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Weather & Climate in Welahan, Indonesia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Welahan has a warm climate with an average annual temperature of 80°F (27°C). Winters average 79°F in January while summers reach 80°F in July / relatively mild seasonal variation. The area gets 188 sunny days per year. Annual precipitation totals 98.9 inches (wetter than the 38-inch national average). The city sits at an elevation of 13 feet.
Temperature
79°F Jan (26°C)
80°F Jul (26°C)
| Annual Average | 80.2°F |
| 49% above US avg | |
| January Average | 79°F (26°C) |
| July Average | 80°F (26°C) |
| Sunny Days | 188 days/yr |
Geography
| Elevation | 13 ft (4 m) |
| Area | 33.5 sq mi (86.9 km²) |
| Population Density | 780/sq mi |
| Coordinates | -6.8000°N, 110.7167°W |
| Timezone | Asia/Jakarta |
Precipitation & Snow
Air Quality
Earthquake History
106 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.6.
| Jul 6, 2020 | Java Sea | M6.6 | 133 km | 534 km |
| Sep 28, 1994 | 86 km NNW of Batang, Indonesia | M6.6 | 120 km | 638 km |
| Nov 15, 1994 | 114 km NNW of Batang, Indonesia | M6.5 | 147 km | 561 km |
| May 25, 2001 | 11 km NW of Srandakan, Indonesia | M6.3 | 133 km | 143 km |
| May 26, 2006 | 10 km E of Pundong, Indonesia | M6.3 | 133 km | 13 km |
| Sep 19, 2019 | 81 km NNE of Lasem, Indonesia | M6.1 | 149 km | 610 km |
| Sep 28, 1994 | 91 km NNW of Batang, Indonesia | M6.0 | 125 km | 628 km |
| Jul 11, 1997 | 87 km N of Batang, Indonesia | M6.0 | 123 km | 574 km |
| Dec 24, 1991 | 102 km NNW of Batang, Indonesia | M5.5 | 134 km | 533 km |
| Nov 28, 1993 | 109 km NNW of Batang, Indonesia | M5.5 | 143 km | 569 km |
| Sep 21, 2000 | 86 km N of Batang, Indonesia | M5.4 | 122 km | 561 km |
| Feb 24, 2002 | 89 km NNE of Batang, Indonesia | M5.2 | 124 km | 545 km |
| Jul 23, 1990 | 87 km NNE of Batang, Indonesia | M5.1 | 122 km | 583 km |
| Mar 14, 2017 | 111 km NNW of Batang, Indonesia | M5.1 | 144 km | 546 km |
| Jul 5, 1992 | 29 km W of Madiun, Indonesia | M5.1 | 114 km | 33 km |
| Sep 13, 2023 | 100 km NW of Batang, Indonesia | M5.0 | 131 km | 651 km |
| May 10, 1997 | Java Sea | M5.0 | 99 km | 600 km |
| Mar 13, 1994 | 11 km WSW of Madiun, Indonesia | M5.0 | 124 km | 97 km |
| Aug 8, 2011 | 83 km NNE of Tayu, Indonesia | M5.0 | 126 km | 510 km |
| Oct 4, 1994 | 79 km NW of Batang, Indonesia | M5.0 | 109 km | 652 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Nearby Volcanoes
11 volcanoes within 200 km. Closest: Muria (27 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Muria | Stratovolcano | 1,625 m (5,331 ft) | -160 | 27 km |
| Ungaran | Stratovolcano | 2,050 m (6,726 ft) | Unknown | 60 km |
| Telomoyo | Stratovolcano | 1,864 m (6,115 ft) | Unknown | 72 km |
| Merbabu | Stratovolcano | 3,118 m (10,230 ft) | 1797 | 79 km |
| Merapi | Stratovolcano | 2,910 m (9,547 ft) | 2020 | 88 km |
| Sumbing | Stratovolcano | 3,371 m (11,060 ft) | 1730 | 97 km |
| Sundoro | Stratovolcano | 3,136 m (10,289 ft) | 1971 | 97 km |
| Dieng Volcanic Complex | Complex | 2,565 m (8,415 ft) | 2018 | 103 km |
| Lawu | Stratovolcano | 3,265 m (10,712 ft) | 1885 | 106 km |
| Wilis | Stratovolcano | 2,563 m (8,409 ft) | Unknown | 161 km |
| Slamet | Stratovolcano | 3,428 m (11,247 ft) | 2014 | 174 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 79°F (26°C) | 22.5 in | Coldest, Wettest |
| February | 79°F (26°C) | 16.6 in | |
| March | 80°F (27°C) | 13.1 in | |
| April | 81°F (27°C) | 7.2 in | |
| May | 81°F (27°C) | 4.4 in | |
| June | 80°F (27°C) | 2.0 in | |
| July | 80°F (26°C) | 1.3 in | |
| August | 80°F (27°C) | 1.1 in | Driest |
| September | 81°F (27°C) | 2.4 in | |
| October | 82°F (28°C) | 4.4 in | Warmest |
| November | 81°F (27°C) | 8.2 in | |
| December | 80°F (27°C) | 15.8 in |
Welahan has a seasonal temperature swing of 3°F / from 79°F in January to 82°F in October. Total annual precipitation is 98.9 inches, with January being the wettest month (22.5") and August the driest (1.1").