AI-generatedHitachi at a glance
- Best time
- Apr – Jun, Sep – Nov
- Warmest month
- Aug · 29°
- Warmest sea
- Aug · 24.2°
- Sunshine a year
- 2,020 h
- Rain a year
- 1,542 mm
- Climate
- Temperate
- Time zone
- UTC+9
- Elevation
- 51 m
Climate in Hitachi
Hitachi has a temperate climate with warm summers and cool winters. August is the warmest month with average highs of 29 °C, while January is the coolest at 9 °C. With around 2,020 hours of sunshine a year, Hitachi is moderately sunny; January is the sunniest month with 6.2 hours a day.
Holiday weather through the year
Best time to visit Hitachi
The best time to visit Hitachi is from April to June and from September to November. In September and October, though, the typhoon season is at its peak: check the forecast before you go. The sea reaches 24.2 °C in August, but rain or cool air gets in the way of a classic beach holiday. For sightseeing, day trips and hiking, conditions are most comfortable in November. Rain is frequent in March and from July to August; the wettest month is October with 202 mm.
Hitachi through the seasons
How the weather changes over the seasons, with averages for each.
Hitachi in spring
Mar – May
Good
- 12–21 °C by day
- Sea 15 °C
- 6.1 h of sun a day
- 38 rainy days in all
Hitachi in summer
Jun – Aug
Good
- 24–29 °C by day
- Sea 22 °C
- 5.2 h of sun a day
- 41 rainy days in all
Hitachi in autumn
Sep – Nov
Good
- 16–26 °C by day
- Sea 21 °C
- 4.8 h of sun a day
- 39 rainy days in all
Hitachi in winter
Dec – Feb
Fair
- 9–11 °C by day
- Sea 15 °C
- 6.0 h of sun a day
- 24 rainy days in all
Which month for what?
Beach & swimming
No month
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Nov
15–28 °C and not too much rain
Rainy months
Mar, Jul – Aug
Rainy season or more than 12 rainy days
Find your perfect month
Tell us what you like and we rate every month in Hitachi for you.
Your best months: May – June, October
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: April – June, September – November
October is the peak of the typhoon season Hurricane season
Where to go in OctoberSea temperature in October
Keep in mindStorm season
A typical day in October
- Morning, 08:00: about 17°
- Midday, 13:00: about 21°
- Afternoon, 16:00: about 20°
- Evening, 20:00: about 17°
- Night, 23:00: about 16°
05:4317:03
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 05:27–06:18 · evening 16:28–17:19
- Blue hour
- Morning 05:17–05:27 · evening 17:19–17:29
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 Hitachi compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs fall from about 23° at the start of the month to 18° at the end. The sea cools from 22° to 20°. The days get 1.1 h shorter.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 23° | 18° |
| Night-time low | 17° | 11° |
| Sea | 22° | 20° |
| Daylight | 11.9 h | 10.8 h |
What is the weather like in Hitachi in October?
In October, Hitachi is warm: daytime highs average 21 °C, and nights cool down to about 14 °C. The sea averages 21.0 °C – refreshing for a swim. Expect around 4.6 hours of sunshine a day. Rain is frequent, with about 14 rainy days and 202 mm in total. All in all, October is a good month for a holiday in Hitachi.
More details for October
- Daylight
- 11 h 19 min05:43 – 17:03
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 3 daysdew point 18 °C or moreAll months
- Wind
- 21 km/haverage daily peakAll months
- Cloud cover
- 61 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+9offset from UTC
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %27 %
- Few rainy daysweight 30 %30 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Swimwear
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Compare two months in Hitachi
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
May has the better holiday weather in Hitachi: score 72 against 64. Daytime highs are about the same. The sea is 4 °C cooler in May. May has one rainy day fewer. The sun shines 2 hours longer a day in May.
| Month | October | May |
|---|---|---|
| Holiday weather score | 64 | 72better |
| Daytime high | 21° | 21° |
| Night-time low | 14° | 13° |
| Sea | 21.0° | 16.7° |
| Sunshine | 4.6 h | 6.1 hbetter |
| Rainy days | 14 | 13better |
| Rainfall | 202 mm | 154 mmbetter |
| Muggy days | 3 | 1better |
Based on the climate averages 1996–2025.
Hitachi month by month
The typical weather for every month at a glance.
