October is one of the cooler months of the year in New Plymouth, with average highs near 14.9°C and lows around 9.3°C (mean 12.1°C). It is about average for rainfall, averaging 112 mm of rainfall and 85% relative humidity across the period.
October is one of the cooler months of the year in New Plymouth. Across 45 years of records, the warmest October in New Plymouth was 2001 — when the month averaged 13.8°C — while the coldest was 2009 at 10.5°C. Typical October days reach 14.9°C with nights near 9.3°C. The long-term October temperature trend is broadly flat.
October is about average for rainfall in New Plymouth, averaging 112 mm of rainfall. The wettest October on record was 1998 with 261 mm, while the driest was 1999 at 35 mm.
Relative humidity in New Plymouth during October averages 85%. The most humid October was 2025 at 88%, and the least humid was 1985 at 80%.
October receives about 4.8 kWh/m²/day of solar energy in New Plymouth. The sunniest October was 2010 at 5.5 kWh/m²/day, and the cloudiest were 2001 and 2025 at 4.2.
Average wind speed in New Plymouth during October is 4.5 m/s. The windiest October was 1998 at 6.1 m/s, while the calmest was 2018 at 3.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 12.2°C | 11.9°C | 11.9°C | 12.1°C | 12.7°C | +0.5°C |
| Avg High | 15.1°C | 14.7°C | 14.7°C | 14.9°C | 15.4°C | +0.3°C |
| Avg Low | 9.2°C | 9.1°C | 9.0°C | 9.4°C | 10.0°C | +0.8°C |
| Avg Rain | 101 mm | 123 mm | 105 mm | 100 mm | 144 mm | +43 mm |
October temperatures in New Plymouth have risen by about 0.8°C between 1981–1985 and 2021–2025.
October has ranged from a record low of 2.1°C (1994) to a record high of 20.7°C (1983).
Rainfall in October is about average for rainfall, averaging 112 mm, with a wettest year of 261 mm.
A good time to visit New Plymouth
October is a good time to visit New Plymouth, with days averaging 14.9°C and nights around 9.3°C (mean 12.1°C, cooler than New Plymouth's yearly average) and higher rainfall. February and January are marginally more temperate, but October still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 15.3°C | 12.9°C | 10.6°C | 18.0°C | 8.6°C | 203 mm | 88% | 5 m/s | 4.2 |
| 2024 | 15.1°C | 12.5°C | 9.9°C | 18.2°C | 5.4°C | 140 mm | 86% | 4.2 m/s | 5.1 |
| 2023 | 15.4°C | 12.4°C | 9.4°C | 20.0°C | 3.3°C | 77 mm | 86% | 4.2 m/s | 4.9 |
| 2022 | 15.3°C | 12.4°C | 9.6°C | 18.7°C | 4.8°C | 171 mm | 85% | 3.8 m/s | 4.8 |
| 2021 | 15.5°C | 12.9°C | 10.3°C | 18.9°C | 5.5°C | 138 mm | 86% | 4 m/s | 5 |
| 2020 | 16.0°C | 13.1°C | 10.2°C | 18.7°C | 4.2°C | 139 mm | 87% | 3.5 m/s | 4.6 |
| 2019 | 14.6°C | 11.9°C | 9.3°C | 17.8°C | 5.6°C | 120 mm | 86% | 4.7 m/s | 4.9 |
| 2018 | 15.2°C | 12.2°C | 9.1°C | 18.2°C | 4.3°C | 84 mm | 85% | 3.4 m/s | 4.9 |
| 2017 | 15.1°C | 12.7°C | 10.3°C | 18.6°C | 4.8°C | 71 mm | 87% | 4.2 m/s | 4.9 |
| 2016 | 15.1°C | 12.3°C | 9.6°C | 17.6°C | 4.1°C | 111 mm | 85% | 4.5 m/s | 5.2 |
| 2015 | 14.6°C | 12.0°C | 9.5°C | 16.5°C | 5.7°C | 63 mm | 86% | 4.5 m/s | 5.1 |
| 2014 | 15.1°C | 12.0°C | 8.9°C | 18.9°C | 3.9°C | 84 mm | 84% | 4.5 m/s | 5 |
| 2013 | 14.9°C | 12.4°C | 9.9°C | 17.7°C | 5.4°C | 118 mm | 86% | 4.6 m/s | 4.8 |
| 2012 | 14.2°C | 11.5°C | 8.8°C | 19.3°C | 4.2°C | 113 mm | 83% | 5.2 m/s | 5.1 |
| 2011 | 15.1°C | 12.6°C | 10.0°C | 18.4°C | 4.5°C | 187 mm | 87% | 4.1 m/s | 4.4 |
| 2010 | 14.9°C | 11.8°C | 8.7°C | 18.5°C | 4.7°C | 49 mm | 83% | 4.3 m/s | 5.5 |
| 2009 ❄️ | 13.4°C | 10.5°C | 7.5°C | 16.1°C | 4.3°C | 130 mm | 84% | 4.7 m/s | 4.4 |
| 2008 | 14.6°C | 12.1°C | 9.6°C | 16.8°C | 6.0°C | 96 mm | 85% | 4.8 m/s | 4.8 |
