Isla climate

Isla Weather in December

NASA POWER reanalysis for the half-degree grid cell around Isla, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

Average highs run from 26°C on December 1 to 25°C on December 31, and lows from 18°C to 17°C. Normal precipitation for the month is 59 mm over about 12 wet days.

December day by day

The normal high and low for each date, in °C.

Normal daily high and low temperature at Isla, in °C, with the record for each date.010203040151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

December at a glance

Average high
25°C
Average low
17°C
Precipitation
59 mm
Reanalysis high
34°CDec 1, 2018
Reanalysis low
8°CDec 15, 1997
Daylight
11 h 08 min to 11 h 04 min
Cloud cover
60%
Humidity
88%
Dew point
19°C
Wind
11.5 km/h

Every day of the month

A wet day has at least 1 mm of precipitation in the reanalysis.

DateNormal highNormal lowReanalysis highReanalysis lowChance wet
Dec 126°C18°C34°C 201812°C 201142%
Dec 226°C18°C30°C 201814°C 200641%
Dec 326°C18°C31°C 199715°C 200842%
Dec 426°C18°C31°C 201613°C 200642%
Dec 526°C18°C31°C 201313°C 200639%
Dec 626°C18°C30°C 201314°C 200939%
Dec 726°C18°C30°C 201614°C 200238%
Dec 825°C18°C30°C 199713°C 201737%
Dec 925°C18°C32°C 199712°C 201737%
Dec 1025°C18°C30°C 201912°C 201736%
Dec 1125°C18°C28°C 200712°C 201736%
Dec 1225°C17°C30°C 199912°C 200835%
Dec 1325°C17°C31°C 201511°C 199735%
Dec 1425°C17°C30°C 19929°C 199735%
Dec 1525°C17°C30°C 20158°C 199734%
Dec 1625°C17°C31°C 201910°C 199734%
Dec 1725°C17°C29°C 201613°C 199735%
Dec 1825°C17°C32°C 201611°C 200335%
Dec 1925°C17°C29°C 200212°C 199634%
Dec 2025°C17°C30°C 199912°C 199635%
Dec 2125°C17°C31°C 201314°C 200334%
Dec 2225°C17°C31°C 200414°C 201835%
Dec 2325°C17°C32°C 201413°C 201834%
Dec 2425°C17°C32°C 201514°C 201433%
Dec 2525°C17°C30°C 201212°C 201434%
Dec 2625°C17°C30°C 199713°C 199336%
Dec 2725°C17°C31°C 201512°C 200635%
Dec 2825°C17°C30°C 199411°C 199735%
Dec 2925°C17°C30°C 201914°C 200434%
Dec 3025°C17°C30°C 201012°C 199734%
Dec 3125°C17°C33°C 201012°C 199734%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at Isla, in percent.010203040501102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (CST).

December 1
sunrise 6:37 AM, sunset 5:45 PM
December 31
sunrise 6:53 AM, sunset 5:57 PM

Every day of December: sun and moon

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.