Climate and monthly weather forecast
Shizuoka, Japan


The climate of Shizuoka

Situated near the Pacific coast in Chūbu region of Japan, Shizuoka lies in the realm of a humid subtropical climate, according to the Köppen climate classification. This type of climate, denoted as Cfa, typically has no dry season. Digging deeper into the weather patterns, a study of Shizuoka's climatalogical data reveals a pattern of steady temperatures fluctuating between 15.4°C (59.7°F) and 26.6°C (79.9°F). Shizuoka’s temperate conditions allow the sea temperature, providing a band of thermometer reading, ranging from 15.5°C (59.9°F) to as warm as 26.6°C (79.9°F) in peak summer. Daylight varies considerably from 9.8 hours to 14.5 hours, providing adequate sunshine to the citizens.

Seasonal shifts in Shizuoka bring distinct alterations in weather parameters. However, its signature humid subtropical climate remains consistent, minimizing any extreme weather conditions. No single month stands out for widespread drought or prolific rainfall, demonstrating an even distribution of water volume throughout the year. Unparalleled weather conditions remain a rarity, suggesting a generally moderate and predictable climate.

The best time to visit Shizuoka

Those planning a visit to Shizuoka will find the warmth from July to September most inviting. This interval registers the highest sea temperatures, hovering between 25.5°C (77.9°F) and 26.6°C (79.9°F), invigorating for beach trips and coastal activities. With ample daylight of 14.3 hours to 13.5 hours, daytime explorations can extend well into the evening.

The worst time to visit Shizuoka

In stark contrast to the warmth of the summer months, December through February can prove somewhat less hospitable for visitors. This period registers the lowest sea temperatures, dropping down to chilling figures of 15.4°C (59.7°F) to 17.3°C (63.1°F). Paired with the shortest daylight duration, from 9.8 hours to 10.9 hours, these months might not offer the most leisure-friendly weather conditions for outdoor plans.

Spring weather in Shizuoka

Spring months of March to May bring a pleasant transformation in Shizuoka's weather. Sea temperatures begin their ascent from March's 17.3°C (63.1°F) to reach 21.8°C (71.2°F) by May, providing favorable conditions for aquatic activities. Daylight hours extend noticeably too, expanding from 12 hours to the season's longest at 14 hours.

Summer weather in Shizuoka

As summer unfolds from June to August, temperatures soar, and Shizuoka revels in the balmy weather. Peak sea temperatures from 25.5°C (77.9°F) to 26.6°C (79.9°F) make it an appealing destination, matching the long daylight hours spanning from 14.5 hours to 13.5 hours.

Autumn weather in Shizuoka

Autumn cools things down in Shizuoka between September and November, yielding a gradual decline in sea temperatures from 25.8°C (78.4°F) down to 20.9°C (69.6°F) in November. Daylight hours also curtail, receding from 12.4 hours to 10.4 hours, signaling shorter days and longer evenings.

Winter weather in Shizuoka

Winter is a season of stark contrast in Shizuoka, with diminishing warmth passing through December and February. Sea temperatures plunge to a yearly low, between 17.9°C (64.2°F) and 15.4°C (59.7°F). The daylight too cuts short, hitting a yearly low at 9.8 hours by December before slightly improving to 10.9 hours in February.

Weather in January

Shizuoka's climate begins its new year with cool sea temperatures and reduced daylight hours. Notable this month is the average sea temperature, relatively cool at 16.3°C (61.3°F). Travelers and residents alike usually prepare for a more indoor-bound lifestyle during this period. Weather in January »

Weather in February

February in Shizuoka witnesses a perceptible chill as the air carries the cold from the sea. The sea temperature, specifically, dips to a cooler 15.4°C (59.7°F). Contrastingly, daylight hours show an increase, signaling the approach of spring. Weather in February »

