Click on a day for an hourly weather forecast
The temperatures in Upplands Vasby in August are comfortable with low of 13°C and and high up to 21°C.
You can expect about 3 to 8 days of rain in Upplands Vasby during the month of August. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Upplands Vasby in August 2026.
If you’re planning to visit Upplands Vasby in the near future, we highly recommend that you review the 14 day weather forecast for Upplands Vasby before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -1° / -4° | 5 | 10 | 16 | 54 mm | Awful | Upplands Vasby in January |
| February | 0° / -4° | 4 | 8 | 16 | 51 mm | Awful | Upplands Vasby in February |
| March | 4° / -2° | 6 | 12 | 13 | 48 mm | Awful | Upplands Vasby in March |
| April | 10° / 2° | 5 | 20 | 5 | 45 mm | Bad | Upplands Vasby in April |
| May | 15° / 6° | 5 | 25 | 1 | 69 mm | Good | Upplands Vasby in May |
| June | 19° / 11° | 6 | 24 | 0 | 93 mm | Good | Upplands Vasby in June |
| July | 22° / 13° | 7 | 24 | 0 | 104 mm | Ok | Upplands Vasby in July |
| August | 21° / 13° | 5 | 26 | 0 | 90 mm | Good | Upplands Vasby in August |
| September | 16° / 10° | 5 | 25 | 0 | 54 mm | Good | Upplands Vasby in September |
| October | 10° / 5° | 6 | 25 | 1 | 59 mm | Ok | Upplands Vasby in October |
| November | 5° / 2° | 5 | 21 | 4 | 53 mm | Awful | Upplands Vasby in November |
| December | 1° / -2° | 5 | 14 | 12 | 50 mm | Awful | Upplands Vasby in December |