37January9° · Sea 14° · 6.2 h
In January, Hitachi is cold: daytime highs average 9 °C, and nights cool down to about 1 °C. The sea averages 14.4 °C – swimming is only for the hardy. Expect around 6.2 hours of sunshine a day. Rain falls on about 8 days, adding up to 68 mm. All in all, January is not an ideal month for a holiday in Hitachi.
Hitachi in January37February9° · Sea 13° · 6.1 h
In February, Hitachi is cold: daytime highs average 9 °C, and nights cool down to about 1 °C. The sea averages 13.1 °C – swimming is only for the hardy. Expect around 6.1 hours of sunshine a day. Rain falls on about 8 days, adding up to 71 mm. All in all, February is not an ideal month for a holiday in Hitachi.
Hitachi in February43March12° · Sea 13° · 6.0 h
In March, Hitachi is cool: daytime highs average 12 °C, and nights cool down to about 3 °C. The sea averages 13.0 °C – swimming is only for the hardy. Expect around 6.0 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 127 mm in total. All in all, March is a so-so month for a holiday in Hitachi.
Hitachi in March67April17° · Sea 14° · 6.2 h
In April, Hitachi is mild: daytime highs average 17 °C, and nights cool down to about 8 °C. The sea averages 14.4 °C – swimming is only for the hardy. Expect around 6.2 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 131 mm in total. All in all, April is a good month for a holiday in Hitachi.
Hitachi in April72May21° · Sea 17° · 6.1 h
In May, Hitachi is warm: daytime highs average 21 °C, and nights cool down to about 13 °C. The sea averages 16.7 °C – swimming is only for the hardy. Expect around 6.1 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 154 mm in total. All in all, May is a good month for a holiday in Hitachi.
Hitachi in May65June24° · Sea 19° · 4.6 h
In June, Hitachi is warm: daytime highs average 24 °C, and nights cool down to about 17 °C. The sea averages 19.2 °C – bracing, so a wetsuit helps for longer swims. Expect around 4.6 hours of sunshine a day. Rain is frequent, with about 14 rainy days and 161 mm in total. All in all, June is a good month for a holiday in Hitachi.
Hitachi in June58July28° · Sea 22° · 5.0 h
In July, Hitachi is hot: daytime highs average 28 °C, and even at night it stays warm at around 21 °C. The sea averages 21.9 °C – refreshing for a swim. Expect around 5.0 hours of sunshine a day. It rains often – on about 15 days, adding up to 160 mm. 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 so-so month for a holiday in Hitachi.
Hitachi in July58August29° · Sea 24° · 6.0 h
In August, Hitachi is hot: daytime highs average 29 °C, and even at night it stays warm at around 23 °C. The sea averages 24.2 °C – pleasant for swimming. Expect around 6.0 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 115 mm in total. On about 13 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 Hitachi.
Hitachi in August64September26° · Sea 24° · 4.7 h
In September, Hitachi is warm: daytime highs average 26 °C, and even at night it stays warm at around 20 °C. The sea averages 23.5 °C – pleasant for swimming. Expect around 4.7 hours of sunshine a day. It rains often – on about 14 days, adding up to 168 mm. The air is often humid and muggy. All in all, September is a good month for a holiday in Hitachi.
Hitachi in September64October21° · Sea 21° · 4.6 h
In October, Hitachi is warm: daytime highs average 21 °C, and nights cool down to about 14 °C. The sea averages 21.0 °C – refreshing for a swim. Expect around 4.6 hours of sunshine a day. Rain is frequent, with about 14 rainy days and 202 mm in total. All in all, October is a good month for a holiday in Hitachi.
Hitachi in October62November16° · Sea 19° · 5.1 h
In November, Hitachi is mild: daytime highs average 16 °C, and nights cool down to about 8 °C. The sea averages 18.8 °C – bracing, so a wetsuit helps for longer swims. Expect around 5.1 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 109 mm in total. All in all, November is a good month for a holiday in Hitachi.
Hitachi in November45December11° · Sea 17° · 5.7 h
In December, Hitachi is cool: daytime highs average 11 °C, and nights cool down to about 3 °C. The sea averages 16.6 °C – swimming is only for the hardy. Expect around 5.7 hours of sunshine a day. Rain falls on about 8 days, adding up to 76 mm. All in all, December is a so-so month for a holiday in Hitachi.
