather while enjoying the stunning natural beauty of this coastal city.
In September, Odawara enjoys a gentle transition as summer begins to wane, with temperatures reflecting a balance between warmth and the early hints of autumn. The minimum temperature settles at a comfortable 17°C (63°F), while the average climbs to a pleasant 23°C (74°F), reaching a peak of 30°C (87°F) on the warmest days. This month marks a subtle decline from the scorching highs of August, creating a refreshing atmosphere ideal for outdoor activities. As the days grow shorter and the air crispens, visitors can experience vibrant autumn foliage, making September an ideal time to explore the natural beauty of this captivating region.
In September, Odawara experiences a significant uptick in rainfall, with 235 mm (9.3 in) of precipitation recorded over 19 days. This marks it as one of the wetter months, just shy of the peak rainfall seen in October. Notably, September's precipitation outstrips its late summer counterpart, August, which sees only 159 mm (6.2 in). The onset of autumn transforms the weather patterns, bringing more consistent rain that helps nourish the lush landscapes of the region. Overall, the trend indicates a gradual increase in precipitation as summer gives way to the more dynamic and wetter conditions of fall.
As autumn begins to unfold in Odawara, Japan, the humidity in September averages a comfortable 86%, marking a slight decrease from the intense summer months of July and August, which peak at 93% and 90%, respectively. This transition reflects a gradual shift in weather patterns as the oppressive highs of summer give way to milder conditions. Interestingly, September's humidity still surpasses the spring months, such as March and April, which hover around 70% to 74%. The trend reveals that while humidity remains significant as summer fades, it starts to moderate, setting the stage for the cooler, drier months ahead. This ebb and flow of moisture in the air not only affects the weather but also influences the rich, natural beauty that characterizes Odawara’s landscape during this time of year.
As summer transitions into autumn, September in Odawara, Japan, presents a UV Index of 10, placing it in the very high exposure category. This signals a continued need for sun protection as burn times remain at a brisk 15 minutes—a trend mirrored from the peak of summer, where the UV Index reached its zenith at 12 in July. Although slightly cooler temperatures begin to set in as autumn approaches, the UV intensity remains significant compared to the preceding months. To stay safe while enjoying the outdoors during this transition, it's essential to be mindful of sun exposure. For more detailed insights, visit Odawara UV Index.
UV Risk Categories
September in Odawara, Japan, sees a delightful 241 hours of sunshine, marking a slight decline from the summer peak of 293 hours in August. This month's sunshine is part of a broader trend, as the region typically experiences its brightest moments from May through August, with hours gradually tapering off as autumn approaches. While sunlight diminishes from the summer months, September still provides a lovely balance, inviting residents and visitors alike to enjoy the last warm whispers of summer before the cooler days set in. With the transition to October, when sunshine drops to 205 hours, September offers a final chance to bask in the golden rays, perfect for leisurely outdoor activities amid the stunning autumnal scenery.
As September arrives in Odawara, Japan, the likelihood of sunny weather dips to 27%, making it one of the cloudier months of the year. This trend continues from the high summer months of July and August, where the chances of enjoying a sunny day hover around 32% and 34%, respectively. While the sun hasn't shone as brightly throughout the summer, October brings a slight improvement with a 44% chance of sunny days. It's clear that although September might not offer the sunniest skies, the return to clearer weather in October provides a glimmer of hope for those craving a touch of sunlight after the warmer months.
As September unfolds in Odawara, Japan, the days begin to shorten, offering 12 hours of daylight—a gentle transition from the vibrant, sun-drenched summer months. Following a peak of 14 hours in June and July, daylight gradually recedes, mirroring the approach of autumn. This month acts as a bridge, with daylight slightly waning from 13 hours in August, yet still abundant compared to the shorter days ahead in October and November, which offer just 11 and 10 hours, respectively. The rhythmic ebb and flow of sunlight not only marks the changing seasons but also invites residents and visitors alike to savor the remaining warmth and illumination before the days dwindle further into winter.
