AI-generatedHachinohe at a glance
- Best time
- May – Jul, Sep – Oct
- Warmest month
- Aug · 28°
- Warmest sea
- Aug · 21.4°
- Sunshine a year
- 1,830 h
- Rain a year
- 1,033 mm
- Climate
- Continental
- Time zone
- UTC+9
- Elevation
- 20 m
Climate in Hachinohe
Hachinohe has warm to hot summers and cold winters with occasional snow. August is the warmest month with average highs of 28 °C, while January is the coolest at 3 °C. With around 1,830 hours of sunshine a year, Hachinohe is moderately sunny; May is the sunniest month with 6.8 hours a day.
Holiday weather through the year
Best time to visit Hachinohe
The best time to visit Hachinohe is from May to July and from September to October. For a beach holiday – sea from 21 °C, warm and mostly dry – go in September. For sightseeing, day trips and hiking, conditions are most comfortable from April to June and from September to October. The wettest month is August with 133 mm of precipitation.
Hachinohe through the seasons
How the weather changes over the seasons, with averages for each.
Hachinohe in spring
Mar – May
Fair
- 9–20 °C by day
- Sea 8 °C
- 6.0 h of sun a day
- 34 rainy days in all
Hachinohe in summer
Jun – Aug
Good
- 23–28 °C by day
- Sea 18 °C
- 5.6 h of sun a day
- 38 rainy days in all
Hachinohe in autumn
Sep – Nov
Good
- 12–25 °C by day
- Sea 18 °C
- 4.8 h of sun a day
- 30 rainy days in all
Hachinohe in winter
Dec – Feb
Poor
- 3–5 °C by day
- Sea 10 °C
- 3.7 h of sun a day
- 24 rainy days in all
Which month for what?
Beach & swimming
Sep
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Apr – Jun, Sep – Oct
15–28 °C and not too much rain
Rainy months
Aug
Rainy season or more than 12 rainy days
Snow
Dec – Mar
Snow on 2 or more days
Find your perfect month
Tell us what you like and we rate every month in Hachinohe for you.
Your best months: May – June, September
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Good
Best time to visit: May – July, September – October
Where to go in OctoberSea temperature in October
Good forSightseeing & walks
A typical day in October
- Morning, 08:00: about 13°
- Midday, 13:00: about 19°
- Afternoon, 16:00: about 17°
- Evening, 20:00: about 13°
- Night, 23:00: about 11°
05:4316:56
Cool evenings: pack a jumper or a jacket.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 05:27–06:20 · evening 16:19–17:13
- Blue hour
- Morning 05:16–05:27 · evening 17:13–17:23
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
October in Hachinohe compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs fall from about 22° at the start of the month to 15° at the end. The sea cools from 20° to 17°. The days get 1.3 h shorter.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 22° | 15° |
| Night-time low | 12° | 6° |
| Sea | 20° | 17° |
| Daylight | 11.8 h | 10.6 h |
What is the weather like in Hachinohe in October?
In October, Hachinohe is mild: daytime highs average 19 °C, and nights cool down to about 9 °C. The sea averages 18.5 °C – bracing, so a wetsuit helps for longer swims. Expect around 5.0 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 103 mm in total. All in all, October is a good month for a holiday in Hachinohe.
More details for October
- Daylight
- 11 h 12 min05:43 – 16:56
- UV index
- 4 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 19 km/haverage daily peakAll months
- Cloud cover
- 57 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC+9offset from UTC
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %33 %
- Few rainy daysweight 30 %60 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Wetsuit for longer swims
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Compare two months in Hachinohe
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
October and May bring similar holiday weather to Hachinohe (score 75 and 77). In May, days are 1 °C warmer than in October. The sea is 8 °C cooler in May. May has one more rainy day. The sun shines 2 hours longer a day in May.
| Month | October | May |
|---|---|---|
| Holiday weather score | 75 | 77 |
| Daytime high | 19° | 20° |
| Night-time low | 9° | 10° |
| Sea | 18.5° | 10.3° |
| Sunshine | 5.0 h | 6.8 hbetter |
| Rainy days | 10better | 11 |
| Rainfall | 103 mm | 86 mmbetter |
Based on the climate averages 1996–2025.
Hachinohe month by month
The typical weather for every month at a glance.
23January3° · Sea 10° · 3.6 h
In January, Hachinohe is bitterly cold: daytime highs average 3 °C, and nights often drop below freezing (−5 °C). The sea averages 9.8 °C – swimming is only for the hardy. The sun is scarce, with only about 3.6 hours a day. Precipitation falls on about 8 days, totalling 48 mm; on about 4 of them it snows. All in all, January is not an ideal month for a holiday in Hachinohe.
