Planning a trip to Tokyo in September? You are in luck! The weather is generally good, with an average maximum temperature of +27°C and approximately 2 sunny days. Just be prepared for some rain, as there are usually around 18 rainy days and 233 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flightsin one click on Avionero.
Average weather
☀️
+27°C
Avg. max. temperature
+12°C
Min.
+37°C
Max.
233 mm
Total precipitation
74%
Avg. humidity
4 m/s
Avg. wind
2 ☀️
Sunny Days
8 ⛅️
Cloudy
18 🌦
Rainy
Our opinion: Tokyo has good weather in September.
Average temperature in Tokyo in September
Here are the expected maximum, average and minimum temperatures in Tokyo for September based on the historical data.
Last Year
Historical Data
Going from a maximum of +36°C during the day to a minimum of +19°C during the night, the temperature in September averages around +31°C.
The average maximum temperature goes down 35% by the end of the month, compared with the beginning of the month, from +34°C to +28°C.
Is Tokyo warm or cold in September?
Tokyo is typically warm in September.
Maximum temperatures go down compared to the previous month from +31°C to +27°C. The minimum temperature also goes down from +25°C to +21°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
September is one of the warmest months in Tokyo, here is the comparison with other months:
Water temperature in Tokyo in September
Water in Tokyo in September is Warm. It varies from +23°C to +27°C, with an average of +25°C.This is almost similar to the air temperature, which averages +27°C.
The water temperature in September is one of the warmest of the entire year:
The warmest water temperatures in Tokyo are reached in August, when the average sea temperature rises to +26°C. The coldest water temperatures are in February, with an average of +14°C.
Can you swim in Tokyo in September?
You can absolutely swim in Tokyo in September, the water is warm (+25°C in average), similar to heated pools. Suitable for most people, including children and the elderly.
🦭
Cold
Below +16°C
🏄♂️
Fresh
16°C - 21°C
🏊
Comfortable
21°C - 25°C
👙
Warm
25°C - 28°C
🔥
Very warm
+28°C and up
Bring your swimming suit, sunscreen and your favorite inflatable pink flamingo.
Travel to Tokyo
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✈️
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Flights per week
£1,356
Avg. Min Price
£1,356
Avg. Max Price
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Climate in Tokyo in September
Tokyo weather looks like this, on average, in September and the surrounding months.
August
September
October
Avg. temperature
+31°C
+27°C
+22°C
Min. temperature
+17°C
+12°C
+4°C
Max. temperature
+38°C
+37°C
+31°C
Rainfall
165 mm
233 mm
233 mm
Wind
4 m/s
4 m/s
4 m/s
Avg. water temperature
+26°C
+25°C
+22°C
Humidity
74%
74%
68%
Air pressure
1008 HPa
1012 HPa
1015 HPa
Sunny days
2
2
4
Cloudy days
9
8
9
Rainy days
17
18
17
Snowy days
0
0
0
September weather is still as good as in August.It’s getting colder in September. From +31°C in the day, the average maximum temperature lowers to +27°C.Prepare for more rain. Average rainfall goes from 165 mm to 233 mm.Humidity levels don’t change as the month goes on, averaging around 74%.The average wind speed doesn’t change much during September, staying around 4 m/s.The amount of sunny days stay about the same, averaging 2 sunny days during the month.
Next month (October) brings a further decline in the weather.
Wind speed in Tokyo in September based on historical data.
Last Year
Historical Data
The average wind speed is 5 m/s getting up to 8 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Tokyo is gradually decreasing during September, going from 7 m/s to 5 m/s over the course of the month.
Rain
Amount of rainfall in mm during September in Tokyo based on historical data.
Last Year
Historical Data
Typically, there is a 50% chance of rain on an average day in September, with total rainfall of approximately 326 mm. The maximum amount of rainfall per day is around 108 mm, which is considered heavy rain.September is a pretty wet month with over 15 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
September is one of the rainiest months in Tokyo, here is a comparison with other months, total mm:
Tokyo wettest month is October, where a typical day has a 55% chance of precipitation and 233 mm of rainfall per day. January, on the other hand, is the driest month with a mere 32% chance of precipitation and 69 mm of rainfall per day.
How was the weather last September in Tokyo?
This is the weather in Tokyo in September 2023:
1 September
☀️
+34°C
2 September
☁️
+36°C
3 September
☁️
+35°C
4 September
🌧️
+31°C
5 September
☀️
+36°C
6 September
☁️
+32°C
7 September
☁️
+31°C
8 September
🌧️
+23°C
9 September
☀️
+29°C
10 September
☁️
+33°C
11 September
☁️
+32°C
12 September
☀️
+33°C
13 September
☀️
+34°C
14 September
☁️
+34°C
15 September
☁️
+34°C
16 September
☁️
+32°C
17 September
☀️
+33°C
18 September
☀️
+33°C
19 September
☀️
+34°C
20 September
☁️
+33°C
21 September
🌧️
+29°C
22 September
🌧️
+30°C
23 September
☁️
+25°C
24 September
☁️
+27°C
25 September
☁️
+28°C
26 September
☁️
+30°C
27 September
☁️
+29°C
28 September
☀️
+34°C
29 September
☁️
+29°C
30 September
☁️
+28°C
In September 2023 Tokyo had 9 sunny days, 17 cloudy days, and 4 rainy days. The average maximum temperature was +31°C, with an absolute maximum of +36°C and a minimum of +23°C. The average humidity was 81%, with a maximum of 100% and a minimum of 46%. The average wind speed was 5 m/s, with a maximum of 19 m/s and a minimum of 0 m/s.
Are you planning a trip in September?
Climate Change over Years
This is how Tokyo climate have been changing during last 43 years period.
The climate in Tokyo in September has not changed much over the last 43 years.
The average temperature was the lowest in 1984 (+18°C) and the highest in 2023 (+22°C). The driest year was 1984 with only 896 mm of rainfall, and the wettest year was 2021 with 5634 mm.
FAQ
Frequently asked questions about the weather in Tokyo in September:
Is September a good time to visit Tokyo?
September is a really good time to go to Tokyo. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit Tokyo.
Can you sunbathe in Tokyo in September?
September is warm in Tokyo. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.
Can you swim in Tokyo in September?
Yes, you can swim in Tokyo in September, the water temperature averaging at +25°C. This temperature is considered warm and comfortable for most swimmers.
Is Tokyo rainy in September?
Tokyo is often rainy in September. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Tokyo in September?
Usually, it’s not very sunny in Tokyo in September, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
How much does it cost to fly to Tokyo in September?
The normal prices to fly to Tokyo is £1,356 - £1,356. It means that the majority of our users have picked flights in this range. To find the best price we recommend you search early, using our flexible dates feature.
For this page, we’ve looked at the typical weather in Tokyo, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
