January is one of the warmer months of the year in Victor Harbor, with average highs near 24.6°C and lows around 16.4°C (mean 20.5°C). It is one of the drier months, averaging 19 mm of rainfall and 62% relative humidity across the period.
January is one of the warmer months of the year in Victor Harbor. Across 45 years of records, the warmest Januarys in Victor Harbor were 2001 and 2019 — when the month averaged 22.7°C — while the coldest was 1992 at 17.7°C. Typical January days reach 24.6°C with nights near 16.4°C. The long-term trend is warming, about 0.3°C per decade.
January is one of the drier months in Victor Harbor, averaging 19 mm of rainfall. The wettest January on record was 2015 with 76 mm, while the driest was 2018 at 0 mm.
Relative humidity in Victor Harbor during January averages 62%. The most humid January was 2024 at 69%, and the least humid was 1988 at 57%.
January receives about 7.4 kWh/m²/day of solar energy in Victor Harbor. The sunniest January was 2009 at 8.2 kWh/m²/day, and the cloudiest were 2015 and 2022 at 6.7.
Average wind speed in Victor Harbor during January is 5.4 m/s. The windiest Januarys were 1994 and 2012 at 6.1 m/s, while the calmest was 1993 at 4.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 20.1°C | 19.9°C | 20.4°C | 21.3°C | 20.9°C | +0.8°C |
| Avg High | 24.4°C | 23.9°C | 24.5°C | 25.4°C | 24.8°C | +0.4°C |
| Avg Low | 15.8°C | 15.9°C | 16.3°C | 17.2°C | 16.9°C | +1.1°C |
| Avg Rain | 15 mm | 18 mm | 16 mm | 22 mm | 23 mm | +8 mm |
January temperatures in Victor Harbor have risen by about 0.4°C between 1981–1985 and 2021–2025.
January has ranged from a record low of 11.1°C (1987) to a record high of 40°C (2019).
Rainfall in January is one of the drier months, averaging 19 mm, with a wettest year of 76 mm.
One of the best times to visit Victor Harbor
January is one of the best times to visit Victor Harbor. Expect days averaging 24.6°C and nights around 16.4°C (mean 20.5°C) — warmer than Victor Harbor's yearly average — with low rainfall (19 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 | 25.8°C | 21.8°C | 17.7°C | 33.8°C | 14.0°C | 0 mm | 61% | 5.2 m/s | 7.8 |
| 2024 | 23.8°C | 20.1°C | 16.3°C | 33.4°C | 13.6°C | 61 mm | 69% | 4.9 m/s | 7.2 |
| 2023 | 24.4°C | 20.3°C | 16.1°C | 33.9°C | 13.6°C | 17 mm | 66% | 5.4 m/s | 7.6 |
| 2022 | 26.0°C | 22.2°C | 18.4°C | 35.4°C | 14.4°C | 26 mm | 66% | 5.1 m/s | 6.7 |
| 2021 | 24.0°C | 20.0°C | 15.9°C | 34.8°C | 14.2°C | 26 mm | 64% | 5.4 m/s | 7.2 |
| 2020 | 24.8°C | 20.8°C | 16.8°C | 38.6°C | 13.7°C | 6 mm | 61% | 5.3 m/s | 7.3 |
| 2019 | 27.5°C | 22.7°C | 17.9°C | 40.0°C | 14.8°C | 0 mm | 58% | 4.9 m/s | 7.9 |
| 2018 | 26.2°C | 22.1°C | 17.9°C | 37.5°C | 15.5°C | 0 mm | 59% | 5.4 m/s | 7.3 |
| 2017 | 25.8°C | 21.5°C | 17.2°C | 36.7°C | 14.2°C | 1 mm | 61% | 5 m/s | 7.4 |
| 2016 | 24.9°C | 20.9°C | 17.0°C | 33.0°C | 14.6°C | 20 mm | 64% | 5.4 m/s | 7.3 |
| 2015 🌧️ | 23.7°C | 20.2°C | 16.7°C | 35.3°C | 14.1°C | 76 mm | 66% | 5.7 m/s | 6.7 |
| 2014 | 26.1°C | 21.7°C | 17.4°C | 39.5°C | 13.4°C | 18 mm | 60% | 5.7 m/s | 7.6 |
| 2013 | 24.6°C | 20.6°C | 16.5°C | 36.9°C | 13.5°C | 13 mm | 60% | 5.3 m/s | 7.7 |
| 2012 | 25.6°C | 21.5°C | 17.4°C | 35.9°C | 14.2°C | 14 mm | 60% | 6.1 m/s | 7.3 |
| 2011 | 24.2°C | 20.5°C | 16.8°C | 35.2°C | 13.6°C | 51 mm | 66% | 4.8 m/s | 7.3 |
| 2010 | 25.1°C | 20.9°C | 16.7°C | 35.9°C | 14.4°C | 25 mm | 59% | 5 m/s | 7.7 |
| 2009 | 25.7°C | 21.2°C | 16.7°C | 39.3°C | 12.4°C | 1 mm | 58% | 5.2 m/s | 8.2 |
| 2008 | 24.1°C | 20.0°C | 15.9°C | 34.7°C | 13.6°C | 6 mm | 67% | 5.7 m/s | 8 |
