Iriba weather in December

In December, Iriba sees average daytime highs of 26°C and overnight lows near 11°C, with 0 mm of rain across 0 wet days and about 11.1 hours of daylight. It is the 11th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 27°C in the first days to 25°C by the end. The sky is clear or mostly clear about 78% of the time in December, and the air most often feels dry.

Daylight stretches from about 11 h 12 min at the start of December to 11 h 06 min by month's end. Set against the rest of the year, December is Iriba's 4th-clearest and 4th-windiest month. For the whole year in context, see Iriba's year-round climate.

Daytime high: 26°; 11th warmest
Overnight low: 11°; 2nd coldest
Rainfall: 0 mm; 0 wet days
Daylight: 11 h 06 min; 5:54 AM – 5:00 PM
Cloud cover: 21%; 4th clearest
Wind: 16 km/h; 4th windiest
Solar energy: 5.83 kWh/m²
Travel score: 9.0; out of 10

Iriba is place in Wadi Fira, Chad.

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

← November Iriba 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 27°C in the first days to 25°C by the end.

A typical December day in Iriba reaches about 26°C in the afternoon and slips back to 11°C overnight — a 15°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 30°C. Set against its neighbours, December runs about 3°C cooler than November and on par with 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)	28	28	27	27	27	27	27	27	27	27	26	26	26	26	26	26	26	26	26	25	25	25	25	25	25	25	25	25	25	25	25
Avg low (°C)	13	13	13	13	13	13	12	12	12	12	12	12	12	12	11	11	11	11	11	11	11	11	11	11	10	10	10	10	10	10	10

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

How December really feels in Iriba

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.

Iriba weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 8th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	26° / 11°	0	0	11.2	9.1
Feb	28° / 13°	0	0	11.5	7.9
Mar	32° / 17°	0	0	11.9	5.3
Apr	36° / 21°	0	0.1	12.3	3.0
May	37° / 23°	2	0.6	12.7	2.0
Jun	37° / 23°	7	1.6	12.9	2.1
Jul	34° / 22°	83	13.1	12.8	3.1
Aug	32° / 21°	127	17.2	12.5	3.7
Sep	34° / 22°	20	3.8	12.1	3.3
Oct	34° / 21°	1	0.2	11.7	4.3
Nov	29° / 16°	0	0	11.3	7.2
Dec	26° / 11°	0	0	11.1	9.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 78% 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 15%.

	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 (%)	86	86	86	85	84	84	84	84	83	83	83	83	84	84	84	85	85	85	85	86	86	86	87	87	87	87	87	87	88	88	88
Cloudier (%)	14	14	14	15	16	16	16	16	17	17	17	17	16	16	16	15	15	15	15	14	14	14	13	13	13	13	13	13	12	12	12

	Clearer (%)	Cloudier (%)
1	86	14
2	86	14
3	86	14
4	85	15
5	84	16
6	84	16
7	84	16
8	84	16
9	83	17
10	83	17
11	83	17
12	83	17
13	84	16
14	84	16
15	84	16
16	85	15
17	85	15
18	85	15
19	85	15
20	86	14
21	86	14
22	86	14
23	87	13
24	87	13
25	87	13
26	87	13
27	87	13
28	87	13
29	88	12
30	88	12
31	88	12

Chance of precipitation in December

Any precipitation

Iriba gets around 0 mm of rain over 0 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 0% and peaks near 0% 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 (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

