May Weather in Yokohama, Japan

Last updated: August 21, 2025

May in Yokohama, Japan delights with a pleasant average temperature of 19°C (67°F), ranging from a comfortable 11°C (52°F) to a warm maximum of 27°C (80°F). During this month, the city experiences a notable 81% humidity, contributing to the lush atmosphere. While adventure seekers may need to prepare for 11 days of precipitation, amounting to 118 mm (4.6 in), these refreshing showers enhance the vibrancy of the blooming landscapes. May offers a perfect blend of mild warmth and enchanting scenery, making it an ideal time to explore the beauty of Yokohama.

May Temperature in Yokohama

In Yokohama during May, the weather truly shines as the city transitions into warmer months. With a minimum temperature of 11°C (52°F) and peaking at a comfortable 27°C (80°F), this month heralds the end of the cooler spring and the arrival of summer warmth. The average temperature of 19°C (67°F) creates an inviting atmosphere, perfect for outdoor activities and exploring the vibrant parks filled with blooming flowers. As the temperatures gradually rise from April’s coolness, May stands out as a delightful time to experience the city, showcasing a marked increase in warmth that sets the stage for the hotter months ahead.

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

The chart illustrates May temperature patterns in Yokohama, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yokohama, 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).
JanFebMarAprMayJunJulAugSepOctNovDec434551586772788275665848
Data source: Temperature data for Yokohama 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 Yokohama

May in Yokohama marks a notable transition within the city's annual precipitation pattern, receiving 118 mm (4.6 inches) of rain over 11 days. This amount reflects a slight uptick from April's 116 mm, indicating that the city continues to experience a wetter period as spring gives way to summer. The rainfall in May is part of a broader trend, as precipitation begins to escalate through the months, leading into June's significant peak of 161 mm. With the days steadily increasing in both length and humidity, May serves as a bridge, preparing residents and visitors alike for the more intense rainfalls of the upcoming summer month, while still allowing for ample bright days interspersed with refreshing showers.

May Precipitation Trends in Yokohama

The chart displays monthly precipitation patterns in Yokohama, 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 Yokohama, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec53431381161181612091041872668764
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Yokohama

May in Yokohama, Japan, marks a noticeable shift in humidity as it soars to 81%, setting the stage for the warmer months ahead. Following April's modest 74%, the rise in humidity hints at the approaching summer, where the air becomes increasingly moist. This trend continues into June, with humidity levels climbing to 88%, and peaks in July at a steamy 93%. Overall, May serves as a transition point, showcasing the gradual embrace of humidity that characterizes Yokohama’s sultry summer climate. Such levels not only affect the weather but also influence the vibrant natural scenery, making it an exciting time for residents and visitors alike.

May Average Humidity in Yokohama

This chart illustrates the average monthly humidity levels in Yokohama, 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 Yokohama is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%74%70%74%82%88%93%90%86%83%80%78%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Yokohama

As May rolls into Yokohama, Japan, the UV Index shoots up to an extreme level of 11, marking one of the highest points of the year. With such intense sunlight, the recommended burn time plummets to just 10 minutes, underscoring the necessity for effective sun protection. This trend is consistent with the preceding month of April, where the UV Index peaked at 9, but May's dramatic jump signals the start of a serious sun safety season. Following this, June through August will maintain this extreme UV level, emphasizing the importance of vigilance in avoiding sunburn and skin damage. As spring transitions into summer, residents and visitors alike should be well-prepared. For more detailed insights, check the Yokohama UV Index.

Maximum UV Index Levels in Yokohama for May

The chart shows the monthly maximum UV Index (UVI) for Yokohama 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 Yokohama typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35891111111110754
Data source: Yokohama 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 Yokohama

As spring gracefully transitions into summer, Yokohama experiences a delightful surge in sunshine during May, basking in an impressive 285 hours of sunlight. This marks a notable peak for the month, contributing to a vibrant, sunlit atmosphere that sets the stage for outdoor activities and leisurely strolls along the waterfront. Following April's 273 hours of sunshine, May enjoys a radiant ascent, reflecting the city’s blossoming energy. Although June sees a slight dip to 262 hours, the overall trend from January to May reveals a clear increase in sunshine hours, inviting residents and visitors alike to embrace the warm embrace of the sun before the summer heat intensifies. The gradual climb in daylight hours not only enhances the beauty of Yokohama’s landscape but also uplifts spirits as the city fully awakens to summer’s approach.

Monthly Sunshine Duration in Yokohama: May Highlighted

The May sunshine duration represents the total number of hours Yokohama 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.
JanFebMarAprMayJunJulAugSepOctNovDec191h233h260h273h285h262h234h288h235h202h231h231h
Data source: Yokohama May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Yokohama During May

In Yokohama, Japan, the month of May sees a notable dip in the likelihood of sunny weather, with only a 24% chance of sunshine. This trend starkly contrasts with the brighter probabilities of earlier months, such as February, which boasts a robust 66% chance, and April, where the sun shines a bit more at 50%. As the year progresses, the likelihood of sunshine fluctuates, but May's figures align more with the rainy season that approaches in June, both sitting at that same 24% benchmark. With such a low percentage, those planning outdoor activities in May may want to keep their umbrellas handy, as the weather pattern suggests a shift towards cloudier skies as spring transitions into summer.