Hachinohe in January27February4° · Sea 8° · 4.1 h
In February, Hachinohe is cold: daytime highs average 4 °C, and nights often drop below freezing (−5 °C). The sea averages 7.6 °C – swimming is only for the hardy. Expect around 4.1 hours of sunshine a day. Precipitation falls on about 7 days, totalling 45 mm; on about 5 of them it snows. All in all, February is not an ideal month for a holiday in Hachinohe.
Hachinohe in February24March9° · Sea 7° · 4.9 h
In March, Hachinohe is cold: daytime highs average 9 °C, and nights often drop below freezing (−1 °C). The sea averages 6.8 °C – swimming is only for the hardy. Expect around 4.9 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 77 mm in total. Snow falls on about 4 days. All in all, March is not an ideal month for a holiday in Hachinohe.
Hachinohe in March60April15° · Sea 8° · 6.3 h
In April, Hachinohe is cool: daytime highs average 15 °C, and nights cool down to about 4 °C. The sea averages 7.9 °C – swimming is only for the hardy. Expect around 6.3 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 80 mm in total. All in all, April is a good month for a holiday in Hachinohe.
Hachinohe in April77May20° · Sea 10° · 6.8 h
In May, Hachinohe is mild: daytime highs average 20 °C, and nights cool down to about 10 °C. The sea averages 10.3 °C – swimming is only for the hardy. The sun shines for around 6.8 hours a day. Rain is frequent, with about 11 rainy days and 86 mm in total. All in all, May is a good month for a holiday in Hachinohe.
Hachinohe in May76June23° · Sea 14° · 6.1 h
In June, Hachinohe is warm: daytime highs average 23 °C, and nights cool down to about 14 °C. The sea averages 14.1 °C – swimming is only for the hardy. Expect around 6.1 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 93 mm in total. All in all, June is a good month for a holiday in Hachinohe.
Hachinohe in June66July27° · Sea 18° · 5.1 h
In July, Hachinohe is warm: daytime highs average 27 °C, and nights cool down to about 18 °C. The sea averages 18.0 °C – bracing, so a wetsuit helps for longer swims. Expect around 5.1 hours of sunshine a day. Rain is frequent, with about 14 rainy days and 133 mm in total. On about 7 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, July is a good month for a holiday in Hachinohe.
Hachinohe in July59August28° · Sea 21° · 5.6 h
In August, Hachinohe is hot: daytime highs average 28 °C, and even at night it stays warm at around 20 °C. The sea averages 21.4 °C – refreshing for a swim. Expect around 5.6 hours of sunshine a day. Rain is frequent, with about 14 rainy days and 133 mm in total. On about 11 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is a so-so month for a holiday in Hachinohe.
Hachinohe in August74September25° · Sea 21° · 5.5 h
In September, Hachinohe is warm: daytime highs average 25 °C, and nights cool down to about 16 °C. The sea averages 21.3 °C – refreshing for a swim. Expect around 5.5 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 121 mm in total. All in all, September is a good month for a holiday in Hachinohe.
Hachinohe in September75October19° · Sea 19° · 5.0 h
In October, Hachinohe is mild: daytime highs average 19 °C, and nights cool down to about 9 °C. The sea averages 18.5 °C – bracing, so a wetsuit helps for longer swims. Expect around 5.0 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 103 mm in total. All in all, October is a good month for a holiday in Hachinohe.
Hachinohe in October42November12° · Sea 15° · 3.9 h
In November, Hachinohe is cool: daytime highs average 12 °C, and nights cool down to about 3 °C. The sea averages 15.3 °C – swimming is only for the hardy. The sun is scarce, with only about 3.9 hours a day. Rain is frequent, with about 9 rainy days and 59 mm in total. All in all, November is a so-so month for a holiday in Hachinohe.
Hachinohe in November21December5° · Sea 12° · 3.3 h
In December, Hachinohe is cold: daytime highs average 5 °C, and nights often drop below freezing (−2 °C). The sea averages 12.3 °C – swimming is only for the hardy. The sun is scarce, with only about 3.3 hours a day. Rain falls on about 9 days, adding up to 55 mm. Snow falls on about 3 days. All in all, December is not an ideal month for a holiday in Hachinohe.
Hachinohe in DecemberClimate in detail
Year & climate table
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Hachinohe
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Frost below 0°
- Cold 0–8°
- Cool 8–15°
- Pleasant 15–20°
- Warm 20–24°
- muggy month (15+ muggy days)
CoolOctober: nights around 9°. A duvet at night and a jumper for the evening.