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

Across December, daily wind ranges from about 16 km/h on the calmest days to 16 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)	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16
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	16	light breeze
2	16	light breeze
3	16	light breeze
4	16	light breeze
5	16	light breeze
6	16	light breeze
7	16	light breeze
8	16	light breeze
9	16	light breeze
10	16	light breeze
11	16	light breeze
12	16	light breeze
13	16	light breeze
14	16	light breeze
15	16	light breeze
16	16	light breeze
17	16	light breeze
18	16	light breeze
19	16	light breeze
20	16	light breeze
21	16	light breeze
22	16	light breeze
23	16	light breeze
24	16	light breeze
25	16	light breeze
26	16	light breeze
27	16	light breeze
28	16	light breeze
29	16	light breeze
30	16	light breeze
31	16	light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 12 min at the start of December to 11 h 06 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 5:46 AM to 6:01 AM, and sunset from 4:56 PM to 5:08 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)	11.2	11.2	11.2	11.2	11.1	11.1	11.1	11.1	11.1	11.1	11.1	11.1	11.1	11.1	11.1	11.1	11.1	11.1	11.1	11.1	11.1	11.1	11.1	11.1	11.1	11.1	11.1	11.1	11.1	11.1	11.1
Sunrise (AM)	5:46	5:46	5:47	5:47	5:48	5:49	5:49	5:50	5:50	5:51	5:51	5:52	5:52	5:53	5:53	5:54	5:54	5:55	5:55	5:56	5:56	5:57	5:57	5:58	5:58	5:59	5:59	6:00	6:00	6:00	6:01
Sunset (PM)	4:56	4:56	4:56	4:56	4:57	4:57	4:57	4:58	4:58	4:58	4:59	4:59	4:59	5:00	5:00	5:00	5:01	5:01	5:02	5:02	5:03	5:03	5:04	5:04	5:05	5:05	5:06	5:06	5:07	5:07	5:08

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.2	5:46	4:56
2	11.2	5:46	4:56
3	11.2	5:47	4:56
4	11.2	5:47	4:56
5	11.1	5:48	4:57
6	11.1	5:49	4:57
7	11.1	5:49	4:57
8	11.1	5:50	4:58
9	11.1	5:50	4:58
10	11.1	5:51	4:58
11	11.1	5:51	4:59
12	11.1	5:52	4:59
13	11.1	5:52	4:59
14	11.1	5:53	5:00
15	11.1	5:53	5:00
16	11.1	5:54	5:00
17	11.1	5:54	5:01
18	11.1	5:55	5:01
19	11.1	5:55	5:02
20	11.1	5:56	5:02
21	11.1	5:56	5:03
22	11.1	5:57	5:03
23	11.1	5:57	5:04
24	11.1	5:58	5:04
25	11.1	5:58	5:05
26	11.1	5:59	5:05
27	11.1	5:59	5:06
28	11.1	6:00	5:06
29	11.1	6:00	5:07
30	11.1	6:00	5:07
31	11.1	6:01	5:08

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.83 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 5.83 kWh/m² to a high of 7.73 kWh/m² in April across the year — December's 5.83 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)	6.0	5.9	5.9	5.9	5.9	5.9	5.9	5.9	5.9	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8
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	6.0	Bright
2	5.9	Bright
3	5.9	Bright
4	5.9	Bright
5	5.9	Bright
6	5.9	Bright
7	5.9	Bright
8	5.9	Bright
9	5.9	Bright
10	5.8	Bright
11	5.8	Bright
12	5.8	Bright
13	5.8	Bright
14	5.8	Bright
15	5.8	Bright
16	5.8	Bright
17	5.8	Bright
18	5.8	Bright
19	5.8	Bright
20	5.8	Bright
21	5.8	Bright
22	5.8	Bright
23	5.8	Bright
24	5.8	Bright
25	5.8	Bright
26	5.8	Bright
27	5.8	Bright
28	5.8	Bright
29	5.8	Bright
30	5.8	Bright
31	5.8	Bright

Planning a trip in December

Hazard calendar for Iriba

In seasonPeak

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

Iriba sees seasonal dust haze (March–October), heaviest in May.

Dust

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is December a good time to visit Iriba?

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

9.0

Sightseeing

2nd-best month of the year

8.5

Beach & pool

3rd-best month of the year

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

What to pack for Iriba in December

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

In December, Iriba sees daytime highs around 26°C and nights near 11°C. Worth packing: light clothes and sun protection.

light clothessun protection

UV index in Iriba in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Iriba peaks around May 14 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 7 (very high).

