Weather in Chiba for September 2026
Until now, September 2026 in Chiba is cooler than usual, with temperatures averaging 25.9 °C, this is 2.8 °C below the typical seasonal average.
Expect cooler weather in the next days in Chiba with the forecast suggesting a temperature of 25.3 °C, lower than the historical average.
In general, the average temperature in Chiba at the beginning of September is 28.3 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 26.6 °C by the end of September.
Chiba in September brings notable rainfall, with an average of 19 rainy days and a total precipitation of 151 mm.
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 | 29° /24° | 3 mm | 6 | |
| 2 Sept. |  Partly cloudy | 30° /25° | 0 mm | 6 | |
| 3 Sept. |  Torrential rain shower | 29° /23° | 25.8 mm | 5 | |
| 4 Sept. | Light rain shower | 26° /23° | 11.8 mm | 4 | |
| 5 Sept. | Partly cloudy | 26° /22° | 23.2 mm | 5 | |
| 6 Sept. | Patchy rain possible | 28° /22° | 12.5 mm | 5 | |
| 7 Sept. | Patchy rain possible | 30° /23° | 20.2 mm | 5 | |
| 8 Sept. | Patchy rain possible | 30° /24° | 2 mm | 5 | |
| 9 Sept. | Light rain shower | 30° /24° | 7.1 mm | 5 | |
| 10 Sept. | Patchy rain possible | 30° /25° | 7.9 mm | 7 | |
| 11 Sept. |  Light rain | 21° /19° | 27.7 mm | 0.9 | |
| 12 Sept. | Light rain shower | 22° /20° | 13 mm | 0.7 | |
| 13 Sept. | Patchy rain possible | 26° /21° | 0.8 mm | 5.8 | |
| 14 Sept. |  Sunny | 28° /23° | 0.1 mm | 8.3 | |
| 15 Sept. | Patchy rain possible | 25° /23° | 10.4 mm | 1.2 | |
| 16 Sept. | Light rain shower | 25° /23° | 6.8 mm | 5 | |
| 17 Sept. | Patchy rain possible | 26° /22° | 3.1 mm | 6 | |
| 18 Sept. | Patchy rain possible | 26° /23° | 1.9 mm | 6 | |
| 19 Sept. | Patchy rain possible | 24° /22° | 0.1 mm | 5 | |
| 20 Sept. | Light rain shower | 23° /22° | 10.7 mm | 5 | |
| 21 Sept. |  Overcast | 26° /22° | 2.9 mm | 6 | |
| 22 Sept. | Overcast | 25° /22° | 0 mm | 6 | |
| 23 Sept. | Sunny | 28° /22° | 1 mm | 7 | |
| 24 Sept. | Patchy rain possible | 29° /24° | 2.6 mm | 7 | |
| 25 Sept. | Overcast | 25° /19° | 0.1 mm | 6 | |
| 26 Sept. | Patchy rain possible | 29° /21° | 1.1 mm | 7 | |
| 27 Sept. | Patchy rain possible | 26° /22° | 3.9 mm | 6 | |
| 28 Sept. | Light rain shower | 26° /21° | 2.8 mm | 6 | |
| 29 Sept. | Light rain shower | 26° /21° | 4 mm | 6 | |
| 30 Sept. | Patchy rain possible | 25° /20° | 1.4 mm | 6 | |
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Chiba weather in September vs August vs October
| August | September | October | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Patchy rain possible |
| Temperatures | 31°/25° | 28°/23° | 22°/17° |
| Rainfall | 157 mm | 151 mm | 116 mm |
| Wind | 19.7 km/h | 20.3 km/h | 19.7 km/h |
| Humidity | 73% | 74% | 73% |
| Rainy days | 18 days | 19 days | 18 days |
| Dry days | 13 days | 11 days | 13 days |
Planning a trip to Chiba? Discover the best time to visit
Chiba in September - FAQ
What are the expected maximum and minimum temperatures in Chiba during September?
How much rainfall should be expected in Chiba during September?
What are the typical wind conditions in Chiba during September?
September rainfall patterns in Chiba
UV exposure in Chiba during September
What to pack to Chiba in September?
Warm & sunny · highs around 28 °C, frequent showers
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
👟 Footwear
🎒 Accessories
🧴 Personal Items
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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.