Percentage of Sunny Days in May in Yokohama

The chart illustrates the percentage of sunny days in Yokohama 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 Yokohama experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec53%66%42%50%24%24%34%37%28%50%59%64%
Data source: Yokohama May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Yokohama in May

As spring blossoms into summer, Yokohama, Japan experiences a notable increase in daylight duration. Starting from 10 hours in January and February, the days gradually extend, reaching 11 hours in March and 13 hours by April, heralding the arrival of longer, sunnier days. By May, daylight peaks at 14 hours, creating the perfect backdrop for outdoor adventures and celebration of the season. This extended brightness continues through June and July, before subtly tapering off to 13 hours in August. As autumn approaches, daylight gradually lessens, with 12 hours in September and descending to 10 hours by November, ultimately wrapping up the year with shorter winter days. This cycle of light not only dramatically shapes daily life in Yokohama but also influences the rhythm of seasonal activities.

Average Daylight Hours in Yokohama for May

The chart illustrates the variation in daylight duration in Yokohama throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 2m10h 53m11h 58m13h 5m14h 1m14h 29m14h 15m13h 26m12h 22m11h 15m10h 17m9h 47m
Data source: Yokohama daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Yokohama

May in Yokohama brings a delightful increase in wind speeds, averaging 5.3 m/s (12 mph), the highest of the year. This uptick marks a refreshing transition as spring blossoms into early summer, providing a gentle breeze that invigorates the city's vibrant atmosphere. In contrast to the calmer winds of winter months, which hover around 4.3 m/s (10 mph) in January, May's winds evoke a sense of outdoor adventure and exploration. Following the consistent winds of late winter and early spring, this peak fosters ideal conditions for leisurely strolls along the waterfront and lively festivals celebrating the season. As the year progresses, the winds begin to taper off, with June’s average dropping to 3.7 m/s (8 mph), highlighting nature's dynamic ebb and flow in this picturesque coastal city.

Average May Wind Speed in Yokohama

The chart displays monthly wind speed patterns in Yokohama, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.34.94.94.85.3 m/s3.73.24.84.44.64.14.5
Data source: Yokohama May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Yokohama Compares to Other Months

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

May and January present stark contrasts in weather. In May, temperatures range from a minimum of 11°C (52°F) to a pleasant maximum of 27°C (80°F), averaging around 19°C (67°F). This month sees more precipitation, with 118 mm (4.6 in) falling over approximately 11 days, contributing to a humidity level of 81%. In contrast, January experiences much colder conditions, with temperatures dipping as low as -3°C (27°F) and averaging only 6°C (44°F), peaking at 18°C (65°F). Rainfall is lower, at 52 mm (2.1 in) over about 4 days, and humidity is slightly lower at 76%. For a detailed look at January weather, you can visit Yokohama weather in January.

May and February exhibit distinctly different weather patterns. In May, temperatures range from a minimum of 11°C (52°F) to a maximum of 27°C (80°F), with an average of 19°C (67°F). The month is characterized by higher precipitation, totaling 118 mm (4.6 in) across about 11 days, coupled with a humidity level of 81%. In contrast, February feels much cooler, with temperatures ranging from a chilly 0°C (31°F) at night to a pleasant 18°C (66°F) during the day, averaging just 7°C (45°F). Precipitation in February is significantly lower, at 43 mm (1.7 in) over about 7 days, and humidity is also more moderate, at 74%. For more detailed information on February weather, you can check Yokohama weather in February.

When comparing the weather in May and March, it's clear that May offers warmer temperatures, with an average of 19°C (67°F), compared to March's cooler average of 11°C (52°F). In May, the minimum and maximum temperatures range from 11°C (52°F) to 27°C (80°F), while March's range is from 1°C (34°F) to 20°C (69°F). Although May experiences less precipitation overall at 118 mm (4.6 in) over 11 days, it remains relatively humid at 81%, while March has slightly higher precipitation at 138 mm (5.4 in) over 12 days, with humidity at 70%. For more detailed information about March weather, you can visit Yokohama weather in March.

May typically experiences warmer temperatures compared to April, with minimums rising from 4°C (40°F) in April to 11°C (52°F) in May. The average temperature increases from 15°C (58°F) in April to 19°C (67°F) in May, and the maximum highs reach up to 27°C (80°F) in May, compared to 23°C (74°F) in April. Both months show similar precipitation levels, with May receiving 118 mm (4.6 in) over 11 days and April having 116 mm (4.6 in) over 10 days, but May is slightly more humid at 81% compared to 74% in April. For more detailed information on April weather, see Yokohama weather in April.

