In Salah weather in December

In December, In Salah sees average daytime highs of 22°C and overnight lows near 9°C, with 2 mm of rain across 0.3 wet days and about 10.3 hours of daylight. It is the 11th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 21°C by the end. The sky is clear or mostly clear about 75% of the time in December, and the air most often feels dry.

Daylight stretches from about 10 h 24 min at the start of December to 10 h 18 min by month's end. Set against the rest of the year, December is In Salah's 8th-clearest and 9th-windiest month. For the whole year in context, see In Salah's year-round climate.

Daytime high: 22°; 11th warmest
Overnight low: 9°; 2nd coldest
Rainfall: 2 mm; 0.3 wet days
Daylight: 10 h 18 min; 7:37 AM – 5:55 PM
Cloud cover: 23%; 8th clearest
Wind: 18 km/h; 9th windiest
Solar energy: 4.12 kWh/m²
Travel score: 8.9; out of 10

← November In Salah year-round climate January →Best places to visit in December

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 23°C in the first days to 21°C by the end.

A typical December day in In Salah reaches about 22°C in the afternoon and slips back to 9°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 26°C. Set against its neighbours, December runs about 5°C cooler than November and about 1°C warmer than January.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	23	23	23	23	23	23	23	22	22	22	22	22	22	22	22	22	22	22	22	22	21	21	21	21	21	21	21	21	21	21	21
Avg low (°C)	10	10	10	10	10	10	10	9	9	9	9	9	9	9	9	9	9	9	8	8	8	8	8	8	8	8	8	8	8	7	7

	Avg high (°C)	Avg low (°C)
1	23	10
2	23	10
3	23	10
4	23	10
5	23	10
6	23	10
7	23	10
8	22	9
9	22	9
10	22	9
11	22	9
12	22	9
13	22	9
14	22	9
15	22	9
16	22	9
17	22	9
18	22	9
19	22	8
20	22	8
21	21	8
22	21	8
23	21	8
24	21	8
25	21	8
26	21	8
27	21	8
28	21	8
29	21	8
30	21	7
31	21	7

How December really feels in In Salah

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

heat index over the day's high

Days feeling ≤ 0°C

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.

In Salah weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 4th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	21° / 7°	2	0.4	10.5	8.7
Feb	24° / 10°	1	0.4	11	9.1
Mar	28° / 14°	2	0.4	11.8	7.8
Apr	33° / 18°	2	0.4	12.6	4.4
May	38° / 24°	1	0.1	13.3	1.3
Jun	43° / 28°	0	0	13.7	0.0
Jul	45° / 30°	0	0	13.5	0.0
Aug	44° / 30°	0	0	13	0.0
Sep	40° / 27°	1	0.1	12.2	0.3
Oct	34° / 21°	1	0.4	11.3	3.8
Nov	27° / 13°	1	0.3	10.7	8.4
Dec	22° / 9°	2	0.3	10.3	8.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 75% 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 17%. Skies tend to open up as the month goes on.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	81	81	81	81	81	80	80	80	80	80	80	81	82	82	82	83	83	83	84	85	86	86	86	87	87	87	87	87	87	87	87
Cloudier (%)	19	19	19	19	19	20	20	20	20	20	20	19	18	18	18	17	17	17	16	15	14	14	14	13	13	13	13	13	13	13	13

	Clearer (%)	Cloudier (%)
1	81	19
2	81	19
3	81	19
4	81	19
5	81	19
6	80	20
7	80	20
8	80	20
9	80	20
10	80	20
11	80	20
12	81	19
13	82	18
14	82	18
15	82	18
16	83	17
17	83	17
18	83	17
19	84	16
20	85	15
21	86	14
22	86	14
23	86	14
24	87	13
25	87	13
26	87	13
27	87	13
28	87	13
29	87	13
30	87	13
31	87	13

Chance of precipitation in December

Any precipitation

In Salah gets around 2 mm of rain over 0.3 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 1% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	0	0

	Rain chance (%)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	1
11	1
12	1
13	1
14	1
15	1
16	1
17	1
18	1
19	1
20	1
21	1
22	1
23	1
24	1
25	1
26	1
27	1
28	1
29	1
30	0
31	0

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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

Wind in December

Winds average 18 km/h in December.

Across December, daily wind ranges from about 17 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	17	17	17	17	17	18	18	18	18	18	18	18	18	17	17	17	17	17	17	17	17	18	18	18	18	18	18	18	18	18	18
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

