WEATHERblaze

Kanagawa Historical Weather Data & Climate

Historical Climate Data for 36 Cities
1981–2025
Japan

Quick Climate Facts

(19812025)
Hottest City
🔥
Kawasaki
Jul High 34.2°C
Coldest City
❄️
Oyama
Jan Low -9.3°C
Wettest City
🌧
Yugawara
1856 mm/yr
Driest City
🏜️
Yokosuka
454 mm/yr
Hottest Month
🌡
August
Avg 26.3°C
Max 33.7°C
Coldest Month
🧊
February
Avg 6.2°C
Min -3.9°C
Cities With Data
🏙️
36
cities in Kanagawa
Data Coverage
📅
45 yrs
19812025

Kanagawa Climate Overview

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

Kanagawa has an average annual temperature of 15.1°C across all 36 cities, with approximately 1540 mm of annual precipitation and average humidity of 80%. Temperatures peak in August and drop to their lowest in February, while rainfall is highest during autumn months.

The warmest city is Kawasaki with average July highs of 34.2°C, while Oyama is the coldest with average January lows of -9.3°C. Humidity remains high throughout the year creating cold and damp conditions. These seasonal patterns make summer pleasant for travel, while winters can bring frost and occasional snowfall.

🏙️ Cities in Kanagawa — Weather History

📊 Kanagawa Monthly Climate Data

Monthly Climate Data
Month🌤️HighLowAvgHumid %Rain (mm)Wind (m/s)Solar (kWh/m²)
January🌤️14.1°C-3.9°C5.1°C76%552.62.80
February🌤️16.4°C-3.9°C6.2°C75%632.83.50
March19.7°C-2.1°C8.8°C76%1213.04.10
April23.8°C0.7°C12.3°C77%1292.94.90
May27.4°C6.8°C17.1°C79%1392.75.10
June🌧️30.5°C12.3°C21.4°C83%1842.44.60
July🌧️33.2°C17.3°C25.2°C84%1672.44.90
August🌧️33.7°C18.9°C26.3°C82%1562.45.10
September🌧️31.6°C13.2°C22.4°C83%2072.53.90
October🌧️26.6°C6.6°C16.6°C83%1782.53.10
November21.7°C1.3°C11.5°C80%892.42.70
December🌤️17.4°C-2.1°C7.6°C77%532.42.50

Showing average climate conditions across 45 years (1981–2025) · averaged across all 36 cities in Kanagawa

🌦 Weather in Kanagawa Across Seasons

❄️ Winter in Kanagawa

February is Kanagawa's coldest month, with average lows reaching -3.9°C.
🌡️December to February (avg) · -3.3°C16.0°C

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

☀️ Summer in Kanagawa

Summer temperatures in Kanagawa peak in August, climbing to 33.7°C.
🌡️July to September (avg) · 16.5°C32.8°C

🌤️ Early mornings and evenings are most comfortable during this Hot Summer season.

🌧️ Rainy Season in Kanagawa

Kanagawa sees its highest rainfall in September, receiving approximately 207 mm of precipitation.
🌧️June to October (avg) ·  up to 207 mm

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

📈 Kanagawa Monthly Averages

🌡️ Temperature Patterns

Region-wide monthly averages across 36 cities · 19812025 · °C

🌡️ Kanagawa Monthly Temperature Guide

August is the hottest month in Kanagawa, with average highs reaching 33.7°C, while February is the coldest with lows dropping to -3.9°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 · 19812025 · mm/month

💨 Humidity & Wind Speed

Monthly averages · 19812025

🌧 Rainfall & Humidity in Kanagawa

Kanagawa receives its highest rainfall in September, while humidity peaks during summer months.
🌧️ Wettest: September207 mm☀️ Driest: December53 mm

💧 Humidity peaks at 84% in July · annual avg 80%

📅 Kanagawa Yearly Climate Trends

The warmest year on record was 2024 (avg: 16.6°C), while the coldest year was 1983 (avg: 13.7°C).

📊 Key Climate Trends

  • 🌡️ Kanagawa's temperature shows a slight warming trend 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 36 cities in Kanagawa · Last 10 years · °C

Kanagawa's temperature shows a slight warming trend over the past decade. The region-wide average sits at 15.1°C with annual rainfall averaging 1540 mm.

🌧️ Annual Precipitation

View Range:

Averaged across all 36 cities in Kanagawa · Last 10 years · mm/year

Annual rainfall in Kanagawa 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 36 cities in Kanagawa for each year.

YearMin TempAvg TempMax TempRainfall (mm)Avg HumidityAvg Wind
2025
6.7°C16.2°C25.7°C150880%2.6 m/s
2024 🌧️
7.2°C16.6°C26.0°C213381%2.6 m/s
2023
7.1°C16.5°C25.9°C166980%2.6 m/s
2022
6.3°C15.5°C24.6°C168081%2.6 m/s
2021
6.3°C15.5°C24.6°C192880%2.6 m/s
2020
6.5°C15.6°C24.7°C177182%2.6 m/s
2019
6.4°C15.7°C25.0°C181480%2.6 m/s
2018
5.9°C15.7°C25.4°C158480%2.7 m/s
2017
5.6°C15.1°C24.5°C151478%2.6 m/s
2016
5.8°C15.5°C25.1°C172381%2.5 m/s

Showing 1 to 10 of 45 years

🏙️ Explore More Cities in Kanagawa

❓ Frequently Asked Questions

What is the hottest city in Kanagawa?
Kawasaki is the hottest city in Kanagawa with an average July high of 34.2°C based on 45 years of data. View Kawasaki weather history →
What is the coldest city in Kanagawa?
Oyama is the coldest city with average January lows of -9.3°C. View Oyama weather history →
Which city in Kanagawa gets the most rain?
Yugawara is the wettest city in Kanagawa with approximately 1856 mm of annual precipitation on average.
What is the warmest month in Kanagawa?
August is the warmest month in Kanagawa, with region-wide average highs of 33.7°C and average lows of 18.9°C.
What is the coldest month in Kanagawa?
February is the coldest month in Kanagawa with average lows of -3.9°C and average highs of 16.4°C.
What is the rainiest month in Kanagawa?
September is the rainiest month in Kanagawa with approximately 207 mm on average, while December is the driest with 53 mm.
How many cities in Kanagawa have weather data?
WeatherBlaze has historical weather data for 36 cities in Kanagawa, 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: 19812025
  • Cities: 36 in Kanagawa