Rolleston Weather in January
Average highs run from 23°C on January 1 to 24°C on January 31, and lows from 11°C to 12°C. Normal precipitation for the month is 68 mm over about 12 wet days.
January day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
January at a glance
- Average high
- 24°C
- Average low
- 11°C
- Precipitation
- 68 mm
- Reanalysis high
- 35°CJan 1, 2004
- Reanalysis low
- 5°CJan 4, 1995
- Daylight
- 15 h 22 min to 14 h 29 min
- Cloud cover
- 69%
- Humidity
- 66%
- Dew point
- 10°C
- Wind
- 16.9 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Reanalysis high | Reanalysis low | Chance wet |
|---|---|---|---|---|---|
| Jan 1 | 23°C | 11°C | 35°C 2004 | 6°C 2007 | 43% |
| Jan 2 | 23°C | 11°C | 33°C 2004 | 6°C 1992 | 44% |
| Jan 3 | 23°C | 11°C | 33°C 1998 | 6°C 1995 | 44% |
| Jan 4 | 23°C | 11°C | 33°C 2015 | 5°C 1995 | 44% |
| Jan 5 | 23°C | 11°C | 31°C 2019 | 7°C 1993 | 44% |
| Jan 6 | 23°C | 11°C | 29°C 2011 | 6°C 2017 | 44% |
| Jan 7 | 23°C | 11°C | 30°C 2008 | 7°C 1993 | 43% |
| Jan 8 | 23°C | 11°C | 33°C 2009 | 7°C 2017 | 42% |
| Jan 9 | 23°C | 11°C | 30°C 2018 | 7°C 2010 | 42% |
| Jan 10 | 23°C | 11°C | 32°C 2015 | 6°C 1991 | 40% |
| Jan 11 | 23°C | 11°C | 32°C 2004 | 7°C 2008 | 40% |
| Jan 12 | 23°C | 11°C | 30°C 2013 | 7°C 2000 | 40% |
| Jan 13 | 23°C | 11°C | 31°C 2008 | 8°C 1998 | 39% |
| Jan 14 | 23°C | 11°C | 32°C 1998 | 8°C 2014 | 39% |
| Jan 15 | 23°C | 11°C | 30°C 2009 | 7°C 2003 | 40% |
| Jan 16 | 24°C | 11°C | 34°C 2009 | 7°C 2006 | 40% |
| Jan 17 | 24°C | 11°C | 31°C 2008 | 8°C 2013 | 38% |
| Jan 18 | 24°C | 12°C | 31°C 1998 | 8°C 2007 | 38% |
| Jan 19 | 24°C | 12°C | 30°C 1999 | 9°C 2006 | 38% |
| Jan 20 | 24°C | 12°C | 35°C 1999 | 8°C 1997 | 36% |
| Jan 21 | 24°C | 12°C | 33°C 2008 | 7°C 2002 | 35% |
| Jan 22 | 24°C | 12°C | 31°C 2016 | 8°C 2015 | 35% |
| Jan 23 | 24°C | 12°C | 32°C 2009 | 8°C 1997 | 34% |
| Jan 24 | 24°C | 12°C | 33°C 1998 | 8°C 2014 | 34% |
| Jan 25 | 24°C | 12°C | 34°C 2018 | 7°C 1996 | 34% |
| Jan 26 | 24°C | 12°C | 31°C 2015 | 6°C 1996 | 33% |
| Jan 27 | 24°C | 12°C | 33°C 2019 | 6°C 2000 | 32% |
| Jan 28 | 24°C | 12°C | 32°C 2019 | 8°C 2012 | 33% |
| Jan 29 | 24°C | 12°C | 31°C 1998 | 9°C 2007 | 33% |
| Jan 30 | 24°C | 12°C | 35°C 2018 | 9°C 2011 | 32% |
| Jan 31 | 24°C | 12°C | 34°C 2019 | 7°C 1993 | 30% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+13).
- January 1
- sunrise 5:53 AM, sunset 9:15 PM
- January 31
- sunrise 6:29 AM, sunset 8:58 PM
Other months
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.