Click on a day for an hourly weather forecast
The temperatures in Jaca in May are quite cold with temperatures between 6°C and 14°C, warm clothes are a must.
You can expect rain for roughly half of the month of May in Jaca. 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.
You can expect a few days of snow in Jaca during May. It’s important to get out your snow boots and warm mittens to stay warm while you explore Jaca.
Our weather forecast can give you a great sense of what weather to expect in Jaca in May 2026.
If you’re planning to visit Jaca in the near future, we highly recommend that you review the 14 day weather forecast for Jaca before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 5° / -2° | 7 | 10 | 16 | 191 mm | Awful | Jaca in January |
| February | 5° / -2° | 6 | 8 | 15 | 158 mm | Awful | Jaca in February |
| March | 7° / 0° | 8 | 9 | 14 | 155 mm | Awful | Jaca in March |
| April | 11° / 3° | 10 | 12 | 8 | 179 mm | Awful | Jaca in April |
| May | 14° / 6° | 11 | 17 | 4 | 167 mm | Bad | Jaca in May |
| June | 19° / 9° | 10 | 21 | 0 | 159 mm | Ok | Jaca in June |
| July | 22° / 12° | 7 | 24 | 0 | 121 mm | Ok | Jaca in July |
| August | 22° / 12° | 5 | 26 | 0 | 93 mm | Good | Jaca in August |
| September | 18° / 9° | 6 | 24 | 0 | 91 mm | Good | Jaca in September |
| October | 14° / 6° | 6 | 23 | 2 | 140 mm | Ok | Jaca in October |
| November | 9° / 2° | 8 | 13 | 10 | 208 mm | Awful | Jaca in November |
| December | 7° / 0° | 5 | 14 | 12 | 161 mm | Bad | Jaca in December |