Click on a day for an hourly weather forecast
The temperatures in La Fortuna in August are comfortable with low of 19°C and and high up to 26°C.
With more than 22 rainy days, La Fortuna is an incredibly wet during August. Be sure to pack your umbrella and bring along your rubber boots to stay dry. It’s going to be raining cats and dogs this month!
Our weather forecast can give you a great sense of what weather to expect in La Fortuna in August 2025.
If you’re planning to visit La Fortuna in the near future, we highly recommend that you review the 14 day weather forecast for La Fortuna before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 28° / 17° | 2 | 29 | 0 | 42 mm | Perfect | La Fortuna in January |
| February | 29° / 17° | 2 | 26 | 0 | 41 mm | Good | La Fortuna in February |
| March | 30° / 18° | 3 | 28 | 0 | 50 mm | Good | La Fortuna in March |
| April | 30° / 19° | 12 | 18 | 0 | 186 mm | Ok | La Fortuna in April |
| May | 27° / 20° | 23 | 8 | 0 | 640 mm | Good | La Fortuna in May |
| June | 26° / 20° | 25 | 5 | 0 | 741 mm | Good | La Fortuna in June |
| July | 26° / 19° | 23 | 8 | 0 | 585 mm | Good | La Fortuna in July |
| August | 26° / 19° | 23 | 8 | 0 | 629 mm | Good | La Fortuna in August |
| September | 26° / 19° | 28 | 2 | 0 | 708 mm | Awful | La Fortuna in September |
| October | 26° / 19° | 27 | 4 | 0 | 819 mm | Awful | La Fortuna in October |
| November | 26° / 18° | 19 | 11 | 0 | 368 mm | Good | La Fortuna in November |
| December | 27° / 17° | 6 | 25 | 0 | 114 mm | Perfect | La Fortuna in December |