May and June exhibit notable differences in weather patterns. May features milder temperatures with a minimum of 11°C (52°F) and an average of 19°C (67°F), while June warms up, seeing a minimum of 16°C (61°F) and an average of 22°C (72°F). In addition to the rising temperatures, June also experiences more precipitation, totaling 161 mm (6.3 in) over 13 days, compared to May's 118 mm (4.6 in) over 11 days. The humidity increases from 81% in May to 88% in June, making the latter month feel more humid and muggy. For a detailed look at June weather specifics, check out Yokohama weather in June.

In comparing the weather between May and July, significant differences become apparent. May experiences milder temperatures with a minimum of 11°C (52°F) and an average of 19°C (67°F), while July heats up considerably, boasting a minimum of 19°C (66°F) and an average of 26°C (78°F). The maximum temperatures rise to 27°C (80°F) in May but can reach as high as 35°C (95°F) in July, highlighting the mid-summer heat. Additionally, July sees increased precipitation, totaling 209 mm (8.2 in) over 16 days compared to May's 118 mm (4.6 in) over 11 days. Humidity levels also rise from 81% in May to a steamy 93% in July, emphasizing the more oppressive summer conditions. For more details, you can check Yokohama weather in July.

May and August weather patterns show significant differences in temperature and humidity. In May, temperatures range from a minimum of 11°C (52°F) to a maximum of 27°C (80°F), with an average of 19°C (67°F). This month experiences 118 mm (4.6 in) of precipitation over 11 days, accompanied by an 81% humidity level. In contrast, August is considerably warmer, with temperatures ranging from a minimum of 20°C (68°F) to a maximum of 34°C (93°F), averaging 28°C (82°F). Despite slightly lower total precipitation at 104 mm (4.1 in) spread over 12 days, the humidity rises to 90%. For more detailed information on the August climate, visit Yokohama weather in August.

May and September present contrasting yet enjoyable weather patterns. In May, temperatures range from a mild 11°C (52°F) to a warm 27°C (80°F), with an average of 19°C (67°F). The month is characterized by relatively high humidity at 81% and about 118 mm (4.6 in) of precipitation over 11 days. In comparison, September boasts warmer temperatures, with a minimum of 16°C (60°F) and a maximum of 32°C (90°F), averaging around 24°C (76°F). However, it also sees increased rainfall, totaling 187 mm (7.4 in) across 16 days, along with a slight rise in humidity to 86%. For more detailed insights, check out Yokohama weather in September.

In comparison to May, October shares a similar average temperature of 19°C (67°F) with a slightly higher maximum of 28°C (83°F), making it a bit warmer at the upper end. However, October experiences significantly more rainfall, totaling 266 mm (10.5 in) over 16 days, compared to May's 118 mm (4.6 in) across 11 days. Humidity is also slightly higher in October at 83%, compared to May’s 81%. For more details on October weather, you can visit Yokohama weather in October.

May and November present quite distinct weather patterns. In May, temperatures range from a mild 11°C (52°F) to a warm 27°C (80°F), with an average of 19°C (67°F). The month sees a fair amount of rainfall, with 118 mm (4.6 in) over about 11 days, alongside high humidity levels at 81%. In contrast, November offers cooler temperatures, with a minimum of 4°C (40°F), an average of 14°C (58°F), and a maximum of 23°C (73°F). Precipitation decreases to 87 mm (3.4 in) across the same number of rainy days, maintaining a similar humidity level at 80%. For more detailed information, check out Yokohama weather in November.

In May, the weather is generally warmer and more humid, with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 27°C (80°F) and an average of 19°C (67°F). This month typically sees a higher level of precipitation, averaging 118 mm (4.6 in) over 11 days, contributing to an overall humidity of 81%.

Conversely, December brings cooler temperatures, with a minimum of 0°C (33°F), an average of 9°C (49°F), and a maximum of 21°C (70°F). The precipitation is lower in December, averaging 64 mm (2.5 in) over just 7 days, and the humidity sits slightly lower at 78%. For a more detailed look at the December climate, visit Yokohama weather in December.

Compare Yokohama's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Yokohama

As May unfolds in Yokohama, the weather transitions into a delightful spring warmth, culminating in an inviting blend of mild temperatures and lush greenery. With the maximum temperatures nudging closer to 27°C (80°F), it's a stark contrast to the chill of the preceding months. The city's average temperature hovers around a comfortable 19°C (67°F), making outdoor exploration all the more enticing. While there's a noticeable increase in humidity at 81% and some rain—about 11 days throughout the month—these conditions contribute to a vibrant atmosphere rather than detract from it. This period is perfect for enjoying the blooming flowers and lively parks, creating a refreshing prelude to the summer ahead. For more detailed information about the seasonal variations, visit Yokohama Climate.