Hokkaido, Japan
Tomakomai
Tomakomai is a city in Hokkaido, Japan, close to the sea. It has a population of about 174,806. The climate is classified as warm-summer humid continental (Köppen Dfb), with warm summers, cold winters and precipitation in every season.
Now5°C
Best timeJul–Sep
Population174,806
Local time00:02
42.64° N, 141.60° EElevation 7 mUTC+9 · Japan Standard Time
Postal codes053-0000, 053-0001 …October: high / low14° / 10°
Rain this month127mm
Sea this month16°
Best timeJul–Sep
Best: Jul–Sep. Warmth, sunshine and dry days, month by month.
Tomakomai at a glance
Sunrise · sunset05:55 · 16:4310 h 48 min of daylightThe moon tonightWaxing gibbous85% · Moonrise 15:00Next holiday3 NovemberCulture DayNext eclipse21 Feb 2027Penumbral lunar eclipse
Best time to visitJul–Sep
The months with the highest weather score
Warmest month22°C
Average high in August
Coolest month-6°C
Average low in January
Wettest monthDecember
77 mm of rain
Driest monthFebruary
55 mm of rain
Warmest sea20°C
August
How Tomakomai has grown
People living in the built-up area (65 km² today), every five years since 1975; 2030 is the projection.
+23%113k in 1975 → 139k in 2025Weather in Tomakomai
Now and the next ten days. The 14 and 30-day outlooks are one click away.
5°C
Today hour by hourClear · wind 5 km/h · humidity 81%
Today23 Oct15°5°
Sat24 Oct15°8°
Sun25 Oct17°8°
Mon26 Oct13°7°
Tue27 Oct9°8°16.7 mm
Wed28 Oct9°3°2.5 mm
Thu29 Oct8°4°3.9 mm
Fri30 Oct12°5°5.8 mm
Sat31 Oct15°6°11.8 mm
When to go to Tomakomai
Each month's weather score (warmth, sun, dry days) with its temperatures and rain.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Score | 22 | 22 | 23 | 29 | 24 | 48 | 63 | 59 | 64 | 45 | 24 | 23 |
| High | -1° | -1° | 2° | 6° | 11° | 15° | 19° | 22° | 20° | 14° | 7° | 1° |
| Low | -6° | -6° | -3° | 2° | 6° | 12° | 16° | 19° | 16° | 10° | 3° | -3° |
| Rain (mm) | 66 | 55 | 70 | 96 | 136 | 116 | 194 | 252 | 198 | 127 | 105 | 77 |
| Wet days | 20 | 19 | 13 | 11 | 13 | 12 | 12 | 18 | 13 | 17 | 19 | 24 |
| Sea | 6° | 4° | 3° | 5° | 8° | 13° | 17° | 20° | 20° | 16° | 13° | 10° |
What's on in Tomakomai
Concerts, football matches, the public holidays ahead and the town's festivals through the year.
Monuments and museums in Tomakomai
More museums: ほっき貝資料館 · ミール展示館 · Tomakomai Port Museum · 苫小牧軽便鉄道4号蒸気機関車
Outdoors around Tomakomai
Hiking routes from the town, and what there is to do within 15 km: huts, viewpoints, climbing, camping, ski areas and dive sites.
サンガーデンViewpoints
0.7 km緑ヶ丘公園展望台Viewpoints
1.8 kmNidom Classic CourseGolf courses
9.5 kmTarumae Country ClubGolf courses
11 kmオートリゾート苫小牧 アルテンCamp sites
11 km美々川プライベートキャンプ場Camp sites
12 km千歳市民スキー場Ski area · 0 km of pistes · 1 lifts
18 km恵庭市民スキー場Ski area · 1 km of pistes · 1 lifts
25 km安平山 スキー場Ski area · 1 km of pistes · 1 lifts
30 kmダイナスティスキーリゾートSki area · 2 km of pistes · 3 lifts
35 kmNature around Tomakomai
Wildlife in October
The birds and mammals of Japan seen most this month, compared with the rest of their year.
The sky over Tomakomai
Earthquakes around Tomakomai
The last 30 days within 300 km, and the record since 1950.