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)	9	11	11	12	13	11	10	11	12	11	9	7
Level	Very high	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Extreme	Extreme	Extreme	Very high	High

	UV index (midday)	Level
Jan	9	Very high
Feb	11	Extreme
Mar	11	Extreme
Apr	12	Extreme
May	13	Extreme
Jun	11	Extreme
Jul	10	Very high
Aug	11	Extreme
Sep	12	Extreme
Oct	11	Extreme
Nov	9	Very high
Dec	7	High

Air quality in Iriba 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 Iriba is worst in March — around 70 µg/m³ PM2.5 (unhealthy), about 2.5× the cleanest month (August, 29 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)	54	63	70	56	51	45	41	29	33	46	37	49
Level	Poor	Unhealthy	Unhealthy	Unhealthy	Poor	Poor	Poor	Moderate	Moderate	Poor	Poor	Poor

	PM2.5 (µg/m³)	Level
Jan	54	Poor
Feb	63	Unhealthy
Mar	70	Unhealthy
Apr	56	Unhealthy
May	51	Poor
Jun	45	Poor
Jul	41	Poor
Aug	29	Moderate
Sep	33	Moderate
Oct	46	Poor
Nov	37	Poor
Dec	49	Poor

Location & terrain

Where is Iriba?

Iriba sits at 15.1°N, 22.3°E, 932 m above sea level, in Chad. The nearest listed city is Amdjarass, 123 km away.

Topography around Iriba

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

Within 3 km, the terrain around Iriba has only modest variations in elevation — a maximum elevation change of 46 m around an average of 926 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 154 m; within 80 km, large variations in elevation — a maximum elevation change of 683 m.

The land around Iriba is covered by grassland (54%) and bare terrain (43%) within 3 km, grassland (68%) and bare terrain (30%) within 16 km, and grassland (66%) and bare terrain (30%) within 80 km.

3 km

46 m

grassland 54%

16 km

154 m

grassland 68%

80 km

683 m

grassland 66%

shrubsgrasslandartificial surfacesbare terrain

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

December weather nearby: Amdjarass 123 km · Biltine 157 km · Adré 184 km · El Geneina Fort 184 km · 'Ārdamatā 184 km · Al-Junaynah 186 km · Abéché 209 km · Fada 242 km

Chad travel facts

Travel advisory: Level 4; Do Not Travel
Power plugs: Type C / D / E / F; 220 V · 50 Hz
Prices: ≈ 35% of US; price level, 2025
GDP per capita: $1,022; 2025
Happiness: 4.4 / 10; World Happiness, 2025
Safe drinking water: 6%; of population, 2024
Road deaths: 32.4; per 100k/yr, 2019
Income group: Low; World Bank
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 Iriba (15.1167°, 22.25°, elevation 932 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	28	13
2	28	13
3	27	13
4	27	13
5	27	13
6	27	13
7	27	12
8	27	12
9	27	12
10	27	12
11	26	12
12	26	12
13	26	12
14	26	12
15	26	11
16	26	11
17	26	11
18	26	11
19	26	11
20	25	11
21	25	11
22	25	11
23	25	11
24	25	11
25	25	10
26	25	10
27	25	10
28	25	10
29	25	10
30	25	10
31	25	10

	Clearer (%)	Cloudier (%)
1	86	14
2	86	14
3	86	14
4	85	15
5	84	16
6	84	16
7	84	16
8	84	16
9	83	17
10	83	17
11	83	17
12	83	17
13	84	16
14	84	16
15	84	16
16	85	15
17	85	15
18	85	15
19	85	15
20	86	14
21	86	14
22	86	14
23	87	13
24	87	13
25	87	13
26	87	13
27	87	13
28	87	13
29	88	12
30	88	12
31	88	12

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

	Clearer (%)	Cloudier (%)
1	86	14
2	86	14
3	86	14
4	85	15
5	84	16
6	84	16
7	84	16
8	84	16
9	83	17
10	83	17
11	83	17
12	83	17
13	84	16
14	84	16
15	84	16
16	85	15
17	85	15
18	85	15
19	85	15
20	86	14
21	86	14
22	86	14
23	87	13
24	87	13
25	87	13
26	87	13
27	87	13
28	87	13
29	88	12
30	88	12
31	88	12

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

	Clearer (%)	Cloudier (%)
1	86	14
2	86	14
3	86	14
4	85	15
5	84	16
6	84	16
7	84	16
8	84	16
9	83	17
10	83	17
11	83	17
12	83	17
13	84	16
14	84	16
15	84	16
16	85	15
17	85	15
18	85	15
19	85	15
20	86	14
21	86	14
22	86	14
23	87	13
24	87	13
25	87	13
26	87	13
27	87	13
28	87	13
29	88	12
30	88	12
31	88	12

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