Last updated: August 21, 2025
In May, Fukuoka, Japan experiences a vibrant transition into summer, with temperatures soaring to a maximum of 31°C (88°F). The average temperature hovers around a comfortable 20°C (68°F), while the evenings can dip to a refreshing minimum of 7°C (44°F). This month also welcomes frequent rain, accumulating around 163 mm (6.4 in) over approximately 12 days, adding a lush greenery to the landscape. With humidity levels reaching a notable 84%, visitors can expect a warm and somewhat muggy atmosphere, perfect for experiencing the city’s blossoming beauty and cultural richness.
In May, Fukuoka experiences a delightful transition into warmer weather, with temperatures showcasing a significant rise compared to the earlier months. The average temperature climbs to a pleasant 20°C (68°F), making outdoor activities particularly inviting. Morning and evening chill are minimal, as the minimum temperature settles at 7°C (44°F), while the mercury can soar to a sizzling 31°C (88°F) during the day. This shift not only heralds the arrival of spring in full bloom but also sets the stage for the upcoming heat of summer, offering locals and visitors alike a perfect time to explore the city’s vibrant parks and historic sites. With such warming trends, May is undeniably a favorite for those looking to enjoy Fukuoka's natural beauty and cultural charm.
In May, Fukuoka experiences a significant boost in precipitation, with an impressive total of 163 mm (6.4 in), marking it as one of the wettest months of the year. This uptick in rainfall is accompanied by an increase in rainy days, reaching 12 days, as the city transitions into the more humid summer season. Comparatively, the downpours of May surpass those in the preceding months of January through April, highlighting a clear upward trend in precipitation as spring gives way to summer. As the rains intensify, Fukuoka's lush landscapes thrive, setting the stage for vibrant greenery ahead.
In Fukuoka, Japan, May marks the beginning of an upward trend in humidity that continues through the summer months. With humidity rising to a notable 84% this month, residents and visitors alike can feel the air becoming thicker and more tropical as the season shifts. This increase is a precursor to the even higher levels of 86% seen in June and a peak of 92% in July, setting the stage for a sultry summer. Interestingly, while May's humidity is high, it remains somewhat moderate compared to the oppressive levels of the following months, making it a unique time for outdoor activities before the heat intensifies.
As May arrives in Fukuoka, Japan, residents and visitors should be particularly mindful of the extreme UV Index of 11, matching April’s intensity and signaling the height of sun exposure risks. With a burn time of just 10 minutes, it's crucial to take protective measures seriously during this month, as the sun's rays can quickly cause skin damage. This trend of increasing UV exposure continues from the earlier months of the year, escalating from a moderate index of 4 in January to a strikingly high level in May. As summer approaches, ensuring adequate sun protection becomes imperative. For more detailed insights into the UV levels throughout the year in Fukuoka, check out the Fukuoka UV Index.
UV Risk Categories
May in Fukuoka, Japan, shines brightly with 292 hours of sunshine, marking it as one of the sunniest months of the year. This peak in sunlight follows a steady ascent from January’s modest 179 hours, rising each month to reach April's 281 hours. As spring bursts into full bloom, May enjoys a remarkable increase, reflecting the transition into the warmer season. Interestingly, the city experiences a slight drop in sunshine as summer approaches in June, but May remains a cherished month, perfectly situated between the vibrant blossoms of spring and the allure of summer's warmth. This trend highlights Fukuoka’s delightful climate, where sunshine paints a picturesque backdrop for outdoor adventures and leisurely strolls.
In Fukuoka, Japan, the likelihood of sunny weather in May dips to 30%, marking a noticeable decrease compared to the more promising spring months of April and February, which boast 41% and 44% chances, respectively. As spring transitions into summer, the trend shows a decline in sunny days, culminating in the low percentages seen in July and June. The data suggests that while May may not be the sunniest month, it still holds its own compared to the sweltering summer ahead. An increase in October’s chances to 60% hints at a delightful autumn return of clearer skies, making it a worthwhile time to explore the region's vibrant scenery.
