Application Description

Official weather forecasts brought to you by the Japan Weather Association. The tenki.jp app is a comprehensive weather solution that allows users to monitor rain conditions using detailed rain cloud radar, track torrential rain events, and stay informed about daily precipitation levels. It also provides critical updates on earthquakes, disaster prevention, seasonal changes like autumn leaves, cyclone-related concerns, pollen alerts, and UV protection advice.

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

For those who are particularly sensitive to temperature fluctuations, we’re excited to introduce the new [Temperature Difference Push Notification] feature. If there’s a temperature change of 5℃ or more compared to the previous day, you’ll receive a push notification alert. This function helps you prepare for sudden drops or spikes in temperature based on your selected location. Use it to plan your wardrobe and outdoor activities more effectively. It’s an essential tool for managing health and comfort during transitional seasons.

What Is Tenki.jp? The Ultimate Weather Forecast App

Tenki.jp is one of Japan's most popular weather forecasting apps developed by the Japan Weather Association. Backed by professional meteorologists across the country, it offers real-time, 24/7 updated weather reports. All features are available for free, making it not only a reliable weather news source but also a trusted disaster prevention tool for events like earthquakes and typhoons.

Key Features:

• Detailed Forecasts: Includes two-week outlooks (Tenkiyohou), hourly breakdowns (Tenkiyoho), and real-time rain cloud radar showing precipitation at your current location.
• Expert Commentary: Daily insights from certified weather forecasters.
• Disaster Alerts: Real-time earthquake early warnings, barometric pressure tracking (for headache prevention), UV radiation data, and pollen information.
• Seasonal Intelligence: Typhoon paths, heavy rain predictions, heatstroke advisories, rainy season status updates, and comprehensive pollen monitoring.
• Advanced Rain Cloud Radar: Up to 48-hour rain prediction via Amagumo Radar—ideal for anticipating low-pressure systems and thunderstorm-related discomfort.

*As a licensed domestic weather service provider in Japan, tenki.jp ensures accuracy and reliability in every forecast. (Source: Tokyo Shoko Research, January 2023)

Top 10 Reasons to Use Tenki.jp

1. Detailed hourly weather forecasts for every city, town, and village (searchable by facility name).
2. Extended 10-day weather outlooks—longer than standard weekly forecasts.
3. Current conditions including temperature, humidity, wind direction/speed, precipitation, atmospheric pressure, UV index, and pollen levels.
4. Free access to 48-hour rain cloud radar (Amagumo Radar) for proactive planning.
5. Daily weather forecaster commentary updated multiple times each day.
6. Push notifications for incoming weather changes and approaching rain clouds.
7. Weather widgets for instant home-screen visibility without launching the app.
8. Comprehensive disaster prevention alerts including typhoon updates, earthquake/tsunami advisories, and volcano activity reports.
9. Customizable lifestyle indices such as laundry, clothing, stargazing, and more.
10. Ad-free browsing option for just ¥120/month while retaining all free features.

Four Core Categories for Easy Navigation

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

Today and Tomorrow’s Weather (Tenkiyohou / Weather News)

• Check current weather for your location or register up to 10 favorite cities/towns/villages.
• Hourly updates on temperature, rainfall probability, humidity, precipitation amount, and wind conditions.
• *GPS must be enabled for accurate local weather readings.

10-Day Weather Forecast (Tenkiyohou / Weather News)

• Long-term forecasts beyond the typical TV weather segment.
• 6-hour interval forecasts for weather, precipitation chance, and temperatures.

Live Observation Data

• Access current temperature and rainfall data from the nearest AMeDAS observation station.
• Review records updated every 10 minutes nationwide.

Real-Time Rain Cloud Radar (Amagumo Radar)

• View live radar for any specific area of interest.
• Free 48-hour rain movement projections.
• Visualize real-time rain cloud dynamics at a glance.

Personalized Lifestyle Indexes

• Quick-access icons for clothing, umbrella use, UV protection, car washing, sleeping conditions, and more.
• Set up to 5 preferred indexes for fast reference.
• Season-specific functions include mosquito alerts, air conditioning tips, frost warnings, and moisture control.

Earthquake Information & Disaster Alerts

• Latest updates on 20 active earthquakes nationwide.
• Disaster bulletins including tsunami advisories, volcanic activity reports, and regional warnings.

Reading Material – Seasonal Insights & Forecaster Tips

• Articles from “Nippon Forecaster” covering energy, disaster preparedness, and seasonal topics.
• “Tenki.jp Supplement” columns focused on life, weather patterns, and seasonal trends.
• “Weather Overview” posts summarizing official JMA weather summaries for registered locations.

Weather Map Tools

• Access live weather maps plus 24, 48, and 72-hour forecasts.
• Overlay satellite images with rain cloud radar (Amagumo Radar) from various time intervals.

Additional Useful Functions

• World weather forecasts, mountain weather reports, and sea condition updates.
• Barometric pressure data to help manage headaches caused by pressure shifts.
• Scheduled weather notifications for morning, lunchtime, evening, or night hours.
• Home screen widget for quick status checks without opening the app.
• Leisure-focused forecasts for popular outdoor spots—mountains, beaches, and more.
• Specialized seasonal content including cherry blossom tracking, rainy season updates, autumn foliage reports, and snowfall forecasts for ski enthusiasts.

Notice

• Flat-rate ad-free mode: Enjoy uninterrupted experience for ¥120/month.
• Explore related apps like *tenki.jp Climbing Weather* for niche forecasts.
• Review our Privacy Policy and Terms of Service.
• *Note: Some devices with lower resolutions may experience display issues.

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

• Added temperature graphs for today and tomorrow's weather section.
• Minor design refinements to enhance user experience.

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