Climate and monthly weather forecast
Wakayama, Japan

Set in the geological heart of Japan, Wakayama endures a Humid subtropical climate, recognized categorically as 'Cfa' in the Köppen climate classification system. This interpretation signifies that the prevailed climate delineates no defined dry season, coupled with a warm temperate regimen.

Unveiling the climatic code through quotidian measurements reveal that the city experiences a year-round influence of moderate to high humidity, with a notable oscillation between monthly temperatures. The sea temperatures, a crucial determinant in the coastal city’s climate, fluctuate from a low of 15.6°C (60.1°F) during the winter months, steadily rising to peak at 27.7°C (81.9°F) in summer. Likely, daylight hours have a regular variance between 9.9 hours in the winter to a more radiant expanse of 14.4 hours in summer.

A fascinating trait in Wakayama's climate is the warm summer months, with sea temperature escalating to a comfortably balmy 27.7°C (81.9°F). Conversely, during the dead of winter, the city is subjected to average low temperatures, with the least sea temperature recorded at 15.6°C (60.1°F).

The best periods to visit Wakayama ensue when the climate is most favorable and congenial, hence suggesting the transition seasons of spring and autumn as opportune times. From April to June, the spring offers an average sea temperature of 19.8°C (67.6°F) to 26.4°C (79.5°F),overtaken by an average daylight of 13 hours to 14.2 hours - presenting tourists with the advantage of extended exploration periods. Equally attracting is the autumn season, particularly from September to November, as the sea remains pleasantly warm descending from 26.7°C (80.1°F) to 21.9°C (71.4°F) with ample daylight, making these periods intriguing for visitors.

Regrettably, the winter months from December till February register as the worst time to visit Wakayama. The averaging sea temperature between these months dwells from 19.1°C (66.4°F) to 15.6°C (60.1°F), making it less appealing to those looking to enjoy outdoors or indulge in sea-based activities. Moreover, daylight hours deplete to as low as 9.9 hours in December, limiting the daylight time for outdoor adventures.

Spring is truly a delightful season in Wakayama, engendering an average sea temperature ranging from 17.1°C (62.8°F) to 26.4°C (79.5°F) between March and May. What enhances the allure of the city further is the gradual increase in daylight hours, advancing from 12 hours in March to 14.2 hours in May. This season allows tourists to enjoy Wakayama to its fullest, as the blossoming city enjoys long, warm, and pleasingly lit days.

Summer in Wakayama is brilliant yet temperate, with sea temperatures peaking at 27.7°C (81.9°F) in August and maintaining an average of 26.7°C (80.1°F). Interestingly, the city doesn’t witness scorching summer days, but instead caters to warm seas and longer daylight hours, reaching a zenith of 14.4 hours in June surveying a slight dip throughout the season. The weather during this period is excellent for water lovers and outdoor adventurers.

The autumn season is another delightful time to visit Wakayama. As the weather turns brisk yet pleasant, the sea temperature drops steadily from 26.7°C (80.1°F) in September to 21.9°C (71.4°F) in November. The daylight hours also start to recede, from 12.4 hours in September down to 10.4 hours in November.

Wakayama witnesses a mild winter season, with the sea fluctuating from 21.9°C (71.4°F) in December to a frigid 15.6°C (60.1°F) in February. The daylight hours during winter are the shortest among all seasons, receding from 10.4 hours to as few as 9.9 hours in December. The winter months serve as a contrast to Wakayama's otherwise moderate to warm climate chart, offering a distinctly different experience.

January in Wakayama, Japan, introduces the new year with cooler ocean breezes, the sea temperature being 16.3°C (61.3°F); a moderate decrease compared to the previous month. The days tend to be shorter, often characterized by a chill in the air, signifying the ongoing winter season's wrath. Weather in January »

February brings a slight glimpse of early spring in Wakayama, Japan. With daily temperatures slowly climbing, the sea warms up to 15.6°C (60.1°F), a marginal decrease compared to January. Longer daylight hours compared to January promise beautiful sunsets. Weather in February »

Stepping into March, the weather in Wakayama, Japan, hints at the arrival of spring. Sea temperatures rise slightly to 15.8°C (60.4°F), further increasing from February's mark, offering a more comfortable maritime experience. The day stretches longer than February, offering ample opportunities to soak in the sunlight. Weather in March »

April in Wakayama, Japan, showcases spring in full swing. From 15.8°C (60.4°F) in March, the sea temperature jumps to 17.1°C (62.8°F), suggesting the increasing warmth and the declining effects of the previous winter. The city welcomes April with bright cherry blossoms while daylight durations increase compared to March, fetching more time for outdoor explorations. Weather in April »

May marks the bridge between spring and summer in Wakayama, Japan. A steady climb in the sea temperature reaching 19.8°C (67.6°F) indicates the onset of warmer days, a significant increase from April’s sea temperature. Notably longer daylight hours than April allows more time for beach activities. Weather in May »

June brings the onset of summer to Wakayama, Japan. With sea temperatures soaring to a warm 23.5°C (74.3°F), an evident rise compared to May, the blue waters of Wakayama are ideal for marine enthusiasts. Although the days are significantly hotter than May, they're balanced by pleasant summer evenings. Weather in June »

July signifies the peak of summer in Wakayama, Japan. Sea temperatures peak this month, reaching 26.4°C (79.5°F), displaying a noticeable increase from the June measurement. The city experiences the highest daylight hours compared to the past months, showcasing vibrant sunrises and breathtaking sunsets. Weather in July »

August in Wakayama, Japan, experiences the tail end of summer. The sea retains immense warmth at 27.7°C (81.9°F), surpassing the July temperature, offering optimal conditions for water activities. Although daylight hours reduce slightly from July, the summer spirit is still alive. Weather in August »

September welcomes autumn to Wakayama, Japan. With sea temperatures dropping to 26.7°C (80.1°F) from August's peak, it marks the beginning of a cooling trend. Despite a decrease in daylight hours, the city exhibits an alluring charm with multi-hued foliage and tranquil weather. Weather in September »

October amplifies the autumn season in Wakayama, Japan. The cooling trend continues with a sea temperature roll-back to 24.3°C (75.7°F), coming down comparative to September’s temperature. The fall foliage is at its peak, providing spectacular sights in and around the city. Weather in October »

November in Wakayama, Japan, exhibits the charm of late autumn. With a sea temperature of 21.9°C (71.4°F), it shows a significant dip from October, signaling the upcoming winter season. As daylight hours continue to shorten, the weather conditions change drastically from the prior month. Weather in November »

December welcomes winter in Wakayama, Japan. The sea temperature further descends to a cooler 19.1°C (66.4°F), indicating a decrease from November's figures. Despite shorter daylight hours, the city is throbbing with festive spirit against a backdrop of chilly weather. Weather in December »