Right now, from the dark fields at the foot of Mt. Fuji, one of the best meteor showers of the year is arriving. The Perseids peaked around 11:00 JST on August 13, 2026 — daytime here — so the best nights fall on either side: last night (12–13 Aug), and, still to come, tonight — the night of the 13th into the predawn of the 14th, with rates only a little below peak. Good viewing continues to around August 15. Lunar conditions are the best possible: the new moon falls on August 13, so no moonlight will wash the sky out — weather and light pollution are the only limits. Conditions this good won’t line up again until 2029, so this is the year to make the effort. I shoot the night sky from a handful of low-light spots near my home, and this is the guide I wish I’d had when I started: when Japan’s meteor showers actually happen, how to watch them without any equipment, and where to go.
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Next up: the Geminids, around December 14
The Perseids are done for 2026. The next of the three great showers is the Geminids, typically peaking around December 14 - often the richest display of the year, and early coverage expects favourable conditions in 2026. 121 days to go; confirm timing on NAOJ nearer the date.
Sky forecast today (JMA) - Fuji Five Lakes (Yamanashi): Cloudy / Eastern Shizuoka: Cloudy (checked Aug 15, 04:33 JST)
The Perseids 2026: why this year is special
The Perseid meteor shower (ペルセウス座流星群) is one of the three most reliable showers of the year. According to the National Astronomical Observatory of Japan (NAOJ), the 2026 peak comes at around 11:00 on August 13 Japan time. That’s daylight here, so the real show is the two nights around it — the night of August 12 into the predawn of the 13th was the first choice, and tonight — the 13th into the predawn of the 14th — is a strong second, with the sweet spot around 3 a.m. and rates only a little below peak. One more reason it was worth the effort: the next Perseids with conditions this good come in 2029.
- Peak: around 11:00 JST, August 13, 2026 (NAOJ) — watch the predawn hours before and after.
- Moon: new moon at 02:37 JST on August 13 (NAOJ) — the same date as the peak, so effectively no moonlight all night.
- How many: about 35 meteors per hour from a dark site, peaking around the 3 a.m. hour on August 13 (NAOJ figures, as reported for Tokyo), and about 30 per hour toward dawn on the 14th. In a bright suburb you’ll see far fewer.
- Speed: the particles hit the atmosphere at about 59 km per second (American Meteor Society), which is why Perseids are fast and often leave trails.
- Where to look: the radiant is in the constellation Perseus, low in the northeast after dark — but you don’t stare at it. Meteors streak across the whole sky.
Tonight’s outlook: can you see it in your prefecture?
Here’s the catch for 2026: the moon is perfect, but the weather is not the same everywhere. Humid Pacific-side air tied to a typhoon south of the country has clouded much of eastern and western Japan for the peak nights, while the Japan Sea side and Kyushu keep the clear skies. The table below is the prefecture-by-prefecture read for tonight — the second window, August 13 into the predawn of the 14th — based on the “star index” (星空指数) from tenki.jp and JMA cloud forecasts, updated on the evening of August 13. The map has flipped since the first window: Kansai, Setouchi, Kyushu, Hokuriku and the northern Japan Sea coast are wide open tonight, while the typhoon’s leftover cloud band parks squarely over Kanto, Fukushima and the Fuji area. Conditions shift by the hour, so recheck your local star index before you head out. Treat it as odds, not a promise: a data eSIM lets you recheck the cloud radar from the road (affiliate link) before you commit to a drive. And don’t give up too easily on a cloudy forecast — the Perseids throw so many meteors that a single break in the cloud can still deliver a few, and cloud cover is often more localised than a forecast map suggests. For everything else lighting up the country this month, see my Japan in August 2026 calendar.
