New Amsterdam weather in December

In December, New Amsterdam sees average daytime highs of 28°C and overnight lows near 25°C, with 236 mm of rain across 26.7 wet days and about 11.6 hours of daylight. It is the 9th-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 18% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 42 min at the start of December to 11 h 36 min by month's end. Set against the rest of the year, December is New Amsterdam's 9th-clearest and 6th-windiest month. For the whole year in context, see New Amsterdam's year-round climate.

Daytime high
28°
9th warmest
Overnight low
25°
6th coldest
Rainfall
236 mm
26.7 wet days
Daylight
11 h 36 min
5:57 AM – 5:35 PM
Cloud cover
66%
9th clearest
Wind
14 km/h
6th windiest
Solar energy
4.52 kWh/m²
Travel score
4.0
out of 10

New Amsterdam is city in Guyana.

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 New Amsterdam reaches about 28°C in the afternoon and slips back to 25°C overnight — a 3°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)
12825
22825
32825
42825
52825
62825
72825
82825
92825
102825
112825
122825
132825
142825
152825
162825
172825
182825
192824
202724
212724
222724
232724
242724
252724
262724
272724
282724
292724
302724
312724

How December really feels in New Amsterdam

Once humidity and wind are folded in, December averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

New Amsterdam weather by month

How December compares with the rest of the year at a glance. December is the 9th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 24°18223.511.74.5
Feb27° / 24°12919.311.84.9
Mar28° / 25°11419.1125.1
Apr28° / 25°16821.312.14.6
May28° / 25°33127.612.33.8
Jun28° / 25°37429.112.43.5
Jul28° / 24°28629.312.33.5
Aug29° / 25°16924.312.24.0
Sep29° / 26°8916.8124.6
Oct29° / 26°9717.211.94.6
Nov29° / 25°17822.811.74.0
Dec28° / 25°23626.711.64.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 23% of December, with mostly cloudy or overcast conditions the remaining 59%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14060
23961
33961
43862
53862
63862
73862
83862
93961
103961
114060
124060
134060
143961
154060
164159
174159
184159
194258
204258
214258
224357
234258
244357
254357
264456
274456
284555
294555
304555
314654

Chance of precipitation in December

Any precipitation

New Amsterdam gets around 236 mm of rain over 26.7 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 87% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
185
286
386
486
586
687
787
887
987
1086
1186
1286
1386
1486
1585
1685
1785
1885
1985
2084
2185
2285
2385
2485
2585
2685
2785
2885
2984
3084
3184

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 87% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
106931
207030
307228
407327
507525
607723
707822
808020
908119
1018217
1118316
1218514
1318613
1418712
1518811
1618910
171909
181918
191927
201936
211936
221945
231945
241954
251954
261963
271963
281963
291972
301972
311972

Wind in December

Winds average 14 km/h in December.

Across December, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 42 min at the start of December to 11 h 36 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 5:50 AM to 6:04 AM, and sunset from 5:30 PM to 5:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.75:505:30
211.75:505:30
311.75:515:30
411.75:515:31
511.75:525:31
611.75:525:31
711.75:535:32
811.65:535:32
911.65:545:32
1011.65:545:33
1111.65:555:33
1211.65:555:34
1311.65:565:34
1411.65:565:35
1511.65:575:35
1611.65:575:35
1711.65:585:36
1811.65:585:36
1911.65:585:37
2011.65:595:37
2111.65:595:38
2211.66:005:38
2311.66:005:39
2411.66:015:39
2511.66:015:40
2611.66:025:40
2711.66:025:41
2811.66:035:41
2911.66:035:42
3011.66:045:42
3111.66:045:42

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.52 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.52 kWh/m² to a high of 6.06 kWh/m² in September across the year — December's 4.52 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.6Bright
54.6Bright
64.6Bright
74.6Bright
84.6Bright
94.6Bright
104.6Bright
114.5Bright
124.5Bright
134.5Bright
144.5Bright
154.5Bright
164.5Bright
174.5Bright
184.5Bright
194.5Bright
204.5Bright
214.5Bright
224.5Bright
234.5Bright
244.5Bright
254.5Bright
264.5Bright
274.5Bright
284.5Bright
294.5Bright
304.6Bright
314.6Bright
Planning a trip in December

Is December a good time to visit New Amsterdam?

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

4.0
Sightseeing
7th-best month of the year
4.3
Beach & pool
9th-best month of the year

December is a reasonable time to visit New Amsterdam for sightseeing.

What to pack for New Amsterdam in December

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

In December, New Amsterdam sees daytime highs around 28°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 27 days see rain.

light clothesrain gearsun protection

Sea temperature near New Amsterdam 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 21 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
Apr27Warm
May28Warm
Jun28Warm
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec28Warm

UV index in New Amsterdam 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 New Amsterdam peaks around March 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 22UV 15Dec 12UV 10
UV index (midday)Level
Jan12Extreme
Feb13Extreme
Mar15Extreme
Apr14Extreme
May13Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec10Extreme

Air quality in New Amsterdam 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 New Amsterdam is worst in April — around 27 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (August, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateApr 1226 µg/m³Aug 1612 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb23Moderate
Mar25Moderate
Apr27Moderate
May21Moderate
Jun17Moderate
Jul13Moderate
Aug11Good
Sep13Moderate
Oct16Moderate
Nov15Moderate
Dec17Moderate
Location & terrain

Where is New Amsterdam?

New Amsterdam sits at 6.2°N, 57.5°W, 1 m above sea level, in Guyana. The nearest listed city is Linden, 92 km away.

LindenGeorgetownParikaBartica

Topography around New Amsterdam

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

Within 3 km, the terrain around New Amsterdam has only modest variations in elevation — a maximum elevation change of 20 m around an average of 3 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 36 m; within 80 km, only modest variations in elevation — a maximum elevation change of 86 m.

The land around New Amsterdam is covered by grassland (40%) and water (27%) within 3 km, grassland (37%) and water (20%) within 16 km, and trees (35%) and water (32%) within 80 km.

3 km
20 m
16 km
36 m
80 km
86 m
treesgrasslandcroplandartificial surfaceswaterwetlandmangroves
December weather nearby: Linden 92 km · Georgetown 94 km · Parika 120 km · Bartica 124 km · Weg naar Zee 258 km · Welgelegen 258 km · Lelydorp 260 km · Latour 260 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 New Amsterdam (6.2492°, -57.5158°, elevation 1 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).