All Countries
Weather & Climate in Sint-Jan, Belgium
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sint-Jan experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 42°F in January while summers reach 65°F in July. The area gets 222 sunny days per year, above the national average. Annual precipitation totals 40.2 inches. The area receives 6.0 inches of snow annually. The city sits at an elevation of 89 feet.
Temperature
42°F Jan (6°C)
65°F Jul (18°C)
| Annual Average | 53.3°F |
| 1% below US avg | |
| January Average | 42°F (6°C) |
| July Average | 65°F (18°C) |
| Sunny Days | 222 days/yr |
Geography
| Elevation | 89 ft (27 m) |
| Area | 8.6 sq mi (22.3 km²) |
| Population Density | 118/sq mi |
| Coordinates | 50.8650°N, 2.9048°W |
| Timezone | Europe/Brussels |
Precipitation & Snow
Air Quality
Earthquake History
45 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.6.
| Apr 28, 2007 | 1 km WNW of Lympne, United Kingdom | M4.6 | 135 km | 10 km |
| Jun 20, 1995 | 1 km N of Ghlin, Belgium | M4.3 | 82 km | 20 km |
| Aug 29, 1992 | 4 km SSE of Cousolre, France | M4.1 | 116 km | 18 km |
| Jan 23, 2007 | 57 km ENE of Broadstairs, United Kingdom | M4.1 | 102 km | 10 km |
| Dec 14, 1991 | 3 km SSE of Longfossé, France | M4.0 | 80 km | 10 km |
| Sep 15, 1994 | 38 km NE of Broadstairs, United Kingdom | M3.9 | 115 km | 10 km |
| Aug 26, 1992 | 2 km WSW of Rance, Belgium | M3.9 | 125 km | 10 km |
| Jan 27, 1998 | 27 km W of Le Touquet-Paris-Plage, France | M3.8 | 127 km | 2 km |
| Jul 13, 2008 | 0 km ESE of Court-Saint-Étienne, Belgium | M3.8 | 120 km | 4 km |
| May 22, 2015 | 3 km SSE of Ramsgate, United Kingdom | M3.7 | 114 km | 12 km |
| Mar 3, 2009 | 1 km ENE of Hawkinge, United Kingdom | M3.5 | 124 km | 4 km |
| Jan 27, 1992 | 6 km SSE of Longfossé, France | M3.5 | 80 km | 10 km |
| Jul 20, 1994 | 2 km N of Rousies, France | M3.5 | 100 km | 5 km |
| Feb 13, 1997 | 26 km W of Le Touquet-Paris-Plage, France | M3.2 | 125 km | 5 km |
| Jul 14, 2008 | 1 km SW of Boussu, Belgium | M3.2 | 79 km | 4 km |
| Oct 25, 1998 | 6 km NNE of Montdidier, France | M3.2 | 131 km | 7 km |
| Jul 2, 2001 | 3 km NNE of Oostduinkerke, Belgium | M3.1 | 34 km | 5 km |
| Jun 1, 2005 | 3 km N of Grandvilliers, France | M3.1 | 146 km | 10 km |
| May 4, 1990 | 0 km NE of Coquelles, France | M3.1 | 78 km | 10 km |
| Feb 27, 2005 | 1 km NW of Libercourt, France | M3.1 | 42 km | 4 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
2 tsunamis recorded within 500 km. Highest wave on record: 6.0 m (20 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1858 | NORTH SEA | Unknown | 6.0 m | — | 93 km |
| 1911 | FOLKSTONE, ENGLAND | Meteorological | 0.9 m | — | 119 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 42°F (6°C) | 2.3 in | |
| February | 39°F (4°C) | 1.7 in | Coldest, Driest |
| March | 43°F (6°C) | 2.2 in | |
| April | 47°F (8°C) | 1.9 in | |
| May | 54°F (12°C) | 2.2 in | |
| June | 59°F (15°C) | 2.6 in | |
| July | 65°F (18°C) | 2.5 in | Warmest |
| August | 63°F (17°C) | 2.1 in | |
| September | 58°F (15°C) | 2.8 in | |
| October | 52°F (11°C) | 2.9 in | |
| November | 44°F (7°C) | 3.1 in | Wettest |
| December | 40°F (5°C) | 2.7 in |
Sint-Jan has a seasonal temperature swing of 26°F / from 39°F in February to 65°F in July. Total annual precipitation is 28.9 inches, with November being the wettest month (3.1") and February the driest (1.7").