Last updated: August 21, 2025
August in Ogasawara, Japan offers a warm tropical climate, with maximum temperatures reaching 29°C (85°F) and an average of 28°C (82°F), providing ideal conditions for outdoor activities. The evenings are pleasant, with minimum temperatures around 26°C (79°F), perfect for stargazing or enjoying local cuisine. However, this month also sees about 93 mm (3.7 in) of rainfall spread over 13 days, contributing to the lush landscapes that characterize the region. With humidity levels at a high 84%, visitors should prepare for a muggy experience. Overall, August presents both the warmth and occasional rain that define this enchanting island destination.
August in Ogasawara, Japan, marks the peak of summer, characterized by warm temperatures that invite both relaxation and adventure. With minimums hovering around 26°C (79°F) and averages reaching 28°C (82°F), it's the perfect time for beach outings and island explorations. As the heat continues with maximums often touching 29°C (85°F), visitors can enjoy long, sun-soaked days. Compared to the cooler months earlier in the year, August showcases a significant jump in warmth, setting the stage for vibrant tropical experiences amidst stunning natural beauty. This trend of rising temperatures not only enhances outdoor activities but also highlights Ogasawara’s allure as a summer destination.
In August, Ogasawara experiences a notable shift in its precipitation patterns, receiving 93 mm (3.7 in) of rainfall over approximately 13 days. This amount is slightly lower than the more abundant rains in May and June, which typically see heavier downpours at 178 mm and 166 mm, respectively. Interestingly, August marks the transition into the wetter months, as rainfall begins to ramp up again in September with 181 mm. Overall, the 13 days of rainfall in August align with the early summer trends, demonstrating that while the rains may ease slightly compared to the preceding months, they are still a crucial part of the tropical climate that characterizes Ogasawara's summer.
In Ogasawara, Japan, the summer months bring a notable rise in humidity, peaking in June at an impressive 93%. Although August experiences a slight dip to 84%, it remains significantly higher than the earlier months of the year. As spring transitions to summer, humidity steadily increases, starting from 69% in January and climbing to 87% by May. Following August, humidity levels gradually decrease again, with September maintaining a close level at 85% and October at 82%. This pattern highlights a warm, humid climate during mid-year, making August a quintessential example of Ogasawara's tropical allure.
During August, Ogasawara, Japan, experiences a UV Index of 12, placing it in the extreme exposure category with a burn time of just 10 minutes. This marks a continuation of the trend seen over the summer months, where the UV Index consistently hovers at high levels, peaking at 13 in both June and July. As the summer wanes, the UV Index in Ogasawara holds steady, reminding residents and visitors alike of the necessity for sun protection. With only a slight drop in September, the region remains a hotspot for UV exposure. For detailed information on this crucial aspect of summer safety, explore the Ogasawara UV Index.
UV Risk Categories
In August, the sun shines brightly in Ogasawara, delivering 327 hours of glorious sunlight, continuing the trend of abundant daylight seen throughout the summer months. Following a peak in July with 342 hours, August brings a slight dip yet remains impressively high compared to earlier months. The sunshine begins to mellow, yet it propels into an increasingly golden September with 309 hours still bringing warmth and vibrancy to the islands. This month stands as a testament to Ogasawara’s summery allure, with daylight hours peaking in the heart of summer and gradually transitioning towards the cooler autumn months. The trend marks a delightful embrace of sunshine as locals and visitors alike savor the beauty of Ogasawara's natural landscape under the generous August rays.
August in Ogasawara, Japan, boasts a promising 52% chance of sunny weather, making it the sunniest month of the year. This peak contrasts sharply with the cooler winter months, where January starts at a mere 26%. As the seasons shift, the likelihood of sunshine gradually increases, reaching a high in the summer, with July trailing closely at 36%. Following August, the chances remain relatively high in September (46%) and October (49%), but they do not quite match the vibrant sun-filled days of August. This trend highlights a clear progression towards brighter skies as summer unfolds, making August an ideal time for sun enthusiasts to enjoy all the beauty Ogasawara has to offer.
