Boma weather in January

In January, Boma sees average daytime highs of 30°C and overnight lows near 23°C, with 176 mm of rain across 21.9 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 1% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 12 h 18 min at the start of January to 12 h 18 min by month's end. Set against the rest of the year, January is Boma's 9th-clearest and 11th-windiest month. For the whole year in context, see Boma's year-round climate.

Daytime high
30°
4th warmest
Overnight low
23°
9th coldest
Rainfall
176 mm
21.9 wet days
Daylight
12 h 18 min
6:08 AM – 6:26 PM
Cloud cover
84%
9th clearest
Wind
5 km/h
11th windiest
Solar energy
4.63 kWh/m²
Travel score
3.4
out of 10

Boma is city in Democratic Republic of the Congo.

Density
4,569/km²
people per km²
Founded
1550

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 30°C through the month.

A typical January day in Boma reaches about 30°C in the afternoon and slips back to 23°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 32°C. Set against its neighbours, January runs on par with December and on par with February.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13023
23023
33023
43023
53023
63023
73023
83023
93023
103023
113023
123023
133023
143023
153023
163023
173023
183023
193023
203023
213023
223023
233023
243023
253023
263023
273023
283023
293023
303023
313023

How January really feels in Boma

Once humidity and wind are folded in, January 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 January is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Boma weather by month

How January compares with the rest of the year at a glance. January is the 4th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°17621.912.33.4
Feb30° / 24°14419.212.23.4
Mar31° / 24°14720.5123.3
Apr31° / 24°18422.211.93.2
May29° / 23°6311.611.74.9
Jun27° / 20°30.411.77.5
Jul26° / 18°20.111.77.7
Aug26° / 19°60.811.87.3
Sep27° / 20°122.6126.8
Oct29° / 22°5210.412.15.0
Nov30° / 23°1552212.33.4
Dec30° / 23°18723.412.33.4

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 8% of January, with mostly cloudy or overcast conditions the remaining 91%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11090
21090
31090
41090
51090
6991
7991
8991
9991
10991
11991
12991
13991
14991
15991
16892
17892
18892
19892
20892
21892
22892
23991
24991
25991
26991
27991
28991
29991
30991
31991

Chance of precipitation in January

Any precipitation

Boma gets around 176 mm of rain over 21.9 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 71% and peaks near 73% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
173
273
373
473
573
673
773
873
973
1073
1173
1273
1373
1473
1572
1672
1771
1871
1970
2070
2169
2269
2369
2468
2568
2668
2768
2868
2968
3068
3169

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the oppressive band about 73% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
137918
237918
337819
437819
537720
637621
727721
827622
927622
1037423
1137423
1237423
1337423
1437423
1537423
1637423
1747323
1847323
1947323
2047323
2147224
2247224
2347224
2447125
2547125
2647026
2747026
2846927
2946828
3036928
3136829

Wind in January

Winds average 5 km/h in January.

Across January, daily wind ranges from about 5 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
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 12 h 18 min at the start of January to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over January. Sunrise moves from 6:01 AM to 6:13 AM, and sunset from 6:21 PM to 6:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:016:21
212.36:016:21
312.36:026:22
412.36:026:22
512.36:036:23
612.36:036:23
712.36:046:23
812.36:046:24
912.36:056:24
1012.36:056:24
1112.36:066:25
1212.36:066:25
1312.36:076:25
1412.36:076:26
1512.36:076:26
1612.36:086:26
1712.36:086:26
1812.36:096:27
1912.36:096:27
2012.36:106:27
2112.36:106:27
2212.36:106:28
2312.36:116:28
2412.36:116:28
2512.36:116:28
2612.36:126:28
2712.36:126:28
2812.36:136:29
2912.36:136:29
3012.36:136:29
3112.36:136:29

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.63 kWh/m².

For context, solar energy here swings from a low near 3.07 kWh/m² to a high of 4.86 kWh/m² in March across the year — January's 4.63 kWh/m² sits near the top of that range.

024151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.5Bright
104.6Bright
114.6Bright
124.6Bright
134.6Bright
144.6Bright
154.6Bright
164.6Bright
174.6Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.7Bright
244.7Bright
254.7Bright
264.7Bright
274.7Bright
284.7Bright
294.7Bright
304.7Bright
314.7Bright
Planning a trip in January

Hazard calendar for Boma

In seasonPeak

In January, Boma sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Boma's rainy season runs November–April, when most of the year's rain falls.

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

Is January a good time to visit Boma?

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

3.4
Sightseeing
7th-best month of the year
4.7
Beach & pool
9th-best month of the year

January is a weaker month for outdoor sightseeing in Boma.

What to pack for Boma in January

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

In January, Boma sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

UV index in Boma in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Boma peaks around March 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 18 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeMar 15UV 15Jul 18UV 6
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar15Extreme
Apr13Extreme
May8Very high
Jun7High
Jul6High
Aug7High
Sep10Very high
Oct13Extreme
Nov11Extreme
Dec11Extreme

Air quality in Boma 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 Boma is worst in July — around 30 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (November, 10 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodJul 1429 µg/m³Nov 1710 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb14Moderate
Mar12Moderate
Apr14Moderate
May20Moderate
Jun27Moderate
Jul30Moderate
Aug24Moderate
Sep19Moderate
Oct13Moderate
Nov10Good
Dec12Good
Location & terrain

Where is Boma?

Boma sits at 5.9°S, 13.1°E, 11 m above sea level, in Democratic Republic of the Congo. The nearest listed city is Matadi, 45 km away.

Buco Zau

Topography around Boma

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

Within 3 km, the terrain around Boma has only modest variations in elevation — a maximum elevation change of 142 m around an average of 27 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 436 m; within 80 km, significant variations in elevation — a maximum elevation change of 585 m.

The land around Boma is covered by artificial surfaces (33%), grassland (23%) and water (20%) within 3 km, grassland (58%) and trees (22%) within 16 km, and trees (54%) and grassland (37%) within 80 km.

3 km
142 m
16 km
436 m
80 km
585 m
treesshrubsgrasslandartificial surfaceswaterwetlandmangroves
January weather nearby: Matadi 45 km · Kenge 67 km · Moanda 76 km · Soyo 82 km · Tshela 96 km · Cabinda 100 km · Tombôco 110 km · Buco Zau 133 km

Democratic Republic of the Congo travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type C / E
220 V · 50 Hz
Prices
≈ 42% of US
price level, 2025
GDP per capita
$807
2025
Happiness
3.8 / 10
World Happiness, 2025
Safe drinking water
12%
of population, 2024
Road deaths
34.9
per 100k/yr, 2019
Income group
Low
World Bank
English
Very low
EF EPI 400

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 Boma (-5.851°, 13.0536°, elevation 11 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).