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Kai Weather in September

Kai in September averages 24°C (75°F) during the day and 15°C (59°F) at night. This is the wettest month of the year, and part of the summer season.

Rainfall in Kai in September

With the year's heaviest rain occurring this month, it's best to be equipped with a poncho to handle the frequent downpours. Typically, about 19 days will experience rainfall, with an average of 232 mm (9.1 in) for the month. This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.

Temperature in Kai in September

In September, Kai gets high temperatures, with highs of 24°C (75°F). Nights cool to around 15°C (59°F). The summer season is characteristic of September. Overall, the month follows a fairly predictable daily temperature pattern. Nights cool down to 15°C (59°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Kai in September

You can expect a moderate amount of sunlight, with approximately 142 hours. This means a pleasant mix of sun and overcast.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. May and August typically offer the best weather for Kai.

Kai Temperature in September

Min Temperature
15°C (59°F)
Max Temperature
24°C (75°F)
Chance of Rain
62%
Precipitation
232 mm (9.1 in)
Rainy days
19 days
Humidity
72% *
Sunshine
142 hours *
Percentage Sunshine
*
* Data from: Kofu, Japan (6 KM, 4 Miles).

Kai Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Kai - and find the best time to visit.

Best Places in Japan in September

Find out more about the weather in Japan and which places have the best travel conditions in this month. See all of Japan in September →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Kai in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Kai in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    7/10
  • Camping
    6/10

Kai 3-Day Forecast

More climate data for Kai

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.