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Hakodate Shi
Hakodate Shi
Hokkaido, Japan

Iōzan

Iōzan is a locality in Hokkaido, Japan, 295 m above sea level, close to the sea. The climate is classified as warm-summer humid continental (Köppen Dfb), with warm summers, cold winters and precipitation in every season.

Now9°C
Best timeJul–Sep
Population–
Local time16:24
41.97° N, 140.87° EElevation 295 mUTC+9 · Japan Standard Time
The year in Iōzanweather score
JanFebMarAprMayJunJulAugSepOctNovDec37October
October: high / low13° / 9°
Rain this month146mm
Sea this month17°
Best timeJul–Sep

Best: Jul–Sep. Warmth, sunshine and dry days, month by month.

Iōzan at a glance

Best time to visitJul–Sep

The months with the highest weather score

Warmest month22°C

Average high in August

Coolest month-7°C

Average low in January

Wettest monthDecember

116 mm of rain

Driest monthFebruary

85 mm of rain

Warmest sea21°C

August

Monuments nearby8+

within 26 km

Weather in Iōzan

Now and the next ten days. The 14 and 30-day outlooks are one click away.

14-day forecast
9°C

Rain · wind 5 km/h · humidity 88%

Today hour by hour
Today27 Oct12°6°4.6 mm
Wed28 Oct4°1°2.5 mm
Thu29 Oct9°0°15.8 mm
Fri30 Oct13°6°6.5 mm
Sat31 Oct14°4°5.8 mm
Sun1 Nov7°4°
Mon2 Nov11°5°8.5 mm
Tue3 Nov5°2°
Wed4 Nov7°-1°6.3 mm
Thu5 Nov2°-1°

When to go to Iōzan

Each month's weather score (warmth, sun, dry days) with its temperatures and rain.

Climate month by month
JanFebMarAprMayJunJulAugSepOctNovDec
Score192025292549555765372220
High-3°-3°0°5°11°16°19°22°19°13°5°0°
Low-7°-7°-4°0°6°11°15°18°15°9°1°-4°
Rain (mm)1128587108140126213278251146147116
Wet days201612101312141812141621
Sea7°4°4°6°9°14°18°21°20°17°13°10°

What's on in Iōzan

Concerts, football matches, the public holidays ahead and the town's festivals through the year.

Monuments and museums in Iōzan

All monuments

Nature around Iōzan

Nature in Japan

Wildlife in October

The birds and mammals of Japan seen most this month, compared with the rest of their year.

The sky over Iōzan

Eclipses and meteor showers

Earthquakes around Iōzan

The last 30 days within 300 km, and the record since 1950.

Earthquakes

Strongest nearby since 1950

6.7Shizunai-furukawachō 20 km ↓1982 · 125 km
6.6Atsuma 8 km ↗2018 · 118 km
6.6Shimamaki 29 km ↖1950 · 133 km
6.5Otobe 25 km ←1993 · 85 km

Towns and villages around Iōzan

Each with its own page: weather, climate and the best time to visit.

Places near Iōzan

Frequently asked questions

When is the best time to visit Iōzan?
Based on 30-year climate normals, July, August and September offer the best balance of comfortable temperatures, low rainfall and sunshine in Iōzan.
What is the hottest month in Iōzan?
August is the warmest month, with average highs of 22°C and lows of 18°C.
What is the coldest month in Iōzan?
January is the coldest month, with average highs of -3°C and lows of -7°C.
What is the rainiest month in Iōzan?
December is the wettest month with about 116 mm of precipitation on 21 wet days.
How warm is the sea near Iōzan?
The sea is warmest in August at about 21°C and coolest in February at about 4°C.