In Ogasawara, Japan, the month of August offers an abundance of daylight, with 13 hours of sun illuminating the skies, maintaining the same duration as the preceding months of June and July. This peak in daylight hours reflects a consistent trend through the summer, where the days grow longer, culminating in a beautifully bright August. As the year progresses, the daylight gradually decreases in September, marking the transition towards autumn. The gradual shift from longer days to shorter ones creates a rhythmic pattern in Ogasawara's natural beauty, allowing residents and visitors alike to enjoy the sun-drenched landscapes before the light wanes in the fall.
During August, the winds in Ogasawara, Japan, tend to be gentle, with an average speed of 5.2 m/s (12 mph), marking a slight uptick from the calmer months of July and May. This soft breeze contrasts with the stronger gusts found in surrounding months, particularly April and October, where winds reach up to 8.0 m/s (18 mph). Interestingly, despite the shift to a lighter breeze in summer, August maintains a consistency typical of the late summer months, aligning with the gradual decline seen in early autumn. This delicate balance creates a tranquil atmosphere, perfect for enjoying the archipelago’s stunning natural beauty while offering respite from the more vigorous winds earlier in the year.
Weather in Ogasawara varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Ogasawara, focusing on differences in temperature, rainfall, humidity, and UV levels.
In August, the weather is characterized by warm temperatures, with a minimum of 26°C (79°F) and an average of 28°C (82°F), reaching a maximum of 29°C (85°F). The month also experiences significant humidity at 84%, along with considerable rainfall, totaling 93 mm (3.7 in) over 13 days. In contrast, January offers a much cooler climate, with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 24°C (75°F) and an average of 19°C (66°F). Precipitation is lighter, at 59 mm (2.3 in) over just 8 days, and the humidity is notably lower at 69%. For more detailed information on January weather, you can check Ogasawara weather in January.
August and February present contrasting weather conditions. In August, the temperatures are significantly warmer, with minimums around 26°C (79°F) and average highs reaching 29°C (85°F). This month also experiences higher humidity at 84%, alongside an average of 93 mm (3.7 in) of precipitation spread over 13 days. In stark contrast, February is cooler, featuring minimum temperatures of 14°C (58°F) and average highs of 23°C (73°F), with a total precipitation of just 37 mm (1.5 in) on about 6 days. The humidity is also lower in February at 69%. For more detailed information on February weather, you can check Ogasawara weather in February.
In comparing August and March weather, August tends to be significantly warmer and more humid than March. August experiences minimum temperatures around 26°C (79°F), with average highs reaching 29°C (85°F) and humidity levels soaring to 84%. In contrast, March sees much cooler temperatures, with lows of 15°C (59°F) and averages of 20°C (68°F), along with lower humidity at 74%. Additionally, while both months experience some rainfall, August has higher precipitation at 93 mm (3.7 in) over 13 days, compared to March's 69 mm (2.7 in) over just 9 days. For more specific details about the weather in March, you can check Ogasawara weather in March.
When comparing the weather in August and April, August is notably warmer with average temperatures ranging from a minimum of 26°C (79°F) to a maximum of 29°C (85°F), while April sees cooler temperatures with averages between 16°C (60°F) and 25°C (77°F). Humidity levels are higher in August at 84%, compared to 81% in April, contributing to a more tropical feel during the summer month. Precipitation is similar, with August receiving about 93 mm over 13 days and April slightly less at 94 mm over 9 days. For more detailed weather information about April, you can refer to Ogasawara weather in April.
When comparing the weather in August and May, August tends to be warmer with average temperatures ranging from 26°C (79°F) to a maximum of 29°C (85°F), while May offers cooler averages between 18°C (65°F) and 27°C (81°F). In terms of precipitation, May is significantly wetter with 178 mm (7.0 in) over 12 days compared to August's 93 mm (3.7 in) across 13 days. Both months experience high humidity levels, but August's average humidity is slightly lower at 84% compared to May's 87%. For more details, you can check Ogasawara weather in May.
