Bumpe weather in December

In December, Bumpe sees average daytime highs of 31°C and overnight lows near 22°C, with 30 mm of rain across 7.4 wet days and about 11.5 hours of daylight. It is the 5th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 42% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 36 min at the start of December to 11 h 30 min by month's end. Set against the rest of the year, December is Bumpe's 3rd-clearest and 9th-windiest month. For the whole year in context, see Bumpe's year-round climate.

Daytime high
31°
5th warmest
Overnight low
22°
2nd coldest
Rainfall
30 mm
7.4 wet days
Daylight
11 h 30 min
6:57 AM – 6:30 PM
Cloud cover
49%
3rd clearest
Wind
5 km/h
9th windiest
Solar energy
4.79 kWh/m²
Travel score
4.9
out of 10

Bumpe is place in Southern Province, Sierra Leone.

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical December day in Bumpe reaches about 31°C in the afternoon and slips back to 22°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 32°C. Set against its neighbours, December runs about 1°C warmer than November and about 2°C cooler than January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13022
23022
33022
43022
53022
63022
73022
83022
93022
103022
113022
123122
133122
143122
153122
163122
173122
183122
193122
203122
213122
223122
233122
243122
253122
263122
273122
283222
293222
303222
313222

How December really feels in Bumpe

Once humidity and wind are folded in, December averages 31 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
31
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.

Bumpe weather by month

How December compares with the rest of the year at a glance. December is the 5th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 22°194.311.64.4
Feb34° / 23°224.711.73.5
Mar34° / 24°6011.911.93.0
Apr32° / 24°12618.512.22.9
May31° / 23°25627.512.42.7
Jun29° / 23°35429.112.52.8
Jul28° / 22°42929.412.43.2
Aug28° / 22°52229.512.33.3
Sep28° / 22°45929.5123.0
Oct29° / 22°25729.711.82.9
Nov30° / 22°10720.211.63.8
Dec31° / 22°307.411.54.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 23% of December, with mostly cloudy or overcast conditions the remaining 35%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25248
35446
45446
55644
65644
75842
85941
95941
106139
116139
126238
136337
146436
156436
166634
176634
186832
196832
206931
216931
227129
237129
247228
257228
267327
277327
287327
297327
307327
317327

Chance of precipitation in December

Any precipitation

Bumpe gets around 30 mm of rain over 7.4 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 25% and peaks near 43% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
143
242
340
439
537
636
735
833
932
1031
1129
1228
1327
1426
1525
1624
1723
1822
1920
2019
2118
2217
2317
2416
2515
2614
2714
2814
2913
3013
3113

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the oppressive band about 83% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
100018514
200028414
300028513
400028513
500038512
600038611
700038710
800048610
90004879
100004888
110005887
120005896
130005896
140006895
150016894
160016894
170017884
180018883
190018883
200019873
2100210862
2200211852
2300213832
2400314812
2500316792
2601317781
2701419751
2801420741
2911422711
3011424691
3111525671

Wind in December

Winds average 5 km/h in December.

Across December, daily wind ranges from about 4 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 36 min at the start of December to 11 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 6:50 AM to 7:04 AM, and sunset from 6:25 PM to 6:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:506:25
211.66:516:25
311.66:516:25
411.66:526:25
511.66:526:26
611.66:536:26
711.66:536:27
811.66:546:27
911.66:546:27
1011.66:556:28
1111.56:556:28
1211.56:566:28
1311.56:566:29
1411.56:566:29
1511.56:576:30
1611.56:576:30
1711.56:586:31
1811.56:586:31
1911.56:596:31
2011.56:596:32
2111.57:006:32
2211.57:006:33
2311.57:016:33
2411.57:016:34
2511.57:026:34
2611.57:026:35
2711.57:036:35
2811.57:036:36
2911.57:046:36
3011.57:046:37
3111.57:046:37

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.79 kWh/m².

For context, solar energy here swings from a low near 3.26 kWh/m² to a high of 5.58 kWh/m² in February across the year — December's 4.79 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.6Bright
64.6Bright
74.6Bright
84.6Bright
94.6Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.9Bright
214.9Bright
224.9Bright
234.9Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in December

Hazard calendar for Bumpe

In seasonPeak

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

Bumpe's monsoon runs May–October, when most of the year's rain falls.

Bumpe sees seasonal dust haze (February–April), heaviest in February.

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

Is December a good time to visit Bumpe?

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

4.9
Sightseeing
1st-best month of the year
7.1
Beach & pool
2nd-best month of the year

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

What to pack for Bumpe in December

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

In December, Bumpe sees daytime highs around 31°C and nights near 22°C. Pack light clothes. Worth having: sun protection. About 7 days see rain.

light clothessun protection

UV index in Bumpe 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 Bumpe peaks around August 21 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 21UV 13Dec 15UV 8
UV index (midday)Level
Jan10Very high
Feb12Extreme
Mar12Extreme
Apr10Extreme
May12Extreme
Jun11Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov9Very high
Dec8Very high

Air quality in Bumpe 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 Bumpe is worst in April — around 202 µg/m³ PM2.5 (very unhealthy), about 19.4× the cleanest month (August, 10 µg/m³).

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

0306090120150180210JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyVery unhealthyModerateGoodModeratePoorApr 9200 µg/m³Aug 2011 µg/m³
PM2.5 (µg/m³)Level
Jan70Unhealthy
Feb77Unhealthy
Mar194Very unhealthy
Apr202Very unhealthy
May33Moderate
Jun19Moderate
Jul13Moderate
Aug10Good
Sep11Good
Oct17Moderate
Nov25Moderate
Dec50Poor
Location & terrain

Where is Bumpe?

Bumpe sits at 7.9°N, 11.9°W, 38 m above sea level, in Sierra Leone. The nearest listed city is Bo, 20 km away.

BoNjalaMile 91KenemaSegbwemaMakeniLunsarKoidu

Topography around Bumpe

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

Within 3 km, the terrain around Bumpe has only modest variations in elevation — a maximum elevation change of 49 m around an average of 39 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 132 m; within 80 km, large variations in elevation — a maximum elevation change of 820 m.

The land around Bumpe is covered by trees (46%) and shrubs (36%) within 3 km, trees (41%), shrubs (38%) and grassland (21%) within 16 km, and trees (57%) and shrubs (20%) within 80 km.

3 km
49 m
16 km
132 m
80 km
820 m
treesshrubsgrasslandartificial surfaceswaterwetlandmangroves
December weather nearby: Bo 20 km · Njala 40 km · Mile 91 72 km · Kenema 79 km · Segbwema 106 km · Makeni 112 km · Lunsar 112 km · Koidu 132 km

Sierra Leone travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type D / G
230 V · 50 Hz
Prices
≈ 24% of US
price level, 2025
GDP per capita
$846
2025
Happiness
3.3 / 10
World Happiness, 2025
Safe drinking water
11%
of population, 2024
Homicide rate
2.2
per 100k, 2020
Road deaths
33
per 100k/yr, 2019
Income group
Low
World Bank
Religion
Muslim 77%Christian 23%

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 Bumpe (7.8921°, -11.9054°, elevation 38 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).