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Weather & Climate in Tandai, Solomon Islands
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Tandai has a warm climate with an average annual temperature of 79°F (26°C). Winters average 79°F in January while summers reach 78°F in July / relatively mild seasonal variation. The area gets 304 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 129.4 inches (wetter than the 38-inch national average). The city sits at an elevation of 213 feet.
Temperature
79°F Jan (26°C)
78°F Jul (26°C)
| Annual Average | 79.2°F |
| 47% above US avg | |
| January Average | 79°F (26°C) |
| July Average | 78°F (26°C) |
| Sunny Days | 304 days/yr |
Geography
| Elevation | 213 ft (65 m) |
| Area | 8.5 sq mi (22.0 km²) |
| Population Density | 2,897/sq mi |
| Coordinates | -9.4467°N, 159.9455°W |
| Timezone | Pacific/Guadalcanal |
Precipitation & Snow
Air Quality
Earthquake History
644 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.3.
| Jan 20, 2003 | 126 km W of Kirakira, Solomon Islands | M7.3 | 147 km | 33 km |
| Feb 9, 1991 | 68 km WSW of Malango, Solomon Islands | M6.9 | 103 km | 10 km |
| Aug 16, 2007 | 31 km WSW of Malango, Solomon Islands | M6.5 | 68 km | 15 km |
| Jul 25, 2012 | 1 km E of Malango, Solomon Islands | M6.4 | 37 km | 20 km |
| Feb 9, 1991 | 62 km WSW of Malango, Solomon Islands | M6.4 | 96 km | 10 km |
| Jan 8, 2000 | 15 km SE of Malango, Solomon Islands | M6.4 | 43 km | 33 km |
| Jan 10, 2017 | 104 km WNW of Kirakira, Solomon Islands | M6.3 | 140 km | 26 km |
| Mar 7, 2011 | 126 km W of Kirakira, Solomon Islands | M6.3 | 135 km | 22 km |
| Jan 27, 2020 | 102 km WNW of Kirakira, Solomon Islands | M6.3 | 142 km | 21 km |
| Jun 10, 2016 | 18 km WNW of Auki, Solomon Islands | M6.2 | 109 km | 30 km |
| Oct 6, 1997 | 120 km WNW of Malango, Solomon Islands | M6.1 | 139 km | 33 km |
| Dec 8, 1999 | 31 km ESE of Malango, Solomon Islands | M6.1 | 44 km | 33 km |
| Dec 14, 1994 | 38 km WNW of Malango, Solomon Islands | M6.1 | 59 km | 16 km |
| Sep 14, 2016 | 72 km NW of Malango, Solomon Islands | M6.0 | 86 km | 14 km |
| Oct 10, 1997 | 115 km WNW of Malango, Solomon Islands | M6.0 | 134 km | 33 km |
| Aug 25, 1992 | 65 km SE of Malango, Solomon Islands | M5.9 | 72 km | 27 km |
| May 19, 1992 | 50 km WNW of Malango, Solomon Islands | M5.8 | 69 km | 33 km |
| Mar 9, 1994 | 30 km NNW of Malango, Solomon Islands | M5.8 | 38 km | 10 km |
| Nov 2, 1995 | 10 km S of Malango, Solomon Islands | M5.8 | 47 km | 13 km |
| Jun 28, 2010 | 26 km SE of Auki, Solomon Islands | M5.8 | 115 km | 35 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
3 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 1.
| Year | Name | Category | Max Wind | Closest |
| 1997 | Fergus | Category 1 | 75 mph | 175 km |
| 1993 | Nina | Category 1 | 98 mph | 247 km |
| 1986 | Namu | Category 1 | 81 mph | 171 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
11 tsunamis recorded within 500 km. Highest wave on record: 10.5 m (34 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1939 | SOLOMON ISLANDS | Earthquake | 10.5 m | 12 | 80 km |
| 2003 | SOLOMON ISLANDS | Earthquake | 2.0 m | — | 147 km |
| 1926 | SOLOMON ISLANDS | Earthquake | 2.0 m | — | 53 km |
| 1950 | SOLOMON SEA | Earthquake | 1.2 m | — | 79 km |
| 1966 | SOLOMON ISLANDS | Earthquake | 0.2 m | — | 143 km |
| 1988 | SOLOMON ISLANDS | Earthquake | 0.1 m | 1 | 138 km |
| 1977 | SOLOMON ISLANDS | Earthquake | 0.0 m | 18 | 104 km |
| 2022 | SOLOMON ISLANDS | Earthquake | 0.0 m | — | 56 km |
| 1991 | SOLOMON ISLANDS | Earthquake | 0.0 m | — | 103 km |
| 1977 | SOLOMON ISLANDS | Earthquake | — | — | 66 km |
| 1926 | SOLOMON SEA | Earthquake | — | — | 105 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Gallego (26 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Gallego | Volcanic field | 1,000 m (3,281 ft) | Unknown | 26 km |
| Savo | Stratovolcano | 485 m (1,591 ft) | 1847 | 38 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 79°F (26°C) | 12.8 in | Wettest |
| February | 79°F (26°C) | 12.4 in | |
| March | 79°F (26°C) | 11.9 in | |
| April | 79°F (26°C) | 8.1 in | |
| May | 79°F (26°C) | 6.7 in | |
| June | 78°F (26°C) | 4.5 in | Driest |
| July | 78°F (26°C) | 5.2 in | |
| August | 78°F (25°C) | 6.1 in | Coldest |
| September | 78°F (26°C) | 6.7 in | |
| October | 79°F (26°C) | 7.2 in | |
| November | 79°F (26°C) | 7.6 in | |
| December | 80°F (26°C) | 9.3 in | Warmest |
Tandai has a seasonal temperature swing of 2°F / from 78°F in August to 80°F in December. Total annual precipitation is 98.5 inches, with January being the wettest month (12.8") and June the driest (4.5").