Hitachi 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 Hitachi
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Cold 0–8°
- Cool 8–15°
- Pleasant 15–20°
- Warm 20–24°
- muggy month (15+ muggy days)
CoolOctober: nights around 14°. A duvet at night and a jumper for the evening. Muggy on about 3 days (dew point 18 °C or more).
The coolest nights are in January (1°), the warmest in August (23°). Tropical nights of 20 °C and more are the rule from July to September; then air conditioning or a fan helps you sleep. Nights are pleasant for sleeping (15 to 20 °C) in June. Nights fall below 8 °C on average from December to March, so the room should be heated. It is muggy (dew point 18 °C or more) on about 93 days a year, mostly from July to September.
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 | 37 | 9° | 1° | 14.4° | 6.2 h | 8 | 68 |
| FebruaryFeb | 37 | 9° | 1° | 13.1° | 6.1 h | 8 | 71 |
| MarchMar | 43 | 12° | 3° | 13.0° | 6.0 h | 13 | 127 |
| AprilApr | 67 | 17° | 8° | 14.4° | 6.2 h | 13 | 131 |
| MayMay | 72 | 21° | 13° | 16.7° | 6.1 h | 13 | 154 |
| JuneJun | 65 | 24° | 17° | 19.2° | 4.6 h | 14 | 161 |
| JulyJul | 58 | 28° | 21° | 21.9° | 5.0 h | 15 | 160 |
| AugustAug | 58 | 29° | 23° | 24.2° | 6.0 h | 13 | 115 |
| SeptemberSep | 64 | 26° | 20° | 23.5° | 4.7 h | 14 | 168 |
| OctoberOct | 64 | 21° | 14° | 21.0° | 4.6 h | 14 | 202 |
| NovemberNov | 62 | 16° | 8° | 18.8° | 5.1 h | 11 | 109 |
| DecemberDec | 45 | 11° | 3° | 16.6° | 5.7 h | 8 | 76 |
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
36.60° N, 140.65° E · 51 m · Asia/Tokyo
Sea temperature
Sea temperature in Hitachi
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 19.2 – 22.6 °C
Swimming season: Jul – Oct
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Hitachi ranges from 13.0 °C in March to 24.2 °C in August. It is warm enough for a comfortable swim (20 °C and more) from July to October.
From November to March 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 23.1 and 25.6 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 14.4° | 12.5° | 16.3° | cold |
| FebruaryFeb | 13.1° | 10.2° | 15.6° | cold |
| MarchMar | 13.0° | 10.3° | 15.1° | cold |
| AprilApr | 14.4° | 12.8° | 16.2° | cold |
| MayMay | 16.7° | 14.7° | 18.3° | cold |
| JuneJun | 19.2° | 17.6° | 20.5° | fresh |
| JulyJul | 21.9° | 20.4° | 23.5° | refreshing |
| AugustAug | 24.2° | 23.1° | 25.6° | pleasant |
| SeptemberSep | 23.5° | 22.1° | 25.0° | pleasant |
| OctoberOct | 21.0° | 19.2° | 22.6° | refreshing |
| NovemberNov | 18.8° | 17.2° | 20.8° | fresh |
| DecemberDec | 16.6° | 14.4° | 18.7° | cold |
Sunshine
Sunshine hours in Hitachi
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 4.6 of 11.3 hours of daylight in Hitachi, 41 % 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 Hitachi: 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, Hitachi has about 14 rainy days with 202 mm of rain in total.
UV index
UV index in Hitachi
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 5 · 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 30 min
- Fair skin
- about 35 min
- Light brown skin
- about 50 min
- Olive skin
- about 60 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 Hitachi
How breezy and how cloudy Hitachi 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 Hitachi typically peaks at 21 km/h during the day: Beaufort 4, moderate 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: Sep – May.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 61 % of the sky over Hitachi: variable cloud, with about 4.6 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 Hitachi
How often the day gets hot in Hitachi (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, Hitachi has about 0 hot days, with an average daytime high of 21 °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
Planning a trip to Hitachi
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Hitachi 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.
Hitachi has its best school-holiday weather during May half-term (score 71) and its weakest during the Christmas holidays (score 41).
