Weather in Chiba for September 2025
Until now, September 2025 in Chiba has been nearly identical to the historical average, with a temperature of 29.4 °C (showing only a slight deviation of -0.3 °C).
The forecast for the next days in Chiba predicts a temperature of 24.6 °C, which is cooler than the historical average.
In general, the average temperature in Chiba at the beginning of September is 29.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 22.7 °C by the end of September.
The climate of Chiba in September is notably wet, with an average of 13 rainy days, and a total of 128.5 mm of precipitation.
Is September a good time to visit Chiba? check out the best time to travel to Chiba page.
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Chiba Weather September
What’s the Weather Like in Chiba This September?
Temperatures trend during September in Chiba
September weather in Chiba day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Light rain shower | 30° /25° | 4.3 mm | 7 | |
| 2 Sept. |  Partly cloudy | 32° /26° | 0 mm | 8 | |
| 3 Sept. |  Torrential rain shower | 29° /24° | 38.2 mm | 7 | |
| 4 Sept. | Light rain shower | 26° /23° | 14.3 mm | 6 | |
| 5 Sept. | Partly cloudy | 28° /22° | 27.7 mm | 7 | |
| 6 Sept. |  Sunny | 30° /23° | 0 mm | 7 | |
| 7 Sept. | Patchy rain possible | 31° /24° | 0.1 mm | 8 | |
| 8 Sept. | Patchy rain possible | 32° /25° | 1.5 mm | 7 | |
| 9 Sept. | Light rain shower | 31° /25° | 1.5 mm | 7 | |
| 10 Sept. | Patchy rain possible | 30° /25° | 7.9 mm | 7 | |
| 11 Sept. | Patchy rain possible | 30° /24° | 6.6 mm | 7 | |
| 12 Sept. | Patchy rain possible | 28° /24° | 5.4 mm | 7 | |
| 13 Sept. | Sunny | 29° /24° | 0.4 mm | 7 | |
| 14 Sept. | Partly cloudy | 30° /27° | 0.1 mm | 1.3 | |
| 15 Sept. | Patchy rain possible | 29° /25° | 1.8 mm | 1.5 | |
| 16 Sept. | Patchy rain possible | 31° /25° | 3.4 mm | 1.8 | |
| 17 Sept. | Sunny | 31° /25° | 0.1 mm | 1.7 | |
| 18 Sept. | Patchy rain possible | 32° /23° | 4.4 mm | 1.8 | |
| 19 Sept. | Heavy rain | 19° /17° | 21.1 mm | 4 | |
| 20 Sept. |  Moderate rain | 18° /18° | 12.5 mm | 4 | |
| 21 Sept. | Moderate rain | 19° /18° | 5.1 mm | 4 | |
| 22 Sept. | Patchy rain possible | 24° /18° | 0.2 mm | 5 | |
| 23 Sept. | Partly cloudy | 23° /21° | 0 mm | 6 | |
| 24 Sept. | Patchy rain possible | 23° /20° | 1.6 mm | 5 | |
| 25 Sept. | Moderate rain | 21° /20° | 6.6 mm | 5 | |
| 26 Sept. | Moderate rain | 23° /20° | 10.6 mm | 5 | |
| 27 Sept. | Patchy rain possible | 21° /19° | 4.1 mm | 5 | |
| 28 Sept. | Light rain shower | 25° /21° | 3.9 mm | 6 | |
| 29 Sept. | Light rain shower | 22° /20° | 6.4 mm | 5 | |
| 30 Sept. | Patchy rain possible | 24° /20° | 0.1 mm | 5 | |
| Next | |||||
Chiba weather in September vs August vs October
| August | September | October | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Patchy rain possible |
| Temperatures | 31°/25° | 29°/23° | 23°/18° |
| Rainfall | 228 mm | 129 mm | 146 mm |
| Wind | 18.2 km/h | 20.4 km/h | 20.9 km/h |
| Humidity | 74% | 76% | 75% |
| Rainy days | 16 days | 13 days | 13 days |
| Dry days | 15 days | 17 days | 18 days |
Planning a trip to Chiba? Discover the best time to visit
Chiba in September - FAQ
What to pack to Chiba in September?
As you prepare for your trip to Chiba 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 Chiba, 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 Chiba
UV exposure in Chiba during September
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Where is Chiba?Get accurate weather forecasts for Chiba, located at latitude 35.6 and longitude 140.117. Stay updated with localized weather information tailored for Chiba.