Last updated: August 21, 2025
In Ishigaki, Japan, May brings a delightful blend of warmth and moisture, creating a vibrant tropical atmosphere. The month's maximum temperature typically reaches around 29°C (85°F), while the average hovers at a comfortable 26°C (79°F). Nighttime offers a mild retreat with minimum temperatures of 21°C (71°F). However, travelers should be prepared for the increased humidity, averaging 84%, and the likelihood of rain, as May sees approximately 139 mm (5.5 in) of precipitation spread over 14 days. This combination of climate factors makes May a lush and dynamic time to experience Ishigaki's natural beauty.
May in Ishigaki, Japan ushers in the warmth of spring, with temperatures that delight both locals and tourists alike. The month begins with a notable rise in warmth, featuring a minimum of 21°C (71°F), an average of 26°C (79°F), and a peak reaching 29°C (85°F). This marks a significant shift from the cooler months preceding it, where lows were in the low teens. As daytime temperatures climb, May promises to be a perfect time for outdoor adventures, allowing visitors to bask in the sun and enjoy stunning coastal views. The steady increase in warmth foreshadows the summer heat that follows in June, making May a sweet spot for those looking to escape the chill and embrace blooming landscapes.
May in Ishigaki, Japan, typically sees 139 mm (5.5 in) of precipitation over 14 days, continuing the wet trend established in the preceding months. This rainfall is consistent with the slight uptick observed in April, as the island transitions towards the more humid summer months. While May's precipitation is not as high as June's anticipated peak of 184 mm (7.2 in), it still contributes significantly to the lush landscape that Ishigaki is known for. The relatively stable rainfall pattern hints at the onset of the rainy season, setting the stage for the heavier downpours that characterize the summer, particularly in August, which averages a substantial 280 mm (11.0 in) across 21 days. Thus, May acts as a meaningful bridge in Ishigaki’s climatological rhythm, balancing vibrant greenery with a pleasant tropical atmosphere.
May ushers in a noteworthy increase in humidity in Ishigaki, Japan, reaching 84%—the peak level for this time of year. This rise marks a continuation of a steady trend observed since April, as the island transitions into its warmer months. Notably, the humidity has been on an upward trajectory since January, where it started at 76%, climbing steadily through the spring. As temperatures rise, the consistent humidity levels throughout May, June, and July suggest a gradual and lush summer environment, making Ishigaki both vibrant and humid as it moves deeper into the season. This trend not only shapes the island’s lush vegetation but also influences the experience of its visitors and residents alike.
In May, Ishigaki, Japan, experiences a significant surge in UV intensity, with an UV Index of 12, categorizing it as extreme. This level of UV exposure means that burn time is critically short, lasting only 10 minutes, urging residents and visitors alike to take necessary precautions against skin damage. This trend of high UV levels continues into the summer months, peaking in June and July with an even higher UV Index of 13. As spring transitions to summer, it's essential to remain vigilant and proactive about sun protection to enjoy the beautiful landscapes safely. For more detailed information on UV levels throughout the year, visit Ishigaki UV Index.
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May brings a delightful peak of sunshine to Ishigaki, Japan, with an impressive 318 hours of radiant daylight. This month stands out as a vibrant crescendo in a progressive trend that sees sunlight steadily increasing from 163 hours in January to a bright 334 hours in July. The sunny days of April, with 273 hours, set the stage for May's sunny embrace, inviting both locals and visitors to bask in the warmth before the summer heat takes full hold in June. As the year unfolds, the generous sunlight in May is not just a prelude to the long summer days, but a reminder of the island's enchanting climate that nurtures its lush landscapes and vibrant culture.
In Ishigaki, Japan, the likelihood of sunny weather in May offers a pleasant balance, with a 32% chance of sun. As spring transitions into summer, this month reflects a dip in sunny days compared to the more vibrant February and April, both showcasing a notable 46% chance. However, May still maintains a charm, sandwiched between the blooming vibrancy of April and the onset of the more overcast days in June. The months leading up to May dish out more sunshine, emphasizing a seasonal trend where late spring paves the way for the humidity of summer. Ultimately, while chances of sunshine in May are moderate, the backdrop of lush scenery and warmer weather makes it a delightful time to explore this island paradise.
