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Riwaka, New Zealand

Full City Profile

3.8 /5.0
B+ Good
986 Population 0/sq mi density
30 ft Elevation 9 meters
55°F Avg Temperature 13°C
B+
Overall
3.8 / 5.0
Good overall score based on economy, affordability, safety and education
B
Economy
3.2 / 5.0
$48,800 median income, 5.1% unemployment
A
Affordability
4.4 / 5.0
$197,600 home value, $988/mo rent
Riwaka experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 64°F in January while summers reach 46°F in July. The area gets 246 sunny days per year. Annual precipitation totals 49.3 inches. The area receives 0.0 inches of snow annually.

Temperature

64°F Jan (18°C) 46°F Jul (8°C)
Annual Average55.2°F
2% above US avg
January Average64°F (18°C)
July Average46°F (8°C)
Sunny Days246 days/yr

Geography

Elevation30 ft (9 m)
Area5,287.6 sq mi (13,694.8 km²)
Population Density0/sq mi
Coordinates-41.0833°N, 173.0000°W
TimezonePacific/Auckland

Precipitation & Snow

Annual Rainfall 49.3"
30% above US avg
Snowfall 0.0"
Wettest Month (Aug) 6.65"
Driest Month (Feb) 2.52"

Air Quality

Earthquake History

911 earthquakes (M2.5+) within 150 km since 1990. Strongest: M6.5. Most recent: M4.3 on Aug 30, 2025.

Aug 16, 2013 29 km SE of Blenheim, New Zealand M6.5 120 km
Jul 21, 2013 38 km ESE of Blenheim, New Zealand M6.5 131 km
Jul 3, 2012 63 km S of Opunake, New Zealand M6.3 134 km
Apr 24, 2015 73 km S of Wakefield, New Zealand M6.1 109 km
Feb 10, 1990 90 km N of Amberley, New Zealand M6.0 141 km
May 27, 1992 21 km WSW of Blenheim, New Zealand M6.0 85 km
Jan 28, 1991 29 km SSE of Westport, New Zealand M5.9 149 km
Jul 20, 2013 38 km ESE of Blenheim, New Zealand M5.9 131 km
Aug 16, 2013 30 km ESE of Blenheim, New Zealand M5.9 124 km
Aug 16, 2013 26 km SSE of Blenheim, New Zealand M5.9 114 km
Mar 22, 1995 27 km N of Picton, New Zealand M5.8 86 km
Jan 28, 1991 27 km SSE of Westport, New Zealand M5.7 148 km
Feb 10, 1990 90 km N of Amberley, New Zealand M5.7 145 km
Feb 15, 2023 55 km NW of Raumati Beach, New Zealand M5.7 142 km
Jul 18, 2013 38 km E of Blenheim, New Zealand M5.5 129 km
Aug 16, 2013 30 km SSE of Blenheim, New Zealand M5.5 120 km
Jan 5, 2017 36 km SSE of Blenheim, New Zealand M5.4 122 km
Jul 15, 2009 83 km SSW of Opunake, New Zealand M5.4 113 km
Aug 16, 2013 25 km SSE of Blenheim, New Zealand M5.4 116 km
Mar 13, 2005 83 km SSW of Opunake, New Zealand M5.4 112 km
Source: USGS (M2.5+, 1990–2025)

Tsunami History

5 tsunamis recorded within 500 km. Highest wave on record: 3.0 m (10 ft).

Year Location Cause Max Wave Deaths Distance
1868 NEW ZEALAND Earthquake 3.0 m — 98 km
1913 TASMAN SEA Earthquake 1.5 m — 148 km
2013 WELLINGTON Earthquake 0.1 m — 120 km
2013 COOK STRAIT Earthquake 0.1 m — 131 km
1855 WHARANUI Earthquake — — 131 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 64°F (18°C) 3.4 in
February 64°F (18°C) 2.5 in Warmest, Driest
March 62°F (16°C) 3.4 in
April 56°F (14°C) 4.4 in
May 51°F (11°C) 4.6 in
June 47°F (8°C) 4.7 in
July 46°F (8°C) 5.3 in Coldest
August 48°F (9°C) 6.7 in Wettest
September 51°F (11°C) 3.9 in
October 55°F (13°C) 3.7 in
November 58°F (14°C) 3.7 in
December 61°F (16°C) 3.2 in

Riwaka has a seasonal temperature swing of 18°F / from 46°F in July to 64°F in February. Total annual precipitation is 49.3 inches, with August being the wettest month (6.7") and February the driest (2.5").

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