As Suwayq weather in December

In December, As Suwayq sees average daytime highs of 28°C and overnight lows near 19°C, with 5 mm of rain across 0.9 wet days and about 10.6 hours of daylight. It is the 10th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 29°C in the first days to 26°C by the end. The sky is clear or mostly clear about 80% of the time in December, and the air most often feels humid.

Daylight stretches from about 10 h 36 min at the start of December to 10 h 30 min by month's end. Set against the rest of the year, December is As Suwayq's 7th-clearest and 12th-windiest month. For the whole year in context, see As Suwayq's year-round climate.

Daytime high
28°
10th warmest
Overnight low
19°
3rd coldest
Rainfall
5 mm
0.9 wet days
Daylight
10 h 30 min
6:50 AM – 5:22 PM
Cloud cover
20%
7th clearest
Wind
8 km/h
12th windiest
Solar energy
4.31 kWh/m²
Travel score
8.4
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 29°C in the first days to 26°C by the end.

A typical December day in As Suwayq reaches about 28°C in the afternoon and slips back to 19°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 30°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)
12920
22920
32920
42920
52919
62819
72819
82819
92819
102819
112819
122819
132819
142819
152819
162719
172719
182718
192718
202718
212718
222718
232718
242718
252718
262718
272718
282718
292717
302617
312617

How December really feels in As Suwayq

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.

As Suwayq weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 17°71.610.78.7
Feb27° / 18°51.111.28.3
Mar31° / 21°71.211.85.9
Apr36° / 25°20.512.52.6
May41° / 29°00.113.10.1
Jun42° / 31°30.213.40.0
Jul41° / 31°40.213.30.0
Aug39° / 30°0012.80.5
Sep38° / 28°0012.11.2
Oct36° / 26°10.211.42.7
Nov31° / 22°40.710.86.0
Dec28° / 19°50.910.68.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 80% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 10% of December, with mostly cloudy or overcast conditions the remaining 11%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1937
2937
3937
4919
5919
6919
7919
89010
98911
108911
118911
128911
138812
148812
158812
168812
178812
188812
198812
208812
218911
228911
238911
248911
258911
268911
278911
288911
298911
308911
318812

Chance of precipitation in December

Any precipitation

As Suwayq gets around 5 mm of rain over 0.9 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 3% and peaks near 3% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
12
22
32
42
52
62
72
82
93
103
113
123
133
143
153
163
173
183
193
203
213
223
233
243
253
263
273
283
293
303
313

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the humid band about 33% of days. Sticky, muggy-or-worse air turns up on roughly 21% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
182244251
292343251
3102341251
4102440251
5112439251
6112538251
7122537251
8122636251
9132735251
10132734251
11142833241
12142932241
13143031231
14143131231
15143131221
16153131221
17153231211
18153231211
19163231201
20163331191
21173331181
22183331171
23193331161
24203331151
25213330141
26223330131
27233430131
28243429121
29253429110
30263429110
31273428100

Wind in December

Winds average 8 km/h in December, the calmest month.

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

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 h 36 min at the start of December to 10 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 6:41 AM to 6:57 AM, and sunset from 5:19 PM to 5:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.66:415:19
210.66:425:19
310.66:425:19
410.66:435:19
510.66:445:19
610.66:445:20
710.66:455:20
810.66:465:20
910.66:465:20
1010.66:475:21
1110.66:475:21
1210.66:485:21
1310.56:495:21
1410.56:495:22
1510.56:505:22
1610.56:505:22
1710.56:515:23
1810.56:515:23
1910.56:525:24
2010.56:525:24
2110.56:535:25
2210.56:535:25
2310.56:545:25
2410.56:545:26
2510.56:555:26
2610.56:555:27
2710.56:565:28
2810.56:565:28
2910.56:565:29
3010.56:575:29
3110.56:575:30

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 7.57 kWh/m² in May across the year — December's 4.31 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.4Bright
64.4Bright
74.4Bright
84.4Bright
94.4Bright
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
244.3Bright
254.3Bright
264.3Bright
274.3Bright
284.3Bright
294.3Bright
304.3Bright
314.3Bright
Planning a trip in December

Hazard calendar for As Suwayq

In seasonPeak

In December, As Suwayq sits inside its cyclone season. The full year is below, with each hazard's peak months called out.

As Suwayq sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.

As Suwayq sees seasonal dust haze (March–August), heaviest in July.

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

Is December a good time to visit As Suwayq?

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

8.4
Sightseeing
2nd-best month of the year
8.8
Beach & pool
1st-best month of the year

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

What to pack for As Suwayq in December

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

In December, As Suwayq sees daytime highs around 28°C and nights near 19°C. Pack light clothes.

light clothes

Sea temperature near As Suwayq in December

The nearest coast averages about 25°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in June at about 32°C and coldest in February near 23°C.

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

25°30°35°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan24Refreshing
Feb23Refreshing
Mar25Warm
Apr27Warm
May30Tropical
Jun32Tropical
Jul32Tropical
Aug31Tropical
Sep31Tropical
Oct30Tropical
Nov28Tropical
Dec25Warm

UV index in As Suwayq in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in As Suwayq peaks around May 18 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highVery highHighMay 18UV 10Dec 20UV 5
UV index (midday)Level
Jan5High
Feb8Very high
Mar9Very high
Apr8Very high
May10Extreme
Jun9Very high
Jul9Very high
Aug10Very high
Sep9Very high
Oct8Very high
Nov6High
Dec5Moderate

Air quality in As Suwayq 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 As Suwayq is worst in July — around 70 µg/m³ PM2.5 (unhealthy), about 3.6× the cleanest month (December, 20 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyPoorModerateJul 1768 µg/m³Dec 1620 µg/m³
PM2.5 (µg/m³)Level
Jan24Moderate
Feb29Moderate
Mar32Moderate
Apr37Poor
May44Poor
Jun55Poor
Jul70Unhealthy
Aug56Unhealthy
Sep34Moderate
Oct28Moderate
Nov23Moderate
Dec20Moderate
Location & terrain

Where is As Suwayq?

As Suwayq sits at 23.8°N, 57.4°E, 6 m above sea level, in Oman. The nearest listed city is Al Khābūrah, 38 km away.

ŞaḩamSeebSamā’ilSufālat Samā’ilBidbid

Topography around As Suwayq

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

Within 3 km, the terrain around As Suwayq has only modest variations in elevation — a maximum elevation change of 17 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 79 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,973 m.

The land around As Suwayq is covered by water (45%) within 3 km, water (50%) and grassland (21%) within 16 km, and bare terrain (59%) and water (32%) within 80 km.

3 km
17 m
16 km
79 m
80 km
2,973 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Al Khābūrah 38 km · Barkā’ 49 km · Rustaq 51 km · Şaḩam 66 km · Seeb 79 km · Samā’il 81 km · Sufālat Samā’il 84 km · Bidbid 86 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 As Suwayq (23.8494°, 57.4386°, elevation 6 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).