Last updated: August 21, 2025
In Chiba, Japan, August presents a warm and humid climate with maximum temperatures reaching up to 33°C (92°F) and an average temperature of 27°C (81°F). The month experiences a notable minimum temperature of 20°C (69°F), providing a mild respite from the heat during cooler nights. Rainfall is a significant feature, with 118 mm (4.7 in) of precipitation spread across 13 days, contributing to the region's lush greenery and vibrant summer atmosphere. The humidity levels soar to around 90%, making it an ideal time for enjoying the beach while keeping cool in the shade.
In August, Chiba, Japan, experiences its warmest temperatures of the year. With minimum highs of 20°C (69°F) and average temperatures reaching 27°C (81°F), the month showcases a vibrant summer climate. The maximum temperature can soar to 33°C (92°F), making it a peak time for outdoor activities and beach visits. This contrasts sharply with the winter months where temperatures dip to icy lows of -2°C (28°F) in January. As the summer progresses, it builds from June’s modest warmth, which sets the stage for the July heatwave. By August, the warmth is at its zenith, perfectly illustrating a transition from the more temperate springto the balmy embrace of late summer. As September approaches, a gradual cooling begins with temperatures dropping to 16°C (60°F), reminding everyone that while summer is glorious, autumn is just around the corner.
August in Chiba, Japan, presents a notable shift in precipitation patterns as the summer season nears its end. With 118 mm (4.7 in) of rainfall over 13 days, the month experiences a decline from the 226 mm (8.9 in) recorded in July, signaling a transitional phase where the heaviest rains of the rainy season begin to subside. Although August sees less rainfall than its predecessor, it still contributes significantly to the region's lush landscapes, falling just short of the precipitation seen in both the spring and early summer months. As the days shorten and temperatures cool, August's moderate rains set the stage for the wetter months of September and October, which are known for their dramatic increases in rainfall. Overall, while August may not boast the extremes of its summer counterparts, it plays an essential role in the region’s annual hydrological cycle.
August in Chiba, Japan, sees a notable rise in humidity, reaching a high of 90%. This month marks a slight dip from the previous month’s peak of 93% in July, but remains among the most humid times of the year. Interestingly, the trend shows that humidity levels begin to climb significantly during the summer months, starting from 81% in May and peaking in July. Post-August, there’s a gradual decline, indicating the onset of autumn, with September recording 86% humidity. This cyclical pattern highlights Chiba's characteristic warm and muggy summers, making August a quintessential experience of Japan's tropical climate.
In August, Chiba, Japan, experiences an extreme UV Index of 11, matching the intensity observed in July and June. This peak signifies that sun exposure poses substantial risks, with the potential for skin burns occurring within just 10 minutes of direct sunlight. The trend throughout the summer months reveals a significant escalation in UV levels, shifting from a moderate UV Index of 3 in January to this alarming rating, illustrating the importance of sun protection during this time. As the summer draws to a close, it’s essential for residents and visitors alike to remain vigilant about UV exposure. For more detailed information, visit Chiba UV Index.
UV Risk Categories
In August, Chiba, Japan, basks in the glory of 288 hours of sunshine, marking the peak of the summer season. This bright month stands out as the sunniest of the year, with a noticeable increase from the 238 hours recorded in July. The delightful trend of rising sunlight hours continues from the spring months, as the region transitions from 270 hours in April to 281 hours in May, culminating in August's radiant embrace. Following this sun-drenched peak, the sunshine begins to wane again in September with 234 hours, hinting at the subtle shift toward autumn. Overall, the data reflects a vibrant summer where each month gradually enhances the allure of outdoor adventures under the sun.
In Chiba, Japan, August experiences a 38% chance of sunny weather, which reflects a modest trend compared to the earlier summer months. While July sees a slightly higher likelihood of sun at 35%, the overall pattern indicates that the summer season tends to be less predictable, with both June and July showing lower sun probabilities. Interestingly, as the year progresses into autumn, the chances of sunshine begin to rise, peaking notably in the latter months. Thus, while August may not boast the sunniest days, it still offers a decent opportunity for outdoor enjoyment, especially against the backdrop of the warmer summer weather.
