Last updated: August 21, 2025
In Yokohama, Japan, August delivers a warm and humid experience, with maximum temperatures soaring to 29°C (85°F) while the average hovers around 22°C (72°F). Visitors can expect a refreshing reprieve during the cooler nights, with minimum temperatures dipping to 17°C (63°F). However, this month is characterized by significant precipitation, accumulating to 203 mm (8.0 inches) over 15 days, which contributes to a muggy atmosphere with humidity levels reaching an impressive 97%. This blend of warmth and moisture creates a vibrant, lush environment, making it a unique time to explore the city.
In Yokohama, Japan, August brings warm and inviting temperatures, making it one of the hottest months of the year. With minimums averaging 17°C (63°F) and maximums reaching up to 29°C (85°F), the city basks in a lovely summer climate. The average temperature settles around 22°C (72°F), striking a comfortable balance for both locals and visitors. This warmth is a delightful contrast to the winter chill, which can dive as low as -7°C (19°F) in January. As the month progresses, you can expect milder evenings and plenty of sunshine, creating an ideal backdrop for exploring the vibrant culture and beautiful waterfront of Yokohama.
In August, Yokohama experiences a significant surge in precipitation, with an impressive 203 mm (8.0 in) of rainfall spread across 15 days. This sharp increase marks the wettest month of the year, contrasting with the less intense rainy periods seen earlier from January to July, where average monthly totals hovered around 97 mm to 128 mm. The transition into late summer not only brings warmth but also a dramatic uptick in rainfall, highlighting a seasonal peak in precipitation. As September approaches, the amount of rainfall decreases notably to 113 mm (4.5 in), yet the month still embodies a defined pattern of fluctuating wetness that characterizes Yokohama's climate through the year.
In August, Yokohama experiences its peak humidity level at a staggering 97%, marking the height of the summer season. This surge follows a steady increase from July's already high 95%, highlighting the oppressive stickiness typical of the month. As the warm summer air mixes with increased rainfall, August stands out as the most humid month of the year, creating a palpable mugginess that is felt throughout the city. In contrast, the months preceding summer—such as January to April—see much lower humidity levels, ranging between 77% and 79%. Following August, humidity begins to taper off in September to 89%, leading into the cooler and drier fall months. This progression illustrates a clear seasonal pattern, where the humidity rises dramatically during the summer before gradually descending as autumn approaches.
In August, Yokohama experiences its highest UV Index of the year at 11, placing it in the extreme exposure category. With a burn time of just 10 minutes, residents and visitors alike must take additional precautions to shield themselves from the sun’s intense rays. This sharp increase from previous months illustrates a significant summer trend, where UV levels surge from moderate in the winter to very high and ultimately to extreme during the height of summer. Following August, the UV Index drops to 8 in September, signaling a gradual return to safer levels. For detailed insights on UV levels throughout the year, check out Yokohama UV Index.
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August in Yokohama, Japan, basks in the warmth of 257 hours of sunshine, making it one of the sunniest months of the year. Following a peak in brightness during May, where the city enjoyed 294 hours of glowing rays, the summer months maintain a solid glow, with August showing a slight dip but still reflecting a strong summer sun. The trend from June to August reveals a gradual decrease in sunny hours, hovering closely around the high 250s, which suggests that while the dazzling days of summer are winding down, they continue to offer ample opportunities for outdoor enjoyment. As September approaches, the sunshine slightly wanes to 256 hours, hinting at the gradual transition into autumn while still allowing residents and visitors to relish the lingering summer vibes.
In Yokohama, Japan, the likelihood of sunny weather in August dips notably, with only a 25% chance of clear skies. This decrease is part of a broader trend, as summer months typically present lower probabilities of sunshine compared to the fall. For instance, July holds a 33% chance, but as the calendar flips to August, residents and visitors may find themselves facing more overcast days. Interestingly, as summer wanes, September provides a more inviting 42% chance of sunny weather, suggesting that those who extend their stay into early autumn may enjoy a brighter experience.
