The climate of Yokohama
Classified under the Köppen climate system as Cfa, prevalent weather conditions in
Yokohama,
Japan, are typically described as a humid subtropical climate, largely due to its lack of a definite dry season. Yokohama's geographical location along the Honshu island's eastern coast affects the city's climate pattern, contributing to the subtle variations seen across the individual weather parameters throughout the year.
In terms of temperature, Yokohama's annual highs and lows demonstrate a clear seasonality. The warmer months of
July and
August see the peak temperatures, averaging from 28.2°C (82.8°F) to a high of 29.8°C (85.6°F), while
January and
February are predominantly chilly, with average high temperatures barely above 10.1°C (50.2°F). Concurrently, low temperatures take a similar pathway, averaging 25.3°C (77.5°F) in August, sharply dropping to a cold 4°C (39.2°F) in January.
Relative humidity levels throughout the year remain fairly consistent, with relatively minor fluctuations. The values tend to stay between 60% and 80%, with the highest registered values reported during the months of July and August.
The pattern of rainfall in Yokohama displays certain monthly variations. The city witnesses the maximum rainfall, 126mm (4.96"), in the month of
October. Conversely, January reports the lowest amount of rainfall with 40mm (1.57") on average. Notably,
December and
November are comparatively drier with less than 65mm (2.56") of rainfall.
The best time to visit Yokohama
Weather patterns suggest that the most accommodating period to visit
Yokohama is arguably between
April and
June. During these months, the city experiences moderate temperatures, ranging from a comfortable 17.1°C (62.8°F) to 24.2°C (75.6°F). Correspondingly, this period witnesses less rainfall compared to the rest of the year to enhance outdoor activities. From beach lounging to city touring, the pleasant temperatures along with reduced rainfall make this period ideal for a wide range of sight-seeing options.
The worst time to visit Yokohama
From the climatological data, it appears that late autumn, specifically
October, may not be the most highly recommended time to visit
Yokohama. Not only is it the month with the highest recorded rainfall, averaging 126mm (4.96"), but it also has a high count of rainfall days, 15.9 days on average. The city also experiences warmer temperatures during late summer to early fall, from
July to
September, with maximum temperatures rising up to 29.8°C (85.6°F). High heat combined with rain could potentially hamper outdoor explorations and sight-seeing experiences.
Spring weather in Yokohama
Spring, spanning
March to
May, showcases mild and favorable weather conditions in
Yokohama. During this time, daily high temperatures exhibit a gradual warming trend, moving from 12.9°C (55.2°F) in March to warmer 21.9°C (71.4°F) in May. Similarly, night temperatures also rise over this period from 7.1°C (44.8°F) to 16.4°C (61.5°F). Concurrently, rainfall amounts increase slightly, commencing at 79mm (3.11") in March and reaping a peak of 79mm (3.11") again in
April, before tapering off to 65mm (2.56") in May.
Summer weather in Yokohama
Summer months,
June through
August, in
Yokohama are typically hot, with
July and August witnessing the hottest conditions. The city experiences average high temperatures of 28.2°C (82.8°F) in July, escalating to the annual highest of 29.8°C (85.6°F) in August. In conjunction, nightly low temperatures remain warm, averaging between 23.5°C (74.3°F) and 25.3°C (77.5°F). Despite the heat, humidity levels soar to the highest for the year, notably a high of 80% in July.
Autumn weather in Yokohama
Autumn months of
September through
November in
Yokohama are characterized by a progressive cooling of temperatures and an increase in rainfall. Average high temperatures drop from 26.5°C (79.7°F) in September to a cooler 16.7°C (62.1°F) by November. In terms of rainfall,
October is the rainiest month with an average of 126mm (4.96") and close to 16 rainy days.
Winter weather in Yokohama
Winter in
Yokohama, which lasts from
December to
February, is marked by colder temperatures and relatively low rainfall. Average high temperatures hover around 10.1°C (50.2°F) in February, with the lowest annual temperature of 4°C (39.2°F) recorded in
January. Rainfall levels in winter are the lowest for the year, with January witnessing an average of only 40mm (1.57").
Weather in January
January in
Yokohama ushers in the new year with relatively mild weather, characterized by moderate temperatures ranging from 4°C (39.2°F) at night to a daytime high of 9.3°C (48.7°F). The arrival of winter is accompanied by increased humidity and the potential for brief showers.
Weather in January » Weather in February
Shaking off the coolness of
January,
Yokohama sees a slight increase in temperatures during
February with lows of 4.4°C (39.9°F) and highs of 10.1°C (50.2°F). Overcast skies are more common this month, and the city experiences its first substantial snowfall of the year at 22mm (0.87").
Weather in February »Weather in March
March ushers in the end of
Yokohama's brief winter, with temperatures rising to an average high of 12.9°C (55.2°F). The transition into spring is marked by increased humidity and notably heavier rainfall compared to the previous months.
Weather in March »
Weather in April
April signifies a clear shift in
Yokohama weather patterns as the climate comfortably eases into spring. An evident increase of temperatures marks the transition, from lows of 11.4°C (52.5°F) to high temperatures reaching 17.1°C (62.8°F).
Weather in April » Weather in May
The month of
May in
Yokohama sees another increase in temperatures, this time reaching up to 21.9°C (71.4°F) while the lowest dips to 16.4°C (61.5°F). Bringing along with it an increase in the UV index warning residents and tourists to take protective measures while venturing out in the sun.
Weather in May »Weather in June
As summer begins to roll in,
June in
Yokohama experiences warmer conditions with average temperatures reaching as high as 24.2°C (75.6°F). The increase in rainfall signifies the arrival of the East Asian monsoon season, which is marked by frequent heavy showers.
Weather in June »
Weather in July
July is characteristically the warmest month in
Yokohama with average daily high temperatures peaking at 28.2°C (82.8°F). The monsoon showers from
June persist, leading to high humidity levels that could feel oppressive for those unaccustomed to such conditions.
Weather in July » Weather in August
Plunging into the depth of summer,
August continues the warm trend seen in
July, but temperatures reach their peak now with highs of 29.8°C (85.6°F). High humidity persists in
Yokohama, though the frequency of rainfalls sees a notable drop as compared to the previous months.
Weather in August »Weather in September
September brings a slight relief from the intense summer heat, with temperatures declining to highs of around 26.5°C (79.7°F). However, with rainfall amounting to 104mm (4.09"), it is the wettest month of the year in
Yokohama.
Weather in September »
Weather in October
October is when
Yokohama truly begins to see and feel the onset of autumn. The temperatures steadily decrease, providing relief from the residual heat of summer. Rainfall remains high, keeping the city's climate humid and leading to the beautiful change in foliage that autumn brings.
Weather in October » Weather in November
As autumn progresses in
Yokohama,
November witnesses a marked drop in temperatures with average high temperatures of 16.7°C (62.1°F). The humidity levels and rainfall continue on the downward trend, setting the stage for the approaching winter.
Weather in November »Weather in December
December in
Yokohama greets the arrival of winter with cooler temperatures and declining humidity levels. It marks a significant difference in temperatures between day and night, signaling the onset of chillier days ahead. Rainfall, while still present, diminishes significantly in comparison to the previous months.
Weather in December »