Yokohama, Japan experiences a diverse climate that changes significantly throughout the year.
The hot season lasts from late June to mid-September, with temperatures rising above 79°F. August is the hottest month, averaging highs of 86°F and lows of 76°F.
In contrast, the cool season stretches from early December to late March, with average daily highs below 56°F.
Yokohama’s weather varies across seasons, with January being the coldest month. During this time, temperatures average around 44°F, ranging from a low of 37°F to a high of 50°F.
The city also sees its highest rainfall in October, averaging 4.96 inches over nearly 16 days.
This variety in weather ensures that visitors can experience everything from warm, sunny days to cooler, more temperate conditions.
Visitors can plan their trips around these weather patterns to make the most of their stay.
For those who prefer milder weather, the months of May, June, and October are ideal, with temperatures between 68°F and 79°F. This makes it an excellent time for sightseeing and outdoor activities.
For more detailed monthly weather data and forecasts, check out this comprehensive monthly weather guide to Yokohama.
Average Temperature in Yokohama, Japan
Yokohama experiences a range of temperatures throughout the year.
The coldest month is January, with average lows around 37°F and highs near 49°F.
In contrast, the hottest month is August, with average highs reaching 86°F and lows around 76°F.
Monthly Average Temperatures
| Month | Low (°F) | High (°F) |
|---|---|---|
| January | 37 | 49 |
| February | 38 | 51 |
| March | 42 | 56 |
| April | 50 | 65 |
| May | 58 | 73 |
| June | 66 | 79 |
| July | 72 | 84 |
| August | 76 | 86 |
| September | 70 | 81 |
| October | 60 | 70 |
| November | 51 | 61 |
| December | 41 | 54 |
Additional Details
During the summer months of June to September, the temperatures remain warm with average highs above 70°F.
In winter, from December to February, temperatures drop significantly.
Rainfall is quite frequent in October, which can impact the temperature and make it feel cooler.
The temperatures start to warm up again in April and May, making these months pleasant for visitors.
Residents and travelers alike should prepare for a variety of temperatures depending on the season. The variation makes Yokohama an interesting destination year-round.
Average Precipitation in Yokohama, Japan
Yokohama experiences varied precipitation throughout the year, with rain being more common than snow. The city receives significant rainfall, especially during certain months.
Average Rainfall in Yokohama, Japan
Rainfall in Yokohama is highest during the months of June, July, and October.
June through September constitute the rainiest season, with June starting off the summer season with significant rain.
The city receives around 4.96 inches of rainfall in October.
The following table highlights the average monthly rainfall:
| Month | Rainfall (in) |
|---|---|
| January | 2.17 |
| February | 2.48 |
| March | 3.23 |
| April | 4.02 |
| May | 5.12 |
| June | 6.69 |
| July | 7.61 |
| August | 6.10 |
| September | 7.42 |
| October | 4.96 |
| November | 3.00 |
| December | 2.56 |
Average Snow in Yokohama, Japan
Snowfall in Yokohama is rare. When it does snow, it typically occurs in the coldest months, especially January and February.
However, snowfall is usually light and does not accumulate significantly.
On average, Yokohama receives minimal snowfall, making the city more known for its rainy weather rather than snowy conditions.
Snow and ice events are rare but can affect transportation and daily life briefly.
The average temperature in January, the coldest month, hovers around 37°F to 49°F. Due to these relatively mild winter temperatures, snow rarely amounts to much.
Yokohama’s limited snow and ice presence makes it a more rain-dominant city throughout the year.
Average Sun in Yokohama, Japan
Yokohama experiences varying levels of sunlight throughout the year. The sunniest months are in summer, while the winter months see less daylight. This affects daily activities and the UV index.
Average Daily Shortwave Solar Energy in Yokohama, Japan
The amount of solar energy reaching Yokohama varies by season.
Summer months receive the most sunlight with June, July, and August being the sunniest.
During these months, the average daily shortwave solar energy is notably higher.
| Month | Solar Energy (kWh/m²) |
|---|---|
| January | 2.8 |
| February | 3.9 |
| March | 4.6 |
| April | 5.5 |
| May | 5.9 |
| June | 6.2 |
| July | 6.4 |
| August | 6.3 |
| September | 5.3 |
| October | 4.3 |
| November | 3.5 |
| December | 2.6 |
The UV index in summer months can be quite high. People need to take precautions like wearing sunscreen, hats, and sunglasses.
In winter, the UV index is lower, but it’s still important to protect your skin.
December and January have the least amount of daylight, leading to shorter days.
