Last updated: August 21, 2025
In Hamamatsu, Japan, October presents a dynamic weather experience characterized by a maximum temperature of 32°C (89°F) and an average of 20°C (68°F), providing a warm yet comfortable ambiance. As the month progresses, temperatures dip to a minimum of 10°C (50°F), highlighting the transition into autumn. Potential visitors should be mindful of the heavy rainfall, totaling 293 mm (11.5 in) over approximately 15 days, coupled with an elevated humidity level of 83%. This blend of warmth and moisture not only enhances the vibrant autumn foliage but also invites exploration of the region’s cultural gems amid occasional showers.
In October, Hamamatsu experiences a pleasant transition into autumn, marked by milder temperatures. With minimums around 10°C (50°F) and an average of 20°C (68°F), the city begins to cool from the sweltering summer months. This month sees maximum temperatures reaching up to 32°C (89°F), still retaining some summer warmth while gracefully embracing the crispness of fall. As daylight shortens and the air turns fresher, October offers a perfect blend for outdoor enthusiasts, making it an ideal time to explore the beauty of the changing leaves and vibrant landscapes. The steady drop in temperatures compared to the sweltering highs of September signals that the cooler weather is just around the corner, inviting residents and visitors alike to enjoy the charming, seasonal shift in Hamamatsu.
In October, Hamamatsu experiences a significant shift in precipitation, with an average of 293 mm (11.5 in) of rain falling over 15 days. This marks a peak in the year, showcasing a transition from the drier summer months into the wetter autumn season. Notably, the rainfall tapers off from September's already substantial 222 mm (8.7 in) but remains noticeably high compared to the drier months of November and December. The pattern reveals that October, while not the wettest, plays a crucial role in replenishing water reserves as the region prepares for winter, emphasizing the seasonal rhythm of precipitation that characterizes Hamamatsu’s climate.
As October rolls around in Hamamatsu, Japan, the humidity settles at a notable 83%, reflecting a slight dip from the summer's peak but still higher than the spring months. The trend shows that humidity begins to rise significantly from May onwards, reaching its zenith in July with an impressive 93%, before gradually tapering off into the autumn. This transition not only marks a shift in the weather but also invites a refreshing change in the air as the city prepares for cooler temperatures. While October maintains a sense of humidity reminiscent of the summer, it signals the start of a more temperate climate, setting the stage for the crispness of November and December.
In Hamamatsu, Japan, the October UV Index registers a moderate 7, marking it as a time of high exposure. As the autumn season unfolds, residents and visitors can enjoy longer burn times of approximately 25 minutes before sunburn sets in. This transition from the extreme highs of summer, where UV levels soared to 12, shows a gradual decline in sun intensity, allowing for safer outdoor activities. Compared to the preceding months like July and August, which maintained a staggering UV Index of 11 and 12, October presents a more forgiving opportunity to bask in the sunshine. However, protect your skin and stay aware, as the UV Index remains elevated. For a deeper understanding of the UV trends throughout the year, check out the Hamamatsu UV Index.
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As autumn settles in, October in Hamamatsu, Japan, offers a gentle embrace of sunshine with 226 hours of radiant daylight. This month marks a transition from the sun-drenched warmth of August, which boasts a remarkable 317 hours, to the more moderate days of November with 241 hours. Although October's sunshine may seem diminished compared to the peak summer months, it still holds its charm, allowing for vibrant foliage and pleasant outdoor activities. This gradual shift in sunlight reflects a broader trend of diminishing hours as the year winds down, yet October's moderate sunshine invites residents and visitors alike to savor the beautiful fall landscape that Japan is renowned for.
In Hamamatsu, Japan, the likelihood of sunny weather in October stands at a relatively pleasant 53%, marking a slight increase from the summer months, where the chances dip to the low 30s. This moderate sunshine opportunity emerges as the city transitions away from the rainy season, moving towards the clearer skies of late autumn. Although October is not the sunniest month in Hamamatsu—November boasts a higher sun probability at 62%—it offers a welcome respite before the winter months set in. As the year progresses, the chance of sunny days generally improves, creating a favorable climate for enjoying the beautiful fall scenery.
