| Event date | Event name | Venue | |
| April | First Sunday | Odori Nenbutsu (Chanting prayers while dancing) | Saku City |
| Third Saturday and Sunday | Saku City Kyoho Taikai (Power Walk Contest) | Saku City | |
| 29 (Showa Day) | Arafune Fudoson Reisai (Annual Festival) | Saku City | |
| 29 (Showa Day) | Ne Shrine Shikisanbaso (Traditional Prelude) | Saku City | |
| 29 (Showa Day) | Free distribution/spot sales of greening trees | Karuizawa Town | |
| May | 3 – 5 | Saku Balloon Festival | Saku City |
| 3 (Constitution Memorial Day) | Mountain stream fishing gathering | Karuizawa Town | |
| 3 (Constitution Memorial Day) | Bird watching gathering | Karuizawa Town | |
| 3 (Constitution Memorial Day) | Horse riding in spring | Karuizawa Town | |
| 3 – 5 | Saku Koi Matsuri (Carp Festival) | Saku City | |
| 6 | Asama Shakunage Koen Matsuri (Rhododendron Park Festival) | Miyota Town | |
| 10 | Eki Kara (From-Station) Hiking | Karuizawa Town | |
| 10 | Fureai Hiroba (Park) | Miyota Town | |
| 11 | Donguri Gaeshi (Arbor Day) | Karuizawa Town | |
| 15 | Kumano Kotai Shrine Haru no Saiten (Spring Festival) | Karuizawa Town | |
| 17/24 | Mebuki no Karuizawa wo Aruko (Let’s walk Karuizawa in sprouting season) | Karuizawa Town | |
| Third Sunday | Usuda Komansai (Full Grain Festival) | Saku City | |
| Late in the month | Hana to Midori to Dobutsu (Flowers, Verdure and Animals) Fureai Festa | Saku City | |
| June | |||
| July | 4 | Utsukushigahara Trail Run & Walk in Nagawa | Nagawa Town |
| Saturday and Sunday in early July | Nakagomi Tanabata Festival | Saku City | |
| Saturday and Sunday in mid-July | Iwamurada Gion Festival | Saku City | |
| Saturday and Sunday in late July | Nozawa Gion Festival | Saku City | |
| 25 | Ryujin Festival | Miyota Town | |
| August | 1 | Tsugane-ji Temple Ennichi (Festival) Yo-kannon | Tateshina Town |
| First Saturday | Usuda Yoiyasa Summer Festival | Saku City | |
| First Saturday | Tateshina Endeko Town Citizen Festival | Tateshina Town | |
| 14 | Asashina Dondon Matsuri (Asashina Dondon Festival)/Noryo Hanabi Taikai (Summer Night Fireworks Festival) | Saku City | |
| 14 | Wada-juku Shukuba Matsuri (Wada-juku Festival) | Nagawa Town | |
| 15 | Sakaki Matsuri known as an eccentric Shinshu festival | Saku City | |
| 15 | Saku Chikuma River Fireworks Festival | Saku City | |
| 16 | Otai-juku Festival | Miyota Town | |
| September | 5 – 6 | Whiskey & Beer Camp in Nagawa Town | Nagawa Town |
| Early in the month | Oyamajishi Festival | Nagawa Town | |
| Early in the month | Saku City Mochizuki Power Walk Contest | Saku City | |
| Early in the month | Saku Kogen Cosmos Festival | Saku City | |
| Mid-month | Ofuna Matsuri | Saku City | |
| Mid-month Late in the month | Bimi Tateshina Niku Matsuri (Delicious Meat Festival in Tateshina) | Tateshina Town | |
| Final Sunday in September | Yuhara Shrine Shikisanba (Traditional Prelude) | Saku City | |
| 29 | Soba Harvest Experience | Karuizawa Town | |
| October | 12 | Oiwake Aki no Mikakuichi (Autumn Food Market in Oiwake) | Karuizawa Town |
| Second Sunday | Nakasendo Shionada-juku Shukuba Matsuri (Nakasendo Shionada-juku Festival) | Saku City | |
| 15 | Kumano Kotai Shrine Aki no Saiten (Autumn Festival) | Karuizawa Town | |
| 18 | Nakasendo Walking in Tateshina | Tateshina Town | |
| 19 | Holiday Walk in Karuizawa | Karuizawa Town | |
| Final Sunday in September | Hiraoyama Momiji Matsuri (Mt. Hirao Autumn Foliage Festival) | Saku City | |
| Late October - Early November | Michi no Eki Matsuri (Roadside Station Festival)/Shoko-sai (Commerce and Industry Festival) | Saku City | |
| Late in the month | Saku City Half-marathon | Saku City | |
| Undecided | Eki Kara (From-Station) Hiking | Karuizawa Town | |
| Undecided | Let’s Walk with Tour Guide | Karuizawa Town | |
| Undecided | Halloween in Karuizawa | Karuizawa Town | |
| Undecided | Sawayaka Bazaar | Karuizawa Town | |
| November | 3 | Kusa Keiba Taikai (Local horse race) at Mochizuki Koma no Sato (Village of Horses) | Saku City |
| 3 | Outdoor Donguri (Acorn) Experience | Karuizawa Town | |
| 3 | Karuizawa Shin-soba Matsuri (New Soba Crop Festival)/Soba Uchi Jiman Taikai (Soba Making Contest) | Karuizawa Town (Charity to support earthquake disaster reconstruction) | |
| Early in the month | Nakasendo Wada-juku Shin Soba Matsuri (New Soba Crop Festival) | Nagawa Town | |
| Second Sunday | Tokanya (Autumn Harvest Festival) | Saku City | |
| Undecided | Shoko-sai (Commerce and Industry Festival) | Tateshina Town | |
| December | |||
| January | 1 | New Year’s Day Citizen Marathon | Saku City |
| 3 | Uehara Torioi Matsuri (Uehara Bird Chasing Festival) | Saku City | |
| 3 | Kasuga Hongo Dosojin Festival | Saku City | |
| 6 | Shinkai Sansha Shrine Otaue Matsuri (Rice-planting Festival) | Saku City | |
| 14 – 15 | Otaya Festival | Nagawa Town | |
| Late in the month | New Soba Crop & Galette Festival | Tateshina Town | |
| February | 11 | Saku City (Hanazura Inari Shrine) | |
| 20 | Kan no Mizu (Coldest period in the year) | Miyota Town | |