Weather in March

March holds promise for more sunlight as Shizuoka progresses throughout the spring season. Also of interest, the sea temperature evens out slightly to a more comfortable 15.5°C (59.9°F). Outdoor-friendly weather gradually emerges, with blooming Sakura indicating the spring in its full glory. Weather in March »

Weather in April

April greets Shizuoka's residents with blossoming flowers and a wave of warmth from the sea. Directly relating to this is the average sea temperature which climbs to 17.3°C (63.1°F) in this month. While representing a clear contrast to March's gentle coolness, this warmth readies citizens for the upcoming summer months. Weather in April »

Weather in May

May extends the warm trend of Shizuoka's climatic year, revealing a bright ambiance across the city. This warmth emanates from the significantly warming sea, with an average temperature of 19.3°C (66.7°F). This delightful weather is a clear departure from April's milder conditions, paving the way for summer's full arrival in June. Weather in May »

Weather in June

June sets a lively, sunny demeanor in Shizuoka, marking the zenith of daylight hours for the year. Attributable to this is the sea, now edging towards its hottest at 21.8°C (71.2°F). June's genial weather imparts a stark difference from May, as beaches start buzzing with greater activity. Weather in June »

Weather in July

July in Shizuoka is characterized by balmy weather and bustling beach activities. A remarkable feature of this period is the sea temperature, reaching its topmost average at 25.5°C (77.9°F). The highest sea temperature and the weather patterns it brings about contrasting distinctly to June's conditions. Weather in July »

Weather in August

August in Shizuoka is known for its sultry days, and though the weather starts to subtly shift, it retains its summer spirit. The sea temperature, making headlines yet again, reaches an impressive average of 26.6°C (79.9°F). While portraying similar trends as July, the changing daylight patterns subtly signal the impending decline in sea temperatures. Weather in August »

Weather in September

September in Shizuoka elucidates the beginning of autumn's palette, albeit with mild summer remnants. Reflecting this seasonal shift, the average sea temperature cools to a soothing 25.8°C (78.4°F). While bearing resemblances to August's warmth, the month readies for the altogether cooler October. Weather in September »

Weather in October

October invites a more composed ambience around Shizuoka, with the weather steadily turning towards the colder months. The cooling trend is attributable to the sea temperature dropping to 23.7°C (74.7°F). October ushers in a significantly cooler weather compared to September, and also paves the way for a visually enticing November. Weather in October »

Weather in November

November presents itself with beautifully changing foliage and a noticeable descent in temperatures. Graphically represented, the sea temperature extends its downward trend, settling at an average of 20.9°C (69.6°F). In comparison to October, the dip in temperature and shorter daylight hours create a distinct winter onset. Weather in November »

Weather in December

December concludes Shizuoka's weather cycle with a winter chill and cozy atmosphere. The sea temperature follows suit, declining to a more chilled 17.9°C (64.2°F). Against November's mild cold, the weather in December seems exceptionally crisp and wintry. Weather in December »

Frequently asked questions

What month is the sea coldest in Shizuoka?

The month with the coldest seawater in Shizuoka, Japan, is February, with an average sea temperature of 15.4°C (59.7°F).

When are the longest days in Shizuoka?

With an average of 14h and 30min of daylight, June has the longest days of the year in Shizuoka, Japan.

When is the sea warmest in Shizuoka?

The month with the warmest seawater is August, with an average sea temperature of 26.6°C (79.9°F).

What is the month with the shortest days in Shizuoka?

With an average of 9h and 54min of daylight, December has the shortest days of the year in Shizuoka.

Is there Daylight Saving Time (DST) in Shizuoka?

Shizuoka does not observe Daylight Saving Time (DST). JST timezone is used throughout the entire year.

Average sea temperature
Shizuoka, Japan

Average sea temperature - Shizuoka, Japan

The best month for swimming (with the highest average sea temperature) is August (26.6°C).
The coldest month (with the lowest average sea temperature) is February (15.4°C).


Average daylight
Shizuoka, Japan

Average daylight - Shizuoka, Japan

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).


Shizuoka, Japan

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location