Summer months such as July and August have the longest daylight hours. The difference in daylight duration affects daily life, energy consumption, and outdoor activities.
This indicates that planning outdoor activities could be more enjoyable in the sunnier months due to longer daylight hours and higher levels of solar energy.
Average Humidity in Yokohama, Japan
Yokohama experiences varying levels of humidity throughout the year. Relative humidity is a measure of the amount of moisture in the air compared to how much moisture the air can hold at a given temperature. This affects how hot or cold it feels outside.
The highest humidity occurs during the summer months. In July, the average relative humidity is around 78%.
Winter months have lower humidity levels. In January, the least humid month, the average relative humidity drops to 54%.
Monthly Average Humidity
| Month | Relative Humidity (%) |
|---|---|
| January | 54 |
| February | 57 |
| March | 61 |
| April | 63 |
| May | 67 |
| June | 75 |
| July | 78 |
| August | 77 |
| September | 74 |
| October | 70 |
| November | 65 |
| December | 58 |
Average Wind in Yokohama, Japan
Wind patterns in Yokohama, Japan, show notable variations throughout the year. The wind speed fluctuates, often becoming a noticeable factor during certain months.
Yokohama experiences the most wind during the winter months.
Typical wind speeds by month are as follows:
| Month | Average Wind Speed (mph) | Average Wind Speed (km/h) |
|---|---|---|
| January | 14 mph | 22.5 km/h |
| February | 15 mph | 24.1 km/h |
| March | 14 mph | 22.5 km/h |
| April | 12 mph | 19.3 km/h |
| May | 11 mph | 17.7 km/h |
| June | 10 mph | 16.1 km/h |
| July | 9 mph | 14.5 km/h |
| August | 9 mph | 14.5 km/h |
| September | 10 mph | 16.1 km/h |
| October | 11 mph | 17.7 km/h |
| November | 13 mph | 20.9 km/h |
| December | 14 mph | 22.5 km/h |
The windiest month is February, with wind speeds averaging 15 mph (24.1 km/h).
Wind direction tends to be from the northwest and northeast during the winter.
During the summer, the wind patterns are milder. Wind speeds average 9 to 10 mph (14.5-16.1 km/h), mainly coming from the south or southeast.
Wind can affect daily life in Yokohama, influencing everything from comfort levels to maritime activities.
Average Air Quality in Yokohama, Japan
Yokohama generally enjoys good air quality for most of the year. The city’s Air Quality Index (AQI) is usually within a range that is safe for the general population.
Monthly Air Quality Data:
| Month | AQI (μg/m³) |
|---|---|
| January | 12.0 |
| February | 10.8 |
| March | 11.0 |
| April | 10.5 |
| May | 9.8 |
| June | 9.9 |
| July | 10.2 |
| August | 10.5 |
| September | 10.1 |
| October | 10.0 |
| November | 10.2 |
| December | 11.5 |
Yokohama ranks 362nd out of all cities in Japan for air quality, indicating fairly clean air.
The city has some months with higher pollution levels, but these are few and usually not severe. Lower pollution levels in other months help maintain a good overall air quality.
Certain months experience minor issues, mainly in winter when the temperature drops. The mean dew point is around 50°F, indicating moderate humidity levels which do not significantly impact air quality.
Visibility in Yokohama is usually clear, providing good outdoor conditions most of the year.
Pressure and Dew Point:
| Metric | Value |
|---|---|
| Average Pressure | 30.0 inches |
| Dew Point | 50°F |
Yokohama’s air quality combined with humidity levels provides a pleasant living environment. The sea temperature also contributes to an enjoyable atmosphere, especially during summer when the water is warm enough for swimming but not excessively hot.
Topography of Yokohama, Japan
Yokohama is a coastal city located in the Kanagawa Prefecture, Japan. Its location along Tokyo Bay gives it a unique blend of urban and natural landscapes.
Geographic Location
- Coordinates: 35.4437° N, 139.6380° E
- Elevation: Ranges from sea level to over 328 feet (100 meters) in some areas
Terrain Features
- Coastal Plains: Much of Yokohama lies on flat land near the coast. This makes it easy for construction and urban development.
- Hills: The western part of the city features gentle hills. These areas provide scenic views and are popular residential zones.
Water Bodies
- Tokyo Bay: Yokohama’s eastern border is lined by the bay. This has historically been crucial for trade and transportation.
Vegetation
- Urban Parks: Green spaces like Yamashita Park and Harbor View Park offer lush landscapes amidst the city.
- Mountains Nearby: While not part of Yokohama itself, nearby mountains add to the scenic backdrop.
