January is one of the warmer months of the year in Te Anau, with average highs near 15.1°C and lows around 6.8°C (mean 11°C). It is a relatively wet time of year, averaging 186 mm of rainfall and 84% relative humidity across the period.
January is one of the warmer months of the year in Te Anau. Across 45 years of records, the warmest January in Te Anau was 2018 — when the month averaged 15.4°C — while the coldest was 1983 at 8.4°C. Typical January days reach 15.1°C with nights near 6.8°C. The long-term trend is warming, about 0.2°C per decade.
January is a relatively wet time of year in Te Anau, averaging 186 mm of rainfall. The wettest January on record was 2024 with 380 mm, while the driest was 1997 at 57 mm.
Relative humidity in Te Anau during January averages 84%. The most humid January was 1983 at 88%, and the least humid was 2023 at 77%.
January receives about 5.5 kWh/m²/day of solar energy in Te Anau. The sunniest January was 2025 at 6.9 kWh/m²/day, and the cloudiest were 2009 and 2017 at 4.5.
Average wind speed in Te Anau during January is 3.1 m/s. The windiest January was 2017 at 4.1 m/s, while the calmest was 2023 at 2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 10.9°C | 10.8°C | 10.8°C | 10.9°C | 11.9°C | +1°C |
| Avg High | 14.9°C | 15.0°C | 14.9°C | 15.0°C | 16.4°C | +1.5°C |
| Avg Low | 6.9°C | 6.6°C | 6.7°C | 6.7°C | 7.5°C | +0.6°C |
| Avg Rain | 193 mm | 161 mm | 164 mm | 229 mm | 184 mm | -9 mm |
January temperatures in Te Anau have risen by about 2.2°C between 1981–1985 and 2021–2025.
January has ranged from a record low of -0.2°C (1988) to a record high of 24.6°C (2023).
Rainfall in January is a relatively wet time of year, averaging 186 mm, with a wettest year of 380 mm.
One of the best times to visit Te Anau
January is one of the best times to visit Te Anau. Expect days averaging 15.1°C and nights around 6.8°C (mean 11°C) — warmer than Te Anau's yearly average — with higher rainfall (186 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 16.9°C | 11.9°C | 7.0°C | 21.9°C | 3.2°C | 127 mm | 80% | 2.1 m/s | 6.9 |
| 2024 🌧️ | 15.4°C | 11.4°C | 7.4°C | 21.0°C | 2.0°C | 380 mm | 86% | 3 m/s | 5.3 |
| 2023 | 19.4°C | 14.3°C | 9.1°C | 24.6°C | 4.1°C | 75 mm | 77% | 2 m/s | 6.8 |
| 2022 | 16.8°C | 12.3°C | 7.8°C | 21.9°C | 4.4°C | 93 mm | 84% | 2.4 m/s | 6.2 |
| 2021 | 13.9°C | 10.3°C | 6.7°C | 19.1°C | 2.5°C | 264 mm | 88% | 3.4 m/s | 5 |
| 2020 | 15.7°C | 11.3°C | 7.0°C | 21.6°C | 2.7°C | 167 mm | 83% | 3 m/s | 5.6 |
| 2019 | 15.5°C | 11.5°C | 7.5°C | 20.4°C | 2.7°C | 266 mm | 85% | 3.8 m/s | 4.8 |
| 2018 🔥 | 19.6°C | 15.4°C | 11.1°C | 22.5°C | 3.7°C | 179 mm | 83% | 2.7 m/s | 5.8 |
| 2017 | 12.1°C | 8.6°C | 5.1°C | 17.1°C | 1.8°C | 296 mm | 87% | 4.1 m/s | 4.5 |
| 2016 | 14.9°C | 10.7°C | 6.5°C | 19.9°C | 2.4°C | 367 mm | 85% | 3 m/s | 5.8 |
| 2015 | 16.0°C | 11.6°C | 7.2°C | 21.9°C | 3.0°C | 226 mm | 83% | 2.8 m/s | 5.8 |
| 2014 | 12.4°C | 8.7°C | 5.0°C | 19.7°C | 2.3°C | 225 mm | 86% | 3.6 m/s | 5.1 |
| 2013 | 14.6°C | 10.4°C | 6.2°C | 23.1°C | 1.6°C | 181 mm | 84% | 3.6 m/s | 5.6 |
| 2012 | 13.3°C | 9.2°C | 5.1°C | 19.9°C | 1.5°C | 178 mm | 84% | 3.4 m/s | 5.2 |
| 2011 | 15.8°C | 11.5°C | 7.2°C | 20.0°C | 3.0°C | 184 mm | 83% | 2.8 m/s | 5.7 |
| 2010 | 15.3°C | 10.9°C | 6.5°C | 22.7°C | 1.5°C | 188 mm | 84% | 2.9 m/s | 5.5 |
| 2009 | 14.7°C | 11.2°C | 7.6°C | 19.7°C | 3.3°C | 276 mm | 87% | 3.8 m/s | 4.5 |
| 2008 | 16.3°C | 11.5°C | 6.6°C | 21.5°C | 2.4°C | 140 mm | 82% | 3.1 m/s | 6.5 |