In Fukuoka, Japan, daylight duration varies significantly throughout the year, showcasing a clear trend as the seasons shift. From January to February, daylight remains steady at 10 hours, offering a brief respite before the gradual increase begins. As spring arrives, March sees a slight uptick to 11 hours, paving the way for longer days. By April, daylight surges to 13 hours, creating a delightful ambiance that continues into May. With 14 hours of daylight in June and July, residents can fully embrace the vibrant outdoor activities of summer. As August rolls in, daylight begins to wane slightly but still maintains a healthy 13 hours. The transition into fall brings shorter days, with September at 12 hours, tapering down to 11 hours in October and further decreasing to 10 hours by November. The year concludes with a minimal 9 hours of daylight in December, highlighting the cyclical nature of Fukuoka’s daylight hours and the seasonal changes that define this lively city.
In Fukuoka, Japan, the month of May experiences a gentle breeze with an average wind speed of 2.6 m/s (6 mph), consistent with the calm winds typical for early spring. As temperatures begin to rise, this moderate wind provides a refreshing contrast to the warmer days. Notably, May's wind speed aligns closely with that of January and April, yet dips slightly from the more blustery February. Following this, a gradual decrease in wind speeds is observed in June, signaling the onset of the humid summer season. This trend highlights Fukuoka's transition from brisk, chilly winds to the softer, warmer breezes that characterize the summer months, making May a delightful time to experience the city's lush landscapes.
Weather in Fukuoka varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Fukuoka, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January present contrasting weather patterns. In May, temperatures range from a minimum of 7°C (44°F) to a maximum of 31°C (88°F), with an average of 20°C (68°F). This month is characterized by higher humidity at 84% and significant rainfall, totaling 163 mm (6.4 in) over approximately 12 days. In contrast, January features much cooler conditions, with temperatures ranging from a minimum of -3°C (26°F) to a maximum of 17°C (63°F) and an average of only 6°C (43°F). Precipitation in January is lower, at 58 mm (2.3 in) over about 8 days, and humidity is also less intense at 75%. For more insights on January weather, check out Fukuoka weather in January.
When comparing the weather between May and February, there are notable differences in temperatures and precipitation. May offers a much warmer climate, with average temperatures reaching around 20°C (68°F) and highs peaking at 31°C (88°F), while February's average sits at just 7°C (45°F), with a maximum of 22°C (72°F). Precipitation also varies, as May experiences significantly more rainfall at 163 mm (6.4 inches) over 12 days compared to February's 80 mm (3.1 inches) across 10 days. Additionally, humidity levels are higher in May at 84%, compared to 71% in February, making May feel more humid and warm overall. For a more detailed breakdown of February's weather, you can refer to Fukuoka weather in February.
May and March present quite different weather conditions. In March, temperatures range from a chilly minimum of -1°C (31°F) to an average of 11°C (52°F), peaking at 23°C (73°F), while May enjoys much warmer temperatures, with lows of 7°C (44°F) and highs reaching up to 31°C (88°F). Precipitation is slightly higher in May at 163 mm (6.4 in) over 12 days, compared to March's 121 mm (4.8 in) over 11 days. Additionally, May's humidity level is significantly higher at 84%, making it feel more tropical than the more moderate 71% humidity of March. For more detailed insights, you can check Fukuoka weather in March.
In comparing the weather between April and May, notable differences emerge in both temperature and precipitation. May tends to be significantly warmer, with an average temperature of 20°C (68°F) and a maximum reaching 31°C (88°F), compared to April's average of 15°C (59°F) and a maximum of 28°C (83°F). Additionally, May experiences more precipitation, accumulating 163 mm (6.4 in) over 12 days, while April sees 115 mm (4.5 in) over 9 days. Humidity levels also rise in May to 84%, compared to 78% in April. For a detailed look at April's weather, you can visit Fukuoka weather in April.
In comparing the weather between May and June, June experiences a noticeable increase in temperatures, with average highs reaching 33°C (91°F) compared to May's average maximum of 31°C (88°F). The minimum temperatures also rise significantly, from 7°C (44°F) in May to 14°C (58°F) in June, reflecting a shift toward warmer conditions. Precipitation slightly increases in June, with 199 mm (7.8 in) of rain over 14 days, up from 163 mm (6.4 in) over 12 days in May, and humidity remains relatively high in both months, at 84% for May and 86% for June. For more details, you can check Fukuoka weather in June.