In Ishigaki, Japan, the daylight duration showcases a vibrant seasonal rhythm. January starts with around 10 hours of daylight, gradually increasing to 11 hours in February. As spring approaches, March and April bring 12 hours of light, signaling the onset of longer, sunnier days. The trend culminates in May, where daylight reaches a delightful 13 hours, a peak that extends into June and July, ideal for enjoying the region's natural beauty. As summer fades, daylight diminishes slightly in August and stabilizes at 12 hours through September and October, before a gentle decline back to 10 hours in the winter months. This pattern not only reflects the changing seasons but also enriches the island's and its visitors' experiences throughout the year.
In Ishigaki, Japan, the month of May ushers in a gentle breeze with an average wind speed of 5.8 m/s (13 mph), slightly lower than the preceding months. This decrease follows a seasonal pattern, as the winds typically calm down after the brisker gusts of April. Notably, as the year progresses, summer months like July and August tend to see an uptick in wind speeds, reaching averages of 7.2 m/s (16 mph) and 6.1 m/s (14 mph) respectively. In stark contrast, the winds drop to their lowest in September at 5.4 m/s (12 mph), suggesting a lull before the stronger breezes return in October and November. Thus, May presents a harmonious blend of tranquil winds and the early warmth of summer, making it an ideal time for outdoor activities while enjoying Ishigaki's stunning natural landscape.
Weather in Ishigaki varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Ishigaki, focusing on differences in temperature, rainfall, humidity, and UV levels.
May weather in Ishigaki is noticeably warmer and more humid than January, with minimum temperatures around 21°C (71°F) and maximums reaching up to 29°C (85°F). The average temperature in May is 26°C (79°F), accompanied by higher humidity levels at 84%. In contrast, January experiences cooler temperatures, with a minimum of 12°C (55°F) and a maximum of 25°C (76°F), leading to an average of 20°C (69°F). Although January has slightly lower precipitation at 109 mm (4.3 in) compared to May's 139 mm (5.5 in), it features a similar number of rainy days, with precipitation occurring over 15 days. To further explore January weather details, visit Ishigaki weather in January.
May and February offer contrasting weather experiences. In May, temperatures are noticeably warmer, with minimums around 21°C (71°F) and averages peaking at 26°C (79°F), while February features cooler temperatures, ranging from a minimum of 14°C (57°F) to an average of 20°C (69°F). Rainfall is more prevalent in May, boasting 139 mm (5.5 in) over 14 days, compared to February’s 82 mm (3.2 in) during the same number of days. Additionally, May's humidity of 84% creates a muggy atmosphere, while February’s 74% feels more comfortable. For more insights on the February climate, you can check Ishigaki weather in February.
In comparing the weather between March and May, we see a noticeable increase in warmth during the latter month. May experiences a minimum temperature of 21°C (71°F) and averages around 26°C (79°F), whereas March starts slightly cooler with a minimum of 16°C (61°F) and an average of 22°C (71°F). Both months receive similar precipitation levels, with March recording 140 mm (5.5 in) and May at 139 mm (5.5 in), occurring over 14 days in each case. However, May has a higher humidity level at 84%, compared to March's 79%, contributing to a more muggy feel as the month progresses. For more details on March weather, visit Ishigaki weather in March.
In comparing the weather conditions between April and May, we see a noticeable increase in temperature during May, with minimums reaching 21°C (71°F) and averaging 26°C (79°F), compared to April's minimum of 17°C (63°F) and average of 23°C (74°F). Despite this rise in temperature, May experiences slightly less precipitation, with 139 mm (5.5 in) over 14 days, compared to April's 146 mm (5.8 in) over 13 days. Humidity levels also rise slightly in May, sitting at 84% versus April's 82%. Overall, while both months are quite humid and rainy, May tends to be warmer yet marginally drier than April. For more detailed insights, you can check Ishigaki weather in April.
May and June share similar humidity levels at 84%, but June experiences slightly warmer temperatures. In May, the minimum temperature is 21°C (71°F) and averages around 26°C (79°F), while June sees a minimum temperature of 25°C (76°F) and an average of 28°C (82°F). Additionally, June has higher precipitation, totaling 184 mm (7.2 in) over 16 days, compared to May's 139 mm (5.5 in) over 14 days. For more detailed information on June weather, you can visit Ishigaki weather in June.
