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The weather in Manteca in September is hot. The average temperatures are between 16°C and 32°C. Usually the days in September are hot while the nights are a bit cooler.
You can expect a few rainy days in Manteca during September, but usually the weather is comfortable in September.
Our weather forecast can give you a great sense of what weather to expect in Manteca in September 2025.
If you’re planning to visit Manteca in the near future, we highly recommend that you review the 14 day weather forecast for Manteca before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 14° / 5° | 6 | 25 | 0 | 91 mm | Good | Manteca in January |
| February | 16° / 5° | 5 | 23 | 0 | 68 mm | Good | Manteca in February |
| March | 18° / 7° | 6 | 25 | 0 | 81 mm | Good | Manteca in March |
| April | 22° / 9° | 3 | 27 | 0 | 34 mm | Good | Manteca in April |
| May | 26° / 12° | 2 | 29 | 0 | 14 mm | Perfect | Manteca in May |
| June | 32° / 15° | 0 | 30 | 0 | 4 mm | Good | Manteca in June |
| July | 35° / 17° | 0 | 31 | 0 | 0 mm | Ok | Manteca in July |
| August | 34° / 17° | 0 | 31 | 0 | 0 mm | Ok | Manteca in August |
| September | 32° / 16° | 1 | 29 | 0 | 3 mm | Good | Manteca in September |
| October | 26° / 13° | 2 | 29 | 0 | 30 mm | Perfect | Manteca in October |
| November | 18° / 8° | 4 | 26 | 0 | 47 mm | Good | Manteca in November |
| December | 13° / 5° | 6 | 25 | 0 | 92 mm | Ok | Manteca in December |