Spring in Yokohama really feels like a steady shift from cool, brisk days into much milder, comfortable weather. Average high temperatures usually climb from the low 50s °F in March to the mid-70s °F by late May, and lows rise from around 40°F to the mid-60s °F.
This season is honestly one of the best times to wander the city, since you don’t have to deal with the extremes of summer heat or winter’s chill.
As spring moves along, you’ll spot more cloud cover and see an uptick in rainfall, especially by late May. The odds of a rainy day go from about one in three at the start of spring to almost two in five by the end.
Still, the mix of sun and showers keeps things feeling fresh and really brings out the best in the city’s parks, gardens, and waterfront.
You’ll also notice daylight stretching longer every week. By the end of the season, you get nearly three extra hours of sunlight compared to early March.
That longer daylight fits perfectly with the blooming cherry blossoms and outdoor festivals that make spring in Yokohama so lively. There’s just more time to soak up the city’s seasonal charm.
Overview of Spring Weather in Yokohama
Spring in Yokohama means warmer temperatures, longer days, and more frequent rain. You’ll feel the shift from crisp, cool days in early March to mild and comfortable conditions by late May, with humidity and cloud cover both creeping up.
Typical Spring Climate Conditions
Daily high temperatures start off around 52°F (11°C) in early March and reach about 74°F (23°C) by late May. Lows go from roughly 40°F (4°C) to 64°F (18°C).
This steady warming makes spring a fantastic time for outdoor activities.
Rainfall gets more common as the season goes on. Average monthly rainfall jumps from about 3.6 inches (91 mm) in March to 5.5 inches (140 mm) in May.
Cloudy days pop up more often too, so you’ll see clear skies less frequently as spring wraps up.
Winds shift direction through the season. Early on, they mostly come from the north, but by late April and May, you’ll notice more southerly breezes.
Average wind speeds drop a bit, from nearly 10 mph (16 km/h) in March to about 8 mph (13 km/h) in May.
Daylight hours grow pretty quickly. Days stretch from about 11 hours 25 minutes in early March to more than 14 hours by late May.
That extra daylight gives you more time to enjoy the city’s parks, waterfront, and the festivals that pop up everywhere.
Köppen Climate Classification (Cfa)
Yokohama falls under the humid subtropical climate (Cfa) category in the Köppen system.
So, you get hot, humid summers, mild winters, and no real dry season. Rain falls all year, but spring definitely brings more wet days than winter.
Humidity feels comfortable in early spring, but by late May, it starts to climb. The chance of muggy weather rises from almost 0% in March to about 13% in May.
Dew points go up too, so the air feels stickier as summer approaches.
Water temperatures around Yokohama follow this warming trend. The sea surface warms from about 57°F (14°C) in March to 67°F (19°C) in May.
That warming sea keeps coastal nights milder than inland spots.
Since Yokohama sits near Tokyo Bay, the ocean helps moderate the climate. You’ll notice fewer temperature extremes compared to cities farther inland, which keeps spring weather pretty stable.
Comparison to Other Seasons
Spring feels warmer, brighter, and wetter than winter. Winter highs only reach the mid-40s °F (7°C), but spring quickly moves into the 60s and 70s °F (15–23°C).
Rainfall goes up, and you’ll see more clouds than during the drier winter.
Summer in Yokohama is a different story—hotter and much more humid. Highs often hit the mid-80s °F (29°C), and muggy days are the norm.
Spring, on the other hand, gives you milder temperatures and less oppressive humidity. It’s just easier to get outside and enjoy things.
Autumn shares some of spring’s mild temperatures, but the rain patterns are different.
Typhoons peak in September and October, bringing heavier rain and stronger winds. Spring stays wet, but you don’t usually get those big storms.
If you like moderate temperatures, lower humidity, and longer days, spring really is one of the most comfortable times to be in Yokohama.
Average Temperatures During Spring
Spring in Yokohama means a steady warm-up, with daytime highs moving from cool to comfortably warm. Nights shift from chilly to mild.
The sea warms up fast too, and that really shapes the coastal air, so the city never feels as extreme as inland areas.
Daytime Highs and Nighttime Lows
In early spring, daytime highs average around 52°F (11°C), and nighttime lows hover near 40°F (4°C).
As weeks go by, highs steadily climb to about 74°F (23°C) by late spring, and lows reach around 64°F (18°C).
