Kollo weather in December

In December, Kollo sees average daytime highs of 33°C and overnight lows near 18°C, with 0 mm of rain across 0 wet days and about 11.2 hours of daylight. It is the 10th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 34°C in the first days to 31°C by the end. The sky is clear or mostly clear about 70% of the time in December, and the air most often feels dry.

Daylight stretches from about 11 h 18 min at the start of December to 11 h 12 min by month's end. Set against the rest of the year, December is Kollo's 2nd-clearest and 4th-windiest month. For the whole year in context, see Kollo's year-round climate.

Daytime high
33°
10th warmest
Overnight low
18°
2nd coldest
Rainfall
0 mm
0 wet days
Daylight
11 h 12 min
7:10 AM – 6:23 PM
Cloud cover
27%
2nd clearest
Wind
12 km/h
4th windiest
Solar energy
5.68 kWh/m²
Travel score
4.9
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 34°C in the first days to 31°C by the end.

A typical December day in Kollo reaches about 33°C in the afternoon and slips back to 18°C overnight — a 15°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 36°C. Set against its neighbours, December runs about 3°C cooler than November and about 1°C warmer than January.

10°20°30°40°151015202531
Avg high (°C)Avg low (°C)
13419
23418
33418
43418
53418
63418
73418
83418
93318
103318
113318
123318
133318
143318
153318
163318
173217
183217
193217
203217
213217
223217
233217
243217
253117
263117
273117
283117
293117
303116
313116

How December really feels in Kollo

Once humidity and wind are folded in, December averages 20 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
20
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Kollo weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 17°0011.35.7
Feb34° / 20°00.111.63.7
Mar38° / 23°10.311.91.2
Apr40° / 27°30.912.30.0
May40° / 29°92.512.60.3
Jun37° / 27°255.412.81.7
Jul34° / 26°6811.612.73.0
Aug32° / 24°13215.712.43.5
Sep34° / 25°507.512.13.2
Oct37° / 25°92.311.71.8
Nov36° / 20°0011.42.6
Dec33° / 18°0011.24.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 70% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 18%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17822
27822
37723
47723
57723
67822
77822
87822
97921
107921
118020
128020
138119
148218
158218
168317
178317
188317
198515
208515
218515
228515
238614
248614
258614
268614
278614
288614
298614
308614
318614

Chance of precipitation in December

Any precipitation

Kollo 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.

0%10%20%30%151015202531
Rain chance (%)
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310

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.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1991
2991
3991
4991
5991
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

Wind in December

Winds average 12 km/h in December.

Across December, daily wind ranges from about 11 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 18 min at the start of December to 11 h 12 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 7:02 AM to 7:17 AM, and sunset from 6:19 PM to 6:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.37:026:19
211.37:036:19
311.37:036:19
411.37:046:19
511.37:046:20
611.27:056:20
711.27:056:20
811.27:066:20
911.27:076:21
1011.27:076:21
1111.27:086:21
1211.27:086:22
1311.27:096:22
1411.27:096:23
1511.27:106:23
1611.27:106:23
1711.27:116:24
1811.27:116:24
1911.27:126:25
2011.27:126:25
2111.27:136:26
2211.27:136:26
2311.27:146:27
2411.27:146:27
2511.27:156:28
2611.27:156:28
2711.27:156:29
2811.27:166:29
2911.27:166:30
3011.27:176:30
3111.27:176:31

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.68 kWh/m².

For context, solar energy here swings from a low near 5.6 kWh/m² to a high of 7.02 kWh/m² in April across the year — December's 5.68 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.8Bright
65.8Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.7Bright
165.7Bright
175.7Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in December

Hazard calendar for Kollo

In seasonPeak

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

Kollo sees seasonal dust haze (January–July), heaviest in March.

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

Is December a good time to visit Kollo?

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

4.9
Sightseeing
2nd-best month of the year
8.2
Beach & pool
2nd-best month of the year

December is a reasonable time to visit Kollo for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Kollo in December

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

In December, Kollo sees daytime highs around 33°C and nights near 18°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Kollo in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kollo peaks around August 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highAug 18UV 13Dec 13UV 8
UV index (midday)Level
Jan10Very high
Feb11Extreme
Mar13Extreme
Apr10Extreme
May10Extreme
Jun11Extreme
Jul11Extreme
Aug13Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Kollo 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 Kollo is worst in February — around 97 µg/m³ PM2.5 (unhealthy), about 5.0× the cleanest month (August, 20 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyFeb 2197 µg/m³Aug 1320 µg/m³
PM2.5 (µg/m³)Level
Jan87Unhealthy
Feb97Unhealthy
Mar96Unhealthy
Apr74Unhealthy
May46Poor
Jun34Moderate
Jul22Moderate
Aug20Moderate
Sep26Moderate
Oct48Poor
Nov62Unhealthy
Dec77Unhealthy
Location & terrain

Where is Kollo?

Kollo sits at 13.3°N, 2.3°E, 189 m above sea level, in Niger. The nearest listed city is Youri Kourtéré, 10 km away.

DossoTillabéri

Topography around Kollo

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

Within 3 km, the terrain around Kollo has only modest variations in elevation — a maximum elevation change of 32 m around an average of 183 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 97 m; within 80 km, only modest variations in elevation — a maximum elevation change of 119 m.

The land around Kollo is covered by grassland (46%) and cropland (30%) within 3 km, grassland (61%) within 16 km, and grassland (65%) within 80 km.

3 km
32 m
16 km
97 m
80 km
119 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Youri Kourtéré 10 km · Say 23 km · Niamey 34 km · Torodi 62 km · Birnin Gaouré 67 km · Baléyara 85 km · Dosso 97 km · Tillabéri 139 km

Niger travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type A / B / C / D / E / F
220 V · 50 Hz
Prices
≈ 36% of US
price level, 2025
GDP per capita
$775
2025
Happiness
4.9 / 10
World Happiness, 2025
Homicide rate
4.4
per 100k, 2012
Road deaths
25.5
per 100k/yr, 2019
Income group
Low
World Bank
Religion
Muslim 96%ethnic religionist 4%Christian 0%agnostics and other 0%

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 Kollo (13.3043°, 2.339°, elevation 189 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).