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Weather & Climate in Sladna, Bosnia and Herzegovina
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sladna experiences four distinct seasons with an average annual temperature of 51°F (10°C). Winters average 32°F in January while summers reach 68°F in July. The area gets 276 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 32.8 inches. The area receives 6.6 inches of snow annually. The city sits at an elevation of 1,102 feet.
Temperature
32°F Jan (0°C)
68°F Jul (20°C)
| Annual Average | 50.8°F |
| 6% below US avg | |
| January Average | 32°F (0°C) |
| July Average | 68°F (20°C) |
| Sunny Days | 276 days/yr |
Geography
| Elevation | 1,102 ft (336 m) |
| Area | 106.7 sq mi (276.4 km²) |
| Population Density | 40/sq mi |
| Coordinates | 44.7290°N, 18.4258°W |
| Timezone | Europe/Sarajevo |
Precipitation & Snow
Air Quality
Earthquake History
299 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.5.
| Sep 29, 1998 | 12 km W of Ljig, Serbia | M5.5 | 143 km | 10 km |
| Apr 30, 1999 | 14 km WSW of Ljig, Serbia | M5.4 | 144 km | 14 km |
| Feb 20, 1996 | 11 km W of Kneževo, Bosnia and Herzegovina | M4.9 | 97 km | 10 km |
| Aug 25, 1995 | 5 km NW of Požega, Croatia | M4.9 | 95 km | 24 km |
| Apr 29, 1991 | 6 km SSW of Mili?i, Bosnia and Herzegovina | M4.8 | 86 km | 19 km |
| Aug 30, 2019 | 6 km NNW of Mramor, Bosnia and Herzegovina | M4.8 | 13 km | 7 km |
| Jun 7, 1992 | 11 km S of Sokolac, Bosnia and Herzegovina | M4.7 | 104 km | 11 km |
| Dec 13, 1995 | 9 km W of Živinice, Bosnia and Herzegovina | M4.6 | 95 km | 10 km |
| Feb 26, 1998 | 6 km W of ?e?ava, Bosnia and Herzegovina | M4.6 | 60 km | 23 km |
| Jun 3, 1990 | 8 km NNE of Maslovare, Bosnia and Herzegovina | M4.6 | 68 km | 10 km |
| May 19, 2023 | 5 km E of Srebrenik, Bosnia and Herzegovina | M4.5 | 11 km | 10 km |
| Jul 27, 2012 | 4 km SSW of Zenica, Bosnia and Herzegovina | M4.5 | 76 km | 10 km |
| May 10, 2003 | 9 km NNW of Livno, Bosnia and Herzegovina | M4.5 | 147 km | 10 km |
| Nov 6, 1993 | 6 km W of Trn, Bosnia and Herzegovina | M4.4 | 102 km | 10 km |
| Oct 19, 1992 | 9 km W of Olovo, Bosnia and Herzegovina | M4.4 | 67 km | 10 km |
| Feb 3, 2007 | 15 km NNE of Široki Brijeg, Bosnia and Herzegovina | M4.4 | 148 km | 10 km |
| Oct 7, 2016 | 1 km NNW of Piškorevci, Croatia | M4.4 | 60 km | 10 km |
| Mar 8, 2015 | 16 km S of Valjevo, Serbia | M4.4 | 137 km | 9 km |
| May 20, 2013 | 10 km E of Livno, Bosnia and Herzegovina | M4.4 | 143 km | 10 km |
| Oct 8, 2012 | 19 km ENE of Glamo?, Bosnia and Herzegovina | M4.4 | 128 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 32°F (0°C) | 2.1 in | Coldest |
| February | 35°F (2°C) | 2.0 in | Driest |
| March | 43°F (6°C) | 2.1 in | |
| April | 50°F (10°C) | 2.6 in | |
| May | 60°F (15°C) | 3.0 in | |
| June | 65°F (18°C) | 4.1 in | Wettest |
| July | 68°F (20°C) | 3.3 in | Warmest |
| August | 68°F (20°C) | 2.8 in | |
| September | 61°F (16°C) | 2.6 in | |
| October | 52°F (11°C) | 2.8 in | |
| November | 41°F (5°C) | 3.0 in | |
| December | 34°F (1°C) | 2.6 in |
Sladna has a seasonal temperature swing of 36°F / from 32°F in January to 68°F in July. Total annual precipitation is 32.8 inches, with June being the wettest month (4.1") and February the driest (2.0").