Click on a day for an hourly weather forecast
The temperatures in Uddevalla in August are usually low and can range between 12°C and 20°C.
You can expect rain for roughly half of the month of August in Uddevalla. 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.
Our weather forecast can give you a great sense of what weather to expect in Uddevalla in August 2026.
If you’re planning to visit Uddevalla in the near future, we highly recommend that you review the 14 day weather forecast for Uddevalla before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 1° / -3° | 8 | 10 | 13 | 78 mm | Awful | Uddevalla in January |
| February | 1° / -3° | 8 | 7 | 14 | 75 mm | Awful | Uddevalla in February |
| March | 5° / -1° | 6 | 18 | 7 | 62 mm | Awful | Uddevalla in March |
| April | 11° / 3° | 5 | 23 | 2 | 52 mm | Bad | Uddevalla in April |
| May | 15° / 6° | 6 | 24 | 0 | 82 mm | Good | Uddevalla in May |
| June | 19° / 10° | 6 | 24 | 0 | 93 mm | Good | Uddevalla in June |
| July | 21° / 12° | 7 | 24 | 0 | 109 mm | Ok | Uddevalla in July |
| August | 20° / 12° | 8 | 23 | 0 | 131 mm | Ok | Uddevalla in August |
| September | 16° / 10° | 6 | 24 | 0 | 101 mm | Good | Uddevalla in September |
| October | 11° / 6° | 9 | 22 | 0 | 114 mm | Bad | Uddevalla in October |
| November | 6° / 3° | 8 | 18 | 4 | 96 mm | Awful | Uddevalla in November |
| December | 2° / -1° | 10 | 12 | 9 | 94 mm | Awful | Uddevalla in December |