Constantine weather in January

In January, Constantine sees average daytime highs of 12°C and overnight lows near 3°C, with 45 mm of precipitation across 8.5 wet days and about 9.8 hours of daylight. It is the 12th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 12°C through the month. The sky is clear or mostly clear about 32% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 36 min at the start of January to 10 h 06 min by month's end. Set against the rest of the year, January is Constantine's 11th-clearest and 4th-windiest month. For the whole year in context, see Constantine's year-round climate.

Daytime high
12°
12th warmest
Overnight low
1st coldest
Precipitation
45 mm
8.5 wet days
Daylight
9 h 48 min
7:50 AM – 5:36 PM
Cloud cover
54%
11th clearest
Wind
8 km/h
4th windiest
Solar energy
2.61 kWh/m²
Travel score
3.5
out of 10

Constantine is city in Algeria.

Density
196/km²
people per km²
Founded
~203 BCE

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 12°C through the month.

A typical January day in Constantine reaches about 12°C in the afternoon and slips back to 3°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 8°C and 17°C. Set against its neighbours, January runs about 1°C cooler than December and about 1°C cooler than February.

-5°10°15°20°151015202531
Avg high (°C)Avg low (°C)
1133
2133
3133
4133
5133
6133
7133
8133
9133
10123
11123
12123
13123
14123
15123
16123
17123
18123
19123
20123
21123
22123
23123
24123
25123
26123
27123
28123
29123
30123
31123

How January really feels in Constantine

Once humidity and wind are folded in, January 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

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

Constantine weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan12° / 458.51.29.83.5
Feb13° / 418.31.210.63.9
Mar16° / 509.10.511.75.4
Apr20° / 539.40.212.96.4
May25° / 12°487.9013.97.4
Jun30° / 17°195.4014.45.8
Jul34° / 20°93.3014.23.7
Aug34° / 20°195.3013.43.8
Sep29° / 17°318012.26.1
Oct24° / 12°367.5011.17.4
Nov17° / 386.7010.16.0
Dec13° / 447.50.59.64.1

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 19% of January, with mostly cloudy or overcast conditions the remaining 48%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25347
35347
45347
55347
65446
75446
85446
95446
105446
115347
125347
135446
145347
155347
165347
175248
185248
195248
205149
215050
225050
235050
245050
255050
264951
274951
284951
294951
304951
315050

Chance of precipitation in January

Any precipitationSnow

Constantine gets around 45 mm of rain and snow over 8.5 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 28% and peaks near 32% on the wettest days, and about 1 day brings snow. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1254
2245
3245
4245
5245
6245
7244
8244
9244
10254
11254
12254
13264
14274
15274
16284
17284
18294
19304
20304
21303
22313
23313
24313
25313
26314
27324
28324
29324
30324
31324

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in January

Winds average 8 km/h in January.

Across January, 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 January

DaylightNight

Daylight runs from about 9 h 36 min at the start of January to 10 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over January. Sunrise moves from 7:50 AM to 7:43 AM, and sunset from 5:24 PM to 5:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.67:505:24
29.67:505:24
39.67:505:25
49.67:505:26
59.67:505:26
69.67:515:27
79.67:515:28
89.67:515:29
99.77:515:30
109.77:515:31
119.77:505:32
129.77:505:32
139.77:505:33
149.77:505:34
159.87:505:35
169.87:505:36
179.87:495:37
189.87:495:38
199.87:495:39
209.97:485:40
219.97:485:41
229.97:485:42
239.97:475:43
2410.07:475:44
2510.07:465:45
2610.07:465:46
2710.07:455:47
2810.17:445:48
2910.17:445:49
3010.17:435:50
3110.17:435:51

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.61 kWh/m².

For context, solar energy here swings from a low near 2.3 kWh/m² to a high of 7.5 kWh/m² in July across the year — January's 2.61 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.4Moderate
22.4Moderate
32.4Moderate
42.4Moderate
52.4Moderate
62.5Moderate
72.5Moderate
82.5Moderate
92.5Moderate
102.5Moderate
112.5Moderate
122.5Moderate
132.6Moderate
142.6Moderate
152.6Moderate
162.6Moderate
172.6Moderate
182.6Moderate
192.7Moderate
202.7Moderate
212.7Moderate
222.7Moderate
232.8Moderate
242.8Moderate
252.8Moderate
262.8Moderate
272.9Moderate
282.9Moderate
292.9Moderate
303.0Moderate
313.0Moderate
Planning a trip in January

Hazard calendar for Constantine

In seasonPeak

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

Constantine sees seasonal dust haze (June–July), heaviest in June.

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

Is January a good time to visit Constantine?

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

3.5
Sightseeing
12th-best month of the year
0.0
Beach & pool
12th-best month of the year

January is a weaker month for outdoor sightseeing in Constantine.

What to pack for Constantine in January

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

In January, Constantine sees daytime highs around 12°C and nights near 3°C. Worth packing: a warm layer and rain gear. About 9 days see rain.

a warm layerrain gear

Sea temperature near Constantine in January

The nearest coast averages about 16°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 61 km away) is warmest in August at about 26°C and coldest in February near 15°C.

It's comfortable for a long swim from Jun 2 to Nov 15 — about 5.5 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Cool
Mar15Cool
Apr16Cool
May18Cool
Jun22Refreshing
Jul24Warm
Aug26Warm
Sep25Warm
Oct23Refreshing
Nov20Refreshing
Dec17Cool

UV index in Constantine in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Constantine peaks around July 15 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 15UV 10Dec 20UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar6High
Apr7High
May7Very high
Jun8Very high
Jul10Very high
Aug8Very high
Sep8Very high
Oct6High
Nov3Moderate
Dec2Low

Air quality in Constantine in January

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Constantine is worst in October — around 36 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateModeratePoorModerateOct 936 µg/m³Jul 1730 µg/m³
PM2.5 (µg/m³)Level
Jan31Moderate
Feb32Moderate
Mar33Moderate
Apr36Poor
May33Moderate
Jun32Moderate
Jul30Moderate
Aug32Moderate
Sep36Poor
Oct36Poor
Nov32Moderate
Dec32Moderate
Location & terrain

Where is Constantine?

Constantine sits at 36.4°N, 6.6°E, 574 m above sea level, in Algeria. The nearest listed city is Hamma Bouziane, 5.0 km away.

Topography around Constantine

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

Within 3 km, the terrain around Constantine has significant variations in elevation — a maximum elevation change of 443 m around an average of 566 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,019 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,697 m.

The land around Constantine is covered by artificial surfaces (47%), grassland (23%) and trees (21%) within 3 km, cropland (49%) and grassland (31%) within 16 km, and cropland (43%) and grassland (27%) within 80 km.

3 km
443 m
16 km
1,019 m
80 km
1,697 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Hamma Bouziane 5.0 km · Didouche Mourad 10 km · El Khroub 13 km · Ali Mendjeli 14 km · Aïn Smara 15 km · Zighout Youcef 21 km · Grarem 31 km · Mila 33 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
Muslim 99%

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 Constantine (36.365°, 6.6147°, elevation 574 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).