WEATHERblaze

Hokkaidō Historical Weather Data & Climate

Historical Climate Data for 59 Cities
•
1981–2025
•
Japan
⛅

Quick Climate Facts

(1981 – 2025)
Hottest City
🔥
Shimizu
Jul High 24.1°C
Coldest City
❄️
Minamishibetsuchō
Jan Low -14.3°C
Wettest City
🌧
Urakawa
1332 mm/yr
Driest City
🏜️
Honmachi
919 mm/yr
Hottest Month
🌡
August
Avg 20.3°C
High 23.9°C
Coldest Month
🧊
February
Avg -6.4°C
Low -9.6°C
Cities With Data
🏙️
59
cities in Hokkaidō
Data Coverage
📅
45 yrs
1981 – 2025

Hokkaidō Climate Overview

Hokkaidō has a temperate climate with warm summers and cold winters.

Hokkaidō has an average annual temperature of 6.5°C across all 59 cities, with approximately 1133 mm of annual precipitation and average humidity of 86%. Temperatures peak in August and drop to their lowest in February, while rainfall is highest during summer months.

The warmest city is Shimizu with average July highs of 24.1°C, while Minamishibetsuchō is the coldest with average January lows of -14.3°C. Humidity remains high throughout the year, especially during winter months, creating cold and damp conditions. These seasonal patterns make summer pleasant for travel, while winters can bring frost and occasional snowfall.

🏙️ Cities in Hokkaidō — Weather History

📊 Hokkaidō Monthly Climate Data

Monthly Climate Data
Month🌤️Avg HighAvg TempAvg LowRecord HighRecord LowHumid %Rain (mm)Wind (m/s)Solar (kWh/m²)
January❄️-3.5°C-6.5°C-9.4°C9.4°C-27.1°C91%753.41.50
February❄️-3.1°C-6.4°C-9.6°C10.8°C-26.9°C89%583.52.30
March❄️0.7°C-2.6°C-5.8°C15.4°C-26.8°C86%603.43.50
April🌤️7.9°C4.0°C0.1°C24.2°C-16.2°C83%642.94.50
May🌤️14.0°C9.7°C5.4°C31.8°C-6.1°C82%802.45.00
June⛅18.5°C14.4°C10.3°C33.3°C-0.8°C84%811.95.10
July⛅22.6°C18.8°C15.0°C35.0°C4.1°C86%1101.84.70
August🌧️23.9°C20.3°C16.8°C35.4°C5.8°C85%1571.94.30
September⛅20.0°C16.4°C12.9°C32.2°C0.7°C83%1382.23.70
October⛅13.5°C9.9°C6.3°C25.2°C-5.1°C82%1102.62.70
November⛅5.9°C2.9°C-0.1°C19.6°C-16.4°C85%1053.01.60
December⛅-0.9°C-3.5°C-6.2°C14.6°C-22.9°C89%943.31.20

Showing average climate conditions across 45 years (1981–2025) · averaged across all 59 cities in Hokkaidō

🌦 Weather in Hokkaidō Across Seasons

❄️ Winter in Hokkaidō

February is Hokkaidō's coldest month, with average lows reaching -9.6°C.
🌡️December to February (avg) · -8.4°C – -2.5°C

🧥 Expect frosty nights and below-freezing temperatures during this Cold Winter period.

☀️ Summer in Hokkaidō

Summer temperatures in Hokkaidō peak in August, climbing to 23.9°C.
🌡️July to September (avg) · 14.9°C – 22.2°C

🌤️ Conditions are ideal for outdoor activities throughout the day in this Mild Summer.

🌧️ Rainy Season in Hokkaidō

Hokkaidō sees its highest rainfall in August, receiving approximately 157 mm of precipitation.
🌧️July to September (avg) ·  up to 157 mm

☔ Heavy Rainfall expected — carry rain gear and plan outdoor activities around these months.

📈 Hokkaidō Monthly Averages

🌡️ Temperature Patterns

Region-wide monthly averages across 59 cities · 1981–2025 · °C

🌡️ Hokkaidō Monthly Temperature Guide

August is the hottest month in Hokkaidō, with average highs reaching 23.9°C, while February is the coldest with lows dropping to -9.6°C.

Temperatures rise steadily from spring, peak in August, and gradually decline through autumn into winter.

These seasonal patterns make summer pleasant for travel, while winters can bring frost and occasional snowfall.

