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Rocha climate by month
What the weather is like
Rocha has a humid subtropical climate (Köppen Cfa): rain spread through the year and no real dry season.
The warmest month is January, when afternoons average 26° and nights 18°. July is the coolest month, with highs of 14° and lows of 8°. The difference between the warmest and the coolest month is about 11°.
About 1,163 mm of precipitation falls in an average year. March is the wettest month (113 mm, 10 wet days) and August the driest (98 mm, 6 wet days). Cloud cover ranges from 30% in January to 42% in June.
The sea reaches about 23° in February. Sea temperatures lag the air by a month or two, so late summer is usually warmer for swimming than early summer.
Compared with Montevideo, the capital, Rocha is 1.6° warmer on a January afternoon and receives more precipitation over the year.
Year in figures
- Hottest afternoons
- 26° · January
- Coldest nights
- 8° · July
- Wettest month
- March
- Driest month
- August
- Clearest skies
- January · 30% cloud
- Warmest sea
- 23° · February
- Longest day
- 14 h 27 min
- Shortest day
- 9 h 51 min
Twelve months at a glance
Temperature and precipitation
Daily high/low range bars, monthly precipitation columns, sea temperature lineTemperature curve
Average high, low and seaDaylight
Hours between sunrise and sunset on the 15th of each monthClimate normals month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high | 26° | 26° | 24° | 21° | 18° | 15° | 14° | 16° | 17° | 19° | 22° | 25° |
| Average low | 18° | 19° | 18° | 15° | 12° | 9° | 8° | 9° | 9° | 12° | 14° | 16° |
| Precipitation | 85 mm | 106 mm | 113 mm | 100 mm | 111 mm | 103 mm | 102 mm | 98 mm | 89 mm | 102 mm | 88 mm | 66 mm |
| Wet days (≥1 mm) | 10 | 8.8 | 10.3 | 8.8 | 7.5 | 8.8 | 7.5 | 6.3 | 9.5 | 7.3 | 7.5 | 6.7 |
| Cloud cover | 30% | 34% | 33% | 37% | 40% | 42% | 42% | 41% | 41% | 40% | 36% | 32% |
| Sea temperature | 22° | 23° | 22° | 20° | 17° | 14° | 12° | 12° | 13° | 15° | 18° | 20° |
| Daylight | 14h 12 | 13h 19 | 12h 20 | 11h 14 | 10h 20 | 9h 51 | 10h 03 | 10h 49 | 11h 51 | 12h 55 | 13h 55 | 14h 27 |
| Month score | 71 | 75 | 74 | 76 | 77 | 59 | 58 | 69 | 66 | 79 | 80 | 83 |