Monrovia climate

Monrovia Weather in December

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

Average highs run from 28°C on December 1 to 29°C on December 31, and lows from 26°C to 26°C. Normal precipitation for the month is 28 mm over about 3 wet days.

December day by day

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

Normal daily high and low temperature at Monrovia, in °C, with the record for each date.2022.52527.53032.535151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

December at a glance

Average high
28°C
Average low
26°C
Precipitation
28 mm
Reanalysis high
33°CDec 13, 2002
Reanalysis low
22°CDec 29, 1997
Daylight
11 h 47 min to 11 h 46 min
Cloud cover
49%
Humidity
79%
Dew point
23°C
Wind
8.3 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 128°C26°C30°C 200625°C 199621%
Dec 228°C26°C30°C 200624°C 199622%
Dec 328°C26°C30°C 200625°C 199223%
Dec 428°C26°C30°C 200625°C 199824%
Dec 528°C26°C32°C 200625°C 201524%
Dec 628°C26°C30°C 200624°C 201523%
Dec 728°C26°C30°C 200625°C 199423%
Dec 828°C26°C31°C 200624°C 199422%
Dec 928°C26°C31°C 200624°C 199422%
Dec 1028°C26°C30°C 200624°C 199421%
Dec 1128°C26°C30°C 200224°C 199820%
Dec 1228°C26°C31°C 200225°C 200118%
Dec 1328°C26°C33°C 200222°C 201417%
Dec 1428°C26°C31°C 200222°C 201415%
Dec 1528°C26°C32°C 200224°C 200014%
Dec 1628°C26°C30°C 200123°C 200013%
Dec 1728°C26°C31°C 200623°C 201512%
Dec 1828°C26°C30°C 200624°C 201511%
Dec 1928°C26°C30°C 200523°C 20139%
Dec 2028°C26°C30°C 200523°C 20138%
Dec 2128°C26°C30°C 200724°C 20128%
Dec 2229°C26°C30°C 200724°C 19997%
Dec 2329°C26°C31°C 199424°C 19997%
Dec 2429°C26°C31°C 200323°C 20156%
Dec 2529°C26°C31°C 200223°C 20156%
Dec 2629°C26°C32°C 200323°C 19976%
Dec 2729°C26°C30°C 200224°C 20156%
Dec 2829°C26°C31°C 200322°C 20156%
Dec 2929°C26°C31°C 200322°C 19976%
Dec 3029°C26°C30°C 200324°C 19976%
Dec 3129°C26°C32°C 200322°C 20126%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at Monrovia, in percent.05101520251102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT).

December 1
sunrise 6:39 AM, sunset 6:26 PM
December 31
sunrise 6:53 AM, sunset 6:39 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.