🌧️ Rainfall Distribution

Region-wide monthly rainfall · 1981–2025 · mm/month

🌧 Rainfall & Humidity in Hokkaidō

Hokkaidō receives its highest rainfall in August, while humidity peaks during winter months.
🌧️ Wettest: August — 157 mm☀️ Driest: February — 58 mm

💧 Humidity peaks at 91% in January · annual avg 86%

💨 Humidity & Wind Speed

Monthly averages · 1981–2025

🌍 Climate Summary

Avg Temp: 6.5°CAvg Rainfall: 1133 mmAvg Humidity: 86%Period: 1981–2025

Across 45 years, Hokkaidō's temperature has remained relatively stable over the past decade. 2025 was the warmest year overall and 1986 the coolest.

📅 Hokkaidō Yearly Climate Trends

The warmest year on record was 2025 (avg: 8.0°C), while the coldest year was 1986 (avg: 5.3°C).

📊 Key Climate Trends

  • 🌡️ Hokkaidō's temperature has remained relatively stable over the past decade
  • 📈 Minimum temperatures show a slight warming trend in recent years
  • 🌧️ Rainfall has increased noticeably in recent years compared to earlier periods

🌡️ Annual Temperature Trend

View Range:

Averaged across all 59 cities in Hokkaidō · Last 30 years · °C

Hokkaidō's temperature has remained relatively stable over the past decade. The region-wide average sits at 6.5°C with annual rainfall averaging 1133 mm.

🌧️ Annual Precipitation

View Range:

Averaged across all 59 cities in Hokkaidō · Last 30 years · mm/year

Annual rainfall in Hokkaidō shows noticeable variation. Rainfall has increased noticeably in recent years compared to earlier periods.
📅 Yearly Climate Data Overview

🔥 hottest  ·  ❄️ coldest  ·  🌧️ wettest

ℹ️ Values are averages across all 59 cities in Hokkaidō for each year.

YearAvg HighAvg TempAvg LowHottest DayColdest DayRainfall (mm)Avg HumidityAvg Wind
2025 🌧️
11.3°C8.0°C4.6°C34.6°C-18.8°C154987%2.7 m/s
2024
11.2°C7.7°C4.1°C34.3°C-22.6°C121386%2.6 m/s
2023 🔥
11.4°C8.0°C4.5°C34.3°C-25.6°C126987%2.6 m/s
2022
10.6°C7.2°C3.7°C30.7°C-21.2°C132386%2.6 m/s
2021
10.8°C7.2°C3.6°C34.7°C-23.2°C128386%2.8 m/s
2020
10.5°C7.1°C3.6°C34.0°C-26.9°C108285%2.6 m/s
2019
10.5°C6.8°C3.1°C35.1°C-22.7°C100485%2.7 m/s
2018
10.0°C6.6°C3.2°C32.1°C-22.7°C139587%2.6 m/s
2017
9.7°C6.1°C2.6°C32.1°C-23.9°C115686%2.6 m/s
2016
9.6°C6.2°C2.8°C30.4°C-21.9°C143686%2.8 m/s

Showing 1 to 10 of 45 years

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❓ Frequently Asked Questions

What is the hottest city in Hokkaidō?▼
Shimizu is the hottest city in Hokkaidō with an average July high of 24.1°C based on 45 years of data. View Shimizu weather history →
What is the coldest city in Hokkaidō?▼
Minamishibetsuchō is the coldest city with average January lows of -14.3°C. View Minamishibetsuchō weather history →
Which city in Hokkaidō gets the most rain?▼
Urakawa is the wettest city in Hokkaidō with approximately 1332 mm of annual precipitation on average.
What is the warmest month in Hokkaidō?▼
August is the warmest month in Hokkaidō, with region-wide average highs of 23.9°C and average lows of 16.8°C.
What is the coldest month in Hokkaidō?▼
February is the coldest month in Hokkaidō with average lows of -9.6°C and average highs of -3.1°C.
What is the rainiest month in Hokkaidō?▼
August is the rainiest month in Hokkaidō with approximately 157 mm on average, while February is the driest with 58 mm.
How many cities in Hokkaidō have weather data?▼
WeatherBlaze has historical weather data for 59 cities in Hokkaidō, covering 45 years of climate records from 1981 to 2025.
Where does this climate data come from?▼
All data is sourced from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis data. It includes monthly temperature, precipitation, humidity, wind speed, and solar radiation.

📡 Data Source

All weather data is sourced from NASA POWER (Prediction of Worldwide Energy Resources), a NASA project providing solar and meteorological data for renewable energy, building efficiency, and agricultural research.

Parameters included:
  • Temperature (Min, Max)
  • Precipitation
  • Relative Humidity
  • Wind Speed
  • Solar Radiation
Data specifications:
  • Resolution: Monthly
  • Spatial: 0.5° × 0.625°
  • Source: MERRA-2
  • Coverage: 1981–2025
  • Cities: 59 in Hokkaidō