In comparing the weather in May and July, we see a noticeable increase in temperature during July, where the minimum temperature rises to 27°C (80°F) compared to May's minimum of 21°C (71°F). July also has a slightly higher average temperature of 29°C (84°F) versus 26°C (79°F) in May, and the maximum temperature only inches up to 30°C (87°F). However, July experiences more precipitation, with 182 mm (7.2 in) over 16 days, contrasted with May's 139 mm (5.5 in) over 14 days. Interestingly, the humidity remains consistent at 84% for both months, indicating a similar level of discomfort from heat and moisture, regardless of the temperature differences. For more detailed information, you can check out Ishigaki weather in July.
May and August both feature warm temperatures, but August is noticeably hotter, with an average temperature of 28°C (83°F) compared to May's 26°C (79°F). While May experiences a minimum of 21°C (71°F) and a maximum of 29°C (85°F), August sees temperatures ranging from a minimum of 26°C (79°F) to a maximum of 30°C (86°F). However, August brings significantly more rainfall, with 280 mm (11.0 in) over 21 days, versus May's 139 mm (5.5 in) over 14 days. Humidity levels remain high in both months, with May slightly higher at 84% compared to August's 83%. For more details on August weather, check out Ishigaki weather in August.
May and September offer distinctly warm weather, but there are notable differences in temperature and precipitation. In May, temperatures range from a minimum of 21°C (71°F) to a maximum of 29°C (85°F), with an average of 26°C (79°F). The month experiences significant rainfall, accumulating 139 mm (5.5 in) over 14 days, and has high humidity at 84%. In contrast, September boasts slightly higher temperatures, with a minimum of 25°C (78°F) and a maximum of 30°C (87°F), averaging 28°C (83°F). However, it also sees increased rainfall, totaling 182 mm (7.2 in) across 17 days, with a humidity level of 82%. For more detailed weather insights, check out Ishigaki weather in September.
May and October showcase similar average temperatures, with both months hovering around 26°C (79°F). However, October tends to have a slightly warmer minimum temperature (22°C or 72°F) compared to May's 21°C (71°F). In terms of precipitation, October experiences more rainfall, totaling 173 mm (6.8 in) over 17 days, while May sees 139 mm (5.5 in) spread over 14 days. Despite the increase in rain, October's humidity is marginally lower at 81% compared to May's 84%. For a detailed look at the climate in October, you can visit Ishigaki weather in October.
May and November both offer warm temperatures, but May generally sees higher averages with a minimum of 21°C (71°F) and a maximum of 29°C (85°F), compared to November's minimum of 20°C (68°F) and maximum of 27°C (81°F). While May experiences an average temperature of 26°C (79°F) and has a humidity level of 84%, November's average of 24°C (76°F) comes with a slightly lower humidity at 80%. Precipitation is notable in both months as well, with May receiving 139 mm (5.5 in) over 14 days and November increasing slightly to 151 mm (5.9 in) over 16 days. For more detailed insights into November's weather, check out Ishigaki weather in November.
May and December in Ishigaki present a notable contrast in weather conditions. In May, temperatures range from a minimum of 21°C (71°F) to a maximum of 29°C (85°F), with an average of 26°C (79°F), accompanied by high humidity levels at 84%. Rainfall is common, with an average precipitation of 139 mm (5.5 in) across about 14 days. In comparison, December sees cooler temperatures, with a minimum of 14°C (57°F) and a maximum of 26°C (79°F), averaging 22°C (71°F). Precipitation is higher in December at 197 mm (7.8 in), spread over approximately 20 days, but humidity is slightly lower at 78%. For more detailed information on December weather, check out Ishigaki weather in December.
As May unfolds in Ishigaki, the weather marks a delightful transition that sets it apart from the cooler months. Temperatures rise, averaging a comfortable 26°C (79°F), with the warmth often inviting outdoor adventures. However, the month also welcomes increased precipitation, resulting in about 14 rainy days and a humidity level that hovers around 84%, creating a lush, tropical ambiance. Compared to the drier months, May embodies a unique blend of warmth and rejuvenation, making it a vibrant time to explore the island's natural beauty. For more insights on what to expect year-round, check out Ishigaki Climate.