May Weather in Uwajima, Japan

Last updated: August 21, 2025

May in Uwajima, Japan offers a delightful blend of spring warmth and invigorating rainfall. With maximum temperatures reaching 30°C (87°F) and an average of 20°C (68°F), the month welcomes pleasant days perfect for exploring the local scenery. However, as humidity levels hover around 84%, the air can feel quite muggy. Expect around 165 mm (6.5 in) of precipitation over 10 rainy days, creating a lush environment that enhances the region's natural beauty. Whether you're savoring the blooming flora or experiencing the occasional shower, May in Uwajima epitomizes the charm of Japanese spring.

May Temperature in Uwajima

In May, Uwajima, Japan experiences a delightful transition into warmer weather, with temperatures reflecting the vibrant blossoming of spring. The month begins with a comfortable minimum of 8°C (46°F) and reaches a pleasant average of 20°C (68°F), peaking at a warm 30°C (87°F). This upward trend in temperature is a stark contrast to the chill of winter months like January and February, highlighting a significant shift towards more temperate conditions. Compared to the previous months, May's climate invites outdoor activities and showcases the region's natural beauty as flora comes alive, making it an ideal time to explore Uwajima's charming landscapes.

May Weather in Uwajima: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Uwajima, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Uwajima, May 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).
JanFebMarAprMayJunJulAugSepOctNovDec454653606873808377685748
Data source: Temperature data for Uwajima 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.

May Precipitation in Uwajima

In Uwajima, Japan, May stands out as a particularly wet month, with an impressive 165 mm (6.5 in) of rainfall, marking a notable increase from the preceding months of April and March. This uptick in precipitation coincides with 10 rainy days, suggesting that the region is firmly transitioning into its rainy season. As spring unfolds, the accumulation of moisture sets the stage for the even heavier rains typical of June and July. This pattern showcases a clear trend of increasing precipitation as temperatures rise, highlighting the dynamic climate that characterizes the region during this time of year.

May Precipitation Trends in Uwajima

The chart displays monthly precipitation patterns in Uwajima, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Uwajima, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec53861291261652153531921921945862
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Uwajima

In May, Uwajima, Japan, experiences a notable rise in humidity, reaching 84%—the warm spring air beginning to embrace the dampness of the oncoming summer. This increase is part of a clear trend, as humidity levels steadily climb from 78% in April to a peak of 92% in July. The gradual ascent leading up to May reflects the region's characteristic moist climate, setting the stage for the high humidity that defines the summer months. As the year unfolds, this pattern continues, with Uwajima’s humidity remaining consistently elevated, peaking in the heart of summer, and then slowly declining into the cooler autumn months.

May Average Humidity in Uwajima

This chart illustrates the average monthly humidity levels in Uwajima, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Uwajima is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%71%71%78%84%86%92%91%84%83%81%79%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Uwajima

In May, Uwajima, Japan, experiences a dramatic surge in UV exposure, reaching an extreme UV Index of 12. With a burn time of just 10 minutes, this month marks the highest level of solar intensity in the spring, following a notable rise from moderate in January to very high by April. The trend continues into June and July, maintaining the extreme categorization, highlighting a significant shift in sun safety precautions needed. Residents and visitors should be especially vigilant during this time, as the risk of harm from UV rays increases sharply. For more detailed insights, check the Uwajima UV Index.

Maximum UV Index Levels in Uwajima for May

The chart shows the monthly maximum UV Index (UVI) for Uwajima in May, 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 May, the maximum UV index in Uwajima typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469101211121211764
Data source: Uwajima May 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.

May Sunshine in Uwajima

In Uwajima, Japan, May heralds the peak of sunshine, basking in an impressive 296 hours of sunlight that month. This delightful increase from 284 hours in April signals a vibrant transition into late spring, where the warmth of the sun invigorates both nature and spirit. Following a steady ascent from January's modest 184 hours, sunlight hours in Uwajima consistently climb, revealing a trend of longer, brighter days leading into the summer months. As May unfolds, residents and visitors alike relish the beauty of blooming landscapes under the sun's golden embrace, setting the stage for the sunniest months ahead.

Monthly Sunshine Duration in Uwajima: May Highlighted

The May sunshine duration represents the total number of hours Uwajima experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec184h231h271h284h296h273h281h308h265h259h239h215h
Data source: Uwajima May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Uwajima During May

In Uwajima, Japan, the likelihood of sunny weather takes a notable dip in May, with only a 29% chance of sunshine. This marks a departure from the relatively stable percentages in the earlier months, where January through April averages around 46% to 50%. As summer approaches, the sun seems to shy away even more, with June and July experiencing significantly lower chances of clear skies at 23% and 24%, respectively. This trend suggests that May, while moving towards summer, may still hold onto lingering cloudiness, a precursor to the wetter months ahead. Therefore, if you're planning a visit to Uwajima in May, be prepared for a mix of weather, as sunny days may be less plentiful.

