Click on a day for an hourly weather forecast
The weather in Marathon in May is very hot. The average temperatures are between 26°C and 27°C, drinking water regularly is advisable.
You can expect about 3 to 8 days of rain in Marathon during the month of May. 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 Marathon in May 2025.
If you’re planning to visit Marathon in the near future, we highly recommend that you review the 14 day weather forecast for Marathon before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 23° / 20° | 3 | 28 | 0 | 35 mm | Perfect | Marathon in January |
| February | 23° / 21° | 2 | 26 | 0 | 33 mm | Perfect | Marathon in February |
| March | 24° / 22° | 2 | 29 | 0 | 23 mm | Perfect | Marathon in March |
| April | 25° / 24° | 3 | 27 | 0 | 42 mm | Perfect | Marathon in April |
| May | 27° / 26° | 6 | 25 | 0 | 93 mm | Perfect | Marathon in May |
| June | 29° / 27° | 10 | 20 | 0 | 110 mm | Ok | Marathon in June |
| July | 29° / 28° | 11 | 20 | 0 | 84 mm | Ok | Marathon in July |
| August | 30° / 28° | 12 | 19 | 0 | 110 mm | Ok | Marathon in August |
| September | 29° / 28° | 12 | 18 | 0 | 153 mm | Ok | Marathon in September |
| October | 28° / 26° | 7 | 24 | 0 | 133 mm | Good | Marathon in October |
| November | 25° / 24° | 4 | 27 | 0 | 47 mm | Perfect | Marathon in November |
| December | 24° / 22° | 2 | 29 | 0 | 38 mm | Perfect | Marathon in December |