At the start of the season, you’ll want a jacket during the day. By late May, short sleeves usually do the job.
Nights warm up quickly too, so evenings become much easier to handle as spring rolls on.
The gap between day and night temperatures shrinks toward the end of spring. Early on, evenings feel cool, but by late spring, the difference between highs and lows isn’t as big.
This makes the climate feel more stable and mild all day.
Monthly Temperature Trends
March kicks off on the cooler side, with average highs near 13°C (55°F) and lows around 6°C (43°F). Nights can still feel a bit like winter.
By April, highs hit about 18°C (64°F), and lows settle near 11°C (52°F). This is when spring feels most balanced, and spending time outside gets a lot more comfortable.
May warms up noticeably, averaging 23°C (73°F) during the day and about 18°C (64°F) at night. The air often hints at early summer.
| Month | Avg High | Avg Low |
|---|---|---|
| March | 55°F / 13°C | 43°F / 6°C |
| April | 64°F / 18°C | 52°F / 11°C |
| May | 73°F / 23°C | 64°F / 18°C |
You can really see the temperatures climbing month by month.
Sea Water Temperatures
Yokohama’s coastal location means the nearby sea has a big impact on local weather. In early spring, the average surface water temperature sits at about 57°F (14°C).
By late May, it rises to around 67°F (19°C).
That nearly 10°F (5°C) jump helps keep air temperatures moderate. A warming sea cuts the nighttime chill and softens daytime heat, so the city feels a lot more comfortable than inland spots at the same latitude.
If you’re visiting, the sea usually feels too chilly for swimming in March and April. By late May, though, the water gets more inviting, especially for boating or taking a walk along the coast where the breeze feels milder.
The sea’s influence also brings a fresher, lighter feel in spring compared to the sticky summer months. In May, the combo of warm air and mild sea temperatures creates some of the nicest weather you’ll get all year.
Spring Precipitation Patterns
Spring in Yokohama brings a gradual rise in rainfall as the months pass. Early spring tends to be moderate, but late spring starts hinting at the wetter summer ahead.
Rain doesn’t usually mess up your plans, but it’s something to keep in mind.
Monthly Rainfall Amounts
Yokohama’s spring rainfall increases slowly from March through May. In March, you’ll get around 79 mm (3.1 in) of precipitation.
April stays about the same, also near 79 mm (3.1 in). By May, rainfall dips a bit to about 65 mm (2.6 in).
So, March and April are the wetter months, while May gives you a small break before summer’s heavy rains kick in. The numbers aren’t extreme, but they’re enough to keep the air humid and the city’s greenery looking vibrant.
Here’s a quick look:
| Month | Avg. Rainfall |
|---|---|
| March | ~79 mm (3.1 in) |
| April | ~79 mm (3.1 in) |
| May | ~65 mm (2.6 in) |
Number of Rainy Days
The number of rainy days also shapes your spring experience in Yokohama.
March usually sees about 9–11 rainy days, April averages 10–12 days, and May drops a little with 8–10 days.
Spring rain usually comes as light showers instead of long, heavy downpours. That makes it easier to adjust your plans, since many days might only see a quick sprinkle.
You’ll still have plenty of clear or partly cloudy days for getting outside.
Carrying an umbrella is smart, but you won’t run into the drawn-out rain events that the summer monsoon brings.
Rainfall Compared to Other Seasons
If you look at spring precipitation compared to the rest of the year, you’ll see why so many visitors find this season comfortable.
Winter is the driest, with January averaging just 40 mm (1.6 in). Spring is wetter than winter but still pretty manageable.
Summer and early autumn are a different story—much rainier. June starts the East Asian monsoon, and totals often go above 150 mm (6 in).
October also gets heavy, peaking at about 126 mm (5 in).
Spring lands in the middle, so rain is there but doesn’t usually stop you from enjoying the city or its outdoor spaces.
Humidity and Comfort Levels
Spring in Yokohama brings moderate humidity that gradually rises from March through May. These changes affect how warm or cool the air feels, and they can make a difference in how comfortable you feel outside.
Relative Humidity Trends
Yokohama’s humid subtropical climate means humidity is always part of the picture. In early spring, relative humidity averages around 55–60%, which feels pretty comfortable.
By late May, levels climb closer to 70%, so the air feels heavier even when temperatures aren’t that high.
