The Japan Weather Association presents the official weather app *tenki.jp* — your comprehensive tool for checking real-time weather conditions using advanced rain cloud radar, torrential rain alerts, and detailed precipitation tracking. Whether you're preparing for an earthquake, monitoring seasonal changes like autumn leaves, or staying ahead of cyclones, pollen, and UV protection, *tenki.jp* delivers all the essential weather insights in one place.

Major Updates to the tenki.jp App – Now More Convenient Than Ever

**Temperature Difference Push Notifications – Perfect for Those Sensitive to Climate Changes!**
Stay informed with automatic push notifications when the temperature difference compared to the previous day reaches 5℃ or more. This feature helps you prepare for sudden cold snaps or unexpected warm-ups, making it easier to plan your wardrobe and outdoor activities. It’s a powerful tool for managing seasonal shifts and avoiding discomfort due to temperature fluctuations.

What is tenki.jp? The Ultimate Weather Forecast App

Developed by the Japan Weather Association, *tenki.jp* is one of the most trusted and widely used weather apps in Japan. With 24/7 forecasts created by professional meteorologists nationwide, the app ensures you always have access to accurate and up-to-date weather news. Best of all, every function is available completely free of charge.

Key Features:

• Disaster Alert System: Functions as an earthquake and disaster prevention alert app, keeping you prepared for typhoons, tremors, and other emergencies.
• Detailed Forecasts: Includes two-week outlooks (Tenkiyohou), hourly forecasts, and current rain conditions via rain cloud radar.
• Comprehensive Weather Insights: Offers expert commentary from certified forecasters, real-time earthquake early warnings, barometric pressure updates (ideal for headache prevention), UV and pollen reports, and much more.
• Seasonal Intelligence: Stay updated on typhoon paths, torrential rain predictions, heatstroke risk levels, rainy season status, and pollen activity.

Advanced Rain Cloud Radar Up to 48 Hours Ahead

Enjoy exclusive access to the Amagumo Radar, which predicts rain cloud movement up to 48 hours in advance. This popular feature is especially useful for anticipating low-pressure systems, thunderstorms, and even weather-related headaches. Plus, it's completely free to use!

*Note: A "free domestic weather forecast app" means the service provider is a licensed Japanese forecasting business operator. (*Research by Tokyo Shoko Research, January 2023)

Complete Pollen Defense with Detailed Allergy Information

One of the most loved features of *tenki.jp* is its extensive pollen tracking system. Easily check today’s pollen count or view weekly forecasts. The app also provides cedar and cypress pollen scatter prediction maps, helping allergy sufferers prepare effectively.

Top 10 Reasons to Use tenki.jp

1. Hourly forecasts for every city, town, and village — searchable by facility name
2. Extended 10-day weather outlooks longer than standard weekly forecasts
3. Current data including temperature, humidity, wind speed/direction, rainfall, atmospheric pressure, UV index, and pollen levels
4. Free access to 48-hour rain cloud radar (Amagumo Radar)
5. Daily forecaster commentary updated multiple times per day
6. Real-time weather and rain cloud alerts
7. Forecast widgets for quick home screen viewing
8. Enhanced disaster prevention bulletins including earthquake and tsunami updates
9. Customizable lifestyle indexes such as laundry, clothing, and stargazing indicators
10. Optional ad-free mode available for just ¥120/month

Four Core Categories at Your Fingertips

1. Weather Forecast
2. Earthquake & Disaster Prevention News
3. Reading Material
4. Weather Maps

Today and Tomorrow's Weather (Tenkiyohou)

• Check local weather or register up to 10 favorite locations
• View hourly breakdowns of weather, temperature, precipitation chance, humidity, rainfall volume, and wind data
• *Requires GPS to use location-based features

10-Day Extended Forecast

• Longer than traditional TV forecasts
• 6-hour interval forecasts for weather, temperature, and precipitation probability

Live Weather Observations

• Access current temperature and rainfall data from the nearest observation point
• Review AMeDAS records nationwide in 10-minute intervals
• Real-time and predictive rain cloud radar (Amagumo Radar) available

Custom Lifestyle Indexes

• Quick-access icons for laundry, clothing, outings, stargazing, umbrella alerts, UV index, and more
• Set up to 5 preferred icons for easy reference
• Additional seasonal functions include air conditioning tips, mosquito alerts, frost warnings, and moisture control advice

Earthquake & Disaster Alerts

• Instant updates on the latest 20 earthquakes nationwide
• Disaster prevention bulletins covering tsunamis, volcano activity, typhoon advisories, and emergency warnings

Informative Reading Material

• Daily Forecaster reports
• Tenki.jp Supplements with energy-saving tips and seasonal life advice
• Weather Overview posts summarizing Japan Meteorological Agency data

Comprehensive Weather Maps

• Live, 24hr, 48hr, and 72hr weather map forecasts
• Meteorological satellite images with rain cloud radar overlays from 6 hours ago, 3 hours ago, 1 hour ago, and now

Additional Useful Features

• World weather forecasts
• Live weather updates
• Index information (laundry, clothing, UV, etc.)
• Leisure weather reports (mountains, sea conditions)
• Atmospheric pressure tracking for those prone to weather-induced headaches
• Scheduled weather alerts at morning, lunch, evening, and night
• Home-screen widgets for instant weather checks
• Specialized leisure forecasts for mountain climbing and beach outings
• Seasonal guides including cherry blossom bloom dates, rainy season updates, autumn leaf forecasts, and ski snow reports

Subscription & Service Notes

• Ad-free experience available for ¥120/month
• Related app: *tenki.jp Climbing Weather*
• Privacy Policy
• Terms of Service
• Note: Devices with lower resolutions may experience display issues

What's New in Version 2.27.2 (Updated: October 28, 2024)

• Added temperature graphs to Today and Tomorrow’s Weather sections
• Minor design adjustments to enhance the weather forecast interface