When comparing the weather in August to June, there are noticeable differences in temperature and precipitation. August tends to be warmer with minimum temperatures around 26°C (79°F) and average highs reaching 29°C (85°F). In contrast, June starts cooler with minimum temperatures of 21°C (70°F) and average highs of 28°C (83°F). However, June experiences significantly higher rainfall, accumulating 166 mm (6.5 in) over 13 days, whereas August sees much less at 93 mm (3.7 in), also over 13 days. Humidity levels are also higher in June at 93% compared to 84% in August. For a more detailed look at June weather, you can visit Ogasawara weather in June.
In comparing the weather between July and August, both months exhibit a similar temperature range, with August experiencing slightly higher minimum and average temperatures. July has a minimum temperature of 25°C (77°F) and averages 27°C (81°F), while August's minimum is 26°C (79°F) with an average of 28°C (82°F). Precipitation levels are also quite close, with July receiving 100 mm (3.9 in) over 14 days and August totaling 93 mm (3.7 in) across 13 days. However, humidity is somewhat lower in August at 84%, compared to July's 88%. For more detailed insights, you can check Ogasawara weather in July.
In August, the weather is characterized by warm temperatures, with a minimum of 26°C (79°F) and an average of 28°C (82°F), peaking at a maximum of 29°C (85°F). However, this month also sees significant precipitation, totaling 93 mm (3.7 in) over 13 days, accompanied by high humidity at 84%. In contrast, September offers slightly warmer conditions with a minimum temperature of 25°C (77°F) and an average of 28°C (82°F), rising to a maximum of 30°C (86°F). Rainfall increases notably in September, reaching 181 mm (7.1 in) over 16 days, while humidity rises marginally to 85%. For more detailed information, you can check Ogasawara weather in September.
In August, the weather is generally hot and humid, with average temperatures around 28°C (82°F) and a high of 29°C (85°F). However, it also brings significant rainfall, with 93 mm of precipitation over 13 days, contributing to the high humidity of 84%. In contrast, October experiences slightly cooler temperatures, with averages of 27°C (81°F) and a minimum of 21°C (71°F). Nonetheless, it tends to be wetter, with 158 mm of precipitation across 19 days, while maintaining a humidity level of 82%. For more details on October weather, you can visit Ogasawara weather in October.
In August, the weather is characterized by warmer temperatures, with a minimum of 26°C (79°F) and an average around 28°C (82°F), reaching a maximum of 29°C (85°F). The month experiences significant humidity at 84%, alongside 93 mm (3.7 in) of precipitation spread over 13 days. In contrast, November offers a cooler climate, featuring a minimum temperature of 19°C (67°F) and a more moderate average of 24°C (76°F). While November remains relatively humid at 80%, it sees increased rainfall, totaling 131 mm (5.1 in) over 14 days. For a detailed overview of the seasonal conditions, you can visit Ogasawara weather in November.
August and December present a distinct contrast in weather patterns. In August, temperatures are notably warmer, ranging from a minimum of 26°C (79°F) to a maximum of 29°C (85°F), accompanied by high humidity levels of 84%. Rainfall is frequent, with 93 mm (3.7 in) falling over 13 days. In contrast, December sees cooler temperatures, with a range from 17°C (63°F) to 26°C (78°F) and average humidity dropping to 75%. While December experiences more rainfall overall, with 167 mm (6.6 in) over 11 days, the weather is generally more temperate compared to the sweltering summer month of August. For more detailed information, you can check out Ogasawara weather in December.
August in Ogasawara is characterized by warm temperatures and high humidity, setting it apart from the cooler months that precede and follow it. With average highs hovering around 28°C and frequent rainfall on about half the month’s days, it marks a distinct shift toward a more tropically invigorating climate. This blend of warmth and moisture often brings a lush vibrancy to the islands, making it a unique time for visitors to experience the natural beauty of the area. For a more detailed overview of seasonal changes and what to expect throughout the year, check out the Ogasawara Climate.