October Weather in Yokosuka, Japan

Last updated: August 21, 2025

Experience the captivating weather of Yokosuka, Japan in October. This month showcases a maximum temperature reaching 27°C (81°F), with an average of 20°C (68°F), ensuring pleasantly mild days. As the temperature dips, expect a minimum of around 13°C (56°F) during the cooler nights. However, prepare for significant precipitation, totaling 271 mm (10.7 in) over approximately 16 rainy days. The air is rich with humidity, hovering around 83%, adding a touch of tropical ambiance. Embrace the dynamic blend of mild warmth and lush, rainy days that October brings to Yokosuka!

October Temperature in Yokosuka

In October, Yokosuka, Japan, experiences a delightful transition into autumn, with temperatures reflecting a comfortable range. The minimum temperature hovers around 13°C (56°F), while the average reaches a pleasant 20°C (68°F), peaking at a maximum of 27°C (81°F). This trend showcases a clear shift from the sweltering heat of summer, evident in September’s higher numbers, to a more moderate fall climate. As the month progresses, the crispness in the air begins to set the stage for the cooler months ahead, making it an ideal time to enjoy outdoor activities and witness the stunning fall foliage that blankets the region.

October Weather in Yokosuka: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Yokosuka, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yokosuka, October typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec464753586671778075686051
Data source: Temperature data for Yokosuka generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

October Precipitation in Yokosuka

October in Yokosuka, Japan, marks a significant peak in precipitation, with the city receiving a remarkable 271 mm (10.7 in) of rain over 16 days. This surge in rainfall contrasts sharply with the warmer summer months; while July typically showcases the highest volume with 211 mm, October surpasses it, indicating the onset of the autumn season and its associated weather patterns. The rainfall in October not only highlights a substantial increase from September's 189 mm (7.4 in), but also sets the stage for the transition into the cooler and drier months ahead, with November and December expected to see much lower totals of 108 mm and 71 mm, respectively. This trend showcases how Yokosuka prepares to wrap up the year, trading summer's humidity for autumn's lively showers.

October Precipitation Trends in Yokosuka

The chart displays monthly precipitation patterns in Yokosuka, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Yokosuka, October typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec615215512313617521111718927110972
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

October Humidity in Yokosuka

In Yokosuka, Japan, October sees a humidity level of 83%, marking a subtle decline from the peak summer months and hinting at the changing seasons. As the year progresses from January's 76% humidity to the sweltering heights of 93% in July, October presents a refreshing transition. After the high humidity of late summer, which often lingers with 90% in August and 86% in September, the October air takes on a slightly drier feel. Despite this dip, it’s still noticeably humid compared to earlier in the year, particularly when you consider the lower levels of 70% recorded in March. As the city inches closer to winter, Yokosuka’s October climate remains inviting, balancing warmth with moderate moisture that prepares the way for the cooler months ahead.

October Average Humidity in Yokosuka

This chart illustrates the average monthly humidity levels in Yokosuka, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Yokosuka is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%74%70%74%82%88%93%90%86%83%80%78%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Yokosuka

As October arrives in Yokosuka, Japan, the UV Index sees a dip, measuring 7 and falling into the high exposure category. This provides a slight reprieve from the extreme levels experienced during the summer months, where indices peaked at 11, necessitating a burn time of just 10 minutes. In comparison, October allows for a more generous 25-minute exposure before risking sunburn, a welcome shift from the previous intense periods. While the UV Index in October remains elevated, it's a noticeable drop from the scorching heights of summer, transitioning towards the cooler months ahead. For a comprehensive overview of the UV Index throughout the year, visit Yokosuka UV Index.

Maximum UV Index Levels in Yokosuka for October

The chart shows the monthly maximum UV Index (UVI) for Yokosuka in October, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In October, the maximum UV index in Yokosuka typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec458101111111110754
Data source: Yokosuka October UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

October Sunshine in Yokosuka

In Yokosuka, Japan, October welcomes a gentle decline in sunshine, offering 205 hours of daylight. This month stands in stark contrast to the sun-drenched heights of August, which boasts a remarkable 297 hours of sunshine. Following a steady climb from the beginning of the year, where January starts with only 187 hours, October marks a transition into the cooler fall months. Despite this dip, it remains a vibrant time, with sunshine hours still outpacing those in the early winter months of November and December, both at 226 hours. The trend encapsulates a gradual shift from summer's exuberance towards a more subdued, yet still pleasant, autumn ambiance.

Monthly Sunshine Duration in Yokosuka: October Highlighted

The October sunshine duration represents the total number of hours Yokosuka experiences direct sunlight during the month of October, excluding cloudy or obstructed periods. This chart compares the sunshine duration of October with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec187h224h255h269h286h262h249h297h239h205h226h226h
Data source: Yokosuka October Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Yokosuka During October

In Yokosuka, Japan, October presents a moderate chance of sunny weather, with about 49% likelihood of sunshine gracing the skies. As the year transitions from the sweltering summer heat to the cooler autumn months, there's a noticeable shift in weather patterns. This month's sunshine probability is a bit lower than the more vibrant spring months of April and November, yet it marks a slight improvement compared to the summer's cloudier conditions. The data suggests that while October may not deliver the sunniest days, it still offers a respectable balance of clear skies alongside the onset of autumn foliage, making it a charming time for outdoor activities.

