Click on a day for an hourly weather forecast
The weather in Costa Rei in August is very hot. The average temperatures are between 23°C and 31°C, drinking water regularly is advisable.
You can expect a few rainy days in Costa Rei during August, but usually the weather is comfortable in August.
Our weather forecast can give you a great sense of what weather to expect in Costa Rei in August 2026.
If you’re planning to visit Costa Rei in the near future, we highly recommend that you review the 14 day weather forecast for Costa Rei before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 14° / 8° | 4 | 27 | 0 | 57 mm | Good | Costa Rei in January |
| February | 14° / 7° | 2 | 26 | 0 | 48 mm | Good | Costa Rei in February |
| March | 16° / 8° | 3 | 28 | 0 | 56 mm | Good | Costa Rei in March |
| April | 18° / 11° | 4 | 26 | 0 | 67 mm | Good | Costa Rei in April |
| May | 22° / 14° | 3 | 28 | 0 | 59 mm | Good | Costa Rei in May |
| June | 27° / 19° | 1 | 29 | 0 | 21 mm | Perfect | Costa Rei in June |
| July | 30° / 22° | 1 | 30 | 0 | 10 mm | Good | Costa Rei in July |
| August | 31° / 23° | 1 | 30 | 0 | 25 mm | Good | Costa Rei in August |
| September | 27° / 20° | 3 | 27 | 0 | 57 mm | Perfect | Costa Rei in September |
| October | 23° / 17° | 3 | 28 | 0 | 66 mm | Perfect | Costa Rei in October |
| November | 18° / 13° | 4 | 26 | 0 | 106 mm | Good | Costa Rei in November |
| December | 15° / 10° | 2 | 29 | 0 | 50 mm | Good | Costa Rei in December |