Adam weather in December

In December, Adam sees average daytime highs of 28°C and overnight lows near 16°C, with 6 mm of rain across 0.4 wet days and about 10.7 hours of daylight. It is the 11th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 30°C in the first days to 27°C by the end. The sky is clear or mostly clear about 84% of the time in December, and the air most often feels dry.

Daylight stretches from about 10 h 42 min at the start of December to 10 h 36 min by month's end. Set against the rest of the year, December is Adam's 5th-clearest and 11th-windiest month. For the whole year in context, see Adam's year-round climate.

Daytime high
28°
11th warmest
Overnight low
16°
3rd coldest
Rainfall
6 mm
0.4 wet days
Daylight
10 h 36 min
6:47 AM – 5:25 PM
Cloud cover
16%
5th clearest
Wind
7 km/h
11th windiest
Solar energy
4.62 kWh/m²
Travel score
7.9
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 30°C in the first days to 27°C by the end.

A typical December day in Adam reaches about 28°C in the afternoon and slips back to 16°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 31°C. Set against its neighbours, December runs about 4°C cooler than November and about 2°C warmer than January.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13017
23017
33017
43017
53017
62917
72917
82916
92916
102916
112916
122916
132916
142916
152916
162816
172816
182815
192815
202815
212815
222815
232815
242815
252815
262815
272815
282715
292714
302714
312714

How December really feels in Adam

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.

Adam weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 14°30.810.88.7
Feb29° / 16°30.511.27.3
Mar33° / 19°151.411.84.7
Apr37° / 24°50.912.51.8
May42° / 28°10.213.10.0
Jun43° / 29°20.413.30.0
Jul43° / 29°70.813.20.0
Aug41° / 28°30.612.80.0
Sep40° / 26°00.112.10.3
Oct37° / 23°10.211.52.3
Nov32° / 19°50.510.95.5
Dec28° / 16°60.410.77.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 84% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 8% of December, with mostly cloudy or overcast conditions the remaining 8%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1946
2946
3937
4937
5937
6937
7937
8937
9937
10919
11919
12919
13919
14919
15919
16919
17919
18919
19919
209010
219010
22919
23919
24919
25919
26928
27928
28928
29928
30928
31928

Chance of precipitation in December

Any precipitation

Adam gets around 6 mm of rain over 0.4 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 1% and peaks near 2% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
11
21
31
41
51
61
71
81
91
101
111
121
131
141
151
161
171
181
191
201
212
222
232
242
251
261
271
281
291
301
311

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the dry band about 76% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1692650
2702550
3712450
4712450
5712360
6722260
7722260
8722161
9732061
10732061
11741961
12741961
13741961
14751861
15751861
16751861
17761851
18761851
19761851
20771850
21781750
22791740
23791740
24801640
25811630
26821530
27831430
28831430
29841330
30851320
31851320

Wind in December

Winds average 7 km/h in December.

Across December, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 h 42 min at the start of December to 10 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 6:38 AM to 6:54 AM, and sunset from 5:21 PM to 5:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.76:385:21
210.76:385:22
310.76:395:22
410.76:405:22
510.76:405:22
610.76:415:22
710.76:425:22
810.76:425:23
910.76:435:23
1010.76:435:23
1110.76:445:23
1210.76:455:24
1310.66:455:24
1410.66:465:24
1510.66:465:25
1610.66:475:25
1710.66:475:26
1810.66:485:26
1910.66:495:26
2010.66:495:27
2110.66:505:27
2210.66:505:28
2310.66:505:28
2410.66:515:29
2510.66:515:29
2610.66:525:30
2710.66:525:30
2810.66:535:31
2910.66:535:31
3010.66:535:32
3110.66:545:32

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.62 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.62 kWh/m² to a high of 7.6 kWh/m² in May across the year — December's 4.62 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.6Bright
124.6Bright
134.6Bright
144.6Bright
154.6Bright
164.6Bright
174.6Bright
184.6Bright
194.6Bright
204.6Bright
214.6Bright
224.6Bright
234.6Bright
244.6Bright
254.6Bright
264.6Bright
274.6Bright
284.6Bright
294.6Bright
304.7Bright
314.7Bright
Planning a trip in December

Hazard calendar for Adam

In seasonPeak

None of Adam's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Adam sees seasonal dust haze (March–September), heaviest in July.

Dust
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Adam?

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

7.9
Sightseeing
2nd-best month of the year
9.2
Beach & pool
1st-best month of the year

December is one of the better times to visit Adam for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Adam in December

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

In December, Adam sees daytime highs around 28°C and nights near 16°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Adam in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Adam peaks around April 21 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highExtremeVery highHighApr 21UV 12Dec 15UV 6
UV index (midday)Level
Jan7Very high
Feb9Very high
Mar10Very high
Apr12Extreme
May12Extreme
Jun11Extreme
Jul9Very high
Aug9Very high
Sep11Extreme
Oct9Very high
Nov7High
Dec6High

Air quality in Adam 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 Adam is worst in July — around 113 µg/m³ PM2.5 (unhealthy), about 4.2× the cleanest month (December, 27 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyPoorModerateJul 18110 µg/m³Dec 1227 µg/m³
PM2.5 (µg/m³)Level
Jan32Moderate
Feb37Poor
Mar42Poor
Apr56Unhealthy
May67Unhealthy
Jun81Unhealthy
Jul113Unhealthy
Aug94Unhealthy
Sep60Unhealthy
Oct36Poor
Nov28Moderate
Dec27Moderate
Location & terrain

Where is Adam?

Adam sits at 22.4°N, 57.5°E, 284 m above sea level, in Oman. The nearest listed city is Nizwa, 62 km away.

NizwaIzkīBahlaIbraSamā’ilRustaqSufālat Samā’ilBidbid

Topography around Adam

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

Within 3 km, the terrain around Adam has only modest variations in elevation — a maximum elevation change of 190 m around an average of 290 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 799 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,173 m.

The land around Adam is covered by bare terrain (75%) within 3 km, bare terrain (98%) within 16 km, and bare terrain (99%) within 80 km.

3 km
190 m
16 km
799 m
80 km
2,173 m
treescroplandartificial surfacesbare terrain
December weather nearby: Nizwa 62 km · Izkī 66 km · Bahla 70 km · Ibra 109 km · Samā’il 111 km · Rustaq 113 km · Sufālat Samā’il 116 km · Bidbid 130 km

Oman travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type G
240 V · 50 Hz
Prices
≈ 47% of US
price level, 2025
GDP per capita
$19,947
2025
Happiness
6.2 / 10
World Happiness, 2025
Safe drinking water
91%
of population, 2024
Homicide rate
0.1
per 100k, 2023
Road deaths
10.6
per 100k/yr, 2019
Income group
High
World Bank
English
Very low
EF EPI 407
Religion
Muslim 86%Christian 6%Hindu 6%other and unaffiliated 2%

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 Adam (22.3793°, 57.5272°, elevation 284 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. 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).