AI-generatedChiba at a glance
- Best time
- Apr – Jun, Sep – Nov
- Warmest month
- Aug · 30°
- Warmest sea
- Aug · 26.2°
- Sunshine a year
- 1,970 h
- Rain a year
- 1,526 mm
- Climate
- Temperate
- Time zone
- UTC+9
- Elevation
- 5 m
Climate in Chiba
Chiba has a temperate climate with warm summers and cool winters. August is the warmest month with average highs of 30 °C, while January is the coolest at 9 °C. With around 1,970 hours of sunshine a year, Chiba is moderately sunny; August is the sunniest month with 6.3 hours a day.
Holiday weather through the year
Weather in October
Holiday weather in October
Good
Best time to visit: April – June, September – November
October is the peak of the typhoon season
Keep in mindFrequent rainStorm season
A typical day in October
- Morning, 08:00: about 18°
- Midday, 13:00: about 21°
- Afternoon, 16:00: about 20°
- Evening, 20:00: about 18°
- Night, 23:00: about 17°
05:4517:06
Pleasant evenings; a light layer can help.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 05:29–06:19 · evening 16:31–17:21
- Blue hour
- Morning 05:19–05:29 · evening 17:21–17:31
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.
What is the weather like in Chiba in October?
In October, Chiba is warm: daytime highs average 21 °C, and nights cool down to about 16 °C. The sea averages 21.7 °C – refreshing for a swim. Expect around 4 hours of sunshine a day. It rains often – on about 14 days, adding up to 208 mm. All in all, October is a good month for a holiday in Chiba.
More details for October
- Daylight
- 11 h 21 min05:45 – 17:06
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 5 daysdew point 18 °C or moreAll months
- Wind
- 19 km/haverage daily peakAll months
- Cloud cover
- 63 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+9Asia/Tokyo
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %22 %
- Few rainy daysweight 30 %28 %
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
Sea temperature in Chiba
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 20.6 – 22.7 °C
Swimming season: Jun – Oct
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Chiba ranges from 12.1 °C in February to 26.2 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to October.
From October 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 25.2 and 28.2 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 13.1° | 11.3° | 15.0° | cold |
| FebruaryFeb | 12.1° | 10.4° | 14.2° | cold |
| MarchMar | 12.9° | 11.6° | 14.7° | cold |
| AprilApr | 15.0° | 13.5° | 16.5° | cold |
| MayMay | 18.1° | 17.0° | 19.5° | fresh |
| JuneJun | 21.1° | 19.9° | 22.0° | refreshing |
| JulyJul | 23.9° | 22.1° | 26.3° | pleasant |
| AugustAug | 26.2° | 25.2° | 28.2° | warm |
| SeptemberSep | 25.0° | 23.7° | 26.6° | pleasant |
| OctoberOct | 21.7° | 20.6° | 22.7° | refreshing |
| NovemberNov | 18.6° | 17.4° | 20.3° | fresh |
| DecemberDec | 15.5° | 13.8° | 17.1° | cold |
Sunshine hours in Chiba
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 4.3 of 11.3 hours of daylight in Chiba, 38 % of the day.
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.
UV index in Chiba
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 11).
Minutes until sunburn in October
- Very fair skin
- about 25 min
- Fair skin
- about 35 min
- Light brown skin
- about 45 min
- Olive skin
- about 60 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen it, 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.
Rain in Chiba: 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, Chiba has about 14 rainy days with 208 mm of rain in total.
Wind and clouds in Chiba
How breezy and how cloudy Chiba 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 Chiba typically peaks at 19 km/h during the day: Beaufort 3, light 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: Dec – May.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 63 % of the sky over Chiba: variable cloud, with about 4.3 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 and humidity in Chiba
How often the day gets hot in Chiba (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, Chiba has about 0 hot days, with an average daytime high of 21 °C: some hot or muggy days. Single hot or muggy days are possible; a hat and water bottle are enough.
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
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Chiba
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°
- Hot 24° and more
- muggy month (10+ muggy days)
PleasantOctober: nights around 16°. Ideal for sleeping, often with the window open. Muggy on about 5 days (dew point 18 °C or more).
The coolest nights are in January (2°), the warmest in August (24°). 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) from May to June and in October. 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 105 days a year, mostly from June 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 | 36 | 9° | 2° | 13.1° | 6.1 h | 8 | 77 |
| FebruaryFeb | 36 | 10° | 2° | 12.1° | 5.8 h | 9 | 79 |
| MarchMar | 45 | 13° | 6° | 12.9° | 5.6 h | 13 | 129 |
| AprilApr | 70 | 18° | 10° | 15.0° | 6.1 h | 12 | 123 |
| MayMay | 74 | 22° | 15° | 18.1° | 6.0 h | 12 | 132 |
| JuneJun | 65 | 25° | 19° | 21.1° | 4.4 h | 13 | 169 |
| JulyJul | 59 | 29° | 23° | 23.9° | 5.3 h | 13 | 140 |
| AugustAug | 56 | 30° | 24° | 26.2° | 6.3 h | 12 | 106 |
| SeptemberSep | 63 | 27° | 21° | 25.0° | 4.6 h | 14 | 170 |
| OctoberOct | 63 | 21° | 16° | 21.7° | 4.3 h | 14 | 208 |
| NovemberNov | 61 | 16° | 10° | 18.6° | 4.8 h | 11 | 116 |
| DecemberDec | 44 | 11° | 5° | 15.5° | 5.4 h | 8 | 78 |
Climate averages 1996–2025, 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
35.60° N, 140.12° E · 5 m · Asia/Tokyo
Best time to visit Chiba
The best time to visit Chiba is from April to June and from September to November. For a beach holiday with the sea above 21 °C, go in August. For sightseeing, day trips and hiking, conditions are most comfortable in May and in November. Rain is most frequent from March to April and from June to October; the wettest month is October with 208 mm.
Chiba through the seasons
How the weather changes over the seasons, with averages for each.
Chiba in spring
Mar – May
Good
- 13–22 °C by day
- Sea 15 °C
- 6 h of sun a day
- 37 rainy days in all
Chiba in summer
Jun – Aug
Good
- 25–30 °C by day
- Sea 24 °C
- 5 h of sun a day
- 38 rainy days in all
Chiba in autumn
Sep – Nov
Good
- 16–27 °C by day
- Sea 22 °C
- 5 h of sun a day
- 40 rainy days in all
Chiba in winter
Dec – Feb
Poor
- 9–11 °C by day
- Sea 14 °C
- 6 h of sun a day
- 25 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in Chiba for you.
Your best months: May – June
Based on the climate averages; tap a month to see its details.
Compare two months in Chiba
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 Chiba: score 74 against 63. In May, days are 1 °C warmer than in October. The sea is 4 °C cooler in May. May has 2 fewer rainy days. The sun shines 2 hours longer a day in May.
| Month | October | May |
|---|---|---|
| Weather score | 63 | 74better |
| Day high | 21° | 22° |
| Night low | 16° | 15° |
| Sea | 21.7° | 18.1° |
| Sunshine | 4.3 h | 6.0 hbetter |
| Rainy days | 14 | 12better |
| Rainfall | 208 mm | 132 mmbetter |
| Muggy days | 5 | 2better |
Based on the climate averages 1996–2025.
Which month for what?
Beach & swimming
Aug
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
May, Nov
15–28 °C and not too much rain
Rainy months
Mar – Apr, Jun – Oct
12 or more rainy days
Chiba month by month
The typical weather for every month at a glance.
36January9° · Sea 13° · 6 h
In January, Chiba is cold: daytime highs average 9 °C, and nights cool down to about 2 °C. The sea averages 13.1 °C – swimming is only for the hardy. Expect around 6 hours of sunshine a day. Rain falls on about 8 days, adding up to 77 mm. All in all, January is not an ideal month for a holiday in Chiba.
Chiba in January36February10° · Sea 12° · 6 h
In February, Chiba is cold: daytime highs average 10 °C, and nights cool down to about 2 °C. The sea averages 12.1 °C – swimming is only for the hardy. Expect around 6 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 79 mm in total. All in all, February is not an ideal month for a holiday in Chiba.
Chiba in February45March13° · Sea 13° · 6 h
In March, Chiba is cool: daytime highs average 13 °C, and nights cool down to about 6 °C. The sea averages 12.9 °C – swimming is only for the hardy. Expect around 6 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 129 mm in total. All in all, March is a so-so month for a holiday in Chiba.
Chiba in March70April18° · Sea 15° · 6 h
In April, Chiba is mild: daytime highs average 18 °C, and nights cool down to about 10 °C. The sea averages 15.0 °C – swimming is only for the hardy. Expect around 6 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 123 mm in total. All in all, April is a good month for a holiday in Chiba.
Chiba in April74May22° · Sea 18° · 6 h
In May, Chiba is warm: daytime highs average 22 °C, and nights cool down to about 15 °C. The sea averages 18.1 °C – bracing, so a wetsuit helps for longer swims. Expect around 6 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 132 mm in total. All in all, May is a good month for a holiday in Chiba.
Chiba in May65June25° · Sea 21° · 4 h
In June, Chiba is warm: daytime highs average 25 °C, and nights cool down to about 19 °C. The sea averages 21.1 °C – refreshing for a swim. Expect around 4 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 169 mm in total. The air is often humid and muggy. All in all, June is a good month for a holiday in Chiba.
Chiba in June59July29° · Sea 24° · 5 h
In July, Chiba is hot: daytime highs average 29 °C, and even at night it stays warm at around 23 °C. The sea averages 23.9 °C – pleasant for swimming. Expect around 5 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 140 mm in total. On about 10 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 Chiba.
Chiba in July56August30° · Sea 26° · 6 h
In August, Chiba is hot: daytime highs average 30 °C, and even at night it stays warm at around 24 °C. The sea averages 26.2 °C – lovely and warm for swimming. Expect around 6 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 106 mm in total. On about 16 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 Chiba.
Chiba in August63September27° · Sea 25° · 5 h
In September, Chiba is warm: daytime highs average 27 °C, and even at night it stays warm at around 21 °C. The sea averages 25.0 °C – pleasant for swimming. Expect around 5 hours of sunshine a day. It rains often – on about 14 days, adding up to 170 mm. The air is often humid and muggy. All in all, September is a good month for a holiday in Chiba.
Chiba in September63October21° · Sea 22° · 4 h
In October, Chiba is warm: daytime highs average 21 °C, and nights cool down to about 16 °C. The sea averages 21.7 °C – refreshing for a swim. Expect around 4 hours of sunshine a day. It rains often – on about 14 days, adding up to 208 mm. All in all, October is a good month for a holiday in Chiba.
Chiba in October61November16° · Sea 19° · 5 h
In November, Chiba is mild: daytime highs average 16 °C, and nights cool down to about 10 °C. The sea averages 18.6 °C – bracing, so a wetsuit helps for longer swims. Expect around 5 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 116 mm in total. All in all, November is a good month for a holiday in Chiba.
Chiba in November44December11° · Sea 16° · 5 h
In December, Chiba is cool: daytime highs average 11 °C, and nights cool down to about 5 °C. The sea averages 15.5 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. Rain falls on about 8 days, adding up to 78 mm. All in all, December is a so-so month for a holiday in Chiba.
Chiba in DecemberChiba compared
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Chiba vs. Minato
In October the holiday weather in Chiba and Minato is about equally good (score 63 vs. 65). During the day it is about as warm in Minato as in Chiba. The sea is about equally warm.
| in October | Chiba | Minato |
|---|---|---|
| Holiday score | 63 | 65 |
| Daytime high | 21° | 21° |
| Sea | 22° | 22° |
| Sunshine | 4 h | 4 h |
| Rainy days | 14 | 13 |
| Best time | Apr – Jun, Sep – Nov | Apr – Jun, Sep – Nov |
Through the year
Japan in October: the best places
In October, Chiba ranks 23 among the 31 nearest destinations in this country.
- Hiroshima22°23°81
- 2Fukuoka22°23°81
- 3Nagasaki23°24°81
- 4Kumamoto23°23°80
- 5Kitakyūshū22°23°79
- 6Okayama22°24°78
- 7Kagoshima24°26°77
- 8Nagoya22°75
- 23ChibaThis page21°22°63
Planning a trip to Chiba
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Chiba 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.
Chiba has its best school-holiday weather during May half-term (score 72) and its weakest during the Christmas holidays (score 40).
- 63
Easter holidays
Mar – Apr
Good
- 16 °C by day
- Sea 14 °C
- 5.9 h of sun a day
- 13 rainy days a month
Keep in mind: Frequent rain
- 72
May half-term
May – Jun
GoodBest holidays
- 22 °C by day
- Sea 19 °C
- 5.7 h of sun a day
- 12 rainy days a month
Good for: Sightseeing & walks
- 57
Summer holidays
Jul – Aug
Fair
- 29 °C by day
- Sea 25 °C
- 5.9 h of sun a day
- 12 rainy days a month
Keep in mind: Frequent rain, Storm season
- 63
October half-term
Oct
Good
- 21 °C by day
- Sea 22 °C
- 4.3 h of sun a day
- 14 rainy days a month
Keep in mind: Frequent rain, Storm season
- 40
Christmas holidays
Dec – Jan
Fair
- 10 °C by day
- Sea 14 °C
- 5.8 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 5 min
- Distance
- 9,600 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.
Storm season
Chiba 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); not a forecast.
Frequently asked questions about Chiba
When is the best time to visit Chiba?
The best time to visit Chiba 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 Chiba?
The sea temperature in Chiba ranges from 12.1 °C in February to 26.2 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to October.
Can you swim in Chiba in October?
Yes. In October the sea averages 21.7 °C – refreshing for a swim.
What is the warmest month in Chiba?
August is the warmest month, with average highs of 30 °C and nights around 24 °C. January is the coolest month at 9 °C.
When does it rain most in Chiba?
Rain is most frequent from March to April and from June to October; the wettest month is October with 208 mm. The driest month is January with 77 mm.
How many hours of sunshine does Chiba get?
Chiba gets around 1,970 hours of sunshine a year. The sunniest month is August with 6.3 hours a day; in October there are 4.3 hours a day.
What time zone is Chiba in?
Chiba uses the time zone Asia/Tokyo, at UTC+9 all year.
How long is the flight from London to Chiba?
A nonstop flight from London to Chiba takes about 12 h 5 min, for a straight-line distance of about 9,600 km. Most routes need a change of planes, which adds time.
When is typhoon season in Chiba?
Chiba 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 Chiba?
Chiba has its best school-holiday weather during May half-term (score 72) and its weakest during the Christmas holidays (score 40). Holiday ratings (0–100): Easter holidays 63, May half-term 72, Summer holidays 57, October half-term 63, Christmas holidays 40.
Near Chiba
Other destinations close by.
Places with a climate like Chiba
Destinations whose weather through the year is closest to Chiba's – good alternatives.