Percentage of Sunny Days in May in Uwajima

The chart illustrates the percentage of sunny days in Uwajima throughout the year, with May 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 Uwajima experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec46%50%43%47%29%23%24%29%35%63%55%53%
Data source: Uwajima May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Uwajima in May

As spring unfolds in Uwajima, Japan, daylight duration begins to increase appreciably. In March, the days stretch to 11 hours, heralding the arrival of longer, sunnier periods. By April, daylight reaches 13 hours, a threshold that remains steady into May. This month marks a delightful consistency as residents enjoy the same length of daylight. June sees a further increase, with 14 hours of daylight, paving the way for the brightest months of the year. As summer progresses into July and August, daylight remains robust at 14 hours before gently tapering off in the fall, a signal of nature's cyclical rhythm. This predictable pattern enhances Uwajima’s charm, inviting both locals and visitors to embrace the vibrant energy of the longer days.

Average Daylight Hours in Uwajima for May

The chart illustrates the variation in daylight duration in Uwajima throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 12m10h 58m11h 58m13h13h 52m14h 17m14h 4m13h 19m12h 20m11h 19m10h 26m9h 58m
Data source: Uwajima daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Uwajima

In Uwajima, Japan, May brings a gentle breeze with an average wind speed of 3.2 m/s (7 mph), marking a subtle decline from the spring months. As winter's brisk winds fade, May’s conditions are generally calmer, reflecting a downward trend that begins in April and continues into the early summer months. This shift sets the stage for a mild, tranquil atmosphere, encouraging outdoor activities as the landscape blossoms into vibrant hues. While June sees a further drop in wind speeds to 2.8 m/s (6 mph), the overall transition from April to May signifies a gentle easing into the warmer season, inviting both residents and visitors to embrace the beauty of Uwajima's springtime charm.

Average May Wind Speed in Uwajima

The chart displays monthly wind speed patterns in Uwajima, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.94.03.63.43.2 m/s2.82.53.42.62.73.44.1
Data source: Uwajima May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Uwajima Compares to Other Months

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

May and January present striking contrasts in weather conditions. May typically enjoys warmer temperatures, with a minimum of 8°C (46°F) and an average high reaching 30°C (87°F), compared to January's chilly lows of -2°C (28°F) and an average high of just 17°C (64°F). Additionally, May sees significantly more precipitation, totaling 165 mm (6.5 in) across about 10 days, while January is much drier, with only 53 mm (2.1 in) over 8 days. Humidity is also higher in May at 84%, in contrast to January's 75%. For more details, check out Uwajima weather in January.

When comparing the weather in May and February, it's evident that May offers much warmer temperatures, with a minimum of 8°C (46°F) and an average of 20°C (68°F), peaking at a high of 30°C (87°F). In contrast, February experiences much cooler conditions, featuring a minimum of -2°C (28°F) and an average of only 8°C (46°F), with a maximum of 20°C (69°F). Precipitation is higher in May, totaling 165 mm (6.5 in) over 10 days, compared to February’s 86 mm (3.4 in), which also occurs over 10 days. Additionally, May boasts higher humidity at 84% compared to February’s 71%. For more detailed insights into February weather, check out Uwajima weather in February.

May and March present distinctly different weather patterns. In May, temperatures range from a minimum of 8°C (46°F) to a maximum of 30°C (87°F), with an average of 20°C (68°F), offering a warm and pleasant atmosphere. However, the month also experiences significant precipitation, totaling 165 mm (6.5 in) over about 10 days, contributing to a high humidity level of 84%. In contrast, March typically sees cooler temperatures, with a minimum of 1°C (35°F) and a maximum of 23°C (74°F), averaging around 12°C (54°F). Although slightly less rainy than May, March still receives 129 mm (5.1 in) of rainfall across 11 days, with lower humidity at 71%. For more detailed information, you can visit Uwajima weather in March.

In comparing the weather of April and May, it's clear that May tends to be warmer and more humid. During May, temperatures can range from a minimum of 8°C (46°F) to a maximum of 30°C (87°F), with an average temperature of 20°C (68°F). In contrast, April's temperature ranges from a minimum of 3°C (38°F) to a maximum of 26°C (78°F), averaging 16°C (61°F). Additionally, May experiences more rainfall, with 165 mm (6.5 in) of precipitation over 10 days, compared to April's 126 mm (5.0 in) over 8 days. Humidity levels also rise slightly in May, reaching 84% compared to April's 78%. For more details, visit Uwajima weather in April.