	Wind speed (km/h)	Feels
1	17	light breeze
2	17	light breeze
3	17	light breeze
4	17	light breeze
5	17	light breeze
6	18	light breeze
7	18	light breeze
8	18	light breeze
9	18	light breeze
10	18	light breeze
11	18	light breeze
12	18	light breeze
13	18	light breeze
14	17	light breeze
15	17	light breeze
16	17	light breeze
17	17	light breeze
18	17	light breeze
19	17	light breeze
20	17	light breeze
21	17	light breeze
22	18	light breeze
23	18	light breeze
24	18	light breeze
25	18	light breeze
26	18	light breeze
27	18	light breeze
28	18	light breeze
29	18	light breeze
30	18	light breeze
31	18	light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 h 24 min at the start of December to 10 h 18 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 7:28 AM to 7:44 AM, and sunset from 5:52 PM to 6:02 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	10.4	10.4	10.4	10.4	10.4	10.4	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3
Sunrise (AM)	7:28	7:28	7:29	7:30	7:30	7:31	7:32	7:32	7:33	7:34	7:34	7:35	7:36	7:36	7:37	7:37	7:38	7:39	7:39	7:40	7:40	7:41	7:41	7:41	7:42	7:42	7:43	7:43	7:43	7:44	7:44
Sunset (PM)	5:52	5:52	5:52	5:52	5:52	5:53	5:53	5:53	5:53	5:53	5:54	5:54	5:54	5:54	5:55	5:55	5:55	5:56	5:56	5:57	5:57	5:58	5:58	5:59	5:59	6:00	6:00	6:01	6:01	6:02	6:02

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	10.4	7:28	5:52
2	10.4	7:28	5:52
3	10.4	7:29	5:52
4	10.4	7:30	5:52
5	10.4	7:30	5:52
6	10.4	7:31	5:53
7	10.3	7:32	5:53
8	10.3	7:32	5:53
9	10.3	7:33	5:53
10	10.3	7:34	5:53
11	10.3	7:34	5:54
12	10.3	7:35	5:54
13	10.3	7:36	5:54
14	10.3	7:36	5:54
15	10.3	7:37	5:55
16	10.3	7:37	5:55
17	10.3	7:38	5:55
18	10.3	7:39	5:56
19	10.3	7:39	5:56
20	10.3	7:40	5:57
21	10.3	7:40	5:57
22	10.3	7:41	5:58
23	10.3	7:41	5:58
24	10.3	7:41	5:59
25	10.3	7:42	5:59
26	10.3	7:42	6:00
27	10.3	7:43	6:00
28	10.3	7:43	6:01
29	10.3	7:43	6:01
30	10.3	7:44	6:02
31	10.3	7:44	6:02

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.12 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.12 kWh/m² to a high of 7.96 kWh/m² in June across the year — December's 4.12 kWh/m² sits near the bottom.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	4.3	4.3	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.2	4.2	4.2
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	4.3	Bright
2	4.3	Bright
3	4.2	Bright
4	4.2	Bright
5	4.2	Bright
6	4.2	Bright
7	4.2	Bright
8	4.2	Bright
9	4.2	Bright
10	4.1	Bright
11	4.1	Bright
12	4.1	Bright
13	4.1	Bright
14	4.1	Bright
15	4.1	Bright
16	4.1	Bright
17	4.1	Bright
18	4.1	Bright
19	4.1	Bright
20	4.1	Bright
21	4.1	Bright
22	4.1	Bright
23	4.1	Bright
24	4.1	Bright
25	4.1	Bright
26	4.1	Bright
27	4.1	Bright
28	4.1	Bright
29	4.2	Bright
30	4.2	Bright
31	4.2	Bright

Planning a trip in December

Hazard calendar for In Salah

In seasonPeak

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

In Salah sees seasonal dust haze (February–October), heaviest in June.

Dust

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is December a good time to visit In Salah?

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

8.9

Sightseeing

2nd-best month of the year

6.0

Beach & pool

6th-best month of the year

December is one of the better times to visit In Salah for general sightseeing.

What to pack for In Salah in December

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

In December, In Salah sees daytime highs around 22°C and nights near 9°C. Little to plan around — just the basics.

UV index in In Salah in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in In Salah peaks around July 12 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 4 (moderate).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	5	7	9	9	10	10	11	8	10	7	5	4
Level	High	High	Very high	Very high	Extreme	Very high	Extreme	Very high	Very high	High	High	Moderate

	UV index (midday)	Level
Jan	5	High
Feb	7	High
Mar	9	Very high
Apr	9	Very high
May	10	Extreme
Jun	10	Very high
Jul	11	Extreme
Aug	8	Very high
Sep	10	Very high
Oct	7	High
Nov	5	High
Dec	4	Moderate

Air quality in In Salah 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 In Salah is worst in July — around 106 µg/m³ PM2.5 (unhealthy), about 1.7× the cleanest month (November, 64 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	80	104	93	97	103	91	106	93	87	87	64	92
Level	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Unhealthy

	PM2.5 (µg/m³)	Level
Jan	80	Unhealthy
Feb	104	Unhealthy
Mar	93	Unhealthy
Apr	97	Unhealthy
May	103	Unhealthy
Jun	91	Unhealthy
Jul	106	Unhealthy
Aug	93	Unhealthy
Sep	87	Unhealthy
Oct	87	Unhealthy
Nov	64	Unhealthy
Dec	92	Unhealthy

Location & terrain

Where is In Salah?

In Salah sits at 27.2°N, 2.5°E, 293 m above sea level, in Algeria. The nearest listed city is Aoulef, 141 km away.

