Wellington's average temperature over the last 30 years is around 13.4°C. Jan is typically the hottest month and Jul the coldest, with total annual rainfall averaging about 922 mm.
| Year | Max Temp | Min Temp | Precipitation |
|---|---|---|---|
| 2025 | 24°C | 5°C | 1063 mm |
| 2024 | 25°C | 4°C | 870 mm |
| 2023 | 24°C | 3°C | 1019 mm |
| 2022 | 24°C | 4°C | 1334 mm |
| 2021 | 23°C | 5°C | 1024 mm |
| 2020 | 23°C | 4°C | 1063 mm |
| 2019 | 25°C | 2°C | 1003 mm |
| 2018 | 26°C | 4°C | 1156 mm |
| 2017 | 24°C | 4°C | 1084 mm |
| 2016 | 22°C | 4°C | 947 mm |
| 2015 | 22°C | 4°C | 786 mm |
| 2014 | 22°C | 5°C | 811 mm |
| 2013 | 21°C | 5°C | 972 mm |
| 2012 | 22°C | 5°C | 823 mm |
| 2011 | 22°C | 4°C | 965 mm |
| 2010 | 21°C | 4°C | 846 mm |
| 2009 | 21°C | 3°C | 865 mm |
| 2008 | 23°C | 3°C | 964 mm |
| 2007 | 21°C | 4°C | 654 mm |
| 2006 | 21°C | 4°C | 1088 mm |
| 2005 | 21°C | 5°C | 678 mm |
| 2004 | 22°C | 4°C | 1138 mm |
| 2003 | 21°C | 5°C | 807 mm |
| 2002 | 21°C | 5°C | 712 mm |
| 2001 | 20°C | 3°C | 747 mm |
| 2000 | 21°C | 4°C | 776 mm |
| 1999 | 22°C | 5°C | 857 mm |
| 1998 | 22°C | 5°C | 882 mm |
| 1997 | 21°C | 4°C | 738 mm |
| 1996 | 20°C | 4°C | 1013 mm |
| Month | Avg High | Avg Low | Rainfall |
|---|---|---|---|
| Jan | 19°C | 15°C | 53 mm |
| Feb | 19°C | 15°C | 63 mm |
| Mar | 18°C | 14°C | 62 mm |
| Apr | 16°C | 13°C | 75 mm |
| May | 14°C | 11°C | 79 mm |
| Jun | 13°C | 10°C | 95 mm |
| Jul | 12°C | 9°C | 97 mm |
| Aug | 12°C | 9°C | 88 mm |
| Sep | 13°C | 10°C | 75 mm |
| Oct | 14°C | 11°C | 89 mm |
| Nov | 15°C | 12°C | 71 mm |
| Dec | 17°C | 14°C | 75 mm |