| Prefecture | Tonight | Where it’s clearest / notes |
|---|---|---|
| Hokkaido | △ | Patchy – inland breaks possible, coasts cloudier (index 30) |
| Aomori | ◎ | Wide open – one of tonight’s best (index 100) |
| Iwate | △ | Mostly cloudy; brief gaps possible (index 20) |
| Miyagi | ✕ | Mostly cloudy on the Pacific side (index 10) |
| Akita | ◎ | Clear most of the night (index 100) |
| Yamagata | ✕ | Overcast (index 10) |
| Fukushima | ✕ | Overcast – the typhoon’s leftover cloud band sits here (index 0) |
| Ibaraki | ✕ | Overcast (index 10) |
| Tochigi | ✕ | Overcast (index 0) |
| Gunma | ✕ | Overcast (index 0) |
| Saitama | ✕ | Overcast (index 0) |
| Chiba | ✕ | Overcast (index 0) |
| Tokyo | ✕ | Overcast on the mainland – the remnant cloud band parks over Kanto tonight (index 0) |
| Kanagawa | ✕ | Overcast – same Kanto cloud shield (index 0) |
| Niigata | ◎ | Wide open along the whole coast (index 100) |
| Toyama | ◎ | Wide open (index 100) |
| Ishikawa | ◎ | Wide open – Noto ideal (index 100) |
| Fukui | ◎ | Wide open (index 100) |
| Yamanashi | ✕ | Poor tonight – cloud lingering over the Fuji Five Lakes; skip the drive (index 10) |
| Nagano | △ | Mostly cloudy; high-basin breaks at best (index 20) |
| Gifu | ○ | Broken cloud – usable windows (index 50) |
| Shizuoka | △ | Partly cloudy – western coast has the better odds (index 40) |
| Aichi | ○ | Broken cloud – usable windows (index 50) |
| Mie | ✕ | Overcast along the coast (index 0) |
| Shiga | ◎ | Clear most of the night (index 90) |
| Kyoto | ◎ | Nearly clear – Miyama side best (index 90) |
| Osaka | ◎ | Wide open – a rare perfect sky for the city (index 100) |
| Hyogo | ◎ | Wide open – head for the dark north (Tamba, Sasayama) (index 100) |
| Nara | ◎ | Wide open – Soni Highland conditions excellent (index 100) |
| Wakayama | ◎ | Clear most of the night (index 90) |
| Tottori | ◎ | Wide open – Daisen area excellent (index 100) |
| Shimane | ◎ | Clear most of the night (index 90) |
| Okayama | ◎ | Clear most of the night (index 80) |
| Hiroshima | ◎ | Clear most of the night (index 80) |
| Yamaguchi | △ | Mostly cloudy – the odd break (index 20) |
| Tokushima | ◎ | Clear most of the night (index 100) |
| Kagawa | ◎ | Clear most of the night (index 80) |
| Ehime | ◎ | Clear most of the night (index 90) |
| Kochi | ◎ | Wide open – Shimanto/Muroto superb (index 100) |
| Fukuoka | ◎ | Clear most of the night (index 80) |
| Saga | ◎ | Clear most of the night (index 90) |
| Nagasaki | ◎ | Clear most of the night (index 80) |
| Kumamoto | ○ | Broken cloud – usable windows (index 60) |
| Oita | ○ | Broken cloud – usable windows (index 70) |
| Miyazaki | ◎ | Wide open (index 100) |
| Kagoshima | ◎ | Wide open – Osumi and Satsuma both clear (index 100) |
| Okinawa | ◎ | Nearly clear – watch for passing showers (index 90) |
◎ clear, go for it · ○ mostly clear · △ cloudy with gaps · ✕ clouded or rained out. Forecast as of the evening of 12 August 2026, from tenki.jp star-index and JMA overnight cloud forecasts — always recheck your own local sky before heading out, and remember conditions can differ within a prefecture (coast vs. inland, valley vs. ridge).
Japan’s three major meteor showers
Meteor showers are predictable. Earth crosses the same streams of comet and asteroid debris at the same point in its orbit every year, so the peak dates barely move. Japan’s “three great showers” (三大流星群) are the ones worth planning around:
| Shower | Peak (typical) | Notes |
|---|---|---|
| Quadrantids (しぶんぎ座) | around January 4 | Sharp, short peak; numbers vary year to year. |
| Perseids (ペルセウス座) | around August 13 | Warm nights, very reliable — the easiest to enjoy. |
| Geminids (ふたご座) | around December 14 | Often the richest of all, but bitterly cold — and 2026 is shaping up well: early coverage expects favourable conditions this December too. |
The single thing that makes or breaks a year is the moon. A shower at new moon (like the Perseids in 2026) can be spectacular; the same shower under a full moon can be almost invisible. That’s why 2026 is worth going out for.
How to watch — no telescope needed
- Use your eyes, not a telescope. Meteors cross huge stretches of sky in an instant. Binoculars and telescopes actually make it harder. Just lie back and take in as much sky as you can.
- Let your eyes adapt. Give it 20–30 minutes in the dark before you judge how good it is. One glance at a phone screen resets that.
- Look up, not only at the radiant. Meteors appear all over the sky; facing straight up (or toward the darkest part) works fine.
- Dress warmer than you think. Even in August, the highlands around Mt. Fuji get cold at night. A ground mat and a reclining chair beat standing and craning your neck (affiliate link).
- Use a red light for your feet and gear so you don’t ruin your night vision — a head-torch with a red mode is ideal (affiliate). And check the cloud forecast, because clear sky matters more than anything.
Where I go: dark spots at the foot of Mt. Fuji
You don’t need a famous observatory. You need a safe, open place with little artificial light and a clear horizon. These are three spots I go back to around Mt. Fuji — open places away from dense town lighting, all looking out toward the mountain. Local lights, traffic and cloud still matter, so treat them as good, not perfect. If you’re timing a Fuji trip around a clear night, my Mt. Fuji visibility forecast and best time to see Mt. Fuji guides pair naturally with this one.
