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Weather & Climate in As Si‘in, Syria
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
As Si‘in enjoys a temperate climate with an average annual temperature of 65°F (19°C). Winters average 45°F in January while summers reach 84°F in July. The area gets 336 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 9.5 inches (drier than the 38-inch national average). The city sits at an elevation of 1,486 feet.
Temperature
45°F Jan (7°C)
84°F Jul (29°C)
| Annual Average | 65.4°F |
| 21% above US avg | |
| January Average | 45°F (7°C) |
| July Average | 84°F (29°C) |
| Sunny Days | 336 days/yr |
Geography
| Elevation | 1,486 ft (453 m) |
| Area | 260.8 sq mi (675.6 km²) |
| Population Density | 0/sq mi |
| Coordinates | 35.2638°N, 37.3740°W |
| Timezone | Asia/Damascus |
Precipitation & Snow
Air Quality
Earthquake History
35 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.2.
| Aug 12, 2024 | 12 km NNW of As Salamīyah, Syria | M5.2 | 36 km | 7 km |
| Feb 23, 2023 | 6 km SSE of Büyükçat, Turkey | M4.9 | 146 km | 10 km |
| Aug 16, 2024 | 5 km NNW of As Salamīyah, Syria | M4.8 | 38 km | 10 km |
| Feb 7, 2023 | 10 km NW of Yaylada??, Turkey | M4.7 | 148 km | 10 km |
| Feb 6, 2023 | 11 km SE of Yaylada??, Turkey | M4.6 | 127 km | 10 km |
| Feb 6, 2023 | 4 km E of Kastal, Turkey | M4.6 | 147 km | 10 km |
| Aug 13, 2024 | 14 km N of As Salamīyah, Syria | M4.5 | 31 km | 5 km |
| Feb 8, 2023 | 3 km E of Antakya, Turkey | M4.5 | 149 km | 10 km |
| Jan 12, 2023 | 6 km NNE of Kh?n Shaykh?n, Syria | M4.4 | 69 km | 10 km |
| May 9, 2023 | 55 km E of As Salamīyah, Syria | M4.4 | 39 km | 10 km |
| Feb 6, 2023 | 2 km NE of Uzunkavak, Turkey | M4.4 | 149 km | 10 km |
| Feb 6, 2023 | Turkey-Syria border region | M4.4 | 147 km | 10 km |
| Feb 7, 2023 | Turkey-Syria border region | M4.4 | 136 km | 14 km |
| Feb 26, 2003 | 6 km NNW of Jisr ash Shugh?r, Syria | M4.4 | 119 km | 33 km |
| Feb 14, 2023 | 6 km NNW of K??lak, Turkey | M4.4 | 140 km | 10 km |
| Feb 6, 2023 | 2 km SE of Dursunlu, Turkey | M4.3 | 146 km | 10 km |
| Jan 21, 2023 | 12 km ENE of Tallkalakh, Syria | M4.3 | 109 km | 10 km |
| Mar 6, 2023 | 4 km SE of Gümü?göze, Turkey | M4.3 | 145 km | 10 km |
| Feb 12, 2023 | 4 km E of Alt?nözü, Turkey | M4.2 | 136 km | 10 km |
| Jul 24, 2016 | 11 km N of Tadmur, Syria | M4.2 | 106 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
1 tsunami recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1872 | SAMANDAG (SUAIDIYA) | Earthquake | — | 1,800 | 149 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 45°F (7°C) | 2.2 in | Coldest, Wettest |
| February | 46°F (8°C) | 1.8 in | |
| March | 53°F (12°C) | 1.5 in | |
| April | 62°F (17°C) | 1.2 in | |
| May | 72°F (22°C) | 0.6 in | |
| June | 79°F (26°C) | 0.1 in | |
| July | 84°F (29°C) | 0.0 in | Warmest, Driest |
| August | 83°F (29°C) | 0.0 in | |
| September | 78°F (25°C) | 0.1 in | |
| October | 69°F (21°C) | 0.5 in | |
| November | 55°F (13°C) | 1.1 in | |
| December | 46°F (8°C) | 2.1 in |
As Si‘in has a seasonal temperature swing of 40°F / from 45°F in January to 84°F in July. Total annual precipitation is 11.2 inches, with January being the wettest month (2.2") and July the driest (0.0").