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Tokyo (RJTT) is currently 26°C. Today's high so far is 27°C (reached 01:30 local). Yesterday's high was 31°C (today is cooler by 4°).
Latest RJTT METAR: METAR RJTT 040600Z 04007KT 9999 -RA FEW020 SCT140 BKN/// 26/22 Q1010 NOSIG
Tokyo Haneda's daily high forms in the early afternoon; we track JMA's AMeDAS air temperature at the airport (10-minute), ahead of the half-hourly METAR. polyweather.today tracks minute-by-minute runway temperatures from Tokyo Haneda Airport (RJTT) (RJTT) — the same sensors behind the official METAR — and turns the trend into a next-METAR nowcast, so you can read where Tokyo's temperature is heading before the next METAR prints.
A METAR is the airport's official routine weather observation (the TAF is the matching forecast). Tokyo Haneda Airport (RJTT) issues a new RJTT METAR roughly every 30–60 minutes, and daily-high temperature markets settle on those reports. The latest raw RJTT METAR is shown at the top of this page, the board lists recent reports with decoded temperatures, and between two reports the minute-level runway feed shows where the next METAR is heading.
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Want to know exactly how Tokyo's temperature market settles (which station, what precision, what rounding)? See how each city settles →
View-only data — not betting or financial advice.