Castro climate by month
What the weather is like
Castro has an oceanic climate (Köppen Cfb): rain spread through the year and no real dry season.
The warmest month is February, when afternoons average 20° and nights 10°. July is the coolest month, with highs of 10° and lows of 4°. The difference between the warmest and the coolest month is about 8°, a small seasonal swing typical of places tempered by the sea.
About 1,355 mm of precipitation falls in an average year. June is the wettest month (190 mm, 20 wet days) and February the driest (56 mm, 6 wet days). Cloud cover ranges from 33% in February to 51% in June.
The sea reaches about 14° in January. Sea temperatures lag the air by a month or two, so late summer is usually warmer for swimming than early summer.
Compared with Santiago, the capital, Castro is 8.9° cooler on a February afternoon and receives more precipitation over the year.
Year in figures
- Hottest afternoons
- 20° · February
- Coldest nights
- 4° · July
- Wettest month
- June
- Driest month
- February
- Clearest skies
- February · 33% cloud
- Warmest sea
- 14° · January
- Longest day
- 15 h 16 min
- Shortest day
- 9 h 05 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 | 19° | 20° | 18° | 14° | 12° | 10° | 10° | 10° | 12° | 14° | 16° | 18° |
| Average low | 10° | 10° | 10° | 8° | 6° | 5° | 4° | 4° | 5° | 6° | 8° | 9° |
| Precipitation | 65 mm | 56 mm | 82 mm | 114 mm | 170 mm | 190 mm | 157 mm | 155 mm | 117 mm | 103 mm | 77 mm | 69 mm |
| Wet days (≥1 mm) | 5.8 | 5.7 | 10 | 14.7 | 17 | 20.3 | 18.7 | 15.5 | 17.2 | 10.3 | 10.3 | 6.7 |
| Cloud cover | 36% | 33% | 38% | 43% | 50% | 51% | 50% | 49% | 46% | 43% | 42% | 40% |
| Sea temperature | 14° | 14° | 14° | 13° | 12° | 12° | 11° | 11° | 11° | 11° | 12° | 13° |
| Daylight | 14h 56 | 13h 44 | 12h 25 | 10h 57 | 9h 44 | 9h 05 | 9h 21 | 10h 24 | 11h 47 | 13h 12 | 14h 33 | 15h 16 |
| Month score | 84 | 85 | 71 | 43 | 27 | 16 | 17 | 19 | 29 | 49 | 58 | 79 |