Today's weather: highs of 23°C to 28°C in four major Japanese cities

Tokyo 16°C at 06:00 to 25°C at 15:00; Osaka 19–28°C

Tokyo is forecast to be sunny today, with a low of 16°C and a high of 25°C. The temperature is forecast at 16°C at 06:00, 21°C at 09:00 and 25°C at 15:00, with a 20% chance of precipitation and 0 mm expected.

Osaka is forecast to be sunny, with temperatures between 19°C and 28°C and 0 mm of precipitation. The Clothing Index points to short sleeves in both cities, and the Heatstroke Index (WBGT) shows low risk in both.

For air quality, Tokyo's daily category is Lightly Polluted, with Good at 06:00. Osaka's daily category is Moderately Polluted, with Good at 12:00 and Lightly Polluted at 18:00.

Fukuoka: 30% daily rain chance, Excellent activity index

Fukuoka is forecast to be sunny then cloudy today, with a low of 20°C and a high of 28°C. The temperature is forecast at 21°C at 06:00, 27°C at 12:00 and 28°C at 15:00.

The daily chance of precipitation is 30%, with 0 mm expected, and the hourly forecasts at 06:00 and 15:00 both show 0%. The Activity Index and Driving Index are both Excellent, the Clothing Index points to short sleeves, and the Heatstroke Index (WBGT) shows low risk.

Fukuoka's daily air quality category is Lightly Polluted, with Excellent at 06:00 and Good at 09:00.

Sapporo: 13°C low, Excellent driving index, Good air

Sapporo is forecast to be sunny with occasional clouds today, with a low of 13°C and a high of 23°C. The temperature is forecast at 13°C at 06:00 and 22°C at 12:00, and the sky is forecast to be cloudy at 18:00 with 18°C. At 06:00 the forecast is sunny with a 0% chance of precipitation.

The daily chance of precipitation is 20%, with 0 mm expected. The Clothing Index suggests long sleeves, the Activity Index and Driving Index are both Excellent, and the Heatstroke Index (WBGT) shows low risk.

Air quality is Good for the daily category and at 06:00.