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Weather & Climate in Denham, Australia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Denham has a warm climate with an average annual temperature of 72°F (22°C). Winters average 82°F in January while summers reach 61°F in July / relatively mild seasonal variation. The area gets 320 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 8.7 inches (drier than the 38-inch national average). The city sits at an elevation of 36 feet.
Temperature
82°F Jan (28°C)
61°F Jul (16°C)
| Annual Average | 72.4°F |
| 34% above US avg | |
| January Average | 82°F (28°C) |
| July Average | 61°F (16°C) |
| Sunny Days | 320 days/yr |
Geography
| Elevation | 36 ft (11 m) |
| Area | 20.5 sq mi (53.2 km²) |
| Population Density | 35/sq mi |
| Coordinates | -25.9268°N, 113.5333°W |
| Timezone | Australia/Perth |
Precipitation & Snow
Air Quality
Earthquake History
3 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.9.
| Feb 15, 2007 | 26 km W of Denham, Australia | M4.9 | 26 km | 19 km |
| Dec 6, 1991 | 130 km SW of Denham, Australia | M3.8 | 131 km | 10 km |
| Apr 6, 2002 | 78 km ESE of Denham, Australia | M2.8 | 79 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
7 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 2.
| Year | Name | Category | Max Wind | Closest |
| 2026 | Narelle | Category 2 | — | 89 km |
| 2021 | Seroja | Category 1 | 75 mph | 148 km |
| 2015 | Olwyn | Category 2 | 86 mph | 41 km |
| 1999 | Vance | Category 2 | 92 mph | 208 km |
| 1996 | Frank | Category 1 | 58 mph | 264 km |
| 1995 | Bobby | Category 1 | 75 mph | 279 km |
| 1981 | Mabel | Category 2 | 104 mph | 236 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 82°F (28°C) | 0.2 in | |
| February | 84°F (29°C) | 0.6 in | Warmest |
| March | 81°F (27°C) | 0.6 in | |
| April | 76°F (24°C) | 0.7 in | |
| May | 69°F (21°C) | 1.5 in | |
| June | 63°F (17°C) | 1.7 in | Wettest |
| July | 61°F (16°C) | 1.7 in | Coldest |
| August | 63°F (17°C) | 0.9 in | |
| September | 67°F (19°C) | 0.4 in | |
| October | 71°F (22°C) | 0.4 in | |
| November | 75°F (24°C) | 0.2 in | |
| December | 79°F (26°C) | 0.1 in | Driest |
Denham has a seasonal temperature swing of 22°F / from 61°F in July to 84°F in February. Total annual precipitation is 8.7 inches, with June being the wettest month (1.7") and December the driest (0.1").