Climate Insights for Hitachi-ota

Hitachi-ōta Shi, Ibaraki, Japan

Hottest
August
29°C peak
Coldest
January
2°C low
Wettest
September
180mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Hitachi-ota is temperate. The average annual temperature is 15°C and approximately 1504mm of precipitation falls per year. Hitachi-ota receives a notable amount of rainfall throughout the year, including during its driest month. Hitachi-ota is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, February, December, when temperatures can drop to 2°C. Light snow can occur between January and March.

Temperature

10° 15° 20° 25° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 8° Average: 5° Min: 2° Feb Max: 9° Average: 5° Min: 3° Mar Max: 12° Average: 9° Min: 6° Apr Max: 17° Average: 13° Min: 10° May Max: 21° Average: 18° Min: 15° Jun Max: 24° Average: 21° Min: 19° Jul Max: 28° Average: 25° Min: 23° Aug Max: 29° Average: 26° Min: 24° Sep Max: 26° Average: 23° Min: 21° Oct Max: 20° Average: 18° Min: 15° Nov Max: 16° Average: 13° Min: 10° Dec Max: 11° Average: 7° Min: 4°
Max
Average
Min

Temperatures in Hitachi-ota vary considerably across the year, with a 27°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 29°C and the mean temperature sits around 26°C. January is the coolest month, with minimum temperatures around 2°C and an average of 5°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows. The sharpest temperature change occurs between September and October, with a 6°C shift in average temperatures.

Precipitation

0mm 50mm 100mm 150mm 200mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 58mm Snow: 5mm Feb Precipitation: 60mm Snow: 4mm Mar Precipitation: 128mm Snow: 4mm Apr Precipitation: 127mm Snow: 0mm May Precipitation: 136mm Snow: 0mm Jun Precipitation: 154mm Snow: 0mm Jul Precipitation: 180mm Snow: 0mm Aug Precipitation: 155mm Snow: 0mm Sep Precipitation: 180mm Snow: 0mm Oct Precipitation: 170mm Snow: 0mm Nov Precipitation: 102mm Snow: 0mm Dec Precipitation: 53mm Snow: 0mm
Precipitation
Snow

Hitachi-ota is a fairly wet location, receiving approximately 1504mm of precipitation annually, which averages out to around 125mm per month. The wettest month is September, averaging 180mm of rainfall. July and October also tend to see above-average precipitation. The driest month is December, with just 53mm. That's 127mm less than September, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Light snowfall can occur between January and March, totalling around 14cm annually. January is the snowiest month with approximately 5cm.

Wind

0km/h 5km/h 10km/h 15km/h 20km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 19km/h Feb Wind Speed: 19km/h Mar Wind Speed: 18km/h Apr Wind Speed: 19km/h May Wind Speed: 16km/h Jun Wind Speed: 15km/h Jul Wind Speed: 14km/h Aug Wind Speed: 15km/h Sep Wind Speed: 16km/h Oct Wind Speed: 16km/h Nov Wind Speed: 16km/h Dec Wind Speed: 17km/h
Wind Speed

Hitachi-ota is mildly breezy, with an average annual wind speed of 17km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 19km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 14km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 5km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 19km/h in winter, 18km/h in spring, 15km/h in summer, 16km/h in autumn.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

89 days until Summer

It is currently spring in Hitachi-ota, which began on March 20, 2026. Hitachi-ota is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 29°C, while the coldest stretch bottoms out in January near 2°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

Spring

Temperatures range from 6 to 21°C. Rainfall is heavy, totalling around 391mm across the season with a monthly average of 130mm. Winds are moderate at around 18km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 19 to 29°C. Rainfall is heavy, totalling around 488mm across the season with a monthly average of 163mm. Winds are generally light, averaging 15km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 10 to 26°C. Rainfall is heavy, totalling around 453mm across the season with a monthly average of 151mm. Winds are moderate at around 16km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 2 to 11°C. Precipitation is moderate at around 171mm for the season, averaging 57mm per month. Expect around 9cm of snow accumulation during this period. Winds are moderate at around 19km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Monthly Climate Data

The table below shows monthly climate averages for Hitachi-ota based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
2 °C
8 °C
19 km/h
58 mm
5 cm
Feb
3 °C
9 °C
19 km/h
60 mm
4 cm
Mar Current
6 °C
12 °C
18 km/h
128 mm
4 cm
Apr
10 °C
17 °C
19 km/h
127 mm
0 cm
May
15 °C
21 °C
16 km/h
136 mm
0 cm
Jun
19 °C
24 °C
15 km/h
154 mm
0 cm
Jul
23 °C
28 °C
14 km/h
180 mm
0 cm
Aug
24 °C
29 °C
15 km/h
155 mm
0 cm
Sep
21 °C
26 °C
16 km/h
180 mm
0 cm
Oct
15 °C
20 °C
16 km/h
170 mm
0 cm
Nov
10 °C
16 °C
16 km/h
102 mm
0 cm
Dec
4 °C
11 °C
17 km/h
53 mm
0 cm
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Metric (°C, km/h)