This slow increase happens as the Pacific brings in more moisture, and cloud cover becomes more common. You might notice mornings and evenings feeling more humid than midday, especially on calmer days.
Humidity can swing a lot from day to day. A sunny March afternoon might feel crisp, but a cloudy May day can feel muggy even at the same temperature.
That’s why 68°F in April feels pleasant, but the same temperature in May can feel warmer.
Impact on Outdoor Activities
Humidity definitely affects how you enjoy outdoor activities in spring. When the air is drier in March and early April, walking, sightseeing, or hiking feels easy and comfortable.
Cooler temperatures and moderate humidity make this the best time for physical activity.
By May, higher humidity can make things feel a bit more tiring. If you’re planning to explore parks or the waterfront, try to get out earlier in the day when it’s less sticky.
Bring water and wear lighter clothes to help you stay comfortable.
Rainfall also ticks up toward late spring, adding to the damp feeling. Showers are usually brief, but they can bump up the humidity quickly.
Staying flexible with your outdoor plans helps you enjoy Yokohama’s scenery without too much discomfort.
Day Length and Sunshine Hours in Spring
In Yokohama, spring means longer daylight and a steady increase in sunshine.
These shifts change how much time you get outside and just how bright the days feel compared to winter.
Average Daylight Duration
Daylight ramps up fast during spring. In March, you’ll get about 12 hours of daylight. Sunrise happens around 5:45 a.m., and sunset is near 5:45 p.m.
By April, days stretch to roughly 13 hours. Sunrise shifts earlier to about 5:27 a.m., and sunset lands around 6:02 p.m.
May brings nearly 14 hours of daylight. The sun starts coming up close to 4:30 a.m., and you’ll see it set near 6:45 p.m. That extra daylight means more time for wandering the waterfront or checking out outdoor events—pretty nice if you ask me.
You’ll find it easier to catch spring flowers like cherry blossoms and azaleas in natural light. Since the daylight change is predictable, you can plan your activities with a bit more confidence.
Number of Sunny Days
Spring in Yokohama usually brings a mix of clear and cloudy weather. On average, you’ll see 6 to 9 hours of sunshine per day in March and April.
By May, cloud cover increases a bit before the summer rainy season, so sunshine hours might dip. March often has more bright days than April or May, when overcast skies show up more often.
Still, you’ll usually get a few sunny days each week. For planning, keep in mind that spring isn’t the sunniest season, but you’ll have enough clear days for outdoor activities.
It’s smart to keep your schedule flexible, since sudden rain showers or stretches of clouds can pop up.
Best Times to Visit Yokohama in Spring
Spring in Yokohama feels mild, with blooming landscapes and comfortable weather for exploring. You’ll enjoy the season most if you time your visit with the best weather and the city’s cultural highlights.
Ideal Weather Windows
You’ll usually find the most comfortable spring weather from late March through mid-May. Daily highs hang out between 13°C and 20°C (55°F to 68°F), while lows stay cool but not too chilly. Humidity stays moderate, which keeps the air fresh and the skies pretty clear.
Early spring—late March to early April—brings cooler days, with highs around 10°C–15°C (50°F–59°F). If you like crisp mornings and smaller crowds, this could be your sweet spot.
By late April and into May, temperatures climb to about 18°C–21°C (64°F–70°F). These weeks feel great for outdoor sightseeing, with the warmth balanced by breezes from Yokohama Bay. Rain showers happen, especially in April, so tossing a small umbrella in your bag makes sense.
If you want to skip the heavier rain that hits in June, try to visit before mid-May. This way, you’ll get your best shot at stable weather and all the seasonal scenery.
Popular Spring Events and Activities
Spring in Yokohama feels inseparable from its cherry blossom season, which usually peaks between late March and early April. Locals and visitors alike flock to Sankeien Garden, Yamashita Park, and the walking paths along the Ōoka River to see the pink blooms.
People gather for hanami (flower viewing picnics) during this time. It’s easy to join them—just bring some snacks and drinks, and hang out under the trees.
April and May tend to bring a bunch of outdoor festivals and cultural events. The Yokohama Red Brick Warehouse puts on seasonal markets, and Minato Mirai lights up with spring displays and waterfront activities.
If you swing by in May, you might catch the Yokohama Port Festival. The city celebrates its history as a major international port with parades, concerts, and fireworks.
All of this, paired with the mild weather, makes Yokohama feel especially lively and comfortable for travelers.