May and June exhibit a transition in weather patterns, with June generally being warmer and wetter than May. In May, temperatures range from a minimum of 8°C to a maximum of 30°C, with an average of 20°C, while June features a minimum of 14°C and an average of 23°C, peaking at 30°C. Precipitation in June increases significantly to 215 mm over 14 days, compared to May's 165 mm across 10 days. Humidity levels remain relatively high, with June slightly higher at 86% compared to May's 84%. For more details, you can check Uwajima weather in June.

In May, the weather typically features milder temperatures, with a minimum of 8°C (46°F) and an average of 20°C (68°F), reaching a maximum of 30°C (87°F). This month sees about 165 mm (6.5 in) of precipitation over approximately 10 days, accompanied by a humidity level of 84%. In contrast, July brings a significant increase in warmth, with a minimum temperature of 19°C (66°F), an average of 27°C (80°F), and highs soaring up to 35°C (96°F). However, this summer month also experiences higher precipitation at 353 mm (13.9 in) over 16 days and an increased humidity of 92%. For more detailed information, check out Uwajima weather in July.

May and August present distinctly different weather patterns. In May, temperatures range from a cool minimum of 8°C (46°F) to a warm average of 20°C (68°F), peaking at 30°C (87°F). The month experiences significant rainfall, with 165 mm (6.5 in) over about 10 days, coupled with high humidity at 84%. In contrast, August brings much warmer conditions, with minimum temperatures starting at 20°C (69°F) and average highs reaching 28°C (83°F), peaking at a hot 36°C (97°F). Rainfall increases slightly to 192 mm (7.5 in) over around 14 days, while humidity rises to 91%. For a more detailed look at August weather in the region, visit Uwajima weather in August.

In May, the weather features a temperature range with a minimum of 8°C (46°F), averaging 20°C (68°F) and peaking at a maximum of 30°C (87°F). This month experiences significant rainfall, totalling 165 mm (6.5 in) over about 10 days, accompanied by high humidity levels averaging 84%. In contrast, September brings warmer conditions with a minimum temperature of 16°C (61°F), averaging 25°C (77°F) and reaching up to 33°C (92°F). Rainfall increases slightly to 192 mm (7.6 in) distributed over 15 days, while humidity remains steady at 84%. For a deeper insight into September weather patterns, you can check this link: Uwajima weather in September.

May and October both offer mild temperatures, with average highs around 20°C (68°F) and maxima close to 30°C (87°F in May and 86°F in October). However, May experiences a slightly lower minimum temperature of 8°C (46°F) compared to October's 9°C (48°F). Precipitation is notably higher in October, averaging 194 mm (7.7 in) over 10 days, compared to May's 165 mm (6.5 in) during the same number of days. Humidity remains relatively stable, with May at 84% and October at 83%, making both months feel fairly humid. For more detailed weather information, check Uwajima weather in October.

May and November present distinct weather patterns, highlighting the transition between spring and autumn. In May, the temperatures range from a refreshing 8°C (46°F) at night to a warm average of 20°C (68°F) and can peak at a notable 30°C (87°F) during the day. Precipitation is relatively high, with 165 mm (6.5 in) over about 10 days, accompanied by a humidity level of 84%, creating a lush, vibrant atmosphere.

In contrast, November experiences cooler temperatures, ranging from a chilly 2°C (37°F) at night to a more moderate average of 14°C (58°F), with a maximum of 25°C (78°F). The month sees significantly less rainfall at 58 mm (2.3 in) over 7 days, and the humidity drops slightly to 81%. This makes November a drier and crisper month compared to the lushness of May. For more specific weather details during this time, you can refer to Uwajima weather in November.

May and December present contrasting weather conditions. In May, temperatures range from a minimum of 8°C (46°F) to a maximum of 30°C (87°F), with an average of 20°C (68°F). Humidity is relatively high at 84%, and the month experiences significant rainfall, totaling 165 mm (6.5 in) over approximately 10 days. In contrast, December is much cooler, with temperatures varying from a minimum of 0°C (32°F) to a maximum of 23°C (73°F) and an average of 9°C (49°F). Precipitation in December is lower, averaging 62 mm (2.5 in) over about 7 days, and humidity is slightly less at 79%. For a more detailed look at December weather in Uwajima, check out Uwajima weather in December.

Compare Uwajima's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Uwajima

As May arrives in Uwajima, the weather transforms, offering a delightful mix of warmth and humidity. With temperatures soaring to a maximum of 30°C (87°F), it marks a significant shift from the cooler spring months, providing a more vibrant atmosphere. The average temperature settles at a comfortable 20°C (68°F), perfect for outdoor activities. However, the month also brings increased precipitation, with about 165 mm (6.5 in) expected over approximately 10 days, contributing to the lush greenery that characterizes this season. The high humidity, averaging 84%, adds to the tropical feel, making May a truly unique time to experience Uwajima. For more details on weather patterns throughout the year, check out Uwajima Climate.