September weather forecastKamakura, Japan

September

Weather in September

September, the first month of the autumn in Kamakura, is still a warm month, with an average temperature ranging between max 26.2°C (79.2°F) and min 21.7°C (71.1°F).

Temperature

A subtle change in temperatures is noted as August gives way to September, with average highs reducing from 29.8°C (85.6°F) to a still warm 26.2°C (79.2°F). A modest nighttime temperature average of 21.7°C (71.1°F) characterizes September in Kamakura.

Humidity

In Kamakura, the average relative humidity in September is 75%.

Rainfall

In September, in Kamakura, the rain falls for 11.1 days. Throughout September, 36mm (1.42") of precipitation is accumulated. In Kamakura, during the entire year, the rain falls for 129.4 days and collects up to 351mm (13.82") of precipitation.

Snowfall

In Kamakura, snow does not fall in April through December.

Sea temperature

In September, the average sea temperature is 25.9°C (78.6°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for swimming, diving, and other activities, ensuring comfort and enjoyment for lengthened periods.

Daylight

The average length of the day in September is 12h and 25min.
On the first day of the month, sunrise is at 05:14 and sunset at 18:09. On the last day of September, in Kamakura, sunrise is at 05:35 and sunset at 17:27 JST.

Sunshine

The average sunshine in September in Kamakura is 8.2h.

UV index

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 5 during September morphs into the following directions:
Heed the precautions - It is counselled to guard against solar damage. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be mindful! Sand and water reflections can up the Sun's UV exposure.

Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature and low-temperature during September are 26.2°C (79.2°F) and 21.7°C (71.1°F) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is calculated to be 36°C (96.8°F).

In Kamakura, Japan, the average relative humidity in September is 75%.

In September, in Kamakura, the rain falls for 11.1 days. Throughout September, 36mm (1.42") of precipitation is accumulated.

April through December are months without snowfall in Kamakura, Japan.

In Kamakura, Japan, in September, the average water temperature is 25.9°C (78.6°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

In September, the average day length in Kamakura is 12h and 25min.

In September, on the first day of the month, sunrise is at 05:14 and sunset at 18:09. On the last day of the month, in Kamakura, Japan, sunrise is at 05:35 and sunset at 17:27 JST.

The average sunshine duration in September in Kamakura is 8.2h.

In Kamakura, Japan, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

29.8°C

26.2°C

21.5°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

15.6km/h

15.4km/h

17.7km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

11.8

11.1

Average snowfall

0mm

Average snowfall days

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

13.6

15.5

17.6

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Kamakura, Japan

Average high temperature in September: 26.2°C

The warmest month (with the highest average high temperature) is August (29.8°C).
The month with the lowest average high temperature is January (9.3°C).

Average low temperature in September: 21.7°C

The month with the highest average low temperature is August (25.2°C).
The coldest month (with the lowest average low temperature) is January (3.9°C).

Average pressure in September
Kamakura, Japan

Average pressure in September: 1013.3mbar

The month with the highest atmospheric pressure is November (1018mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).

Average wind speed in September
Kamakura, Japan

Average wind speed in September: 14.7km/h

The windiest month (with the highest average wind speed) is March (17.4km/h).
The calmest month (with the lowest average wind speed) is June (13.9km/h).

Average humidity in September
Kamakura, Japan

Average humidity in September: 75%

The month with the highest relative humidity is July (79%).
The month with the lowest relative humidity is January (60%).

Average rainfall in September
Kamakura, Japan

Average rainfall in September: 36mm

The wettest month (with the highest rainfall) is July (51mm).
The driest month (with the least rainfall) is February (12mm).

Average rainfall days in September
Kamakura, Japan

Average rainfall days in September: 11.1 days

The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is December (6.1 days).

Average snowfall in September
Kamakura, Japan

Average snowfall in September: 0mm

The month with the highest snowfall is February (3mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).

Average snowfall days in September
Kamakura, Japan

Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average sea temperature in September
Kamakura, Japan

Average sea temperature in September: 25.9°C

The best month for swimming (with the highest average sea temperature) is August (26.2°C).
The coldest months (with the lowest average sea temperature) are February and March (16.2°C).

Average daylight in September /
Average sunshine in September
Kamakura, Japan

Average daylight in September: 12h and 24min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

Average sunshine in September: 8h and 12min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).

Average sunshine days in September
Kamakura, Japan

Average sunshine days in September: 15.5 days

The month with the most sunshine days is January (22.2 days).
The month with the least sunshine days is July (10.8 days).

Average UV index in September
Kamakura, Japan

Average UV index in September: 5

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).

Average cloud cover in September
Kamakura, Japan

Average cloud cover in September: 38

The months with the most cloud cover are March and October (Cloud cover 43).
The months with the least cloud cover are January and December (Cloud cover 29).

Average visibility in September
Kamakura, Japan

Average visibility in September: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).