June Weather in Okinawa, Japan

Last updated: August 21, 2025

In June, Okinawa, Japan experiences a delightful blend of warm temperatures and significant rainfall, creating an inviting yet lively atmosphere. The average temperature hovers around 26°C (80°F), with a maximum reaching up to 29°C (84°F), providing ideal conditions for summer activities. However, visitors should prepare for the frequent downpours, as the region receives approximately 302 mm (11.9 in) of rain over 19 days, resulting in a heightened humidity of 86%. This unique climate fosters lush scenery and vibrant natural beauty, making it a perfect time for exploration and enjoying the island's picturesque landscapes.

June Temperature in Okinawa

In June, Okinawa, Japan transitions into the warm embrace of summer, with temperatures reflecting a notable rise. The minimum temperature climbs to a comfortable 21°C (70°F), while the average soars to a pleasant 26°C (80°F), providing the ideal backdrop for beach outings and outdoor adventures. Days heat up further, peaking at a delightful 29°C (84°F). As the month unfolds, the weather becomes increasingly humid, setting the stage for the vibrant island to burst with life. This warming trend is a prelude to the hotter months ahead, seamlessly bridging the mild temperatures of spring with the summer’s full heat.

June Weather in Okinawa: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Okinawa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Okinawa, June typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec656568707580828382797468
Data source: Temperature data for Okinawa generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

June Precipitation in Okinawa

June marks a significant peak in precipitation for Okinawa, Japan, with an astonishing 302 mm (11.9 in) of rainfall over 19 days. This surge represents a dramatic transition from the preceding months, particularly from May, which, while already generous at 208 mm (8.2 in), seems moderate in comparison. The rainy season truly sets in during June, as the frequency of wet days rises, contributing to the island's lush landscapes. Following June, rainfall decreases in July to 192 mm (7.6 in), but the consistency of summer showers continues, ensuring that Okinawa remains vibrant and green. The trend clearly indicates June as a pivotal month for precipitation, shaping the region's climatic character and ecological richness.

June Precipitation Trends in Okinawa

The chart displays monthly precipitation patterns in Okinawa, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Okinawa, June typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec9197107137208302192206253160104188
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Okinawa

As summer approaches, June marks a peak in humidity levels in Okinawa, Japan, hitting 86%—a notable increase from the already elevated levels of 84% in May. This trend sets the stage for the island’s warm, tropical climate, where humidity gradually ascends from 71% in January and February to its summer highs. Following June, humidity remains at a steady 86% in July before tapering off slightly in August, reflecting the island's lush, vibrant environment. Clearly, Okinawa's early summer months bring a wave of moisture, fostering a tropical ambiance that characterizes this beautiful destination.

June Average Humidity in Okinawa

This chart illustrates the average monthly humidity levels in Okinawa, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Okinawa is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec71%71%76%82%84%86%86%82%82%81%79%75%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Okinawa

In June, Okinawa experiences a persistent UV Index of 13, classifying the sun's rays in the extreme exposure category, similar to the preceding month of May. This sustained intensity means that residents and visitors alike should be particularly cautious, as the burn time is just 10 minutes for unprotected skin. This trend of escalating UV levels is evident from the previous months, where values rose sharply from high in January to extreme by March. With July and August expected to maintain this high UV Index, it’s essential to prioritize sun safety to enjoy the stunning beaches without the risk of severe sunburn. For detailed UV forecasts and information, check Okinawa UV Index.

Maximum UV Index Levels in Okinawa for June

The chart shows the monthly maximum UV Index (UVI) for Okinawa in June, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In June, the maximum UV index in Okinawa typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec7911121313131312996
Data source: Okinawa June UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

June Sunshine in Okinawa

As June dawns in Okinawa, Japan, the island basks in a delightful 264 hours of sunshine, offering a vibrant canvas for outdoor adventures and relaxation. This month follows the sun-drenched anticipation built throughout the spring, where May dazzled with 305 hours of radiant light, the peak of the season before summer's full swing. Interestingly, while June's sunshine hours dip slightly from May, they still reflect the overall warmth and brightness that characterizes Okinawa's transition into summer. The trend clearly indicates an upward trajectory as July and August promise even more sun, with 317 and 319 hours respectively, inviting locals and visitors alike to embrace the endless summer spirit that Okinawa is renowned for. This shift not only enhances the island's allure but also serves as a reminder of the enchanting beauty that awaits in the months ahead.

Monthly Sunshine Duration in Okinawa: June Highlighted

The June sunshine duration represents the total number of hours Okinawa experiences direct sunlight during the month of June, excluding cloudy or obstructed periods. This chart compares the sunshine duration of June with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec154h203h268h269h305h264h317h319h295h274h228h192h
Data source: Okinawa June Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Okinawa During June

In Okinawa, Japan, June marks a notable shift in weather patterns, with the likelihood of sunny days dipping to a mere 9%. This stark decline follows a trend observed from the previous months; while the chances of sunshine begin relatively strong in early spring, peaking at 46% in March, they steadily wane through April and May. As the summer approaches, the sun re-emerges, with July and August bouncing back to 30% and 39% respectively. Ultimately, June serves as a transitional month characterized by increased rainfall, setting the stage for the sun to reclaim its place as summer unfolds.

