Weather in Hiroshima-shi for September 2026
- In general, the average temperature in Hiroshima-shi at the beginning of September is 28.6 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 26.1 °C by the end of September. 
- Hiroshima-shi experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 146.4 mm. 
- Is September a good time to visit Hiroshima-shi? check out the best time to travel to Hiroshima-shi page. 
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Hiroshima-shi Weather September
Temperatures trend during September in Hiroshima-shi
September weather in Hiroshima-shi day by day
| Date | Weather | Temperatures | Rain | UV | More | 
|---|---|---|---|---|---|
| 1 Sept. | Light rain shower | 28° /22° | 4.8 mm | 6 | |
| 2 Sept. | Moderate or heavy rain shower | 28° /21° | 8.1 mm | 6 | |
| 3 Sept. | Patchy rain possible | 29° /21° | 15 mm | 7 | |
| 4 Sept. | Patchy rain possible | 28° /21° | 8.9 mm | 6 | |
| 5 Sept. | Patchy rain possible | 29° /21° | 4.9 mm | 6 | |
| 6 Sept. | Patchy rain possible | 29° /21° | 5.1 mm | 6 | |
| 7 Sept. | Cloudy | 29° /20° | 0.1 mm | 6 | |
| 8 Sept. | Patchy rain possible | 29° /20° | 2.1 mm | 7 | |
| 9 Sept. | Cloudy | 30° /21° | 1.9 mm | 6 | |
| 10 Sept. | Moderate rain at times | 29° /21° | 14.6 mm | 6 | |
| 11 Sept. | Patchy rain possible | 29° /21° | 6 mm | 6 | |
| 12 Sept. | Patchy rain possible | 29° /21° | 1.9 mm | 7 | |
| 13 Sept. | Overcast | 29° /21° | 3.1 mm | 7 | |
| 14 Sept. | Moderate or heavy rain shower | 29° /21° | 8.1 mm | 6 | |
| 15 Sept. | Light rain shower | 29° /21° | 6.7 mm | 6 | |
| 16 Sept. | Patchy rain possible | 29° /21° | 1.6 mm | 6 | |
| 17 Sept. | Moderate or heavy rain shower | 28° /22° | 16.8 mm | 6 | |
| 18 Sept. | Patchy rain possible | 28° /21° | 11 mm | 6 | |
| 19 Sept. | Cloudy | 28° /20° | 9.7 mm | 7 | |
| 20 Sept. | Overcast | 27° /19° | 5 mm | 6 | |
| 21 Sept. | Patchy rain possible | 26° /19° | 7.6 mm | 6 | |
| 22 Sept. | Light rain shower | 26° /18° | 3.4 mm | 6 | |
| 23 Sept. | Patchy rain possible | 26° /17° | 1.6 mm | 6 | |
| 24 Sept. | Patchy rain possible | 26° /16° | 0.2 mm | 6 | |
| 25 Sept. | Patchy rain possible | 26° /18° | 1.1 mm | 6 | |
| 26 Sept. | Light rain shower | 27° /18° | 0.6 mm | 6 | |
| 27 Sept. | Patchy rain possible | 26° /19° | 5.3 mm | 6 | |
| 28 Sept. | Patchy rain possible | 26° /19° | 0.9 mm | 5 | |
| 29 Sept. | Cloudy | 26° /17° | 0.9 mm | 6 | |
| 30 Sept. | Cloudy | 26° /17° | 0.6 mm | 6 | |
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Hiroshima-shi weather in September vs August vs October
| August | September | October | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Patchy rain possible | 
| Temperatures | 30°/23° | 27°/20° | 22°/13° | 
| Rainfall | 320 mm | 146 mm | 45 mm | 
| Wind | 12.3 km/h | 12.3 km/h | 13.4 km/h | 
| Humidity | 81% | 81% | 73% | 
| Rainy days | 29 days | 22 days | 16 days | 
| Dry days | 2 days | 8 days | 15 days | 
Planning a trip to Hiroshima-shi? Discover the best time to visit
Hiroshima-shi in September - FAQ
What to pack to Hiroshima-shi in September?
As you prepare for your trip to Hiroshima-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 Hiroshima-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
 
- 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 Hiroshima-shi
UV exposure in Hiroshima-shi during September
Quick links
Get accurate weather forecasts for Hiroshima-shi, located at latitude 34.4 and longitude 132.45. Stay updated with localized weather information tailored for Hiroshima-shi.