In Chiba, Japan, the daylight duration exhibits a distinct seasonal rhythm, peaking in the vibrant months of spring and summer. Starting from January with just 10 hours, the days gradually lengthen, reaching a climax in May and June at 14 hours of daylight. As summer wanes, the daylight begins to taper off; by August, residents enjoy a comfortable 13 hours of light, setting the stage for the approaching fall. This gradual decrease continues into September with 12 hours and further descends to 10 hours by late autumn. This trend highlights the region's transformation from the abundant brightness of summer to the quieter, shorter days of winter, inviting residents to adapt their activities with each changing season.
In Chiba, Japan, the August winds offer a refreshing shift in the summer landscape, averaging 4.4 m/s (10 mph)—a delightful peak that aligns with the overall trend of increasing wind speeds in the late spring to early summer months. Following a gradual rise from 3.8 m/s in January to its highest point in May at 5.0 m/s, the winds begin to dip slightly during the hotter months of June and July. However, August marks a resurgence, echoing the steadier conditions of late summer, before tapering off again into the fall. This pattern highlights Chiba's unique climatic rhythm, as moderate winds weave through the seasons, offering a subtle yet refreshing backdrop to everyday life.
Weather in Chiba varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Chiba, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January present a stark contrast in weather patterns. In August, temperatures soar with a minimum of 20°C (69°F) and an average of 27°C (81°F), reaching a maximum of 33°C (92°F). This month is characterized by high humidity at 90% and significant precipitation of 118 mm (4.7 in) over about 13 days, making it quite a wet and steamy time. In contrast, January brings much cooler temperatures, with a minimum of -2°C (28°F), averaging 6°C (43°F), and a maximum of 16°C (61°F). The winter month sees less precipitation at 63 mm (2.5 in) over just 5 days and lower humidity at 76%, creating a much drier and crisp atmosphere. For more detailed information, you can check Chiba weather in January.
August and February present stark contrasts in weather conditions. In August, temperatures range from a minimum of 20°C (69°F) to a maximum of 33°C (92°F), with an average of 27°C (81°F). The month is characterized by high humidity at 90% and significant rainfall, accumulating about 118 mm (4.7 in) over 13 days. In contrast, February experiences much cooler temperatures, with a minimum of 0°C (32°F), an average of 7°C (44°F), and a maximum of 16°C (62°F). Precipitation is also lower, totaling 50 mm (2.0 in) over just 7 days, accompanied by a lower humidity level of 74%. For more detailed information, you can check out Chiba weather in February.
August and March present stark contrasts in weather patterns. August boasts warmer temperatures, with averages reaching around 27°C (81°F) and highs of up to 33°C (92°F). It also carries high humidity at 90%, making it feel quite sultry despite receiving about 118 mm (4.7 in) of precipitation over 13 days. In contrast, March is much cooler, with average temperatures of just 10°C (50°F) and highs peaking at 20°C (68°F). Although it is cooler, March experiences a slightly higher precipitation total of 162 mm (6.4 in), also spread over 13 days, but with lower humidity at 70%. For more details on March weather, you can visit Chiba weather in March.
When comparing the weather in August and April, it's clear that August is significantly warmer, with temperatures ranging from a minimum of 20°C (69°F) to a maximum of 33°C (92°F) and an average temperature of 27°C (81°F). In contrast, April features much cooler temperatures, with a minimum of 4°C (40°F) and a maximum of 24°C (76°F), resulting in an average of only 14°C (57°F). Both months experience notable rainfall, but April sees slightly more precipitation at 137 mm (5.4 in) compared to August's 118 mm (4.7 in). Additionally, August has higher humidity levels at 90%, making it feel more muggy than April's 74%. For a closer look at April's climate specifics, check out Chiba weather in April.
When comparing the weather in August and May, several notable differences emerge. August is characterized by a warmer climate, with minimum temperatures around 20°C (69°F) and average highs reaching 33°C (92°F), while May temperatures are milder, ranging from a minimum of 10°C (51°F) to a maximum of 27°C (81°F). Both months experience considerable rainfall, but May sees a slightly higher amount of precipitation at 147 mm (5.8 in) compared to August's 118 mm (4.7 in), despite only one more rainy day in May. Humidity also plays a significant role, peaking at 90% in August, while May maintains a lower humidity level of 81%. For a more detailed look at May weather specifically, you can check out Chiba weather in May.