In Yokohama, Japan, the rhythm of daylight unfolds dramatically throughout the year, culminating in the vibrant summer months. By August, daylight lingers around 13 hours, slightly tapering from the peak of 15 hours in June and maintaining a celebratory glow before the gradual transition into autumn. This shift mirrors the progression of the year, where daylight begins at a modest 9 hours in January and steadily climbs, reaching its zenith in the lush month of June. As summer wanes, the gradual decline in daylight signals the approach of cooler months, with September's 12 hours foreshadowing the return to shorter days. This cyclical dance of light reflects not just the changing seasons, but also the vibrant life and activities that pulse through Yokohama, making each hour of daylight a cherished part of the city's dynamic landscape.
August in Yokohama greets visitors with a gentle embrace of wind, registering an average speed of 5.6 m/s (13 mph). This slight uptick in breeze marks a transition from the calmer currents of early summer, where June saw its lowest at 4.8 m/s (11 mph). As the month progresses, this modest increase suggests a subtle shift toward the more dynamic autumn winds. Though still mild compared to the brisk gusts of the winter months, August’s air carries hints of the changing seasons, creating a refreshing atmosphere perfect for outdoor exploration. Overall, the trend showcases a gradual increase in wind speed from the summer's lull toward the invigorating whispers of fall, setting the stage for nature's vibrant changes.
Weather in Yokohama varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Yokohama, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January present stark contrasts in weather conditions. In August, temperatures typically range from a mild 17°C (63°F) to a warm 29°C (85°F), with an average of 22°C (72°F). This summer month also experiences high humidity at 97% and significant rainfall, totaling 203 mm (8.0 in) over about 15 days. In contrast, January is much colder, with temperatures dipping as low as -7°C (19°F) and only reaching a maximum of 8°C (46°F), averaging just 1°C (34°F). Despite having fewer rainy days, January still sees 97 mm (3.8 in) of precipitation over 19 days, accompanied by lower humidity at 79%. For more details on January weather in Yokohama, check out Yokohama weather in January.
In August, the weather is characterized by warm temperatures, ranging from a minimum of 17°C (63°F) to a maximum of 29°C (85°F), with an average temperature of 22°C (72°F). The month sees substantial precipitation of 203 mm (8.0 in) over about 15 days, combined with high humidity levels of 97%. In contrast, February features a much colder climate, with temperatures plummeting to a minimum of -7°C (20°F) and a maximum of only 8°C (46°F), averaging around 0°C (33°F). Although February experiences less precipitation at 108 mm (4.3 in), it has slightly more rainy days, totaling 21, accompanied by lower humidity of 78%. For more details on February weather, check Yokohama weather in February.
In August, the weather is warm and humid, with temperatures ranging from a minimum of 17°C (63°F) to a maximum of 29°C (85°F) and an average of 22°C (72°F). The month experiences significant rainfall, with 203 mm (8.0 in) spread over 15 days, contributing to its high humidity of 97%. In stark contrast, March presents much cooler conditions, featuring a minimum temperature of -4°C (26°F) and a maximum of 14°C (58°F), with an average temperature of just 4°C (40°F). While March sees considerably less precipitation at 89 mm (3.5 in) over 14 days, the humidity is lower at 77%. For more details on the weather in March, you can check Yokohama weather in March.
When comparing the weather in August and April, it's clear that August is warmer and more humid. August sees average temperatures ranging from a minimum of 17°C (63°F) to a maximum of 29°C (85°F), while April experiences much cooler conditions, with temperatures fluctuating between 1°C (34°F) and 18°C (64°F). Additionally, August is significantly wetter, receiving 203 mm (8.0 in) of precipitation over 15 days, compared to April’s 99 mm (3.9 in) over just 13 days. The humidity levels in August peak at a muggy 97%, contrasting with the more comfortable 78% in April. For more details, you can explore Yokohama weather in April.
August weather presents a warm and humid contrast to May. With temperatures ranging from a minimum of 17°C (63°F) to a maximum of 29°C (85°F), August averages a pleasant 22°C (72°F), while May experiences cooler temperatures with a minimum of 6°C (44°F) and a maximum of 23°C (74°F), averaging only 12°C (55°F). In terms of precipitation, August is significantly wetter, receiving 203 mm (8.0 in) over 15 days, compared to May's 101 mm (4.0 in) across 12 days. Additionally, humidity peaks at a muggy 97% in August, while May maintains a more comfortable 86%. For more details about the weather in May, you can visit Yokohama weather in May.
