Mabaruma weather in December

In December, Mabaruma sees average daytime highs of 28°C and overnight lows near 24°C, with 203 mm of rain across 26.5 wet days and about 11.5 hours of daylight. It is the 10th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 14% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 36 min at the start of December to 11 h 30 min by month's end. Set against the rest of the year, December is Mabaruma's 8th-clearest and 6th-windiest month. For the whole year in context, see Mabaruma's year-round climate.

Daytime high
28°
10th warmest
Overnight low
24°
4th coldest
Rainfall
203 mm
26.5 wet days
Daylight
11 h 30 min
6:10 AM – 5:41 PM
Cloud cover
69%
8th clearest
Wind
9 km/h
6th windiest
Solar energy
4.31 kWh/m²
Travel score
3.7
out of 10

Mabaruma is city.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical December day in Mabaruma reaches about 28°C in the afternoon and slips back to 24°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°C. Set against its neighbours, December runs about 1°C cooler than November and on par with January.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12924
22924
32924
42924
52924
62824
72824
82824
92824
102824
112824
122824
132824
142824
152824
162824
172824
182824
192824
202824
212824
222824
232824
242824
252824
262824
272824
282824
292824
302824
312824

How December really feels in Mabaruma

Once humidity and wind are folded in, December averages 16 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
16
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Mabaruma weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 23°13221.411.64.8
Feb28° / 23°7617.511.75.1
Mar28° / 24°6516.111.95.0
Apr29° / 24°8215.512.24.7
May29° / 24°16924.312.43.7
Jun29° / 24°26628.312.53.1
Jul29° / 24°24929.912.43.0
Aug30° / 24°20128.112.33.1
Sep30° / 25°12923.6123.4
Oct30° / 25°15923.511.83.5
Nov29° / 24°21226.411.63.3
Dec28° / 24°20326.511.53.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 20% of December, with mostly cloudy or overcast conditions the remaining 66%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12773
22773
32872
42872
52971
62971
72971
83070
93070
103169
113169
123169
133169
143367
153367
163466
173466
183565
193565
203664
213664
223763
233862
243862
253862
263961
274060
284060
294159
304258
314357

Chance of precipitation in December

Any precipitation

Mabaruma gets around 203 mm of rain over 26.5 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 85% and peaks near 90% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
190
290
389
489
589
688
788
888
987
1087
1186
1286
1385
1485
1585
1684
1784
1884
1984
2084
2184
2283
2383
2483
2582
2682
2782
2881
2980
3080
3179

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the oppressive band about 64% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
103367
203565
303664
403862
503961
604159
704357
804654
904852
1005149
1105347
1205644
1305842
1406139
1506337
1606634
1706832
1807129
1907327
2007525
2107723
2207921
2308119
2408317
2508416
2608515
2708713
2808812
2918811
3018910
311909

Wind in December

Winds average 9 km/h in December.

Across December, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 36 min at the start of December to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:02 AM to 6:16 AM, and sunset from 5:36 PM to 5:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:025:36
211.66:035:36
311.66:035:36
411.56:045:36
511.56:045:37
611.56:055:37
711.56:055:37
811.56:065:38
911.56:065:38
1011.56:075:39
1111.56:075:39
1211.56:085:39
1311.56:085:40
1411.56:095:40
1511.56:095:41
1611.56:105:41
1711.56:105:41
1811.56:115:42
1911.56:115:42
2011.56:115:43
2111.56:125:43
2211.56:125:44
2311.56:135:44
2411.56:135:45
2511.56:145:45
2611.56:145:46
2711.56:155:46
2811.56:155:47
2911.56:165:47
3011.56:165:48
3111.56:165:48

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.31 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.31 kWh/m² to a high of 5.66 kWh/m² in September across the year — December's 4.31 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.3Bright
24.3Bright
34.3Bright
44.3Bright
54.3Bright
64.3Bright
74.3Bright
84.3Bright
94.3Bright
104.3Bright
114.3Bright
124.3Bright
134.3Bright
144.3Bright
154.3Bright
164.3Bright
174.3Bright
184.3Bright
194.3Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.4Bright
254.4Bright
264.4Bright
274.4Bright
284.4Bright
294.4Bright
304.4Bright
314.4Bright
Planning a trip in December

Is December a good time to visit Mabaruma?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

3.7
Sightseeing
5th-best month of the year
4.3
Beach & pool
8th-best month of the year

December is a weaker month for outdoor sightseeing in Mabaruma.

What to pack for Mabaruma in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, Mabaruma sees daytime highs around 28°C and nights near 24°C. Pack light clothes and rain gear. About 27 days see rain.

light clothesrain gear

Sea temperature near Mabaruma in December

The nearest coast averages about 28°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 26 km away) is warmest in September at about 29°C and coldest in February near 27°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr28Warm
May28Warm
Jun28Warm
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Mabaruma in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mabaruma peaks around March 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 at about 10 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 20UV 15Dec 11UV 10
UV index (midday)Level
Jan12Extreme
Feb13Extreme
Mar15Extreme
Apr14Extreme
May13Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct12Extreme
Nov10Extreme
Dec10Very high

Air quality in Mabaruma in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Mabaruma is worst in May — around 24 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (September, 12 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateMay 1924 µg/m³Sep 1612 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb19Moderate
Mar20Moderate
Apr23Moderate
May24Moderate
Jun24Moderate
Jul18Moderate
Aug13Moderate
Sep12Good
Oct13Moderate
Nov12Moderate
Dec15Moderate
Location & terrain

Where is Mabaruma?

Mabaruma sits at 8.2°N, 59.8°W, 0 m above sea level, in Guyana. The nearest listed city is Parika, 213 km away.

ParikaTumeremoBarticaGeorgetownEl Dorado

Topography around Mabaruma

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Mabaruma.

Within 3 km, the terrain around Mabaruma has only modest variations in elevation — a maximum elevation change of 80 m around an average of 15 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 193 m; within 80 km, significant variations in elevation — a maximum elevation change of 382 m.

The land around Mabaruma is covered by trees (87%) within 3 km, trees (89%) within 16 km, and trees (69%) and water (28%) within 80 km.

3 km
80 m
16 km
193 m
80 km
382 m
treesgrasslandwaterwetlandmangroves
December weather nearby: Parika 213 km · Tumeremo 215 km · Bartica 237 km · Georgetown 237 km · Guasipati 247 km · El Dorado 263 km · Tucupita 267 km · Barrancas 271 km

Guyana travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type A / B / D / G
240 V · 60 Hz
Prices
≈ 33% of US
price level, 2025
GDP per capita
$32,414
2025
Happiness
6.0 / 10
World Happiness, 2011
Safe drinking water
67%
of population, 2024
Homicide rate
19.1
per 100k, 2023
Road deaths
22.3
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 35%Hindu 25%other Christian 21%Roman Catholic 7%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Mabaruma (8.2038°, -59.7812°, elevation 0 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).