San Salvador
El Salvador · Central America
Year-round range: 66°F to 89°F
December
Excellent conditions this month
Your monthly fit score
Comfort fit by month.
Climate details▼
Temperature
Average highs and lows.
December is warm and sunny — good beach and outdoor weather.
Shaded band = typical daily swing (P10 of night lows to P90 of afternoon peaks) — spans wider than avg high/low lines because it captures day-to-day variation.
| = DecRainfall
Monthly rain and rain days.
December is one of the driest months — very little rain expected.
Sunshine
Average hours of bright sun per day.
December is one of the sunniest months — great for outdoor plans.
Clear sky
Clear-sky share is the inverse of average cloud cover (100% minus cloud cover). Band labels follow standard meteorological categories; distribution within each band varies by day.
Air comfort by month
Humidity and heat feel by month.
December is mostly comfortable — low heat and humidity pressure.
Time-of-day patterns
Typical hourly rhythm for December.
Temperature by hour
Temperature by hour and month
Typical temperature through the day across the year (1996-2025 normals, local time). Shaded cells are nighttime.
In December, afternoons reach about 85° and nights settle near 66°.
▶Full month-by-month data
| Month | High °F | Low °F | Rain days | Rain (in) | Sun h/day | Humidity |
|---|---|---|---|---|---|---|
| Jan | 86°F | 66°F | 1 | 0.4in | 10.3h | 58.857142857142854% |
| Feb | 88°F | 67°F | 2 | 0.4in | 10.8h | 56.71428571428571% |
| Mar | 89°F | 69°F | 3 | 1.0in | 10.3h | 57.85714285714285% |
| Apr | 87°F | 70°F | 10 | 1.8in | 8.6h | 66.28571428571428% |
| May | 85°F | 71°F | 25 | 7.7in | 5h | 77.85714285714285% |
| Jun | 82°F | 70°F | 27 | 11in | 3.3h | 84.28571428571428% |
| Jul | 84°F | 70°F | 24 | 8.0in | 4.9h | 78.85714285714286% |
| Aug | 84°F | 70°F | 28 | 10in | 4.4h | 80.85714285714285% |
| Sep | 82°F | 69°F | 29 | 18in | 3.4h | 84.85714285714285% |
| Oct | 82°F | 69°F | 24 | 5.9in | 4.4h | 82.85714285714286% |
| Nov | 83°F | 67°F | 9 | 2.4in | 7.5h | 72.14285714285714% |
| Dec | 85°F | 67°F | 3 | 0.6in | 9.9h | 63.57142857142857% |