Climate Impact
Yokohama’s topography influences its climate patterns. The sea moderates temperatures, so summers are warm and humid, while winters are milder compared to inland areas.
- Temperature Range: 37°F to 87°F
- Rainfall: Peaks in October with about 4.96 inches of precipitation
Urban Development
The flat coastal plains have allowed for extensive urban development. High-rise buildings coexist with historic sites, creating a dynamic cityscape.
Accessibility
Yokohama’s topography ensures easy access to Tokyo and other key regions in Japan via roads and railways, making it an important hub for both commerce and tourism.
Climate and Average Weather Year Round in Yokohama documents further details about the impact of Yokohama’s coastal geography on its weather patterns.
Extreme Weather Events that Occur in Yokohama, Japan
Yokohama experiences various extreme weather events due to its climate. These events include heavy rainfall, typhoons, and heatwaves.
Heavy Rainfall
Heavy rainfall can occur during the rainy season, which typically lasts from June to July. For instance, the national weather agency recorded significant rainfall in nearby regions like Fukuoka and Oita, leading to severe flooding and mudslides. Rainfall during these months can reach up to 16 inches.
Typhoons
Typhoons are another major extreme weather event in Yokohama. Typhoon season generally occurs between August and September. Typhoons bring strong winds and heavy rains, often causing flooding and power outages. The impact of typhoons can be severe, affecting transportation and daily activities.
| Month | Average Rainfall (inches) |
|---|---|
| June | 10 |
| July | 16 |
| August | 12 |
| September | 14 |
Heatwaves
Heatwaves are becoming more frequent due to climate change. Summers in Yokohama can be extremely hot, with temperatures often exceeding 95°F. For example, Japan experienced its hottest July ever recorded, with temperatures in some areas reaching over 100°F. Prolonged heat can lead to health issues like heatstroke, especially among the elderly and those with pre-existing conditions.
Precautionary Measures
- Stay hydrated
- Avoid outdoor activities during peak heat hours
- Follow local weather advisories
Best Time of the Year to Visit Yokohama, Japan
Yokohama offers a range of experiences throughout the year, each season bringing its unique charm. Picking the best time to visit can depend on your preferences for weather and activities. Here, we break down what each season has to offer.
What Is Yokohama, Japan Like in Spring
Spring in Yokohama begins in March and lasts through May. This period is known for the blooming cherry blossoms, known as sakura.
Average temperatures range from 48°F in March to 68°F in May, making it a pleasant time to explore the city.
Rainfall is moderate in spring, allowing for comfortable sightseeing and outdoor activities. This season is particularly popular for visiting public parks and enjoying festivals.
Monthly Averages:
| Month | Average High (°F) | Average Low (°F) | Rainfall (Inches) |
|---|---|---|---|
| March | 54 | 37 | 3.7 |
| April | 64 | 46 | 4.2 |
| May | 72 | 55 | 5.0 |
What Is Yokohama, Japan Like in Summer
Summer in Yokohama runs from June to September. It is the hottest time of the year, with temperatures frequently reaching 86°F in August.
This season also brings high humidity and increased rainfall.
Despite the heat, summer is vibrant with festivals and fireworks. Be prepared for occasional showers, which can provide a welcome respite from the heat.
Monthly Averages:
| Month | Average High (°F) | Average Low (°F) | Rainfall (Inches) |
|---|---|---|---|
| June | 75 | 64 | 6.9 |
| July | 82 | 70 | 6.7 |
| August | 86 | 76 | 6.4 |
| September | 81 | 68 | 9.4 |
What Is Yokohama, Japan Like in Fall
Fall, spanning October to November, is considered the best time to visit by many travelers. The weather is mild with average highs of around 71°F in October and cooling to 61°F in November.
The autumn leaves changing colors create a beautiful landscape. This season is ideal for outdoor activities and sightseeing in the city’s gardens and parks.
Monthly Averages:
| Month | Average High (°F) | Average Low (°F) | Rainfall (Inches) |
|---|---|---|---|
| October | 71 | 57 | 6.0 |
| November | 61 | 48 | 4.3 |
What Is Yokohama, Japan Like in Winter
Winter in Yokohama lasts from December to February. This season is the coldest, with temperatures often ranging between 37°F and 49°F in January.
Snow is rare but not impossible.
Clear, crisp days are common, and tourism spots are less crowded, offering a peaceful experience.
Monthly Averages:
| Month | Average High (°F) | Average Low (°F) | Rainfall (Inches) |
|---|---|---|---|
| December | 52 | 39 | 2.4 |
| January | 49 | 37 | 2.0 |
| February | 50 | 38 | 3.1 |