May and July present quite different weather patterns. In May, temperatures range from a cool minimum of 7°C (44°F) to a warm maximum of 31°C (88°F), with an average of 20°C (68°F). The month experiences significant rainfall, totaling 163 mm (6.4 in) over about 12 days, and the humidity is relatively high at 84%. In contrast, July brings much warmer conditions, with a minimum temperature of 18°C (64°F) and a much higher average of 27°C (81°F), peaking at a scorching 36°C (98°F). Rainfall is also more abundant in July, reaching 367 mm (14.4 in) over 20 days, and the humidity increases to 92%. For more specific details, you can check out Fukuoka weather in July.
May and August present quite contrasting weather patterns. In May, temperatures range from a minimum of 7°C (44°F) to a maximum of 31°C (88°F), with an average of 20°C (68°F). The month sees moderate rainfall, totaling 163 mm (6.4 in) over 12 days, and the humidity sits at a relatively comfortable 84%. In comparison, August is significantly warmer, with temperatures ranging from a minimum of 19°C (66°F) to a blistering maximum of 37°C (100°F), averaging 28°C (83°F). The precipitation is also higher in August, reaching 303 mm (11.9 in) across 15 days, accompanied by increased humidity at 91%. For more details about this latter month, check out Fukuoka weather in August.
May and September exhibit distinct weather patterns, reflecting the transition from spring to autumn. In May, temperatures range from a cool 7°C (44°F) to a warm 31°C (88°F), with an average of 20°C (68°F). The month experiences about 163 mm (6.4 in) of precipitation over 12 days, while humidity remains consistently high at 84%. In contrast, September sees higher temperatures, with minimums of 13°C (56°F) and maximums soaring to 35°C (96°F), bringing an average of 24°C (76°F). The month is wetter too, with 206 mm (8.1 in) of rainfall across 15 days, although it maintains the same humidity level of 84%. For a detailed look into September's climate, visit Fukuoka weather in September.
In comparing the weather of May and October, both months exhibit relatively mild temperatures with October being slightly cooler. May boasts a minimum temperature of 7°C (44°F), an average of 20°C (68°F), and a maximum of 31°C (88°F), while in October, the temperatures range from 8°C (47°F) to a maximum of 32°C (89°F), with an average of 19°C (67°F). October sees less precipitation, totaling 113 mm (4.5 in) across about 10 days, compared to May's 163 mm (6.4 in) over 12 days. Humidity remains fairly high in both months, with May at 84% and October slightly lower at 83%. For more insights, you can check out Fukuoka weather in October.
May and November present contrasting weather experiences. In May, temperatures range significantly from a cool minimum of 7°C (44°F) to a warm maximum of 31°C (88°F), with an average of 20°C (68°F). The month sees ample rainfall, totaling 163 mm (6.4 in) over 12 days, and a relatively high humidity of 84%. In comparison, November offers a much cooler climate, with temperatures ranging from a chilly 0°C (32°F) to a milder maximum of 25°C (77°F), averaging 13°C (56°F). Precipitation decreases sharply to 52 mm (2.1 in) over just 7 days, accompanied by a slight decrease in humidity to 81%. For more details about November weather in Fukuoka, you can visit Fukuoka weather in November.
May and December present contrasting weather conditions. In May, temperatures are significantly warmer, with a minimum of 7°C (44°F) and an average of 20°C (68°F), peaking at 31°C (88°F). The month also experiences considerable rainfall, totaling 163 mm (6.4 in) over about 12 days, alongside high humidity levels of 84%. In contrast, December brings a much cooler climate, with temperatures ranging from a minimum of -1°C (31°F) to an average of 8°C (46°F), and a maximum of 23°C (73°F). Precipitation is notably lower in December, with only 68 mm (2.7 in) over 8 days and humidity slightly reduced to 79%. For more details, check out Fukuoka weather in December.
As May unfolds in Fukuoka, the weather transforms into a welcoming embrace of warmth, contrasting sharply with the cooler months that precede it. With temperatures comfortably averaging around 20°C (68°F) and reaching a maximum of 31°C (88°F), this month marks a delightful shift towards summer. Despite the uplift in warmth, the lingering humidity at 84% and occasional rainfall, with about 12 days seeing precipitation totaling 163 mm (6.4 in), remind us that spring is still making its presence felt. This blend of warmth and moisture creates an ideal atmosphere for vibrant outdoor activities. For a deeper understanding of the local climate trends and patterns, be sure to check out Fukuoka Climate.