| 2007 | 24.6°C | 20.9°C | 17.2°C | 34.0°C | 14.1°C | 52 mm | 65% | 5.4 m/s | 7 |
| 2006 | 25.3°C | 21.1°C | 17.0°C | 36.9°C | 14.0°C | 25 mm | 65% | 5.6 m/s | 6.9 |
| 2005 | 24.5°C | 20.4°C | 16.3°C | 35.5°C | 12.9°C | 15 mm | 63% | 5.2 m/s | 7.3 |
| 2004 | 20.8°C | 17.8°C | 14.8°C | 30.6°C | 13.0°C | 11 mm | 68% | 5.4 m/s | 7.1 |
| 2003 | 25.6°C | 20.8°C | 16.1°C | 37.1°C | 12.6°C | 24 mm | 58% | 5.6 m/s | 7.7 |
| 2002 | 22.5°C | 18.6°C | 14.7°C | 34.5°C | 12.5°C | 16 mm | 66% | 5.4 m/s | 7.2 |
| 2001 🔥 | 27.4°C | 22.7°C | 18.0°C | 39.7°C | 14.8°C | 4 mm | 59% | 5.3 m/s | 7.6 |
| 2000 | 24.2°C | 20.3°C | 16.3°C | 34.8°C | 12.4°C | 11 mm | 61% | 5.7 m/s | 7.1 |
| 1999 | 25.6°C | 21.2°C | 16.8°C | 35.2°C | 13.9°C | 12 mm | 65% | 5.7 m/s | 7.6 |
| 1998 | 24.0°C | 20.0°C | 15.9°C | 33.0°C | 13.4°C | 10 mm | 66% | 5.6 m/s | 7.5 |
| 1997 | 25.0°C | 20.7°C | 16.3°C | 33.6°C | 13.0°C | 41 mm | 61% | 5.5 m/s | 7.3 |
| 1996 | 23.0°C | 19.0°C | 14.9°C | 36.8°C | 12.3°C | 12 mm | 66% | 6 m/s | 7.1 |
| 1995 | 24.6°C | 20.3°C | 16.1°C | 34.5°C | 12.6°C | 30 mm | 65% | 5.5 m/s | 7.4 |
| 1994 | 22.3°C | 18.6°C | 15.0°C | 36.4°C | 12.0°C | 23 mm | 64% | 6.1 m/s | 7.2 |
| 1993 | 24.9°C | 20.7°C | 16.6°C | 36.2°C | 13.1°C | 26 mm | 68% | 4.4 m/s | 7.1 |
| 1992 ❄️ | 21.0°C | 17.7°C | 14.3°C | 31.8°C | 12.2°C | 4 mm | 66% | 5.8 m/s | 7.2 |
| 1991 | 24.8°C | 20.8°C | 16.8°C | 37.4°C | 14.1°C | 15 mm | 63% | 5.7 m/s | 7.5 |
| 1990 | 24.2°C | 20.2°C | 16.1°C | 35.3°C | 12.6°C | 9 mm | 61% | 5.7 m/s | 7.2 |
| 1989 | 24.3°C | 20.2°C | 16.2°C | 34.8°C | 12.8°C | 4 mm | 60% | 5.9 m/s | 7.5 |
| 1988 | 25.9°C | 21.3°C | 16.7°C | 35.7°C | 14.1°C | 20 mm | 57% | 5.1 m/s | 7.4 |
| 1987 | 22.1°C | 18.2°C | 14.2°C | 32.5°C | 11.1°C | 17 mm | 62% | 5.4 m/s | 7.3 |
| 1986 | 22.8°C | 18.8°C | 14.7°C | 32.9°C | 13.2°C | 7 mm | 62% | 5.7 m/s | 7.8 |
| 1985 | 24.5°C | 20.1°C | 15.6°C | 35.3°C | 13.3°C | 5 mm | 60% | 5.3 m/s | 7.4 |
| 1984 | 23.0°C | 19.2°C | 15.4°C | 31.2°C | 13.3°C | 11 mm | 63% | 5.4 m/s | 7.1 |
| 1983 | 24.0°C | 19.5°C | 15.1°C | 36.6°C | 12.3°C | 9 mm | 58% | 5.4 m/s | — |
| 1982 | 26.3°C | 21.7°C | 17.1°C | 38.4°C | 14.5°C | 20 mm | 58% | 5.3 m/s | — |
| 1981 | 26.8°C | 22.1°C | 17.5°C | 37.2°C | 14.4°C | 40 mm | 60% | 5.4 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 24.6°C with lows near 16.4°C (mean 20.5°C), based on 45 years of NASA POWER data.
January averages 19 mm of rainfall in Victor Harbor, one of the drier months. The wettest on record was 76 mm in 2015.
The hottest January reached 40°C in 2019. The coldest dipped to 11.1°C in 1987.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 0.4°C — but days and nights have moved in opposite directions. Overnight lows rose from 16.1°C to 16.9°C while daytime highs eased from 24.9°C to 24.8°C, narrowing the gap between day and night.
January is one of the warmer months of the year in Victor Harbor and one of the drier months, so plan for around 24.6°C daytime highs and 16.4°C at night.
Not quite — January is the 11th coolest month in Victor Harbor, averaging 20.5°C.
For January in Victor Harbor, pack light layers you can adjust through the day, with typical highs of 24.6°C and lows of 16.4°C.
Relative humidity in January averages 62% — moderately humid.
Average wind speed in January is 5.4 m/s. The windiest January on record averaged 6.1 m/s (1994).
The wettest January on record was 2015 with 76 mm. On average, January sees 19 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 Victor Harbor 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.
