Last updated: August 21, 2025
In August, Fukuoka experiences a hot and humid climate, with maximum temperatures reaching up to 37°C (100°F) and an average of 28°C (83°F), providing a steamy backdrop for the bustling city. Visitors should prepare for the wet season, as the month sees around 303 mm (11.9 in) of rainfall spread over approximately 15 days. With humidity levels soaring at 91%, the air feels heavy, making it essential for residents and travelers alike to stay hydrated and embrace the warmth while exploring Fukuoka's vibrant summer offerings.
In August, Fukuoka experiences its warmest temperatures of the year, with minimums hovering around 19°C (66°F) and averages reaching a sultry 28°C (83°F). The heat peaks with a maximum of 37°C (100°F), marking the height of summer and inviting locals and tourists alike to enjoy the vibrant outdoor festivities. This month transitions smoothly from the sweltering heat of July, which showcases a similar upward trend, making August a continuation of Fukuoka's summer warmth. As the days lengthen and the sun blazes down, it's the perfect time to indulge in the city’s rich culture and delicious cuisine while soaking up the sun.
In August, Fukuoka experiences significant rainfall, with an impressive 303 mm (11.9 in) recorded over 15 days. This places it as one of the wetter months of the year, following the peak rainfall of 367 mm (14.4 in) seen in July. While August's precipitation is substantial, it marks a notable decrease compared to July's torrential downpour, yet still remains higher than several months earlier in the season. This pattern highlights the summer monsoon's influence, as moisture-laden air continues to bring frequent showers, creating a humid climate. As September approaches, the rainfall begins to taper, suggesting a gradual transition toward drier autumn conditions.
Fukuoka, Japan experiences a notable increase in humidity through the summer months, culminating in August, where humidity hovers at a steamy 91%. This trend begins in May with a rise to 84%, escalating sharply as temperatures climb. By July, residents face the peak humidity of 92%, providing a muggy atmosphere that lingers into August. Although there is a slight decrease to 91% in August, the stickiness remains palpable before a more significant drop begins in September. Overall, the data illustrates a pattern of progressively higher humidity levels as the year unfolds, peaking mid-summer before tapering off in the fall.
In August, Fukuoka experiences a peak UV Index of 12, classifying it under the extreme exposure category, which means sunburn can occur in as little as 10 minutes. This trend of high UV levels is consistent with the preceding months of July and June, where the UV Index also reached 11. The summer months not only intensify UV radiation but highlight the importance of sun protection, especially as we transition from June into August. Observing the data, one can see a pattern of increasing UV exposure from January’s moderate levels to the extreme highs of summer. For more in-depth information about UV exposure and protection, visit Fukuoka UV Index.
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In August, Fukuoka basks in an impressive 304 hours of sunshine, making it the sunniest month of the year. This peak is part of a vibrant trend where daylight steadily increases from the beginning of the year, starting with a modest 179 hours in January and climbing consistently through the warmer months. The steady rise from 262 hours in March to summer highs reflects not only the warming weather but also the city's embrace of longer days, providing locals and visitors alike with ample opportunity to explore its lively streets and picturesque landscapes. However, as September rolls in, sunshine hours drop to 256, signaling the gentle transition into autumn.
In Fukuoka, Japan, the likelihood of sunny weather in August stands at 25%, marking one of the lower probabilities for the year. This trend is consistent with the preceding summer months, as July and June show even less chance of sunshine at 19% and 22%, respectively. Comparatively, the sun starts to make a more significant appearance in October, with a 60% chance, indicating a transition toward clearer skies as summer gives way to fall. Overall, August reflects a pattern of decreased sunshine amidst the sweltering summer heat, making it a period where overcast skies and humidity often take precedence over sunny days.
In Fukuoka, Japan, August boasts a daylight duration of 13 hours, emblematic of the summer season's lingering warmth. This month marks a slight decline from the peak of 14 hours enjoyed in June and July, as the days gradually begin to shorten in anticipation of autumn. Following the steady increase in daylight from the winter months, where January and February each offer 10 hours, Fukuoka's daylight hours peak during the vibrant summer. The trend clearly illustrates a seasonal ebb and flow, with the horizon slowly dimming as September arrives, providing a gentle reminder of the changing seasons ahead.