As autumn sets in, October in Hamamatsu, Japan, experiences a subtle decline in daylight, with an average of 11 hours compared to the longer days of summer, which reach a peak of 14 hours in both June and July. This gradual decrease, beginning in August, reflects a shift towards the shorter days of the colder months, as daylight dwindles to 10 hours in November and further to 9 hours by December. The transition from summer's brightness to autumn's cozy ambiance creates a rhythm of light and dark that influences the local lifestyle, encouraging a blend of outdoor activities and the preparation for the quieter, reflective months ahead.
As October arrives in Hamamatsu, Japan, the winds start to shift into a gentle rhythm, with average wind speeds reaching around 3.0 m/s (7 mph). This marks a slight increase compared to the summer months, where the winds were notably calmer, hovering below 3.0 m/s. As the city transitions into autumn, the breezes begin to carry a refreshing crispness, offering a delightful contrast to the humidity of the preceding months. In this seasonal transition, the winds remain moderate, setting the stage for the cooler months ahead, as November promises a return to stronger gusts around 3.6 m/s (8 mph). Observing this trend, one can appreciate how the October winds in Hamamatsu create a perfect backdrop for embracing the beauty of fall foliage and outdoor activities.
Weather in Hamamatsu varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Hamamatsu, focusing on differences in temperature, rainfall, humidity, and UV levels.
October and January exhibit strikingly different weather patterns. October boasts a warmer climate, with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 32°C (89°F), accompanied by high humidity levels of 83%. The month experiences considerable rainfall, totaling 293 mm (11.5 in) over approximately 15 days. In contrast, January presents a much cooler atmosphere, where temperatures dip to a minimum of -2°C (29°F) and peak at 18°C (64°F). This month is notably drier, with only 51 mm (2.0 in) of precipitation occurring over just 4 days and a lower humidity of 76%. For more detailed weather insights, you can check Hamamatsu weather in January.
October and February present strikingly different weather patterns. October boasts warmer temperatures, with averages around 20°C (68°F) and highs reaching up to 32°C (89°F), while February experiences much cooler conditions, averaging just 7°C (46°F) with a maximum of 21°C (71°F). Additionally, October is notably wetter, with 293 mm (11.5 inches) of precipitation over 15 days, compared to February’s more manageable 76 mm (3.0 inches) across only 6 days. Humidity levels also reflect this contrast, soaring to 83% in October while dropping to 74% in February. For more details on February weather specifics, visit Hamamatsu weather in February.
In comparing the weather of October and March, we see a notable difference in temperatures and precipitation levels. October experiences a wider temperature range, with minimums of 10°C (50°F) and maximums reaching 32°C (89°F), averaging around 20°C (68°F). It's also marked by significant rainfall, totaling 293 mm (11.5 in) over approximately 15 days, accompanied by a high humidity of 83%. In contrast, March brings cooler conditions, with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 25°C (77°F), averaging 12°C (53°F). The month sees less rainfall, with about 166 mm (6.5 in) over 10 days and a lower humidity level of 70%. For more detailed insights on March weather, you can visit Hamamatsu weather in March.
When comparing the weather in October and April, there are notable differences in temperature and precipitation. October typically features a minimum temperature of 10°C (50°F) with an average of 20°C (68°F) and highs reaching 32°C (89°F). In contrast, April presents milder conditions, with a minimum of 3°C (37°F), an average of 15°C (60°F), and a maximum of 28°C (83°F). Additionally, October experiences significantly more rainfall, with 293 mm (11.5 in) over 15 days, compared to April's 172 mm (6.8 in) over 11 days. Humidity levels are also higher in October at 83%, compared to April’s 74%. For more details on April weather, visit Hamamatsu weather in April.
In comparing the weather of October and May, both months feature similar average temperatures around 20°C (68°F) and experience highs of up to 32°C (90°F). However, October tends to be wetter, with 293 mm (11.5 in) of precipitation over 15 days, compared to May's 198 mm (7.8 in) over 12 days. Additionally, October has a slightly higher humidity level at 83%, while May's humidity is at 81%. For a detailed look at May's weather, you can check out Hamamatsu weather in May.