Percentage of Sunny Days in October in Yokosuka

The chart illustrates the percentage of sunny days in Yokosuka throughout the year, with October highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Yokosuka experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec52%64%42%50%25%25%36%39%29%49%62%66%
Data source: Yokosuka October chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Yokosuka in October

As October rolls into Yokosuka, Japan, daylight begins to dwindle, offering approximately 11 hours of sunlight each day. Following the vibrant long days of summer, which peaked at 14 hours in June, the trend shifts toward shorter daylight hours as the year progresses. After enjoying 14 hours in both May and June, the sun starts to retreat, with August and September experiencing a gradual decline to 13 and 12 hours, respectively. Now, in October, the interplay of fading light signals the onset of autumn, ushering in a season characterized by crisper air and the enchanting colors of fall foliage. This gentle reduction in daylight continues into the colder months, setting the stage for winter's early sunsets.

Average Daylight Hours in Yokosuka for October

The chart illustrates the variation in daylight duration in Yokosuka throughout the year, with October highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 3m10h 53m11h 58m13h 4m14h 1m14h 29m14h 15m13h 26m12h 22m11h 15m10h 18m9h 48m
Data source: Yokosuka daylight hours, calculated by summing the hours between sunrise and sunset for each day.

October Winds in Yokosuka

As October arrives in Yokosuka, Japan, the winds begin to whisper a familiar tune, with an average speed of 5.5 m/s (12 mph). This month experiences a gentle resurgence from the calmer summer breezes of June and July, which recorded their lowest winds at just 3.8 m/s (8 mph) and 3.5 m/s (8 mph) respectively. As autumn unfolds, it appears that the winds are finding a balance, with October's gusts almost mirroring the steady flows of spring months like April and May. In contrast to the mild summer, the transition into fall showcases a refreshing consistency, hinting at the playful dance of wind that characterizes the season. Yokosuka enjoys a harmonious blend of warmth and coolness, as nature prepares for the upcoming winter months.

Average October Wind Speed in Yokosuka

The chart displays monthly wind speed patterns in Yokosuka, with values for each month shown alongside October's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how October's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec5.46.15.65.55.73.83.55.35.35.5 m/s5.65.8
Data source: Yokosuka October wind data, generated using information from the Copernicus Climate Change Service.

How October Weather in Yokosuka Compares to Other Months

Weather in Yokosuka varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Yokosuka, focusing on differences in temperature, rainfall, humidity, and UV levels.

In October, the weather is considerably warmer and more humid compared to January, with average temperatures ranging from a minimum of 13°C (56°F) to a maximum of 27°C (81°F). This month sees significant precipitation, totaling 271 mm (10.7 in) over 16 days, resulting in a high humidity level of 83%. In contrast, January experiences much cooler temperatures, with an average ranging from 0°C (33°F) to 18°C (64°F), and significantly less rainfall at 61 mm (2.4 in) over just 5 days. The humidity in January is lower at 76%, creating a crisp and drier atmosphere. For more details on January weather in Yokosuka, check out Yokosuka weather in January.

October and February present contrasting weather patterns. In October, temperatures range from a minimum of 13°C (56°F) to a maximum of 27°C (81°F), with an average of 20°C (68°F). This month also experiences significant rainfall, with 271 mm (10.7 inches) spread over 16 days and a high humidity level of 83%. In contrast, February is much cooler, with temperatures dipping to a minimum of 1°C (35°F) and averaging only 8°C (48°F), peaking at 18°C (65°F). Precipitation is notably lower in February, amounting to just 52 mm (2.0 inches) over 8 days, coupled with a humidity of 74%. For more detailed information, check out Yokosuka weather in February.

October and March present contrasting weather characteristics. In October, temperatures typically range from a mild 13°C (56°F) to a warm 27°C (81°F), with an average of 20°C (68°F). This month is also notable for its higher precipitation, totaling 271 mm (10.7 in) across 16 days, and a humidity level of 83%, making it feel quite damp. In contrast, March experiences cooler temperatures, with minimums of 4°C (39°F) and maximums reaching 19°C (66°F), leading to a more temperate average of 11°C (53°F). Rainfall in March is significantly lower at 155 mm (6.1 in) over 12 days, and the humidity drops to 70%, providing a less muggy atmosphere. For more detailed insights on March weather, you can check out Yokosuka weather in March.

When comparing the weather in October and April, it's clear that October tends to be warmer and significantly wetter. October features a minimum temperature of 13°C (56°F) and an average high of 27°C (81°F), alongside a notable precipitation total of 271 mm (10.7 in) spread over 16 days, resulting in a high humidity of 83%. In contrast, April experiences cooler temperatures, with a minimum of 6°C (43°F) and highs averaging around 21°C (70°F), along with lower precipitation at 123 mm (4.8 in) over just 10 days, and a humidity level of 74%. For more details on the specific weather patterns, you can refer to Yokosuka weather in April.

