2-Day Weather

Here you can see a detailed look at the forecast for the next 48 hours. Note that the base for this is our Meteogram product, which shows a good average forecast for Koya (Nagano, Japan).

However, you can also look at our compact prediction based on any other model that forecasts for your chosen location. The following models are available for Koya:

ECMWF 6z/18z (3 days), ECMWF IFS HRES (5 days), GFS (5 days), GEM (5 days), ACCESS-G (5 days), ICON (5 days), NORWAY (5 days), UKMO (5 days)

14 day weather forecast

This plot displays the 14 day temperature forecast for your selected location, Koya.

The red numbers show the expected high temperature for a given day, while the blue numbers show the expected low temperature. Because forecast uncertainty increases with time, we also display the range of possible high/low temperature outcomes, shown as the shaded red/blue regions. The actual high/low temp could fall anywhere in that shaded region, and the larger the shaded regions are, the higher the forecast uncertainty is.

Koya weather

Current weather - Here we've put together a glance at all the most important information about the current weather in Koya (Nagano, Japan). You can see with the radar HD if precipitation is falling at the moment, or headed towards Koya soon. You can also see where there are thunderstorms currently ongoing, as well as where thunderstorms have occurred in recent weeks and months with our lightning analysis tool. Our HD satellite images of Koya will show you whether there’s sunshine currently in the area, or if clouds are making for a more gloomy day. Finally, current observations will tell you what current temperatures look like around Koya at the moment, as well as if it's humid and/or windy.

Forecast for the next few days - The weather forecast for Koya is available in several different versions, all clearly and simply displayed here on the Weather Koya page. For the short term, we have data based on a single weather model that is known to deliver the best forecast for Koya. For the longer term, we have forecasts for the next two weeks based on an analysis of many different possible forecast outcomes that will give you a sense of not just what's most likely, but how the forecast could change in future updates as we get closer to any given date. If the range of possible outcomes is narrow, you can have high confidence in the forecast. If the range is wide, you know there’s more uncertainty, and to not give too much credence to any one possible forecast outcome. We also have other products such as Meteograms and Forecast XL elsewhere on our site to give you additional options for figuring out the forecast for Koya.

Weather Koya

Weather in other places in the region Nagano

Neighboring places around Koya
- Ōhinata, Hirogawara, Shiraiwa, Kawadaira, Shimoarai, Kitaaiki Mura, Nakao, Kuroda, Nigamizu, Kuryūgawa

Cities, towns, villages
- Achi-mura, Agematsu-machi, Anan-chō, Aoki Mura, Asahi-mura, Chikuhoku Mura, Chikuma, Chino, Fujimi, Fujimi-machi, Hakuba, Hakuba Mura, Hara-mura, Hiraya, Hiraya-mura, Hotaka, Iida, Iijima, Iijima-machi, Iiyama, Iizuna Machi, Ikeda, Ikeda Machi, Ikusaka Mura, Ina, Kamimaruko, Karuizawa Machi, Kawakami Mura, Kijimadaira Mura, Kiso-machi, Kiso-mura, Kitaaiki Mura, Komoro, Koumi Machi, Matsukawa Mura, Matsukawa-machi, Matsumoto, Minamiaiki Mura, Minamimaki-mura, Minamiminowa-mura, Minowa-machi, Miyada, Miyada-mura, Miyota, Miyota-machi, Nagano, Nagawa, Nagawa Machi, Nagiso, Nagiso-machi, Nakagawa-mura, Nakano, Neba-mura, Nozawa-onsen Mura, Obuse Machi, Ogawa Mura, Okaya, Omi, Omi Mura, Otari Mura, Sakae Mura, Sakaki, Sakaki Machi, Sakata, Saku, Sakuho Machi, Shimojō-mura, Shimonogō, Shimosuwa Machi, Shinano Machi, Shiojiri, Shizuma, Suhara, Suwa, Suzaka, Takafu, Takagi-mura, Takamori-machi, Takanomachi, Takasawa, Takayama Mura, Tanaka, Tateshina Machi, Tatsuno, Tatsuno-machi, Tenryū-mura, Togura, Tokimata, Tokiwa, Tomikura, Tomono, Toyoda, Toyonomachi-toyono, Toyooka-mura, Toyosato, Toyoshina, Tsukama, Tsumago, Ueda, Uminokuchi, Urugi-mura, Wadamachi, Yabuhara, Yamagata Mura, Yamanouchi Machi, Yamasaki, Yashiro, Yasuoka-mura, Yawata, Yokokura, Yoriaido, Yoshida, Yotsuya, Yuba, Ōkuwa-mura, Ōmachi, Ōshika-mura, Ōtaki, Ōtaki-mura, Ōya

Mountains and hills
- Dai-tenjō-dake, Jiiga-take, Johnen-dake, Kiso Komaga-take, Kita-Hotaka-dake, Kita-dake, Kotakesawa-yama, Mae-hotaka-dake, Minami-komaga-take, Mount Aka, Mount Asama, Mount Hotakadake, Mount Jōnen, Mount Neishi, Mount Ontake, Mount Sannosawa, Mount Senjō, Mount Shirouma, Mount Tateshina, Mount Tengu, Mount Yoko, Nishi-hotaka-dake, Tsubakuro Dake, Yariga Take, Yariga-take

Lakes
- Hokuryū Ko, Lake Nojiri, Lake Suwa, Matsubara Ko, Shirakaba Ko