| 2007 | 14.2°C | 11.4°C | 8.7°C | 16.5°C | 3.7°C | 91 mm | 83% | 5.6 m/s | 4.8 |
| 2006 | 14.0°C | 11.5°C | 8.9°C | 16.8°C | 4.2°C | 107 mm | 84% | 5.1 m/s | 4.4 |
| 2005 | 15.7°C | 12.6°C | 9.5°C | 19.0°C | 5.3°C | 121 mm | 83% | 3.7 m/s | 5.1 |
| 2004 | 14.6°C | 11.8°C | 9.0°C | 17.9°C | 2.6°C | 102 mm | 86% | 4.4 m/s | 4.5 |
| 2003 | 14.9°C | 11.8°C | 8.6°C | 18.4°C | 2.6°C | 120 mm | 83% | 4.2 m/s | 5.1 |
| 2002 | 13.8°C | 10.7°C | 7.7°C | 15.9°C | 3.3°C | 68 mm | 82% | 4.8 m/s | 5.1 |
| 2001 🔥 | 16.6°C | 13.8°C | 11.0°C | 19.2°C | 5.0°C | 134 mm | 86% | 4.7 m/s | 4.2 |
| 2000 | 15.6°C | 12.4°C | 9.2°C | 18.9°C | 2.6°C | 77 mm | 83% | 4.9 m/s | 5 |
| 1999 | 16.2°C | 13.2°C | 10.2°C | 18.7°C | 4.8°C | 35 mm | 85% | 4.1 m/s | 5.1 |
| 1998 🌧️ | 15.2°C | 12.9°C | 10.7°C | 17.3°C | 7.6°C | 261 mm | 85% | 6.1 m/s | 4.5 |
| 1997 | 14.7°C | 11.9°C | 9.0°C | 18.8°C | 5.8°C | 93 mm | 85% | 4.7 m/s | 4.9 |
| 1996 | 14.8°C | 12.0°C | 9.1°C | 17.3°C | 5.7°C | 119 mm | 85% | 4.3 m/s | 5 |
| 1995 | 14.5°C | 11.8°C | 9.1°C | 18.7°C | 4.3°C | 135 mm | 87% | 4 m/s | 4.6 |
| 1994 | 14.0°C | 10.8°C | 7.7°C | 18.4°C | 2.1°C | 129 mm | 86% | 4.3 m/s | 5 |
| 1993 | 14.7°C | 11.9°C | 9.2°C | 18.0°C | 6.0°C | 81 mm | 85% | 4.2 m/s | 5 |
| 1992 | 13.7°C | 10.7°C | 7.7°C | 17.0°C | 3.6°C | 173 mm | 87% | 4.4 m/s | 4.6 |
| 1991 | 14.0°C | 11.3°C | 8.5°C | 17.6°C | 5.9°C | 116 mm | 86% | 4.4 m/s | 5.2 |
| 1990 | 15.5°C | 12.8°C | 10.0°C | 19.1°C | 5.6°C | 90 mm | 87% | 4.1 m/s | 5.1 |
| 1989 | 15.7°C | 13.2°C | 10.7°C | 18.3°C | 5.7°C | 170 mm | 86% | 5 m/s | 4.6 |
| 1988 | 14.7°C | 12.3°C | 9.8°C | 18.0°C | 4.8°C | 134 mm | 87% | 5.7 m/s | 4.5 |
| 1987 | 15.2°C | 12.4°C | 9.5°C | 18.4°C | 5.1°C | 117 mm | 85% | 4.5 m/s | 4.7 |
| 1986 | 15.3°C | 12.6°C | 9.8°C | 17.6°C | 7.8°C | 94 mm | 85% | 3.9 m/s | 4.7 |
| 1985 | 15.6°C | 11.9°C | 8.1°C | 19.6°C | 4.2°C | 71 mm | 80% | 4.1 m/s | 5.3 |
| 1984 | 14.9°C | 11.7°C | 8.5°C | 18.3°C | 3.6°C | 43 mm | 82% | 4.5 m/s | 5 |
| 1983 | 15.7°C | 12.8°C | 9.9°C | 20.7°C | 4.5°C | 108 mm | 86% | 4.4 m/s | — |
| 1982 | 13.6°C | 10.8°C | 7.9°C | 17.2°C | 4.4°C | 102 mm | 83% | 4.8 m/s | — |
| 1981 | 15.0°C | 11.9°C | 8.9°C | 17.2°C | 3.0°C | 75 mm | 86% | 4.7 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 14.9°C with lows near 9.3°C (mean 12.1°C), based on 45 years of NASA POWER data.
October averages 112 mm of rainfall in New Plymouth, about average for rainfall. The wettest on record was 261 mm in 1998.
The hottest October reached 20.7°C in 1983. The coldest dipped to 2.1°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 0.8°C. Daytime highs moved from 15°C to 15.3°C and overnight lows from 8.7°C to 10°C over the same span.
October is one of the cooler months of the year in New Plymouth and about average for rainfall, so plan for around 14.9°C daytime highs and 9.3°C at night.
Not quite — October is the 5th coolest month in New Plymouth, averaging 12.1°C.
For October in New Plymouth, pack light layers you can adjust through the day, with typical highs of 14.9°C and lows of 9.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in October averages 85% — quite humid.
Average wind speed in October is 4.5 m/s. The windiest October on record averaged 6.1 m/s (1998).
The wettest October on record was 1998 with 261 mm. On average, October sees 112 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in New Plymouth behaves each October, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for October specifically, along with year-by-year records and how the month has changed over the decades.
