Nagasaki-shi (Nagasaki)
September
Weather in Nagasaki-shi for September 2026
Your guide to Nagasaki-shi weather in September - trends and predictions
In general, the average temperature in Nagasaki-shi at the beginning of September is 28.7 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 27.6 °C by the end of September.
The climate of Nagasaki-shi in September is notably wet, with an average of 11 rainy days, and a total of 79.8 mm of precipitation.
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Temperatures
Rain 🌧️
More
19
Dry days
11
Rainy days
0
Snow days
29°/25°
Temperatures
14 km/h
Avg max wind
76 %
Avg humidity
Nagasaki-shi Weather September
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Temperatures trend during September in Nagasaki-shi
See the weather trend as well as the moving average line
September weather in Nagasaki-shi day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Sunny | 29° /24° | 2.8 mm | 7 | |
| 2 Sept. | Sunny | 28° /25° | 5.6 mm | 7 | |
| 3 Sept. |  Patchy rain possible | 29° /24° | 0.5 mm | 7 | |
| 4 Sept. |  Patchy light drizzle | 28° /23° | 32.7 mm | 6 | |
| 5 Sept. | Patchy rain possible | 29° /25° | 0.3 mm | 7 | |
| 6 Sept. | Patchy rain possible | 29° /24° | 0 mm | 7 | |
| 7 Sept. |  Partly cloudy | 29° /25° | 1.8 mm | 7 | |
| 8 Sept. | Patchy rain possible | 30° /25° | 1.2 mm | 7 | |
| 9 Sept. | Sunny | 30° /25° | 2.8 mm | 7 | |
| 10 Sept. | Partly cloudy | 29° /25° | 8.1 mm | 7 | |
| 11 Sept. | Light rain shower | 30° /25° | 2.9 mm | 7 | |
| 12 Sept. | Patchy rain possible | 29° /25° | 4.5 mm | 7 | |
| 13 Sept. | Sunny | 29° /26° | 7.6 mm | 7 | |
| 14 Sept. | Patchy rain possible | 31° /26° | 5 mm | 7 | |
| 15 Sept. | Light rain shower | 31° /26° | 2.7 mm | 7 | |
| 16 Sept. | Light rain shower | 30° /26° | 2.1 mm | 7 | |
| 17 Sept. | Patchy rain possible | 30° /26° | 2.8 mm | 7 | |
| 18 Sept. | Light rain shower | 30° /25° | 7.6 mm | 7 | |
| 19 Sept. | Patchy rain possible | 30° /25° | 0.6 mm | 7 | |
| 20 Sept. | Light rain shower | 29° /25° | 11.7 mm | 7 | |
| 21 Sept. | Light rain shower | 28° /24° | 7.2 mm | 6 | |
| 22 Sept. |  Moderate or heavy rain shower | 26° /22° | 19.2 mm | 6 | |
| 23 Sept. |  Cloudy | 27° /22° | 0.1 mm | 6 | |
| 24 Sept. | Cloudy | 28° /22° | 5.3 mm | 6 | |
| 25 Sept. | Light rain shower | 27° /24° | 5.3 mm | 6 | |
| 26 Sept. | Sunny | 28° /23° | 0 mm | 7 | |
| 27 Sept. |  Overcast | 29° /23° | 0.1 mm | 6 | |
| 28 Sept. | Patchy rain possible | 28° /23° | 1.4 mm | 6 | |
| 29 Sept. | Sunny | 27° /22° | 2.2 mm | 7 | |
| 30 Sept. | Patchy rain possible | 26° /22° | 0.3 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for Nagasaki-shi in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Nagasaki-shi forecast closer to your planned date for the most up-to-date weather information.
Change Month
Nagasaki-shi weather in September vs August vs October
Compare September weather in Nagasaki-shi with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
| August | September | October | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Patchy rain possible |
| Temperatures | 30°/26° | 29°/25° | 24°/19° |
| Rainfall | 133 mm | 80 mm | 60 mm |
| Wind | 17.8 km/h | 13.6 km/h | 18.3 km/h |
| Humidity | 78% | 76% | 74% |
| Rainy days | 16 days | 11 days | 11 days |
| Dry days | 15 days | 19 days | 20 days |
Planning a trip to Nagasaki-shi? Discover the best time to visit
Nagasaki-shi in September - FAQ
What are the expected maximum and minimum temperatures in Nagasaki-shi during September?
During September, expect a variety of temperatures with highs around 29° and lows near 25°, suitable for diverse activities and preferences.
How much rainfall should be expected in Nagasaki-shi during September?
Moderate rainfall is anticipated in Nagasaki-shi during September, with a total of 79.8 mm spread over approximately 11 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Nagasaki-shi during September?
The average wind speed in Nagasaki-shi during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Nagasaki-shi in September?
As you prepare for your trip to Nagasaki-shi in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Nagasaki-shi, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Sandals/Flip-flops: Comfortable for warm climates
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
September rainfall patterns in Nagasaki-shi
Explore the daily rainfall trends and prepare for Nagasaki-shis September weather 💧
UV exposure in Nagasaki-shi during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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