In August, Fukuoka experiences a gentle lull in wind activity, with average speeds dropping to 2.2 m/s (5 mph). This trend continues the trend set in the summer months, where wind speeds tend to be consistently lower, peaking at 2.3 m/s (5 mph) in July. As the summer heat settles in, the breezes become subtler, providing a warm, soft caress rather than a refreshing gust. Interestingly, the wind patterns in August mirror those of September, suggesting a transitional phase as the city gradually shifts towards autumn. This mellow wind quality in August invites residents and visitors alike to enjoy the serene atmosphere Fukuoka offers during the summer's closing chapter.
Weather in Fukuoka varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Fukuoka, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January present contrasting weather experiences. In August, temperatures soar, with averages around 28°C (83°F) and maxima reaching up to 37°C (100°F), coupled with high humidity levels at 91%. This month not only brings warmth but also substantial rainfall, averaging 303 mm (11.9 in) over about 15 days. In stark contrast, January features much cooler conditions, with average temperatures plummeting to 6°C (43°F) and minimums dipping to -3°C (26°F). Precipitation is minimal in January, totaling only 58 mm (2.3 in) over 8 days, and humidity is comparatively lower at 75%. For more specific weather details in January, check out Fukuoka weather in January.
August and February present starkly contrasting weather patterns. In August, temperatures soar with a minimum of 19°C (66°F), an average of 28°C (83°F), and highs reaching up to 37°C (100°F), accompanied by high humidity levels of 91%. This month also sees significant rainfall, with around 303 mm (11.9 in) over approximately 15 days. In contrast, February brings cooler conditions, with temperatures ranging from a low of -3°C (26°F) to an average of 7°C (45°F), peaking at 22°C (72°F). Precipitation in February is much lower, totaling 80 mm (3.1 in) over 10 days, and humidity levels are also reduced to 71%. For a closer look at February weather specifics, you can visit Fukuoka weather in February.
Comparing August and March weather highlights the stark seasonal contrasts. August boasts a warm average temperature of 28°C (83°F), reaching highs of 37°C (100°F), alongside high humidity at 91%. In contrast, March presents a much cooler climate, with an average temperature of 11°C (52°F) and a maximum of 23°C (73°F), creating a refreshing environment. Additionally, August experiences substantial rainfall, totaling 303 mm (11.9 in) over 15 days, while March has significantly less precipitation at 121 mm (4.8 in) over 11 days. For a deeper look at March’s weather conditions, visit Fukuoka weather in March.
When comparing the weather in August and April, the differences are quite pronounced. August is significantly warmer, with average temperatures reaching 28°C (83°F) and maximums soaring up to 37°C (100°F), while April experiences a more moderate average of 15°C (59°F) and a maximum of 28°C (83°F). Additionally, August is much more humid, with humidity levels around 91%, compared to April's 78%. Precipitation is also noteworthy; August receives 303 mm (11.9 in) over 15 days, making it a wetter month than April, which sees only 115 mm (4.5 in) over 9 days. For more detailed information, you can check Fukuoka weather in April.
August weather is characterized by significantly higher temperatures compared to May, with average daily highs reaching 28°C (83°F) and occasionally peaking at 37°C (100°F). In contrast, May offers a milder climate, with average temperatures around 20°C (68°F) and maximums of 31°C (88°F). Additionally, August experiences more precipitation, totaling 303 mm (11.9 in) over 15 days, compared to May’s 163 mm (6.4 in) across 12 days. The humidity is also higher in August at 91%, compared to May’s 84%. For more details about May weather, you can visit Fukuoka weather in May.
