Click on a day for an hourly weather forecast
The weather in Oyonnax in March is very cold with temperatures between 2°C and 12°C, warm clothes are a must.
You can expect rain for roughly half of the month of March in Oyonnax. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Please note that Oyonnax can expect a few days of snow in March.
Our weather forecast can give you a great sense of what weather to expect in Oyonnax in March 2026.
If you’re planning to visit Oyonnax in the near future, we highly recommend that you review the 14 day weather forecast for Oyonnax before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 5° / -1° | 10 | 14 | 7 | 156 mm | Awful | Oyonnax in January |
| February | 7° / 0° | 9 | 14 | 6 | 131 mm | Awful | Oyonnax in February |
| March | 12° / 2° | 9 | 21 | 2 | 126 mm | Awful | Oyonnax in March |
| April | 16° / 5° | 7 | 23 | 0 | 131 mm | Ok | Oyonnax in April |
| May | 19° / 7° | 10 | 21 | 0 | 199 mm | Ok | Oyonnax in May |
| June | 24° / 11° | 10 | 20 | 0 | 194 mm | Good | Oyonnax in June |
| July | 26° / 13° | 7 | 24 | 0 | 153 mm | Good | Oyonnax in July |
| August | 26° / 13° | 6 | 25 | 0 | 157 mm | Perfect | Oyonnax in August |
| September | 22° / 10° | 5 | 25 | 0 | 119 mm | Good | Oyonnax in September |
| October | 16° / 7° | 7 | 24 | 0 | 143 mm | Ok | Oyonnax in October |
| November | 10° / 3° | 9 | 19 | 2 | 178 mm | Awful | Oyonnax in November |
| December | 7° / 1° | 11 | 15 | 5 | 188 mm | Awful | Oyonnax in December |