Public forecast
Using degrees Celsius for public forecast. Weather courtesy of Meteomatics.
Closest aviation weather report (METAR) to Seibu Karuizawa Heliport
Report is more than 2 hours old.
Closest report is Shinshu-Matsumoto Airport, 35.3 nm (65.3 km) WSW.
2026/08/31 09:00 (retrieved 4 hours ago)
RJAF 310900Z 33007KT 9999 -SHRA FEW005 SCT015 BKN100 24/22 Q1016
Closest aviation forecast (TAF) to Seibu Karuizawa Heliport
Forecast is more than 6 hours old.
Closest forecast is Yokota Air Base, 48.0 nm (88.8 km) SE.
2026/08/31 05:00 (retrieved 8 hours ago)
TAF RJTY 310500Z 3105/0111 VRB06KT 9999 SCT020 BKN030 QNH2997INS BECMG 3114/3115 07006KT 4800 -SHRA BKN012 OVC020 QNH3005INS BECMG 3122/3123 36008KT 9999 NSW BKN018 QNH2997INS BECMG 0104/0105 15009KT 9999 SCT020 BKN030 OVC040 QNH2995INS TX29/3105Z TN23/3120Z