Sendai Weather Today
Check outfit recommendations and activity index
Sendai Miyagi
Partly Cloudy
Feels like 3°
66%
Bring umbrella
Hourly Weather
1m/s
Light breeze
Index 0
Low (No protection needed)
61%
Slightly humid
10km
Excellent
06:06 AM
Sun rises at
05:32 PM
Sun sets at
Air Quality Moderate · PM2.5 12.8 µg/m³
ModerateNo impact for most people. However, sensitive groups (asthma, heart/lung disease, elderly, pregnant, children) should limit prolonged intense outdoor activity.
💡 General: Normal activity · Sensitive groups: Caution with intense activity
Activity Index
Better for indoor activities
Enjoy a cozy time at a café or indoors
Score Breakdown
- • Feels like 3°C: 0/30
- • Avg rain chance after now 66%: 9/25
- • Wind 1.1m/s: 15/15
- • Humidity 61%: 7/10
- • UV index 0: 10/10
- • PM2.5 12.8µg/m³: 7/10
Today's Outfit Recommendation
Recommended for 4°C weather
💡 Tip: Dress warmly before heading out
Complete Sendai Weather Guide
Temperature Analysis & Outfit Recommendations
The current temperature in Sendai is 4°C. Very cold mid-winter weather requiring maximum cold protection. A long puffer jacket or down parka is essential, and thermal underwear should be worn top and bottom.
Understanding Wind & Feels-Like Temperature
Current wind speed in Sendai is 4 km/h. This is light wind with comfortable weather conditions. Wind has minimal impact, so actual and feels-like temperatures will feel very similar.
How Humidity Affects Your Body
Current humidity is 61%. This is in the comfortable humidity range where your body feels most at ease. Generally, 40-60% humidity is considered ideal.
Weather Tips by Time of Day
Weather changes significantly throughout the day. Generally, temperature gradually rises after sunrise, peaks around 2-3 PM, then drops again.
🌅Morning (6:00-9:00 AM)
Morning is the coolest time of day. Overnight radiative cooling causes ground-level heat to escape into the atmosphere, bringing temperatures to their lowest. Choose your commute outfit carefully—layering is the best approach. If you exercise in the morning, warm up thoroughly.
☀️Midday (12:00-3:00 PM)
Between noon and 3 PM is the hottest time of day. The sun is at its highest angle, maximizing ground-level solar radiation, and UV is strongest during this period. In summer, it's best to stay indoors during peak heat.
🌆Evening (6:00-9:00 PM)
Temperature drops rapidly as the sun sets. Especially in autumn and winter, temperatures can fall 5-10 degrees within 1-2 hours after sunset. Be sure to bring a jacket for the commute home.
Weather Health Tips
💧 Proper Hydration
Adults should drink 2-2.5 liters of water daily. However, weather conditions change how much you need. In hot weather or during exercise, you may need 3+ liters due to sweat loss. Drink before you feel thirsty, and sip small amounts frequently rather than drinking large volumes at once.
☀️ UV Protection
UV radiation is a leading cause of skin aging and increases skin cancer risk with prolonged exposure. Even on cloudy days, 80% of UV passes through clouds, so UV protection is needed regardless of weather. Use SPF 30+ products and reapply every 2-3 hours. Combine with hats and sunglasses for physical blocking.
🤧 Seasonal Health
Transitional seasons bring large temperature swings and rapid weather changes, making colds and flu more likely. Sudden temperature changes stress your immune system and weaken resistance. Adjusting clothing is most important—wash hands frequently, get enough sleep, and maintain balanced nutrition to boost immunity.
Frequently Asked Questions
Why does feels-like temperature differ from actual?
Feels-like temperature factors in wind, humidity, and sunlight along with actual temperature. Strong wind makes it feel colder (wind chill effect), while high humidity makes it feel hotter. Check both actual and feels-like temperatures when planning your day.
How to prepare for large temperature swings?
When the daily range exceeds 10 degrees, layering is key. Bring outerwear when heading out in the morning, and wear multiple layers you can remove when it warms up. Keep a light cardigan or thin jacket in your bag. The ideal setup is a base layer, mid layer, and outer layer.
How accurate is the weather data?
Weather forecasting uses advanced science but can't be 100% accurate. Short-term forecasts (1-3 days) are 80-90% accurate, with accuracy decreasing for longer forecasts. Make it a habit to check the weather one more time just before heading out.
Helpful Information
• Weather data is updated in real-time using international meteorological data.
• Outfit recommendations are general guidelines—adjust based on your personal preference and comfort.
• During extreme weather (heat waves, cold snaps, typhoons), check official weather warnings and prioritize safety.
• Find more weather tips and lifestyle information in the Lifestyle and Weather Tips pages in the menu above.