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Weather & Climate in Sleman, Indonesia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sleman enjoys a temperate climate with an average annual temperature of 67°F (20°C). Winters average 68°F in January while summers reach 65°F in July / relatively mild seasonal variation. The area gets 333 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 82.1 inches (wetter than the 38-inch national average). The city sits at an elevation of 689 feet.
Temperature
68°F Jan (20°C)
65°F Jul (18°C)
| Annual Average | 67.4°F |
| 25% above US avg | |
| January Average | 68°F (20°C) |
| July Average | 65°F (18°C) |
| Sunny Days | 333 days/yr |
Geography
| Elevation | 689 ft (210 m) |
| Area | 2.8 sq mi (7.1 km²) |
| Population Density | 20,368/sq mi |
| Coordinates | -7.7156°N, 110.3556°W |
| Timezone | Asia/Jakarta |
Precipitation & Snow
Air Quality
Earthquake History
235 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.3.
| May 26, 2006 | 10 km E of Pundong, Indonesia | M6.3 | 29 km | 13 km |
| May 25, 2001 | 11 km NW of Srandakan, Indonesia | M6.3 | 26 km | 143 km |
| Jan 25, 2014 | 39 km S of Kroya, Indonesia | M6.1 | 124 km | 66 km |
| Jun 9, 1992 | 65 km S of Jatiroto, Indonesia | M6.1 | 118 km | 64 km |
| Jun 30, 2023 | 82 km SSW of Bambanglipuro, Indonesia | M5.9 | 110 km | 76 km |
| Jul 19, 2003 | 85 km SW of Trenggalek, Indonesia | M5.9 | 144 km | 56 km |
| Sep 8, 2003 | 67 km S of Bambanglipuro, Indonesia | M5.9 | 95 km | 51 km |
| May 5, 1995 | 93 km S of Jatiroto, Indonesia | M5.9 | 135 km | 77 km |
| Oct 14, 2001 | 77 km SSE of Pundong, Indonesia | M5.8 | 103 km | 67 km |
| Jun 7, 2023 | 146 km S of Wonosari, Indonesia | M5.6 | 135 km | 18 km |
| Nov 21, 1992 | 76 km S of Pundong, Indonesia | M5.5 | 103 km | 48 km |
| May 5, 1995 | 106 km S of Pundong, Indonesia | M5.4 | 134 km | 67 km |
| Aug 26, 2024 | 89 km S of Bambanglipuro, Indonesia | M5.4 | 117 km | 55 km |
| Jan 29, 2000 | 82 km S of Jatiroto, Indonesia | M5.4 | 133 km | 61 km |
| Jul 27, 1995 | 86 km SW of Trenggalek, Indonesia | M5.4 | 143 km | 72 km |
| Aug 26, 1993 | 79 km S of Pundong, Indonesia | M5.3 | 106 km | 66 km |
| Feb 4, 1999 | 113 km S of Pundong, Indonesia | M5.3 | 140 km | 101 km |
| Jul 4, 1991 | 62 km S of Jatiroto, Indonesia | M5.3 | 109 km | 114 km |
| Jul 12, 1997 | 122 km S of Pundong, Indonesia | M5.3 | 149 km | 33 km |
| Apr 18, 2014 | 122 km S of Pundong, Indonesia | M5.3 | 149 km | 15 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Nearby Volcanoes
11 volcanoes within 200 km. Closest: Merapi (22 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Merapi | Stratovolcano | 2,910 m (9,547 ft) | 2020 | 22 km |
| Merbabu | Stratovolcano | 3,118 m (10,230 ft) | 1797 | 31 km |
| Telomoyo | Stratovolcano | 1,864 m (6,115 ft) | Unknown | 40 km |
| Sumbing | Stratovolcano | 3,371 m (11,060 ft) | 1730 | 49 km |
| Ungaran | Stratovolcano | 2,050 m (6,726 ft) | Unknown | 60 km |
| Sundoro | Stratovolcano | 3,136 m (10,289 ft) | 1971 | 61 km |
| Dieng Volcanic Complex | Complex | 2,565 m (8,415 ft) | 2018 | 78 km |
| Lawu | Stratovolcano | 3,265 m (10,712 ft) | 1885 | 93 km |
| Muria | Stratovolcano | 1,625 m (5,331 ft) | -160 | 135 km |
| Slamet | Stratovolcano | 3,428 m (11,247 ft) | 2014 | 137 km |
| Wilis | Stratovolcano | 2,563 m (8,409 ft) | Unknown | 155 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 68°F (20°C) | 15.0 in | Wettest |
| February | 79°F (26°C) | 13.1 in | |
| March | 79°F (26°C) | 13.4 in | |
| April | 80°F (27°C) | 8.3 in | Warmest |
| May | 79°F (26°C) | 5.3 in | |
| June | 78°F (26°C) | 2.9 in | |
| July | 65°F (18°C) | 1.4 in | Coldest |
| August | 78°F (25°C) | 1.3 in | Driest |
| September | 79°F (26°C) | 1.7 in | |
| October | 80°F (27°C) | 4.8 in | |
| November | 79°F (26°C) | 9.4 in | |
| December | 79°F (26°C) | 12.2 in |
Sleman has a seasonal temperature swing of 15°F / from 65°F in July to 80°F in April. Total annual precipitation is 88.9 inches, with January being the wettest month (15.0") and August the driest (1.3").