As September rolls in, Odawara experiences a comforting shift in its weather patterns, characterized by a steady breeze with an average wind speed of 4.0 m/s (9 mph). This gentle wind mirrors the consistency seen throughout the year, with speeds remaining relatively stable from spring through fall. After the lighter breezes of summer, which saw a dip to 2.6 m/s in July, September's winds return to the familiar pace of earlier months, preparing the landscape for the cooler autumn days ahead. This trend of moderate winds not only enhances the charm of the season but also invites residents and visitors alike to enjoy the scenic outdoors while preparing for the tranquil winter whispers to come.
Weather in Odawara varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Odawara, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present stark contrasts in weather patterns. In September, temperatures range from a mild 17°C (63°F) at night to a warm 30°C (87°F) during the day, accompanied by high humidity levels of 86% and significant rainfall, totaling 235 mm over 19 days. In contrast, January delivers a much chillier experience with temperatures dipping to a minimum of 0°C (32°F) and peaking at 17°C (63°F). This month is significantly drier, with only 69 mm of precipitation falling over just 7 days and a lower humidity of 76%. For those interested in a deeper look at the typical weather conditions, you can explore Odawara weather in January.
September and February present stark contrasts in weather conditions. In September, temperatures range from a mild 17°C (63°F) to a warm 30°C (87°F), with an average of 23°C (74°F), making it one of the warmer months. However, it also experiences significant rainfall, totaling 235 mm (9.3 in) over 19 days, coupled with high humidity at 86%. In contrast, February is much cooler, with minimum temperatures dropping to 1°C (33°F) and maximums reaching only 17°C (63°F), resulting in an average of 7°C (45°F). Precipitation in February is notably lower at 75 mm (3.0 in) over just 10 days, and humidity decreases to 74%. For a more detailed look at the weather in February, check out Odawara weather in February.
September and March offer contrasting weather conditions, reflective of their seasonal transitions. In September, temperatures range from a minimum of 17°C (63°F) to a maximum of 30°C (87°F), with an average of 23°C (74°F), creating a warm and humid atmosphere with high humidity levels at 86%. On the other hand, March experiences much cooler temperatures, with a minimum of 2°C (36°F) and a maximum of 19°C (67°F), averaging only 10°C (51°F). Precipitation in September is higher, totaling 235 mm (9.3 in) over 19 days, compared to March's 195 mm (7.7 in) over 14 days. For more detailed information on March weather, visit Odawara weather in March.
In comparing the weather between September and April, it’s clear that September is notably warmer, with average temperatures ranging from a minimum of 17°C (63°F) to a maximum of 30°C (87°F), while April presents a cooler climate with temperatures starting at 4°C (40°F) and peaking at 22°C (72°F). September also experiences higher precipitation, receiving 235 mm (9.3 in) over 19 days compared to April's 162 mm (6.4 in) over 13 days. Additionally, humidity levels in September reach 86%, making it feel more humid and sweltering compared to April's 74%, which adds to the crispness of the spring air. For more specific insights, you can check Odawara weather in April.
September and May present contrasting weather conditions. In September, temperatures range from a minimum of 17°C (63°F) to a maximum of 30°C (87°F), with an average of 23°C (74°F). This month is characterized by high humidity at 86% and significant rainfall, totaling 235 mm (9.3 in) over 19 days. In contrast, May boasts milder temperatures, with a minimum of 10°C (51°F), an average of 18°C (64°F), and a maximum of 25°C (76°F). Additionally, May sees less precipitation, at 166 mm (6.5 in) across 12 days, and slightly lower humidity at 81%. For a detailed look at the weather specifics for May, visit Odawara weather in May.