Last 30 days8magnitude 2.5+ within 300 kmSince 1950285magnitude 5+ within 150 kmSignificant earthquakes on record53within 300 km
Strongest nearby since 1950
6.9Sarabetsu 15 km ↖2013 · 123 km
6.8Urakawa 12 km ↙1968 · 111 km
6.8Sarabetsu 29 km ←1987 · 102 km
6.7Urakawa 20 km ↓2016 · 122 km
Tsunamis · Tomakomai
0.3 m8 December 2025earthquake0.2 m15 January 2022volcanic eruption0.2 m21 November 2016earthquake2.3 m11 March 2011earthquake2.3 m11 March 2011earthquake2.6 m11 March 2011earthquake2.7 m11 March 2011earthquake0.1 m9 March 2011earthquake1 m25 September 2003earthquake0.1 m1 November 1989earthquake0.1 m7 May 1986earthquake0.1 m3 March 1985earthquake0.1 m26 May 1983earthquake0.2 m21 March 1982earthquake0.1 m12 June 1978earthquake0.2 m17 June 1973earthquake0.1 m24 June 1973earthquake0.1 m2 August 1971earthquake0.1 m11 August 1969earthquake0.8 m16 May 1968earthquake0.2 m4 February 1965earthquake0.3 m28 March 1964earthquake and landslide0.1 m12 October 1963earthquake0.4 m13 October 1963earthquake–23 April 1962earthquake2.1 m22 May 1960earthquake0.1 m6 November 1958earthquake
Universities and research institutes
National Institute of Technology, Tomakomai CollegeUniversity or college · founded 1964
苫小牧駒澤大学University or college · founded 1965
Towns and villages around Tomakomai
Each with its own page: weather, climate and the best time to visit.
Tomakomai from above
Around Tomakomai31 places to see, do and reach nearby
Lake UtonaiNature11 kmTomakomai RiverNature3.2 kmAbira RiverNature11 kmYūfutsu RiverNature11 kmBenten NumaNature13 kmAtsuma RiverNature18 kmMount HorohoroMountain38 kmMount EniwaMountain31 kmIzari-dakeMountain36 kmMount TokushunbetsuMountain39 kmMount SoranumaMountain38 kmMount FuppushiMountain22 km千歳市民スキー場Ski area18 km恵庭市民スキー場Ski area25 km安平山 スキー場Ski area30 kmダイナスティスキーリゾートSki area35 kmTomakomai City MuseumMuseum0.8 kmTomakomai Science MuseumMuseum0.6 kmLake Utonai Wildlife Conservation CenterMuseum10 kmYubutsu Material HallMuseum11 kmStationStation0.6 kmStationStation2.8 kmStationStation4.9 kmTomakomai · ferry portFerry port2.4 kmTomakomai · ferry portFerry port2.6 kmChitosePlace21 kmShiraoiPlace23 kmAtsumaPlace20 kmSapporoPlace52 kmEbetsuPlace53 kmKitahiroshimaPlace38 km
Postal codes
053-0000053-0001053-0002053-0003053-0004053-0005053-0006053-0007053-0011053-0012053-0013053-0017053-0018053-0021053-0022053-0031053-0032053-0034053-0043053-0044053-0045
Getting to Tomakomai
New Chitose AirportCTS
17 kmSapporo Okadama AirportOKD
56 kmHakodate AirportHKD
116 km苫小牧Railway station
0.6 km青葉Railway station
2.8 km糸井Railway station
4.9 km苫小牧西港大洗カーフェリーポート
2.4 km苫小牧西港フェリーターミナル仙台港
2.6 kmPlaces near Tomakomai
Places with a climate like Tomakomai
Matched month by month on temperature, rain and sunshine.
Frequently asked questions
When is the best time to visit Tomakomai?
Based on 30-year climate normals, July, August and September offer the best balance of comfortable temperatures, low rainfall and sunshine in Tomakomai.
What is the hottest month in Tomakomai?
August is the warmest month, with average highs of 22°C and lows of 19°C.
What is the coldest month in Tomakomai?
January is the coldest month, with average highs of -1°C and lows of -6°C.
What is the rainiest month in Tomakomai?
December is the wettest month with about 77 mm of precipitation on 24 wet days.
How warm is the sea near Tomakomai?
The sea is warmest in August at about 20°C and coolest in March at about 3°C.
What is the postal code of Tomakomai?
Tomakomai has 21 postal codes: 053-0000, 053-0001, 053-0002, 053-0003, 053-0004, 053-0005, 053-0006, 053-0007, 053-0011, 053-0012, 053-0013, 053-0017 ….