- 60
Easter holidays
Mar – Apr
Good
- 16 °C by day
- Sea 14 °C
- 6.1 h of sun a day
- 13 rainy days a month
Keep in mind: Frequent rain
- 71
May half-term
May – Jun
GoodBest holidays
- 22 °C by day
- Sea 17 °C
- 5.8 h of sun a day
- 13 rainy days a month
- 58
Summer holidays
Jul – Aug
Fair
- 29 °C by day
- Sea 23 °C
- 5.7 h of sun a day
- 13 rainy days a month
Keep in mind: Frequent rain, Storm season
- 64
October half-term
Oct
Good
- 21 °C by day
- Sea 21 °C
- 4.6 h of sun a day
- 14 rainy days a month
Keep in mind: Storm season
- 41
Christmas holidays
Dec – Jan
Fair
- 10 °C by day
- Sea 16 °C
- 6.0 h of sun a day
- 8 rainy days a month
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 12 h
- Distance
- 9,520 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.
Storm season
Hitachi lies in an area that Pacific typhoons can reach. The typhoon season runs from June to November, with most storms from August to October. A direct hit on any one place is rare, but if you travel then, keep an eye on weather warnings and book flexibly.
- January
- February
- March
- April
- May
- June: Season
- July: Season
- August: Peak
- September: Peak
- October: Peak
- November: Season
- December
Official season dates of the regional warning centres (NOAA, JMA, IMD, Météo-France, BoM, Fiji Meteorological Service); not a forecast.
Compare & alternatives
Compare with another place
Hitachi compared
Put Hitachi side by side with another destination.
Hitachi vs Mito
In October the holiday weather in Hitachi and Mito is about equally good (score 64 vs 64). During the day it is about as warm in Mito as in Hitachi.
| in October | Hitachi | Mito |
|---|---|---|
| Holiday weather score | 64 | 64 |
| Daytime high | 21° | 21° |
| Sea | 21° | no sea nearby |
| Sunshine | 5 h | 5 h |
| Rainy days | 14 | 14 |
| Best time | Apr – Jun, Sep – Nov | Apr – Jun, Sep – Nov |
Through the year
Best places in the country
Japan in October: the best places
In October, Hitachi ranks 19 among the 31 nearest destinations in this country.
- Fukushima20°70
- 2Sendai20°70
- 3Sano22°68
- 4Maebashi22°68
- 5Takasaki22°68
- 6Karuizawa18°68
- 7Aizuwakamatsu20°67
- 8Kawagoe22°67
- 19HitachiThis page21°21°64
Places nearby
Near Hitachi
Other destinations close by.
Places with a similar climate
Places with a climate like Hitachi
Destinations whose weather through the year is closest to Hitachi's – good alternatives.
Frequently asked questions about Hitachi
When is the best time to visit Hitachi?
The best time to visit Hitachi is from April to June and from September to November. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Hitachi?
The sea temperature in Hitachi ranges from 13.0 °C in March to 24.2 °C in August. It is warm enough for a comfortable swim (20 °C and more) from July to October.
Can you swim in Hitachi in October?
Yes. In October the sea averages 21.0 °C – refreshing for a swim.
What is the warmest month in Hitachi?
August is the warmest month, with average highs of 29 °C and nights around 23 °C. January is the coolest month at 9 °C.
When does it rain most in Hitachi?
Rain is frequent in March and from July to August; the wettest month is October with 202 mm. The driest month is January with 68 mm.
How many hours of sunshine does Hitachi get?
Hitachi gets around 2,020 hours of sunshine a year. The sunniest month is January with 6.2 hours a day; in June there are 4.6 hours a day.
What time zone is Hitachi in?
Hitachi is on UTC+9 all year.
How long is the flight from London to Hitachi?
A nonstop flight from London to Hitachi takes about 12 h, for a straight-line distance of about 9,520 km. Most routes need a change of planes, which adds time.
When is typhoon season in Hitachi?
Hitachi lies in an area that Pacific typhoons can reach. The typhoon season runs from June to November, with most storms from August to October. A direct hit on any one place is rare, but if you travel then, keep an eye on weather warnings and book flexibly.
Which school holidays are best for Hitachi?
Hitachi has its best school-holiday weather during May half-term (score 71) and its weakest during the Christmas holidays (score 41). Holiday ratings (0–100): Easter holidays 60, May half-term 71, summer holidays 58, October half-term 64, Christmas holidays 41.