Weather radar Sendai
Real-time precipitation radar · Miyagi · Japan
Sendai climate table – average temperature, precipitation & sunshine hours
The climate table for Sendai shows long-term monthly averages (2000–2023): average high and average low temperature in °C, monthly precipitation (mm), rainy days and sunshine hours per month. Data source: ERA5 reanalysis (ECMWF) via the WDTEC Climate Archive.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 5.5° | 6.8° | 11.9° | 17.5° | 21.5° | 25.6° | 29.9° | 30.6° | 26.9° | 20.4° | 15.1° | 8.1° |
| Avg low (°C) | -1.2° | -0.8° | 2.8° | 7.7° | 12.5° | 18.4° | 23.4° | 24.3° | 20.2° | 12.4° | 6.2° | 1.3° |
| Precipitation (mm) | 55 | 53 | 99 | 91 | 129 | 136 | 155 | 179 | 164 | 110 | 73 | 71 |
| Rainy days | 14 | 10 | 13 | 10 | 12 | 13 | 19 | 21 | 17 | 13 | 9 | 14 |
| Sunshine hours | 236 | 234 | 261 | 276 | 273 | 268 | 266 | 278 | 233 | 220 | 232 | 218 |
| Humidity | 74% | 70% | 69% | 69% | 74% | 81% | 83% | 84% | 84% | 80% | 77% | 77% |
Best time to visit Sendai
The best time to visit Sendai is typically April. In this month the average high is 17.5°C, precipitation is 91 mm and sunshine duration is 276 hours. The annual average high is 18.3°C, total annual precipitation is 1315 mm (165 rainy days/year) and annual sunshine is 2995 hours.
Frequently asked questions about the weather in Sendai
How up to date is the weather radar for Sendai?
The weather radar for Sendai is updated every 5 minutes with new radar data from the OPERA composite radar. A 2-hour forecast animation is also available. Rainfall probability, wind gusts and UV index are available up to 14 days in advance.
What weather data is available for Sendai?
Besides the rain radar, RadarWeather provides for Sendai: rainfall probability, thunderstorm warning (CAPE index), wind gusts, UV index, air pressure, humidity, dew point, sunshine hours, snow line and a 14-day forecast based on ICON-D2, ECMWF IFS and GFS.
When are thunderstorms expected in Sendai?
The thunderstorm potential for Sendai is calculated from the CAPE index and lightning potential. Active storm cells and severe weather warnings are visible on the radar map in real time. Thunderstorm warnings are issued automatically as soon as storm cells are detected near Sendai.
What is the climate like in Sendai?
Sendai has an annual average high of 18.3°C. The warmest month is August (avg high 30.6°C), the coldest January (avg low -1.2°C). The wettest month is August with 179 mm, the driest February with 53 mm. Total annual precipitation is 1315 mm (165 rainy days). Annual sunshine is 2995 hours.