In comparing the weather between September and June, we see notable differences in temperature and precipitation. September generally experiences warmer temperatures, with a minimum of 17°C (63°F) and a maximum of 30°C (87°F), compared to June's milder range of 15°C (60°F) to 27°C (81°F). Additionally, September is slightly wetter, with 235 mm (9.3 in) of precipitation over 19 days, while June sees 224 mm (8.8 in) over 16 days. Both months have high humidity levels, with September at 86% and June slightly higher at 88%. For more details on June weather, you can check Odawara weather in June.
In comparing the weather of September and July, both months exhibit relatively warm temperatures, with September featuring a minimum of 17°C (63°F), an average of 23°C (74°F), and a maximum of 30°C (87°F). In contrast, July's temperatures are slightly higher with a minimum of 18°C (65°F), an average of 24°C (76°F), and a maximum of 30°C (85°F). However, September tends to be wetter, with 235 mm (9.3 in) of precipitation over 19 days compared to July's 263 mm (10.3 in) for the same number of days. Humidity levels are also noteworthy, as September has an average humidity of 86%, whereas July is more humid at 93%. For a closer look at the weather specifics for July, you can explore Odawara weather in July.
When comparing the weather in September to that of August, September experiences slightly cooler temperatures, with minimums around 17°C (63°F) and an average of 23°C (74°F) compared to August's minimum of 20°C (68°F) and average of 26°C (80°F). While both months are similar in terms of maximum temperatures, September generally has higher precipitation levels, totaling 235 mm (9.3 in) over 19 rainy days, whereas August receives 159 mm (6.2 in) over 15 days. Humidity remains relatively high in both months, with September at 86% and August slightly higher at 90%. For a closer look at August weather specifics, you can visit Odawara weather in August.
September and October exhibit distinct differences in weather patterns. In September, temperatures are generally warmer, with a minimum of 17°C (63°F) and an average high of 30°C (87°F), while October sees a drop, with a minimum of 11°C (53°F) and a maximum of 27°C (80°F). Both months experience substantial rainfall but October receives even more, accumulating 346 mm (13.6 in) compared to September's 235 mm (9.3 in), despite similar precipitation days at 19. Humidity levels remain high in both months, slightly decreasing from 86% in September to 83% in October. For more details on October weather, you can check Odawara weather in October.
September typically experiences warmer weather with average temperatures ranging from 17°C (63°F) to a maximum of 30°C (87°F), while November sees a significant drop, with average temperatures between 4°C (40°F) and 21°C (70°F). Additionally, September is much wetter, bringing about 235 mm (9.3 in) of rain over 19 days, compared to November's 115 mm (4.5 in) over just 13 days. Humidity is also higher in September at 86%, while November has a slightly lower humidity level of 80%. For a detailed look at the weather conditions in November, you can visit Odawara weather in November.
In September, the weather is warm and humid, with average temperatures ranging from a comfortable 17°C (63°F) at night to a high of 30°C (87°F) during the day. The month is quite rainy, experiencing significant precipitation of 235 mm (9.3 in) over 19 days, leading to an average humidity level of 86%. In stark contrast, December brings cooler temperatures, with a minimum of 1°C (34°F) and an average of 9°C (49°F), peaking at a mild 20°C (68°F). Precipitation in December is much lighter, totaling only 91 mm (3.6 in) over just 11 days, and the humidity drops to a more comfortable 78%. For more details on the December climate, you can check this link: Odawara weather in December.
As September arrives in Odawara, the weather begins its gentle transition, offering a unique blend of warmth and humidity that sets it apart from the summer months. With average temperatures around a pleasant 23°C (74°F) and occasional peaks at 30°C (87°F), the heat lingers but starts to cool, making outdoor activities enjoyable. However, with frequent rainfall across 19 days, the month sees significant humidity levels at 86%, creating a lush, vibrant environment. This combination of warm days and wet weather heralds the approach of autumn, enriching the landscape and offering a refreshing contrast to the dry summer heat. For a deeper look into the climate trends and patterns of this picturesque region, visit Odawara Climate.