Percentage of Sunny Days in June in Okinawa

The chart illustrates the percentage of sunny days in Okinawa throughout the year, with June highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Okinawa experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec24%42%46%39%30%9%30%39%59%51%44%35%
Data source: Okinawa June chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Okinawa in June

In Okinawa, Japan, June marks a delightful continuation of the island's long summer days, featuring 13 hours of daylight that mirror the previous month. As the year unfolds, the trend shows a steady increase in daylight from January's 10 hours to a peak in the summer months. While March, April, and May enjoy gradual growth as daylight hours increase, June’s consistency signals the arrival of summer's vibrant energy, inviting residents and visitors alike to bask in the sun. This pattern continues into July and August, where daylight remains at a warm 13 hours, before gradually receding in the fall. The overall trend indicates a significant increase in sunlight during these summer months, enriching the natural beauty and outdoor experiences for which Okinawa is celebrated.

Average Daylight Hours in Okinawa for June

The chart illustrates the variation in daylight duration in Okinawa throughout the year, with June highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 41m11h 15m12h12h 46m13h 25m13h 44m13h 34m13h 1m12h 16m11h 30m10h 51m10h 30m
Data source: Okinawa daylight hours, calculated by summing the hours between sunrise and sunset for each day.

June Winds in Okinawa

In June, Okinawa experiences a gentle breeze with an average wind speed of 6.5 m/s (15 mph), marking a transition from the stronger gusts of spring to the calmer winds of summer. This slight increase from May’s winds continues to hint at the forthcoming summer heat, as July boasts a notable uptick to 7.5 m/s (17 mph). Interestingly, the winds in June are relatively mild compared to the rest of the year, especially when juxtaposed with the stronger speeds seen in January and October, both surpassing 8 m/s. As tropical storms approach in the later summer months, the wind patterns hint at a dynamic climate, where these breezes play a crucial role in shaping the island’s weather and ambiance. Overall, June sets a balanced stage for visitors, providing just enough wind to enhance the island's tropical allure without overwhelming the serenity of its beautiful landscapes.

Average June Wind Speed in Okinawa

The chart displays monthly wind speed patterns in Okinawa, with values for each month shown alongside June's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how June's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec8.26.95.97.66.36.5 m/s7.56.95.47.97.97.7
Data source: Okinawa June wind data, generated using information from the Copernicus Climate Change Service.

How June Weather in Okinawa Compares to Other Months

Weather in Okinawa varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in Okinawa, focusing on differences in temperature, rainfall, humidity, and UV levels.

June and January in Okinawa present a striking contrast in weather conditions. June boasts warmer temperatures, with a minimum of 21°C (70°F) and an average of 26°C (80°F), reaching a maximum of 29°C (84°F). However, it is also the wettest month, featuring 302 mm (11.9 in) of precipitation over 19 days and a high humidity level of 86%.

In contrast, January offers cooler temperatures, with a minimum of 12°C (54°F), averaging 19°C (66°F), and a maximum of 24°C (75°F). The precipitation is significantly lower at 91 mm (3.6 in) spread across 11 days, and humidity is reduced to 71%. For more details, you can check Okinawa weather in January.

In comparing the weather between June and February, June emerges as a much warmer and wetter month. The average temperature in June reaches 26°C (80°F), with highs peaking at 29°C (84°F), while February's average is cooler at 19°C (66°F), with maximums of 24°C (76°F). Additionally, June experiences significantly higher precipitation, totaling 302 mm (11.9 in) over 19 days, compared to February's 97 mm (3.8 in) spread across just 12 days. The humidity levels also differ, with June's humidity at 86%, contrasting with February's lower 71%. For more detailed insights, visit Okinawa weather in February.

When comparing the weather in June and March, we see distinct differences in temperature and humidity. June boasts warmer temperatures, with a minimum of 21°C (70°F) and an average of 26°C (80°F), compared to March, which has a minimum of 14°C (57°F) and an average of 20°C (68°F). Additionally, June experiences significantly higher rainfall, totaling 302 mm (11.9 in) over 19 days, whereas March sees just 107 mm (4.2 in) over 11 days. The humidity levels are also higher in June at 86%, compared to March's 76%, making June feel more tropical and damp. For a detailed look at the climate during this time, you can refer to Okinawa weather in March.

In comparing the weather of June and April, June is notably warmer, with average temperatures ranging from a minimum of 21°C (70°F) to a maximum of 29°C (84°F), while April experiences milder temperatures, averaging between 15°C (60°F) and 26°C (79°F). Additionally, June sees significantly more rainfall, with 302 mm (11.9 in) over 19 days, compared to April's 137 mm (5.4 in) over 11 days. The humidity levels are also slightly higher in June at 86%, compared to 82% in April. For a more detailed look at April's weather patterns, you can check out Okinawa weather in April.