The coolest nights are in January (−5°), the warmest in August (20°). Tropical nights of 20 °C and more are the rule in August; then air conditioning or a fan helps you sleep. Nights are pleasant for sleeping (15 to 20 °C) in July and in September. Nights fall below 8 °C on average from November to April, so the room should be heated. It is muggy (dew point 18 °C or more) on about 54 days a year, mostly from July to August.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 23 | 3° | −5° | 9.8° | 3.6 h | 8 | 48 |
| FebruaryFeb | 27 | 4° | −5° | 7.6° | 4.1 h | 7 | 45 |
| MarchMar | 24 | 9° | −1° | 6.8° | 4.9 h | 11 | 77 |
| AprilApr | 60 | 15° | 4° | 7.9° | 6.3 h | 12 | 80 |
| MayMay | 77 | 20° | 10° | 10.3° | 6.8 h | 11 | 86 |
| JuneJun | 76 | 23° | 14° | 14.1° | 6.1 h | 11 | 93 |
| JulyJul | 66 | 27° | 18° | 18.0° | 5.1 h | 14 | 133 |
| AugustAug | 59 | 28° | 20° | 21.4° | 5.6 h | 14 | 133 |
| SeptemberSep | 74 | 25° | 16° | 21.3° | 5.5 h | 11 | 121 |
| OctoberOct | 75 | 19° | 9° | 18.5° | 5.0 h | 10 | 103 |
| NovemberNov | 42 | 12° | 3° | 15.3° | 3.9 h | 9 | 59 |
| DecemberDec | 21 | 5° | −2° | 12.3° | 3.3 h | 9 | 55 |
Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
40.50° N, 141.50° E · 20 m · Asia/Tokyo
Sea temperature
Sea temperature in Hachinohe
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 17.7 – 19.7 °C
Swimming season: Aug – Sep
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Hachinohe ranges from 6.8 °C in March to 21.4 °C in August. It is warm enough for a comfortable swim (20 °C and more) from August to September.
From November to February the sea is even warmer than the afternoon air. The sea temperature varies from year to year: in August, eight out of ten years were between 19.7 and 22.8 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 9.8° | 8.8° | 10.5° | cold |
| FebruaryFeb | 7.6° | 5.8° | 9.1° | cold |
| MarchMar | 6.8° | 5.0° | 8.4° | cold |
| AprilApr | 7.9° | 6.4° | 9.1° | cold |
| MayMay | 10.3° | 9.1° | 11.6° | cold |
| JuneJun | 14.1° | 13.1° | 15.6° | cold |
| JulyJul | 18.0° | 16.9° | 19.5° | fresh |
| AugustAug | 21.4° | 19.7° | 22.8° | refreshing |
| SeptemberSep | 21.3° | 19.9° | 23.1° | refreshing |
| OctoberOct | 18.5° | 17.7° | 19.7° | fresh |
| NovemberNov | 15.3° | 14.5° | 16.2° | cold |
| DecemberDec | 12.3° | 11.5° | 13.0° | cold |
Sunshine
Sunshine hours in Hachinohe
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 5.0 of 11.2 hours of daylight in Hachinohe, 45 % of the daylight hours.
Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.
Rain
Rain in Hachinohe: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Hachinohe has about 10 rainy days with 103 mm of rain in total.
UV index
UV index in Hachinohe
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 4 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.
The sun is strongest in June (UV 10).
Minutes until sunburn in October
- Very fair skin
- about 35 min
- Fair skin
- about 40 min
- Light brown skin
- about 60 min
- Olive skin
- about 75 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Wind & clouds
Wind and clouds in Hachinohe
How breezy and how cloudy Hachinohe is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Hachinohe typically peaks at 19 km/h during the day: Beaufort 3, gentle breeze.
Breezy months for windsurfing and kiting
From Beaufort 4 (20 km/h) the daily breeze is usually enough for windsurfing and often for kiting: Nov – Apr.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 57 % of the sky over Hachinohe: variable cloud, with about 5.0 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Heat & humidity
Heat and humidity in Hachinohe
How often the day gets hot in Hachinohe (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, Hachinohe has about 0 hot days, with an average daytime high of 19 °C: pleasant. Heat plays no part this month.
Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year
Snow
Snow in Hachinohe
Snow is possible in Hachinohe, but no month makes it likely: the chance of seeing snow during a week's stay, the days with fresh snow and how much falls. Tap a month to select it.
Snow calendar
- hardly any
- possible
- likely
- very likely
In October, it hardly ever snows in Hachinohe.
Snow days bring at least 1 cm of fresh snow. Fresh snow comes from ERA5 snowfall (1996–2025) at the height of the place, not on the slopes above it; the snow chance also weighs whether the snow settles. An estimate from climate averages, not a snow report.