October and May both experience mild temperatures, but October tends to be warmer, with averages ranging from 20°C (68°F) to a maximum of 27°C (81°F), compared to May's average of 19°C (66°F) and a maximum of 24°C (75°F). Additionally, October is significantly wetter, receiving 271 mm (10.7 in) of precipitation over 16 days, while May sees only 136 mm (5.3 in) across 11 days. Humidity levels are similar in both months, with October at 83% and May at 81%. For more detailed insights on May weather, check out Yokosuka weather in May.

In comparing October and June weather, October tends to be slightly cooler, with minimum temperatures around 13°C (56°F) and average highs reaching 27°C (81°F), while June sees minimums of 16°C (62°F) and maximums of 26°C (79°F). October experiences more precipitation, totaling 271 mm (10.7 in) over 16 rainy days, compared to June's 175 mm (6.9 in) over 12 days. Additionally, October's humidity is slightly lower at 83%, compared to June's 88%. For a detailed overview, you can check Yokosuka weather in June.

In comparing the weather between October and July, we can see notable differences in temperature, precipitation, and humidity levels. October generally experiences a cooler climate with average temperatures around 20°C (68°F), ranging from a minimum of 13°C (56°F) to a maximum of 27°C (81°F), while July is notably warmer, averaging 25°C (77°F) with lows of 19°C (67°F) and highs reaching 29°C (85°F).

Precipitation is slightly more prevalent in October, with 271 mm (10.7 in) over 16 rainy days compared to July's 211 mm (8.3 in) across 17 days. Humidity levels are also higher in July at 93%, compared to October's 83%. For more detailed insights into July's weather, you can explore this link: Yokosuka weather in July.

In comparing the weather of October and August, October experiences cooler temperatures with a minimum of 13°C (56°F) and an average of 20°C (68°F), while August is significantly warmer, featuring a minimum of 21°C (70°F) and an average of 27°C (80°F). October also sees increased precipitation, totaling 271 mm (10.7 in) over 16 days, compared to August's 117 mm (4.6 in) over just 11 days. Humidity levels are slightly lower in October at 83%, as opposed to 90% in August, creating a more comfortable atmosphere for outdoor activities. For more details about August weather, visit Yokosuka weather in August.

In comparing the weather between September and October, we notice a distinct shift in temperatures and precipitation. September experiences warmer temperatures, with a minimum of 18°C (65°F) and an average of 24°C (76°F), while October sees cooler temperatures, ranging from a minimum of 13°C (56°F) to an average of 20°C (68°F). Precipitation levels also rise significantly in October, with a total of 271 mm (10.7 in) spread over 16 days, compared to September's 189 mm (7.4 in) over 15 days. Additionally, October maintains a slightly lower humidity level at 83% compared to September's 86%. For a closer look at September's weather details, check out Yokosuka weather in September.

October and November present distinct shifts in weather patterns. In October, temperatures range from a comfortable minimum of 13°C (56°F) to a warm maximum of 27°C (81°F) with an average of 20°C (68°F). This month also sees significant rainfall, accumulating to 271 mm (10.7 in) over 16 days, and maintaining high humidity levels at 83%. In contrast, November experiences cooler temperatures, with a minimum of 6°C (43°F), an average of 16°C (60°F), and a maximum of 22°C (72°F). Precipitation decreases to 108 mm (4.3 in) over 11 days, and humidity also slightly declines to 80%. For a detailed look at what to expect, check out Yokosuka weather in November.

October and December present markedly different weather patterns. In October, temperatures range from a pleasant 13°C (56°F) to a warm 27°C (81°F), with an average of 20°C (68°F). This month experiences significant rainfall, totaling 271 mm (10.7 in) over 16 days, and boasts a high humidity level of 83%. In contrast, December sees a much cooler climate, with temperatures dipping as low as 3°C (37°F) and averaging around 11°C (51°F). Although the maximum temperature can still reach 21°C (70°F), precipitation decreases considerably to 71 mm (2.8 in) spread over just 8 days, and humidity slightly drops to 78%. For more information, you can check Yokosuka weather in December.

Compare Yokosuka's Climate with Cities Worldwide

Conclusion: What to Expect From October Weather in Yokosuka

As October sets in, Yokosuka transitions into a cooler and more humid season, with temperatures reflecting a pleasant shift from the summer heat. The average temperature dips, providing a comfortable climate for exploring the city. This month is also marked by a significant amount of rainfall, with nearly half the days experiencing precipitation, making it distinctly wetter than the preceding months. With humidity levels remaining high, the air feels damp, adding a unique characteristic to the autumn atmosphere. For those looking to learn more about the seasonal changes, visit Yokosuka Climate for a deeper dive into the weather patterns throughout the year.