Nagasaki Weather: September
 |
Average Day Temperature: | 86.6°F |
|
Average Night Temperature: | 77.5°F |
|
Sea Water Temperature: | 83.7°F |
|
Number of Sunny Days: | 11 days |
| Sunshine Hours: | 11.9 - 12.8 hours | |
|
Number of Rainy Days: | 8 days |
| Precipitation Totals: | 6.2 in | |
| detailed information | ||
forecast
| Nagasaki |
Temperature
| Nagasaki |
Air Temperature in September, °F
The highest day temperature in September 2025 was 92°F. The lowest night temperature was 74°F. The average values for day and night temperatures during September were 86.7°F и 80.8°F respectivly.
Nagasaki Water Sea Temperature in September, °F
The average sea surface temperature in September 2025 for Nagasaki was 87.7°F. The maximum and minimum values were 85.4°F and 89.2°F respectively.
You can expect various weather conditions during September. Be ready for sunny, cloudy or even gloomy days.
Precipitation Totals in September, in
Precipitation total in September for Nagasaki is 6.2 in.
The average wind speed in September is 7.9 mph. It makes September one of the most windless months of the year for Nagasaki.
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Nagasaki in September is 7.5 hours.
Nagasaki on the Weather Map
| Atami |  |
+44 |
| Fukuoka |  |
+44 |
| Hakone |  |
+48 |
| Hiroshima | |
+38 |
| Kamakura | |
+54 |
| Kobe | |
+46 |
| Kyoto |  |
+42 |
| Nagasaki | |
+44 |
| Nagoya | |
+44 |
| Nara | |
+44 |
| Okinawa | |
+66 |
| Osaka | |
+46 |
| Sapporo |  |
+26 |
| Tokyo | |
+50 |
| Yokohama | |
+52 |
| 1800 |  |
44°F | S 8 mph |
| 2100 | |
42°F | S 5 mph |
| 0000 | |
42°F | S 2 mph |
| 0300 | |
42°F | SE 2 mph |
| 0600 | |
42°F | S 4 mph |
| 0900 |  |
46°F | W 3 mph |
| 1200 | |
52°F | N 4 mph |
| 1500 | |
54°F | NE 5 mph |