Topography around In Salah

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

Within 3 km, the terrain around In Salah has only modest variations in elevation — a maximum elevation change of 37 m around an average of 283 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 166 m; within 80 km, significant variations in elevation — a maximum elevation change of 519 m.

The land around In Salah is covered by bare terrain (76%) within 3 km, bare terrain (96%) within 16 km, and bare terrain (100%) within 80 km.

3 km

37 m

bare terrain 76%

16 km

166 m

bare terrain 96%

80 km

519 m

bare terrain 100%

treesshrubscroplandartificial surfacesbare terrain

← November In Salah year-round climate January →Best places to visit in December

December weather nearby: Aoulef 141 km · Reggane 235 km · Adrar 284 km · Timimoun 318 km · El Menia 378 km · Metlili Chaamba 575 km · Tamanghasset 579 km · Rouissat 594 km

Algeria travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type C / F; 230 V · 50 Hz
Prices: ≈ 33% of US; price level, 2025
GDP per capita: $6,051; 2025
Happiness: 5.7 / 10; World Happiness, 2025
Safe drinking water: 69%; of population, 2024
Homicide rate: 1.2; per 100k, 2023
Road deaths: 20.9; per 100k/yr, 2019
Income group: Upper middle; World Bank
English: Low; EF EPI 468
Religion

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 In Salah (27.1968°, 2.4791°, elevation 293 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).

	Avg high (°C)	Avg low (°C)
1	23	10
2	23	10
3	23	10
4	23	10
5	23	10
6	23	10
7	23	10
8	22	9
9	22	9
10	22	9
11	22	9
12	22	9
13	22	9
14	22	9
15	22	9
16	22	9
17	22	9
18	22	9
19	22	8
20	22	8
21	21	8
22	21	8
23	21	8
24	21	8
25	21	8
26	21	8
27	21	8
28	21	8
29	21	8
30	21	7
31	21	7

	Clearer (%)	Cloudier (%)
1	81	19
2	81	19
3	81	19
4	81	19
5	81	19
6	80	20
7	80	20
8	80	20
9	80	20
10	80	20
11	80	20
12	81	19
13	82	18
14	82	18
15	82	18
16	83	17
17	83	17
18	83	17
19	84	16
20	85	15
21	86	14
22	86	14
23	86	14
24	87	13
25	87	13
26	87	13
27	87	13
28	87	13
29	87	13
30	87	13
31	87	13

	Rain chance (%)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	1
11	1
12	1
13	1
14	1
15	1
16	1
17	1
18	1
19	1
20	1
21	1
22	1
23	1
24	1
25	1
26	1
27	1
28	1
29	1
30	0
31	0

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°C)	Avg low (°C)
1	23	10
2	23	10
3	23	10
4	23	10
5	23	10
6	23	10
7	23	10
8	22	9
9	22	9
10	22	9
11	22	9
12	22	9
13	22	9
14	22	9
15	22	9
16	22	9
17	22	9
18	22	9
19	22	8
20	22	8
21	21	8
22	21	8
23	21	8
24	21	8
25	21	8
26	21	8
27	21	8
28	21	8
29	21	8
30	21	7
31	21	7

	Clearer (%)	Cloudier (%)
1	81	19
2	81	19
3	81	19
4	81	19
5	81	19
6	80	20
7	80	20
8	80	20
9	80	20
10	80	20
11	80	20
12	81	19
13	82	18
14	82	18
15	82	18
16	83	17
17	83	17
18	83	17
19	84	16
20	85	15
21	86	14
22	86	14
23	86	14
24	87	13
25	87	13
26	87	13
27	87	13
28	87	13
29	87	13
30	87	13
31	87	13

	Rain chance (%)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	1
11	1
12	1
13	1
14	1
15	1
16	1
17	1
18	1
19	1
20	1
21	1
22	1
23	1
24	1
25	1
26	1
27	1
28	1
29	1
30	0
31	0

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°C)	Avg low (°C)
1	23	10
2	23	10
3	23	10
4	23	10
5	23	10
6	23	10
7	23	10
8	22	9
9	22	9
10	22	9
11	22	9
12	22	9
13	22	9
14	22	9
15	22	9
16	22	9
17	22	9
18	22	9
19	22	8
20	22	8
21	21	8
22	21	8
23	21	8
24	21	8
25	21	8
26	21	8
27	21	8
28	21	8
29	21	8
30	21	7
31	21	7

	Clearer (%)	Cloudier (%)
1	81	19
2	81	19
3	81	19
4	81	19
5	81	19
6	80	20
7	80	20
8	80	20
9	80	20
10	80	20
11	80	20
12	81	19
13	82	18
14	82	18
15	82	18
16	83	17
17	83	17
18	83	17
19	84	16
20	85	15
21	86	14
22	86	14
23	86	14
24	87	13
25	87	13
26	87	13
27	87	13
28	87	13
29	87	13
30	87	13
31	87	13

	Rain chance (%)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	1
11	1
12	1
13	1
14	1
15	1
16	1
17	1
18	1
19	1
20	1
21	1
22	1
23	1
24	1
25	1
26	1
27	1
28	1
29	1
30	0
31	0

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100