In June, the weather in Okinawa tends to be warmer and wetter compared to May. With minimum temperatures rising to 21°C (70°F) and an average of 26°C (80°F), June exhibits a slightly higher temperature profile than May's range of 19°C (67°F) to an average of 24°C (76°F). Additionally, June experiences significantly more precipitation, with 302 mm (11.9 in) falling over 19 days, compared to May's 208 mm (8.2 in) over just 12 days. The humidity also sees a slight increase in June at 86%, compared to May's 84%, creating a more tropical atmosphere in the early summer months. For those interested in learning more about May’s climate specifics, you can visit Okinawa weather in May.

In June, the weather tends to be warmer with average temperatures ranging from a minimum of 21°C (70°F) to a maximum of 29°C (84°F), while July sees slightly higher averages, with temperatures ranging from 26°C (78°F) to 30°C (87°F). However, June experiences significantly more rainfall, with 302 mm (11.9 in) over 19 days, compared to July's 192 mm (7.6 in) over just 13 days. Despite the increase in temperature, both months share a high humidity level of 86%. For more detailed insights, visit Okinawa weather in July.

In June, the weather presents a warm and humid atmosphere, with average temperatures ranging from a minimum of 21°C (70°F) to a maximum of 29°C (84°F). This month experiences significant rainfall, totaling 302 mm (11.9 inches) over 19 days, accompanied by high humidity levels averaging around 86%.

In contrast, August showcases slightly warmer conditions, with average temperatures from a minimum of 26°C (78°F) to a maximum of 30°C (87°F). Precipitation decreases to 205 mm (8.1 inches) over 17 days, and humidity dips slightly to 82%. Overall, while both months are warm and humid, August tends to be drier and a bit warmer than June. For more detailed information, you can check Okinawa weather in August.

June and September in Okinawa present distinct weather characteristics. June typically has slightly lower temperatures, with a minimum of 21°C (70°F) and an average of 26°C (80°F), while September enjoys warmer conditions, starting at a minimum of 24°C (75°F) and averaging 28°C (82°F). Both months experience similar rainfall, with June seeing 302 mm (11.9 in) over 19 days and September having a bit less at 253 mm (10.0 in), although both also have the same number of rainy days. In terms of humidity, June is more humid at 86%, compared to September’s 82%. Overall, while both months share some commonalities, September tends to be warmer and slightly less humid. For more detailed insights into September weather, check out Okinawa weather in September.

June and October in Okinawa share similar temperature ranges, with both months featuring minimum temperatures around 21°C (70°F), average temperatures of 26°C (80°F), and maximums peaking at 29°C (84°F). However, June is notably wetter, receiving approximately 302 mm (11.9 in) of rain over 19 days, while October experiences significantly less rainfall at 160 mm (6.3 in) across just 13 days. Additionally, the humidity in June is higher at 86%, compared to October's 80%. For a detailed look at October's weather, check out Okinawa weather in October.

June and November present distinct weather characteristics. In June, temperatures range from a minimum of 21°C (70°F) to a maximum of 29°C (84°F), with an average of 26°C (80°F). This month is marked by considerable rainfall, totaling 302 mm (11.9 in) over 19 days and high humidity levels at 86%. In contrast, November features slightly cooler temperatures, with a minimum of 19°C (67°F) and a maximum of 27°C (80°F), averaging 23°C (74°F). November is drier, receiving only 103 mm (4.1 in) of precipitation across 11 days, and the humidity drops to 79%. For more details, check out Okinawa weather in November.

June and December in Okinawa exhibit contrasting weather patterns. June tends to be warmer, with temperatures ranging from a minimum of 21°C (70°F) to a maximum of 29°C (84°F), while December's temperatures are cooler, fluctuating between 14°C (58°F) and 25°C (78°F). Rainfall is more abundant in June, accumulating 302 mm (11.9 in) over 19 days, compared to December's 188 mm (7.4 in) over just 16 days. Additionally, June's humidity is significantly higher at 86%, whereas December boasts a more comfortable humidity level of 75%. For a deeper insight into Okinawa's December climate, you can check this link: Okinawa weather in December.

Compare Okinawa's Climate with Cities Worldwide

Conclusion: What to Expect From June Weather in Okinawa

As June unfolds in Okinawa, the island experiences a notable shift in weather patterns, marked by increased humidity and precipitation compared to the drier months preceding it. With daily highs averaging a balmy 26°C (80°F), the warm temperatures are accompanied by a significant uptick in rainfall over 19 days, making it a lush and vibrant time of year. This blend of tropical warmth and moisture creates a unique atmosphere, perfect for those looking to enjoy the natural beauty of Okinawa, although visitors should be prepared for the occasional afternoon shower. For a more detailed understanding of what to expect, check out the monthly trends in the Okinawa Climate.