Mizugatsuka Park (水ヶ塚公園)
On Mt. Fuji’s southern flank at about 1,450 m, Mizugatsuka Park is known for its big parking area and its head-on view of the mountain. The altitude gets you above a lot of the haze, and the open ground makes it easy to see a wide sweep of sky.
Fuji Susono “Victory Road” (富士裾野ビクトリーロード)
A long, straight road in Susono that runs almost directly at Mt. Fuji — a local favorite for framing the mountain, with darker sky once you’re clear of the town. It is a working road: use only legal parking areas, never stop or set up on the roadway, and watch for traffic in the dark.
Hirano-no-hama, Lake Yamanaka (平野の浜)
The eastern shore of Lake Yamanaka, in the Hirano district. Standing at the water with Mt. Fuji across the lake, you get an open sky and a reflection when the water is still.
Japan’s famous dark-sky places
If you’re willing to travel for the darkest skies in the country, a few places are recognized for exactly that:
- Achi Village, Nagano (阿智村) — ranked among Japan’s best locations for star observation in the Ministry of the Environment’s FY2006 star-watching survey, a result the village has built its stargazing tourism on. It runs organized stargazing nights in the mountains, and makes an easy add-on to a Lake Suwa and Nagano trip.
- Iriomote-Ishigaki National Park, Okinawa — Japan’s first internationally certified Dark Sky Place (2018). Far south, with skies most of the country can’t match.
- Kozushima Island, Tokyo (神津島) — an island in the Izu chain certified as a Dark Sky Place (2020), with a whole-island lighting policy to protect the night.
- Bisei, Okayama (美星町) — literally “beautiful star town,” certified as a Dark Sky Place (2021) and long protected by a local light-pollution ordinance.
Each of these is a trip in itself rather than a quick night out, so if a shower peak lands on a new moon it’s worth basing yourself nearby — places to stay near the dark-sky areas book up fast around the August and December peaks (affiliate link).
FAQ
When exactly should I go out for the 2026 Perseids?
The peak is around 11:00 on August 13 (JST), which is daytime in Japan. Watch the dark hours instead — first choice is the night of August 12 into the early morning of the 13th (closest to the peak), second the night of the 13th into the 14th. The hours after midnight are best — around Tokyo the rate is expected to top out in the 3 a.m. hour on the 13th.
Do I need a telescope or binoculars?
No — they make it harder. Meteors flash across large areas of sky, so your naked eyes are the right tool. Just find a dark, safe, open spot and look up.
Which direction do I face?
The radiant is in Perseus (low in the northeast after dark), but meteors appear all over the sky. Facing straight up, or toward the darkest part of the sky, works well.
What ruins a meteor shower?
Moonlight, clouds, and city lights. 2026’s Perseids fall on a new moon, so the main things to manage are cloud cover and light pollution — which is why a dark spot away from town matters.
Which parts of Japan have the best chance on the 2026 Perseid peak nights?
For the night of 12–13 August, the clearest skies are forecast on the Japan Sea side (Akita, Niigata, Toyama, Nagano, Shimane and Yamaguchi) and in northern Kyushu (Saga, Nagasaki, Kagoshima), because humid Pacific-side air has clouded much of eastern and western Japan. In Kanto, the Chiba coast is the best bet, while Tokyo, most of Kansai (Osaka, Kyoto) and Okinawa’s main island are largely clouded or rained out. See the prefecture-by-prefecture table above, and always recheck your local forecast — cloud cover can shift within hours.
Sources & last updated
Last updated: 12 August 2026 (added the prefecture-by-prefecture outlook for the peak nights). Sources: National Astronomical Observatory of Japan (NAOJ) — “Hoshizora Joho” August 2026 Perseids page (peak time and hourly rates) and the 2026 almanac’s moon-phase tables (new moon 02:37 JST, Aug 13); American Meteor Society meteor shower calendar (Perseid velocity 59 km/s); JST Science Portal newsflash, August 7, 2026 (Tokyo 3 a.m. peak rate, next comparable conditions in 2029, Geminids outlook); tenki.jp (Japan Weather Association) star-index (星空指数) and the Japan Meteorological Agency overnight cloud forecasts, as issued on the evening of 12 August 2026, for the prefecture outlook table; DarkSky International certification pages for Iriomote-Ishigaki (2018), Kozushima (2020) and Bisei (2021); Ministry of the Environment star-watching survey (Achi). The prefecture outlook is a short-range forecast and will change — check your local sky before you travel. All night-sky photographs are my own, taken near Mt. Fuji.
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