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Weather & Climate in Demak, Indonesia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Demak has a warm climate with an average annual temperature of 81°F (27°C). Winters average 79°F in January while summers reach 80°F in July / relatively mild seasonal variation. The area gets 187 sunny days per year. Annual precipitation totals 88.1 inches (wetter than the 38-inch national average). The city sits at an elevation of 30 feet.
Temperature
79°F Jan (26°C)
80°F Jul (27°C)
| Annual Average | 80.5°F |
| 49% above US avg | |
| January Average | 79°F (26°C) |
| July Average | 80°F (27°C) |
| Sunny Days | 187 days/yr |
Geography
| Elevation | 30 ft (9 m) |
| Area | 502.5 sq mi (1,301.4 km²) |
| Population Density | 54/sq mi |
| Coordinates | -6.8909°N, 110.6396°W |
| Timezone | Asia/Jakarta |
Precipitation & Snow
Air Quality
Earthquake History
103 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.6.
| Sep 28, 1994 | 86 km NNW of Batang, Indonesia | M6.6 | 127 km | 638 km |
| Jul 6, 2020 | Java Sea | M6.6 | 143 km | 534 km |
| May 25, 2001 | 11 km NW of Srandakan, Indonesia | M6.3 | 120 km | 143 km |
| May 26, 2006 | 10 km E of Pundong, Indonesia | M6.3 | 121 km | 13 km |
| Jul 11, 1997 | 87 km N of Batang, Indonesia | M6.0 | 134 km | 574 km |
| Sep 28, 1994 | 91 km NNW of Batang, Indonesia | M6.0 | 133 km | 628 km |
| Nov 28, 1993 | 109 km NNW of Batang, Indonesia | M5.5 | 149 km | 569 km |
| Dec 24, 1991 | 102 km NNW of Batang, Indonesia | M5.5 | 141 km | 533 km |
| Sep 21, 2000 | 86 km N of Batang, Indonesia | M5.4 | 131 km | 561 km |
| Feb 24, 2002 | 89 km NNE of Batang, Indonesia | M5.2 | 135 km | 545 km |
| Jul 23, 1990 | 87 km NNE of Batang, Indonesia | M5.1 | 134 km | 583 km |
| Jul 5, 1992 | 29 km W of Madiun, Indonesia | M5.1 | 111 km | 33 km |
| Mar 14, 2017 | 111 km NNW of Batang, Indonesia | M5.1 | 150 km | 546 km |
| Mar 13, 1994 | 11 km WSW of Madiun, Indonesia | M5.0 | 123 km | 97 km |
| Sep 13, 2023 | 100 km NW of Batang, Indonesia | M5.0 | 137 km | 651 km |
| May 10, 1997 | Java Sea | M5.0 | 109 km | 600 km |
| Oct 4, 1994 | 79 km NW of Batang, Indonesia | M5.0 | 114 km | 652 km |
| Aug 8, 2011 | 83 km NNE of Tayu, Indonesia | M5.0 | 139 km | 510 km |
| Jun 24, 2019 | 103 km NNW of Batang, Indonesia | M4.9 | 145 km | 550 km |
| Jul 11, 1997 | 85 km N of Batang, Indonesia | M4.9 | 132 km | 571 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Nearby Volcanoes
11 volcanoes within 200 km. Closest: Muria (40 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Muria | Stratovolcano | 1,625 m (5,331 ft) | -160 | 40 km |
| Ungaran | Stratovolcano | 2,050 m (6,726 ft) | Unknown | 47 km |
| Telomoyo | Stratovolcano | 1,864 m (6,115 ft) | Unknown | 59 km |
| Merbabu | Stratovolcano | 3,118 m (10,230 ft) | 1797 | 66 km |
| Merapi | Stratovolcano | 2,910 m (9,547 ft) | 2020 | 75 km |
| Sumbing | Stratovolcano | 3,371 m (11,060 ft) | 1730 | 83 km |
| Sundoro | Stratovolcano | 3,136 m (10,289 ft) | 1971 | 85 km |
| Dieng Volcanic Complex | Complex | 2,565 m (8,415 ft) | 2018 | 91 km |
| Lawu | Stratovolcano | 3,265 m (10,712 ft) | 1885 | 102 km |
| Wilis | Stratovolcano | 2,563 m (8,409 ft) | Unknown | 160 km |
| Slamet | Stratovolcano | 3,428 m (11,247 ft) | 2014 | 163 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 79°F (26°C) | 18.5 in | Coldest, Wettest |
| February | 79°F (26°C) | 12.9 in | |
| March | 80°F (27°C) | 10.9 in | |
| April | 81°F (27°C) | 7.1 in | |
| May | 81°F (27°C) | 4.7 in | |
| June | 80°F (27°C) | 2.3 in | |
| July | 80°F (27°C) | 1.8 in | |
| August | 81°F (27°C) | 1.5 in | Driest |
| September | 82°F (28°C) | 2.5 in | |
| October | 82°F (28°C) | 5.1 in | Warmest |
| November | 81°F (27°C) | 8.4 in | |
| December | 80°F (27°C) | 12.4 in |
Demak has a seasonal temperature swing of 3°F / from 79°F in January to 82°F in October. Total annual precipitation is 88.1 inches, with January being the wettest month (18.5") and August the driest (1.5").