Mariāni Weather in December
Average highs run from 24°C on December 1 to 21°C on December 31, and lows from 13°C to 10°C. Normal precipitation for the month is 9 mm over about 3 wet days.
December day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
December at a glance
- Average high
- 22°C
- Average low
- 12°C
- Precipitation
- 9 mm
- Reanalysis high
- 27°CDec 22, 2001
- Reanalysis low
- 6°CDec 31, 1991
- Daylight
- 10 h 35 min to 10 h 29 min
- Cloud cover
- 30%
- Humidity
- 72%
- Dew point
- 10°C
- Wind
- 5.0 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 |
|---|---|---|---|---|---|
| Dec 1 | 24°C | 13°C | 26°C 2015 | 9°C 1991 | 7% |
| Dec 2 | 23°C | 13°C | 25°C 2015 | 9°C 1991 | 8% |
| Dec 3 | 23°C | 13°C | 25°C 2015 | 10°C 2006 | 8% |
| Dec 4 | 23°C | 13°C | 25°C 2012 | 9°C 2004 | 8% |
| Dec 5 | 23°C | 13°C | 26°C 1998 | 10°C 2000 | 9% |
| Dec 6 | 23°C | 13°C | 26°C 2016 | 10°C 2000 | 9% |
| Dec 7 | 23°C | 13°C | 26°C 2016 | 9°C 1992 | 9% |
| Dec 8 | 23°C | 12°C | 26°C 2016 | 9°C 1992 | 9% |
| Dec 9 | 23°C | 12°C | 25°C 2016 | 9°C 1994 | 8% |
| Dec 10 | 23°C | 12°C | 25°C 2016 | 10°C 2007 | 8% |
| Dec 11 | 23°C | 12°C | 25°C 2016 | 10°C 1992 | 8% |
| Dec 12 | 23°C | 12°C | 26°C 2016 | 9°C 1994 | 8% |
| Dec 13 | 23°C | 12°C | 25°C 2004 | 9°C 1994 | 9% |
| Dec 14 | 23°C | 12°C | 26°C 2016 | 9°C 1992 | 9% |
| Dec 15 | 22°C | 12°C | 24°C 2016 | 9°C 1996 | 8% |
| Dec 16 | 22°C | 12°C | 26°C 2006 | 8°C 2013 | 8% |
| Dec 17 | 22°C | 11°C | 26°C 2016 | 7°C 2013 | 8% |
| Dec 18 | 22°C | 11°C | 24°C 2016 | 9°C 2013 | 7% |
| Dec 19 | 22°C | 11°C | 25°C 2001 | 9°C 2013 | 7% |
| Dec 20 | 22°C | 11°C | 25°C 2001 | 9°C 2013 | 7% |
| Dec 21 | 22°C | 11°C | 26°C 2001 | 8°C 1997 | 7% |
| Dec 22 | 22°C | 11°C | 27°C 2001 | 8°C 2007 | 7% |
| Dec 23 | 22°C | 11°C | 26°C 2000 | 8°C 2009 | 7% |
| Dec 24 | 22°C | 11°C | 25°C 2000 | 8°C 1999 | 7% |
| Dec 25 | 22°C | 11°C | 25°C 2000 | 8°C 1997 | 6% |
| Dec 26 | 22°C | 11°C | 24°C 2001 | 7°C 1997 | 6% |
| Dec 27 | 22°C | 11°C | 25°C 2001 | 7°C 2004 | 7% |
| Dec 28 | 22°C | 11°C | 24°C 2001 | 7°C 2004 | 8% |
| Dec 29 | 22°C | 11°C | 24°C 2001 | 7°C 1991 | 8% |
| Dec 30 | 21°C | 10°C | 24°C 2016 | 6°C 1991 | 8% |
| Dec 31 | 21°C | 10°C | 25°C 1996 | 6°C 1991 | 9% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+5:30).
- December 1
- sunrise 5:44 AM, sunset 4:19 PM
- December 31
- sunrise 6:01 AM, sunset 4:30 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.