When comparing the weather in June and August, notable differences emerge. August tends to be warmer, with average temperatures reaching 27°C (81°F) compared to June's average of 22°C (71°F). Maximum temperatures in August can soar up to 33°C (92°F), while June peaks at a slightly lower 31°C (88°F). In terms of precipitation, June is wetter with 190 mm (7.5 in) over 14 days, whereas August receives less rain at 118 mm (4.7 in) over 13 days. Humidity remains high in both months, but August is slightly more humid at 90% compared to June's 88%. For more detailed information on June's climate, you can check Chiba weather in June.
When comparing the weather in August and July, we see some notable differences. August typically experiences slightly warmer temperatures, with a minimum of 20°C (68°F) and an average of 27°C (81°F), whereas July has a minimum of 19°C (66°F) and a lower average of 25°C (78°F). However, July can reach higher maximum temperatures, hitting 36°C (97°F), compared to August's maximum of 33°C (92°F). Precipitation is also significantly higher in July, with 226 mm (8.9 in) falling over 16 days, compared to August's 118 mm (4.7 in) across 13 days. Both months have high humidity levels, with July slightly higher at 93% compared to August's 90%. For a detailed look at July's weather, visit Chiba weather in July.
August tends to be hotter and more humid than September, with average temperatures around 27°C (81°F) and a maximum reaching 33°C (92°F). In contrast, September sees a reduction in average temperatures, dropping to 24°C (75°F), though the maximum remains close at 32°C (89°F). Although September is slightly cooler, it experiences increased rainfall, with 232 mm (9.1 in) of precipitation over 18 days, compared to August's 118 mm (4.7 in) over 13 days. The humidity level remains relatively high in both months, hovering around 90% for August and decreasing slightly to 86% in September. For more detailed information, check out Chiba weather in September.
August and October present a stark contrast in weather conditions. In August, temperatures soar with a minimum of 20°C (69°F) and maximum highs reaching up to 33°C (92°F), accompanied by high humidity levels at 90%. Rainfall is frequent, occurring on 13 days, totaling 118 mm (4.7 in). Conversely, October experiences much cooler temperatures, with a minimum of 11°C (53°F) and an average of 19°C (66°F), peaking at 28°C (83°F). Rainfall increases significantly, with 313 mm (12.3 in) falling over 17 days, and while humidity drops slightly to 83%, it still contributes to a damp atmosphere. For a deeper look into October's weather patterns, you can refer to Chiba weather in October.
August and November present contrasting weather patterns. In August, temperatures are much warmer, with a minimum of 20°C (69°F) and an average of 27°C (81°F), peaking at 33°C (92°F). The month is also characterized by high humidity at 90% and significant precipitation, totaling 118 mm (4.7 in) over 13 days. In stark contrast, November sees much cooler temperatures, with a minimum of 5°C (41°F) and an average of 14°C (58°F), reaching a maximum of 21°C (71°F). Precipitation remains similar, with 119 mm (4.7 in) falling over just 12 days, but the humidity drops to 80%. For more detailed information about November weather, check out Chiba weather in November.
August and December present stark contrasts in weather conditions. In August, temperatures are warm with a minimum of 20°C (69°F) and an average of 27°C (81°F), peaking at 33°C (92°F). Humidity is notably high at 90%, contributing to a sultry atmosphere, along with significant precipitation totaling 118 mm (4.7 in) over 13 days. In contrast, December features a much cooler climate, with temperatures ranging from a minimum of 0°C (33°F) to an average of 9°C (48°F) and a maximum of 20°C (68°F). Precipitation is lower at 80 mm (3.2 in) across just 8 days, and humidity decreases to 78%, making the end of the year feel much crisper. For more detailed insights, visit Chiba weather in December.
In August, Chiba experiences a notable shift in weather patterns, characterized by warmer temperatures and heightened humidity compared to other months. With maximum temperatures soaring to around 33°C (92°F), the summer heat is undeniable. This month also sees an increase in precipitation as the region receives about 118 mm of rain over 13 rainy days, making it one of the wetter times of the year. The combination of high humidity levels at 90% can create a muggy atmosphere, often leading to a sensation of even greater warmth. For those planning to visit, understanding this unique August climate is essential; you can explore more about seasonal trends by visiting Chiba Climate.