| 2007 | 15.3°C | 11.3°C | 7.2°C | 21.3°C | 2.4°C | 162 mm | 84% | 3.1 m/s | 5.6 |
| 2006 | 13.7°C | 9.6°C | 5.5°C | 21.7°C | 1.2°C | 135 mm | 85% | 3.9 m/s | 5.2 |
| 2005 | 15.3°C | 11.5°C | 7.7°C | 21.0°C | 2.1°C | 185 mm | 87% | 3.2 m/s | 5.5 |
| 2004 | 15.5°C | 11.5°C | 7.6°C | 19.9°C | 3.2°C | 174 mm | 85% | 3.4 m/s | 5.5 |
| 2003 | 14.0°C | 10.1°C | 6.2°C | 20.2°C | 2.5°C | 194 mm | 86% | 3.3 m/s | 5.4 |
| 2002 | 16.2°C | 11.7°C | 7.2°C | 20.8°C | 2.5°C | 96 mm | 83% | 2.6 m/s | 5.8 |
| 2001 | 13.1°C | 9.0°C | 4.9°C | 22.2°C | 1.7°C | 139 mm | 85% | 3.1 m/s | 5.6 |
| 2000 | 15.0°C | 10.8°C | 6.5°C | 20.9°C | 1.0°C | 135 mm | 83% | 2.5 m/s | 6.2 |
| 1999 | 17.4°C | 12.6°C | 7.9°C | 22.5°C | 2.7°C | 136 mm | 82% | 2.8 m/s | 6.2 |
| 1998 | 14.6°C | 10.9°C | 7.2°C | 20.6°C | 0.9°C | 155 mm | 85% | 3.7 m/s | 5.4 |
| 1997 | 14.4°C | 10.1°C | 5.7°C | 21.3°C | 0.9°C | 57 mm | 83% | 2.6 m/s | 5.8 |
| 1996 | 16.9°C | 12.8°C | 8.6°C | 22.4°C | 3.1°C | 160 mm | 84% | 2.2 m/s | 5.6 |
| 1995 | 15.2°C | 10.8°C | 6.3°C | 21.4°C | 1.1°C | 286 mm | 84% | 3.1 m/s | 5.8 |
| 1994 | 14.3°C | 10.4°C | 6.5°C | 20.3°C | 2.7°C | 214 mm | 85% | 3.7 m/s | 5.3 |
| 1993 | 12.9°C | 9.0°C | 5.1°C | 18.2°C | 2.1°C | 188 mm | 86% | 3.8 m/s | 5 |
| 1992 | 14.8°C | 10.6°C | 6.4°C | 19.0°C | 1.3°C | 131 mm | 84% | 3.1 m/s | 5.8 |
| 1991 | 14.9°C | 10.8°C | 6.7°C | 21.0°C | 1.2°C | 188 mm | 86% | 3.1 m/s | 5 |
| 1990 | 14.5°C | 10.2°C | 5.9°C | 17.7°C | 2.9°C | 92 mm | 84% | 3.5 m/s | 5.2 |
| 1989 | 17.7°C | 13.4°C | 9.0°C | 23.0°C | 3.6°C | 76 mm | 82% | 2.2 m/s | 6.1 |
| 1988 | 15.0°C | 10.7°C | 6.4°C | 19.3°C | -0.2°C | 160 mm | 84% | 3.5 m/s | 5 |
| 1987 | 16.1°C | 12.1°C | 8.0°C | 23.9°C | 3.6°C | 165 mm | 84% | 3.1 m/s | 5.3 |
| 1986 | 16.6°C | 12.8°C | 9.0°C | 22.9°C | 1.0°C | 152 mm | 84% | 2.8 m/s | 5.5 |
| 1985 | 14.7°C | 11.1°C | 7.5°C | 20.7°C | 4.2°C | 273 mm | 86% | 3.1 m/s | 4.9 |
| 1984 | 13.5°C | 9.2°C | 4.9°C | 19.2°C | 0.9°C | 267 mm | 84% | 2.8 m/s | 5.5 |
| 1983 ❄️ | 11.5°C | 8.4°C | 5.2°C | 19.8°C | 1.5°C | 268 mm | 88% | 3.9 m/s | — |
| 1982 | 13.5°C | 9.7°C | 5.8°C | 18.2°C | 1.6°C | 293 mm | 86% | 3.8 m/s | — |
| 1981 | 15.1°C | 10.7°C | 6.3°C | 20.0°C | 1.9°C | 82 mm | 83% | 3.4 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 15.1°C with lows near 6.8°C (mean 11°C), based on 45 years of NASA POWER data.
January averages 186 mm of rainfall in Te Anau, a relatively wet time of year. The wettest on record was 380 mm in 2024.
The hottest January reached 24.6°C in 2023. The coldest dipped to -0.2°C in 1988.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 2.2°C. Daytime highs moved from 13.7°C to 16.5°C and overnight lows from 5.9°C to 7.6°C over the same span.
January is one of the warmer months of the year in Te Anau and a relatively wet time of year, so plan for around 15.1°C daytime highs and 6.8°C at night.
Not quite — January is the 11th coolest month in Te Anau, averaging 11°C.
For January in Te Anau, pack warm layers and a jacket for chilly mornings, with typical highs of 15.1°C and lows of 6.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 84% — quite humid.
Average wind speed in January is 3.1 m/s. The windiest January on record averaged 4.1 m/s (2017).
The wettest January on record was 2024 with 380 mm. On average, January sees 186 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 Te Anau behaves each January, 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 January specifically, along with year-by-year records and how the month has changed over the decades.