Planning a trip to Hachinohe
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Hachinohe in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Hachinohe has its best school-holiday weather during May half-term (score 77) and its weakest during the Christmas holidays (score 22).
- 49
Easter holidays
Mar – Apr
Fair
- 13 °C by day
- Sea 8 °C
- 5.9 h of sun a day
- 12 rainy days a month
Keep in mind: Snow
- 77
May half-term
May – Jun
GoodBest holidays
- 21 °C by day
- Sea 11 °C
- 6.7 h of sun a day
- 11 rainy days a month
Good for: Sightseeing & walks
- 61
Summer holidays
Jul – Aug
Good
- 28 °C by day
- Sea 20 °C
- 5.4 h of sun a day
- 14 rainy days a month
Keep in mind: Frequent rain
- 75
October half-term
Oct
Good
- 19 °C by day
- Sea 19 °C
- 5.0 h of sun a day
- 10 rainy days a month
Good for: Sightseeing & walks
- 22
Christmas holidays
Dec – Jan
Poor
- 4 °C by day
- Sea 11 °C
- 3.5 h of sun a day
- 8 rainy days a month
Keep in mind: Snow
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 11 h 30 min
- Distance
- 9,140 km
- Time zone
- UTC+9
- Jet lag
- About 8 days (8 h east)
Rule of thumb for flying east: for a few days before, go to bed and get up a little earlier, and get plenty of morning light at your destination.
Most routes need a change of planes, which adds time.
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Good to know: Japan
- Currency
- Japanese Yen (JPY)
- Language
- Japanese
- Sockets
- Type A, B · 100 V
- Traffic
- Drives on the left
- Dialling code
- +81
UK plugs need a travel adapter
Only 100 V: chargers marked 100–240 V work, other devices need a voltage converter.
Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.
Compare & alternatives
Compare with another place
Hachinohe compared
Put Hachinohe side by side with another destination.
Hachinohe vs Misawa
In October the holiday weather in Hachinohe and Misawa is about equally good (score 75 vs 74). During the day it is about as warm in Misawa as in Hachinohe. The sea is about equally warm.
| in October | Hachinohe | Misawa |
|---|---|---|
| Holiday weather score | 75 | 74 |
| Daytime high | 19° | 19° |
| Sea | 19° | 19° |
| Sunshine | 5 h | 5 h |
| Rainy days | 10 | 10 |
| Best time | May – Jul, Sep – Oct | Aug – Sep |
Through the year
Best places in the country
Japan in October: the best places
In October, Hachinohe ranks 1 among the 31 nearest destinations in this country.
- HachinoheThis page19°19°75
- 2Sendai20°70
- 3Fukushima20°70
- 4Aomori19°19°68
- 5Hakodate18°19°68
- 6Sano22°68
- 7Maebashi22°68
- 8Morioka18°67
Places nearby
Near Hachinohe
Other destinations close by.
Places with a similar climate
Places with a climate like Hachinohe
Destinations whose weather through the year is closest to Hachinohe's – good alternatives.
Frequently asked questions about Hachinohe
When is the best time to visit Hachinohe?
The best time to visit Hachinohe is from May to July and from September to October. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Hachinohe?
The sea temperature in Hachinohe ranges from 6.8 °C in March to 21.4 °C in August. It is warm enough for a comfortable swim (20 °C and more) from August to September.
Can you swim in Hachinohe in October?
Only if you don't mind cold water: in October the sea averages just 18.5 °C. Comfortable swimming is possible from August to September.
What is the warmest month in Hachinohe?
August is the warmest month, with average highs of 28 °C and nights around 20 °C. January is the coolest month at 3 °C.
When does it rain most in Hachinohe?
The wettest month is August with 133 mm of precipitation. The driest month is February with 45 mm.
How many hours of sunshine does Hachinohe get?
Hachinohe gets around 1,830 hours of sunshine a year. The sunniest month is May with 6.8 hours a day; in December there are 3.3 hours a day.
What time zone is Hachinohe in?
Hachinohe is on UTC+9 all year.
How long is the flight from London to Hachinohe?
A nonstop flight from London to Hachinohe takes about 11 h 30 min, for a straight-line distance of about 9,140 km. Most routes need a change of planes, which adds time.
Which school holidays are best for Hachinohe?
Hachinohe has its best school-holiday weather during May half-term (score 77) and its weakest during the Christmas holidays (score 22). Holiday ratings (0–100): Easter holidays 49, May half-term 77, summer holidays 61, October half-term 75, Christmas holidays 22.