Peninsula Valdes, the city of Puerto Madryn and the capital Trelew are all located in the province of Chubut, on the shores of three gulfs: San Matias, San Jose, and Nuevo. This area features a peculiar climate because of the effect created by the Atlantic Ocean. Although it does not rain much in the region on an annual basis, summers are usually mild, and the temperature sometimes gets very hot and then eases off in the evening. The area does get very windy at times, especially on the peninsula , and proper clothing is recommended.
Average temperatures (Cº)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| High Cº | 30 | 29 | 27 | 22 | 17 | 13 | 13 | 16 | 19 | 23 | 26 | 29 |
| Low Cº | 13 | 13 | 11 | 6 | 3 | 0 | 0 | 1 | 4 | 7 | 10 | 12 |
Average rainfall (mm)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| mm | 22 | 28 | 31 | 19 | 34 | 20 | 13 | 15 | 14 | 29 | 16 | 22 |
| Days | 6 | 5 | 6 | 6 | 8 | 8 | 7 | 7 | 7 | 6 | 6 | 4 |