August is typically warmer and more humid than June, with average temperatures reaching 28°C (83°F) and maximums soaring up to 37°C (100°F), compared to June's average of 23°C (74°F) and maximum of 33°C (91°F). Additionally, August experiences heavier rainfall, with 303 mm (11.9 in) of precipitation over 15 days, while June sees 199 mm (7.8 in) over 14 days. Humidity also increases during August, peaking at 91% compared to June's 86%. For a more detailed look at June's weather, you can visit Fukuoka weather in June.
In comparing the weather between July and August, both months exhibit high temperatures and humidity typical of summer. August generally experiences slightly warmer temperatures, with a minimum of 19°C (66°F) and an average of 28°C (83°F), compared to July's minimum of 18°C (64°F) and average of 27°C (81°F). The maximum temperatures are also marginally higher in August, reaching up to 37°C (100°F), whereas July sees a peak of 36°C (98°F). However, August has more precipitation, totaling 303 mm (11.9 in) over 15 days, while July records a higher amount of 367 mm (14.4 in) over 20 days, making it somewhat wetter despite the slightly drier conditions in August. Humidity remains quite high in both months, with August at 91% and July at 92%. For a more detailed look at July's weather, you can visit Fukuoka weather in July.
August in Fukuoka is characterized by hot and humid conditions, with temperatures ranging from a minimum of 19°C (66°F) to a scorching maximum of 37°C (100°F) and an average of 28°C (83°F). The month also sees significant rainfall, with 303 mm (11.9 in) of precipitation spread over 15 days, resulting in high humidity levels around 91%.
In contrast, September brings a noticeable drop in temperature, with minimums of 13°C (56°F) and maximums reaching 35°C (96°F), averaging 24°C (76°F). Although it still experiences rainfall on 15 days, the total precipitation decreases to 206 mm (8.1 in), and humidity levels also decline to 84%. For more detailed information, you can check Fukuoka weather in September.
In August, the weather is characterized by high temperatures, with average highs reaching 28°C (83°F) and peaks of up to 37°C (100°F). The month also sees considerable rainfall, totaling 303 mm (11.9 in) over about 15 days, and a high humidity level of 91%. In contrast, October offers a much cooler climate, featuring an average temperature of 19°C (67°F) and a maximum of 32°C (89°F). Rainfall decreases significantly to 113 mm (4.5 in) over just 10 days, along with a lower humidity of 83%. For more detailed information on October weather, you can visit Fukuoka weather in October.
August and November present strikingly different weather patterns. In August, temperatures soar with a minimum of 19°C (66°F) and a scorching maximum of 37°C (100°F), accompanied by high humidity levels of 91%. This month also sees significant rainfall, totaling 303 mm (11.9 in) over about 15 days. In contrast, November brings a much cooler climate, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 25°C (77°F) and an average of 13°C (56°F). Rainfall decreases significantly to just 52 mm (2.1 in) over 7 days, and humidity remains lower at 81%. For a more detailed look at the weather trends, you can check Fukuoka weather in November.
In August, the weather is characterized by high temperatures, with a minimum of 19°C (66°F) and an average reaching up to 28°C (83°F), while the maximum can soar to 37°C (100°F). This month is also notably humid, with an average humidity of 91% and substantial rainfall totaling 303 mm (11.9 in) across 15 days. In contrast, December sees much cooler temperatures, with a minimum of -1°C (31°F) and an average of 8°C (46°F), peaking at 23°C (73°F). Precipitation is significantly lower during this month, with only 68 mm (2.7 in) over 8 days, and the humidity drops to 79%. For more detailed information, you can explore Fukuoka weather in December.
August in Fukuoka is characterized by a sweltering warmth that sets it apart from the rest of the year. With maximum temperatures often reaching up to 37°C, the month invites both locals and visitors to seek relief in the city's vibrant indoor spaces and soothing beaches. Humidity levels soar to around 91%, making the air feel even warmer, while frequent precipitation—averaging about 303 mm over 15 days—brings brief but intense rainstorms, adding a refreshing break from the heat. This combination of high temperatures and abundant rainfall creates a distinct summer atmosphere that is rich with both vibrancy and challenge. For more insights on what to expect throughout the year, visit Fukuoka Climate.