Tokyo sits at 35.7°N under one of the largest light domes on Earth — yet the ISS at magnitude −4 outshines all of it, crossing at up to 90° elevation. The metropolis that hosts JAXA's operations can watch the station, China's Tiangong and Starlink trains pass overhead. Slip out to the Tama River or the western hills and the fainter traffic appears too.
Evening twilight begins ~25–30 minutes after sunset. Best months: late autumn and winter (November–February), when the dry northwesterly monsoon brings crisp, transparent skies. Avoid the tsuyu rainy season (June–mid-July) and the August–September typhoon season.
🛰 SEE SATELLITES OVER TOKYO NOW 🛰 SEE SATELLITES OVER TOKYO NOWThe ISS is visible during twilight — roughly 25–35 minutes after sunset or before sunrise. At 35.7°N Tokyo gets passes up to 90° elevation, and at magnitude −4 the station cuts straight through the city's light dome. Tokyo stays on JST year-round with no daylight saving. Yoyogi Park or the open Tama River banks give the clearest sightlines in the city.
Tokyo can see the ISS (magnitude −4), China's Tiangong station (same orbit, slightly dimmer and a notable sight from Japan), the Hubble Space Telescope (~29° max from this latitude), AST BlueBirds, and Starlink trains after launches. The fainter objects need a dark site like Okutama or the Izu Peninsula.
In the city, Yoyogi Park, Komazawa Olympic Park and the wide Tama River embankments give open sky with less direct glare. For darker skies head west to Mount Takao (~50km, Bortle ~4–5) or Okutama (~70km, Bortle 3–4), or south to the Izu Peninsula for proper darkness and a clean Pacific horizon.
Yes for the bright ones — the ISS and Tiangong punch through the Shinjuku and Shibuya glow from any open spot like a riverside or a park lawn. Fainter BlueBirds (~magnitude 3) and Starlink trains want the Tama River or the western hills away from the neon.
At 35.7°N — similar to Los Angeles and Tehran — the ISS reaches a high 90°, with four to five visible passes most weeks. In Tokyo the limiting factor is never the geometry; it's light pollution and the humid summer, not the sky.
November to February: the dry winter monsoon delivers Tokyo's clearest, most transparent nights. Spring (March–May) brings kasumi haze. The worst stretch is the June–mid-July tsuyu rainy season followed by the August–September typhoon period, when cloud and moisture dominate.
Tokyo is in the coverage zone for EARENDIL-1, the first commercial space mirror from Reflect Orbital. When operational, the steerable mirror could illuminate Tokyo during targeted passes. OrbitalSolar.ai has full pass predictions for Tokyo →
From Tokyo (35.7°N) you have access to a wide range of satellites: