AI-generatedAtami at a glance
- Best time
- Jul – Sep
- Warmest month
- Aug · 30°
- Warmest sea
- Aug · 26.4°
- Sunshine a year
- 2,060 h
- Rain a year
- 2,076 mm
- Climate
- Temperate
- Time zone
- UTC+9
- Elevation
- 230 m
Climate in Atami
Atami 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 2,060 hours of sunshine a year, Atami is moderately sunny; August is the sunniest month with 6.3 hours a day.
Holiday weather through the year
Best time to visit Atami
The best time to visit Atami is from July to September. In August and September, though, the typhoon season is at its peak: check the forecast before you go. The sea reaches 26.4 °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 from March to June and in October; the wettest month is June with 252 mm.
Atami through the seasons
How the weather changes over the seasons, with averages for each.
Atami in spring
Mar – May
Poor
- 13–22 °C by day
- Sea 17 °C
- 6.0 h of sun a day
- 39 rainy days in all
Atami in summer
Jun – Aug
Good
- 25–30 °C by day
- Sea 24 °C
- 5.5 h of sun a day
- 47 rainy days in all
Atami in autumn
Sep – Nov
Fair
- 16–26 °C by day
- Sea 23 °C
- 5.0 h of sun a day
- 39 rainy days in all
Atami in winter
Dec – Feb
Poor
- 9–12 °C by day
- Sea 17 °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 – Jun, Oct
Rainy season or more than 12 rainy days
Find your perfect month
Tell us what you like and we rate every month in Atami for you.
Your best months: July – September
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Fair
Best time to visit: July – September
October is the peak of the typhoon season Hurricane season
Where to go in OctoberSea temperature in October
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°
05:4917:10
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 05:33–06:23 · evening 16:36–17:26
- Blue hour
- Morning 05:23–05:33 · evening 17:26–17:36
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 Atami compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs fall from about 24° at the start of the month to 19° at the end. The sea cools from 24° to 22°. The days get 1.0 h shorter.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 24° | 19° |
| Night-time low | 17° | 12° |
| Sea | 24° | 22° |
| Daylight | 11.9 h | 10.8 h |
What is the weather like in Atami in October?
In October, Atami is warm: daytime highs average 21 °C, and nights cool down to about 15 °C. The sea averages 23.3 °C – pleasant for swimming. Expect around 4.7 hours of sunshine a day. Rain is frequent, with about 14 rainy days and 232 mm in total. All in all, October is a so-so month for a holiday in Atami.
More details for October
- Daylight
- 11 h 22 min05:49 – 17:10
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 4 daysdew point 18 °C or moreAll months
- Wind
- 15 km/haverage daily peakAll months
- Cloud cover
- 60 %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 35 %38 %
- Seaweight 25 %90 %
- Sunshineweight 20 %28 %
- Few rainy daysweight 20 %32 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in October
- Swimwear
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Compare two months in Atami
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
August has the better holiday weather in Atami: score 75 against 48. In August, days are 9 °C warmer than in October. The sea is 3 °C warmer in August. August has one more rainy day. The sun shines 2 hours longer a day in August.
| Month | October | August |
|---|---|---|
| Holiday weather score | 48 | 75better |
| Daytime high | 21° | 30° |
| Night-time low | 15° | 23° |
| Sea | 23.3° | 26.4° |
| Sunshine | 4.7 h | 6.3 hbetter |
| Rainy days | 14better | 15 |
| Rainfall | 232 mm | 171 mmbetter |
| Muggy days | 4better | 30 |
Based on the climate averages 1996–2025.
Atami month by month
The typical weather for every month at a glance.
26January9° · Sea 16° · 6.1 h
In January, Atami is cold: daytime highs average 9 °C, and nights cool down to about 3 °C. The sea averages 16.4 °C – swimming is only for the hardy. Expect around 6.1 hours of sunshine a day. Rain falls on about 7 days, adding up to 84 mm. All in all, January is not an ideal month for a holiday in Atami.
Atami in January23February10° · Sea 16° · 6.0 h
In February, Atami is cool: daytime highs average 10 °C, and nights cool down to about 3 °C. The sea averages 15.5 °C – swimming is only for the hardy. Expect around 6.0 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 106 mm in total. All in all, February is not an ideal month for a holiday in Atami.
Atami in February16March13° · Sea 16° · 5.8 h
In March, Atami is cool: daytime highs average 13 °C, and nights cool down to about 5 °C. The sea averages 15.7 °C – swimming is only for the hardy. Expect around 5.8 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 179 mm in total. All in all, March is not an ideal month for a holiday in Atami.
Atami in March18April18° · Sea 17° · 6.1 h
In April, Atami is mild: daytime highs average 18 °C, and nights cool down to about 9 °C. The sea averages 16.9 °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 179 mm in total. All in all, April is not an ideal month for a holiday in Atami.
Atami in April45May22° · Sea 19° · 6.2 h
In May, Atami is warm: daytime highs average 22 °C, and nights cool down to about 14 °C. The sea averages 19.1 °C – bracing, so a wetsuit helps for longer swims. Expect around 6.2 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 199 mm in total. All in all, May is a so-so month for a holiday in Atami.
Atami in May57June25° · Sea 22° · 4.6 h
In June, Atami is warm: daytime highs average 25 °C, and nights cool down to about 18 °C. The sea averages 21.6 °C – refreshing for a swim. Expect around 4.6 hours of sunshine a day. It rains often – on about 16 days, adding up to 252 mm. All in all, June is a so-so month for a holiday in Atami.
Atami in June72July29° · Sea 24° · 5.5 h
In July, Atami is hot: daytime highs average 29 °C, and even at night it stays warm at around 22 °C. The sea averages 24.3 °C – pleasant for swimming. Expect around 5.5 hours of sunshine a day. It rains often – on about 15 days, adding up to 232 mm. 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 good month for a holiday in Atami.
Atami in July75August30° · Sea 26° · 6.3 h
In August, Atami is hot: daytime highs average 30 °C, and even at night it stays warm at around 23 °C. The sea averages 26.4 °C – lovely and warm for swimming. Expect around 6.3 hours of sunshine a day. It rains often – on about 15 days, adding up to 171 mm. On about 15 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is a good month for a holiday in Atami.
Atami in August71September26° · Sea 26° · 5.0 h
In September, Atami is warm: daytime highs average 26 °C, and even at night it stays warm at around 20 °C. The sea averages 25.7 °C – pleasant for swimming. Expect around 5.0 hours of sunshine a day. It rains often – on about 15 days, adding up to 222 mm. The air is often humid and muggy. All in all, September is a good month for a holiday in Atami.
Atami in September48October21° · Sea 23° · 4.7 h
In October, Atami is warm: daytime highs average 21 °C, and nights cool down to about 15 °C. The sea averages 23.3 °C – pleasant for swimming. Expect around 4.7 hours of sunshine a day. Rain is frequent, with about 14 rainy days and 232 mm in total. All in all, October is a so-so month for a holiday in Atami.
Atami in October33November16° · Sea 21° · 5.3 h
In November, Atami is mild: daytime highs average 16 °C, and nights cool down to about 10 °C. The sea averages 21.0 °C – refreshing for a swim. Expect around 5.3 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 139 mm in total. All in all, November is not an ideal month for a holiday in Atami.
Atami in November30December12° · Sea 18° · 5.9 h
In December, Atami is cool: daytime highs average 12 °C, and nights cool down to about 5 °C. The sea averages 18.4 °C – bracing, so a wetsuit helps for longer swims. Expect around 5.9 hours of sunshine a day. Rain falls on about 8 days, adding up to 83 mm. All in all, December is not an ideal month for a holiday in Atami.
Atami in DecemberClimate in detail
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Atami
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)
PleasantOctober: nights around 15°. Ideal for sleeping, often with the window open. Muggy on about 4 days (dew point 18 °C or more).
The coolest nights are in January (3°), 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 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 100 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 | 26 | 9° | 3° | 16.4° | 6.1 h | 7 | 84 |
| FebruaryFeb | 23 | 10° | 3° | 15.5° | 6.0 h | 9 | 106 |
| MarchMar | 16 | 13° | 5° | 15.7° | 5.8 h | 13 | 179 |
| AprilApr | 18 | 18° | 9° | 16.9° | 6.1 h | 13 | 179 |
| MayMay | 45 | 22° | 14° | 19.1° | 6.2 h | 13 | 199 |
| JuneJun | 57 | 25° | 18° | 21.6° | 4.6 h | 16 | 252 |
| JulyJul | 72 | 29° | 22° | 24.3° | 5.5 h | 15 | 232 |
| AugustAug | 75 | 30° | 23° | 26.4° | 6.3 h | 15 | 171 |
| SeptemberSep | 71 | 26° | 20° | 25.7° | 5.0 h | 15 | 222 |
| OctoberOct | 48 | 21° | 15° | 23.3° | 4.7 h | 14 | 232 |
| NovemberNov | 33 | 16° | 10° | 21.0° | 5.3 h | 11 | 139 |
| DecemberDec | 30 | 12° | 5° | 18.4° | 5.9 h | 8 | 83 |
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
35.09° N, 139.05° E · 230 m · Asia/Tokyo
Sea temperature in Atami
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 22.1 – 24.3 °C
Swimming season: Jun – Nov
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Atami ranges from 15.5 °C in February to 26.4 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to November.
From October 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 25.4 and 27.0 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 16.4° | 15.5° | 17.8° | cold |
| FebruaryFeb | 15.5° | 14.5° | 16.7° | cold |
| MarchMar | 15.7° | 14.4° | 16.7° | cold |
| AprilApr | 16.9° | 15.7° | 18.1° | cold |
| MayMay | 19.1° | 18.2° | 20.0° | fresh |
| JuneJun | 21.6° | 20.7° | 22.4° | refreshing |
| JulyJul | 24.3° | 23.4° | 25.5° | pleasant |
| AugustAug | 26.4° | 25.4° | 27.0° | warm |
| SeptemberSep | 25.7° | 24.5° | 26.6° | pleasant |
| OctoberOct | 23.3° | 22.1° | 24.3° | pleasant |
| NovemberNov | 21.0° | 19.9° | 22.0° | refreshing |
| DecemberDec | 18.4° | 17.4° | 19.6° | fresh |
Sunshine hours in Atami
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 4.7 of 11.4 hours of daylight in Atami, 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 in Atami: 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, Atami has about 14 rainy days with 232 mm of rain in total.
UV index in Atami
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 30 min
- Light brown skin
- about 45 min
- Olive skin
- about 55 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 and clouds in Atami
How breezy and how cloudy Atami 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 Atami typically peaks at 15 km/h during the day: Beaufort 3, gentle breeze.
Breezy months for windsurfing and kiting
The daily breeze rarely reaches Beaufort 4 (20 km/h), so wind sports depend on single windy days.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 60 % of the sky over Atami: variable cloud, with about 4.7 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 Atami
How often the day gets hot in Atami (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, Atami 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 Atami
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Atami 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.
Atami has its best school-holiday weather during the summer holidays (score 74) and its weakest during the Easter holidays (score 17).
- 17
Easter holidays
Mar – Apr
Poor
- 17 °C by day
- Sea 17 °C
- 6.0 h of sun a day
- 13 rainy days a month
Keep in mind: Frequent rain
- 47
May half-term
May – Jun
Fair
- 23 °C by day
- Sea 20 °C
- 5.9 h of sun a day
- 13 rainy days a month
Keep in mind: Frequent rain
- 74
Summer holidays
Jul – Aug
GoodBest holidays
- 29 °C by day
- Sea 26 °C
- 6.0 h of sun a day
- 15 rainy days a month
Keep in mind: Storm season
- 48
October half-term
Oct
Fair
- 21 °C by day
- Sea 23 °C
- 4.7 h of sun a day
- 14 rainy days a month
Keep in mind: Frequent rain, Storm season
- 28
Christmas holidays
Dec – Jan
Poor
- 11 °C by day
- Sea 17 °C
- 6.0 h of sun a day
- 7 rainy days a month
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 12 h 5 min
- Distance
- 9,610 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
Atami 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
Atami compared
Put Atami side by side with another destination.
Atami vs Hakone
In October Atami has the better holiday weather (score 48 vs 8). During the day Hakone is 2 °C cooler than Atami. Hakone gets one hour less sunshine a day.
| in October | Atami | Hakone |
|---|---|---|
| Holiday weather score | 48 | 8 |
| Daytime high | 21° | 19° |
| Sea | 23° | no sea nearby |
| Sunshine | 5 h | 4 h |
| Rainy days | 14 | 15 |
| Best time | Jul – Sep | Apr – May, Oct |
Through the year
Japan in October: the best places
In October, Atami ranks 31 among the 31 nearest destinations in this country.
- Toyota24°75
- 2Nagoya24°75
- 3Gifu23°74
- 4Suzuka23°23°74
- 5Toyohashi24°24°72
- 6Hamamatsu24°24°68
- 7Kamakura22°23°65
- 8Yokosuka23°23°65
- 31AtamiThis page21°23°48
Near Atami
Other destinations close by.
Places with a climate like Atami
Destinations whose weather through the year is closest to Atami's – good alternatives.
Frequently asked questions about Atami
When is the best time to visit Atami?
The best time to visit Atami is from July to September. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Atami?
The sea temperature in Atami ranges from 15.5 °C in February to 26.4 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to November.
Can you swim in Atami in October?
Yes. In October the sea averages 23.3 °C – pleasant for swimming.
What is the warmest month in Atami?
August is the warmest month, with average highs of 30 °C and nights around 23 °C. January is the coolest month at 9 °C.
When does it rain most in Atami?
Rain is frequent from March to June and in October; the wettest month is June with 252 mm. The driest month is December with 83 mm.
How many hours of sunshine does Atami get?
Atami gets around 2,060 hours of sunshine a year. The sunniest month is August with 6.3 hours a day; in June there are 4.6 hours a day.
What time zone is Atami in?
Atami is on UTC+9 all year.
How long is the flight from London to Atami?
A nonstop flight from London to Atami takes about 12 h 5 min, for a straight-line distance of about 9,610 km. Most routes need a change of planes, which adds time.
When is typhoon season in Atami?
Atami 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 Atami?
Atami has its best school-holiday weather during the summer holidays (score 74) and its weakest during the Easter holidays (score 17). Holiday ratings (0–100): Easter holidays 17, May half-term 47, summer holidays 74, October half-term 48, Christmas holidays 28.