In comparing the weather of June and August, August tends to be significantly warmer, with average temperatures reaching 22°C (72°F) compared to June's average of 16°C (61°F). The maximum temperature in August can soar up to 29°C (85°F), while June's maximum is a more moderate 24°C (76°F). However, August also experiences higher humidity at 97%, contributing to a muggy atmosphere, whereas June maintains a slightly drier 91% humidity level. Additionally, August has more rainfall, with 203 mm (8.0 in) over roughly 15 days, in contrast to June’s 123 mm (4.9 in) over 12 days. For more details on June weather, you can check Yokohama weather in June.
In comparing the weather of August and July, August tends to be slightly warmer with average temperatures ranging from a minimum of 17°C (63°F) to a maximum of 29°C (85°F), compared to July's 14°C (57°F) minimum and 28°C (83°F) maximum. Additionally, August experiences more precipitation, totaling 203 mm (8.0 in) over 15 days, while July sees less rain at 128 mm (5.0 in) spread across 13 days. The humidity also increases in August, reaching 97%, compared to July’s 95%. For a more detailed look at July's weather patterns in Yokohama, check out Yokohama weather in July.
August typically presents warmer weather compared to September, with average temperatures reaching 22°C (72°F) in August, contrasted with a cooler average of 20°C (69°F) in September. The higher humidity levels in August, at 97%, also contribute to a muggy atmosphere, while September sees a decrease to 89%. Additionally, August experiences significantly more rainfall, with 203 mm (8.0 in) over 15 days, compared to September's 113 mm (4.5 in) over 12 days. For a closer look at September conditions in this region, visit Yokohama weather in September.
August and October present a notable contrast in weather patterns. In August, temperatures range from a minimum of 17°C (63°F) to a maximum of 29°C (85°F), with an average temperature of 22°C (72°F). The month is characterized by high humidity at 97% and significant rainfall, totaling 203 mm (8.0 in) over 15 days. In contrast, October experiences cooler temperatures, with a minimum of 8°C (47°F) and a maximum of 25°C (77°F), averaging 16°C (60°F). While October sees less rainfall at 168 mm (6.6 in) over 13 days, the humidity drops to 81%. For more detailed insights on October weather specifically, you can check out Yokohama weather in October.
August and November present strikingly different weather patterns. In August, temperatures range from a mild 17°C (63°F) at night to a warm 29°C (85°F) during the day, accompanied by high humidity at 97%. The month is also quite rainy, with 203 mm (8.0 in) of precipitation over about 15 days. In contrast, November experiences much cooler temperatures, with a minimum of 0°C (32°F), an average of 9°C (49°F), and a maximum of 17°C (63°F). Though November sees less rain, with 94 mm (3.7 in) over 17 days, humidity levels drop to 78%, making the air feel crisper. For more details, you can check out Yokohama weather in November.
August and December present stark contrasts in weather conditions. In August, temperatures typically range from a mild 17°C (63°F) to a warm 29°C (85°F), accompanied by high humidity levels at 97%. The month also sees significant rainfall, with 203 mm (8.0 in) of precipitation over an average of 15 days. In contrast, December experiences much colder temperatures, with a range from -4°C (24°F) to a maximum of 14°C (58°F). The average temperature dips to 3°C (38°F), and while the precipitation level is lower at 151 mm (6.0 in), it spans over a greater number of days, totaling 26. For a more detailed look at December weather, check out Yokohama weather in December.
August in Yokohama brings about a notable shift in weather compared to other months, characterized by warm temperatures and high humidity levels. With daily highs reaching 29°C (85°F) and lows around 17°C (63°F), this month is among the warmest of the year. However, it also experiences substantial rainfall, with an average of 203 mm (8.0 in) spread over approximately 15 days, making it one of the wetter months. The high humidity, peaking at 97%, can make the heat feel more intense, creating a clammy atmosphere that's distinct from the more temperate conditions of the spring and autumn months. For a comprehensive understanding of how Yokohama's climate shapes its seasonal offerings, check out Yokohama Climate.