In comparing the weather of October and June, we see some notable differences. October's temperatures range from a minimum of 10°C (50°F) to a maximum of 32°C (89°F), with an average of around 20°C (68°F). In contrast, June experiences slightly warmer temperatures, with a minimum of 15°C (59°F) and an average of 23°C (74°F), reaching a maximum of 32°C (90°F). While both months see considerable rainfall, October has higher precipitation levels at 293 mm (11.5 in) over 15 days, compared to June's 261 mm (10.3 in) over 16 days. Additionally, humidity in October is slightly lower at 83%, whereas June is more humid at 88%. For more detailed insights on June weather, you can visit Hamamatsu weather in June.
In comparing the weather between October and July, October tends to be milder with an average temperature of 20°C (68°F), whereas July is significantly warmer, averaging 27°C (81°F) with maximum temperatures soaring up to 40°C (105°F). Additionally, October experiences a lower amount of precipitation at 293 mm (11.5 in) over 15 days, compared to July's higher rainfall of 408 mm (16.1 in) across 21 days. Humidity levels are also slightly lower in October at 83%, compared to July's higher humidity at 93%. For a more detailed look at July's climate, you can visit Hamamatsu weather in July.
October and August present distinct weather patterns, highlighting a transition from the peak summer heat to milder autumn conditions. In August, temperatures range from a minimum of 20°C (68°F) to a scorching maximum of 42°C (107°F), with an average of 29°C (84°F) and humidity at 90%. In contrast, October sees cooler temperatures, with a minimum of 10°C (50°F) and a maximum of 32°C (89°F), averaging around 20°C (68°F). While both months experience precipitation on 15 days, October's total rainfall measures 293 mm (11.5 in), significantly higher than August's 197 mm (7.8 in). For more insights on August weather, check out Hamamatsu weather in August.
In comparing the weather between October and September, we see notable differences in temperature and precipitation patterns. October has a minimum temperature of 10°C (50°F) and an average of 20°C (68°F), significantly lower than September, which enjoys a milder minimum of 15°C (60°F) and an average of 25°C (77°F). The maximum temperatures also drop, with October peaking at 32°C (89°F) compared to September’s warmer maximum of 36°C (96°F). Precipitation increases in October, totaling 293 mm (11.5 in) over 15 days, while September sees less rainfall at 222 mm (8.7 in) across 20 days. Humidity remains relatively high in both months, with October at 83% and September slightly higher at 86%. For a more detailed look at September weather in Hamamatsu, check out Hamamatsu weather in September.
In October, the weather typically features a significant temperature range, with minimums around 10°C (50°F) and highs reaching up to 32°C (89°F), resulting in an average temperature of 20°C (68°F). The month sees considerable rainfall, totaling 293 mm (11.5 in) over approximately 15 days, coupled with high humidity levels at 83%. In contrast, November brings cooler temperatures, with a minimum of 3°C (38°F) and a maximum of 24°C (75°F), resulting in a more moderate average of 15°C (58°F). Precipitation decreases significantly to 83 mm (3.3 in) across about 8 days, and humidity remains slightly lower at 80%. For more details on the weather in November, visit Hamamatsu weather in November.
In October, the weather is generally warmer and more humid, with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 32°C (89°F) and an average of 20°C (68°F). This month also sees a significant amount of rainfall, totaling 293 mm (11.5 in) over about 15 days, resulting in a humidity level of 83%. In contrast, December brings a much cooler climate, with temperatures dropping to a minimum of 0°C (32°F) and an average of 9°C (49°F), peaking at 23°C (74°F). Additionally, precipitation decreases to 67 mm (2.6 in) over just 6 days, with humidity at a lower 78%. For more specific information about weather conditions in December, you can visit Hamamatsu weather in December.
As October in Hamamatsu unfolds, the weather presents a fascinating transition from the sweltering summer to the cooler embrace of autumn. With average temperatures dipping to a comfortable 20°C (68°F), this month offers a delightful reprieve from the heat, accompanied by increased humidity levels at 83%. Rainfall becomes more frequent, with 15 days experiencing precipitation, totaling around 293 mm (11.5 in), which is significantly higher compared to the preceding months. This tropical blend of warmth and moisture creates an atmosphere rich with the scents of fall, making it a unique time to explore the beauty of Hamamatsu. For a deeper dive into how October compares to other months, check out Hamamatsu Climate.