Mossendjo weather in May

In May, Mossendjo sees average daytime highs of 29°C and overnight lows near 22°C, with 137 mm of rain across 21.7 wet days and about 11.9 hours of daylight. It is the 4th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 30°C in the first days to 29°C by the end. The sky is clear or mostly clear about 1% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 11 h 54 min at the start of May to 11 h 48 min by month's end. Set against the rest of the year, May is Mossendjo's 2nd-clearest and 9th-windiest month. For the whole year in context, see Mossendjo's year-round climate.

Daytime high
29°
4th warmest
Overnight low
22°
10th coldest
Rainfall
137 mm
21.7 wet days
Daylight
11 h 54 min
6:09 AM – 6:01 PM
Cloud cover
79%
2nd clearest
Wind
5 km/h
9th windiest
Solar energy
4.07 kWh/m²
Travel score
3.7
out of 10

Mossendjo is village in Republic of the Congo.

Density
3,821/km²
people per km²

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 30°C in the first days to 29°C by the end.

A typical May day in Mossendjo reaches about 29°C in the afternoon and slips back to 22°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 31°C. Set against its neighbours, May runs on par with April and about 3°C warmer than June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13022
23022
33022
43022
53022
63022
73022
83022
93022
103022
113022
123022
133022
143022
153022
163022
173022
183022
192922
202922
212922
222922
232922
242922
252922
262922
272922
282921
292921
302821
312821

How May really feels in Mossendjo

Once humidity and wind are folded in, May averages 22 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
22
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Mossendjo weather by month

How May compares with the rest of the year at a glance. May is the 4th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 22°24927.712.23.0
Feb30° / 22°2012412.12.9
Mar30° / 22°19126123.0
Apr30° / 22°21225.611.93.0
May29° / 22°13721.711.93.7
Jun27° / 20°163.911.86.9
Jul26° / 19°61.511.87.4
Aug26° / 19°112.611.97.1
Sep28° / 21°4010.5125.7
Oct29° / 21°21026.612.13.2
Nov29° / 21°30928.512.12.9
Dec29° / 21°30429.312.22.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 13% of May, with mostly cloudy or overcast conditions the remaining 86%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11090
21090
31090
41090
51189
61189
71288
81387
91387
101486
111585
121585
131585
141684
151684
161684
171684
181684
191684
201684
211585
221585
231585
241585
251486
261486
271387
281387
291387
301288
311288

Chance of precipitation in May

Any precipitation

Mossendjo gets around 137 mm of rain over 21.7 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 70% and peaks near 87% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
187
286
386
485
584
683
782
881
980
1079
1178
1277
1376
1475
1574
1673
1772
1870
1969
2067
2165
2263
2361
2459
2557
2655
2753
2850
2948
3045
3142

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the oppressive band about 85% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
10199
20199
30199
40199
50298
60298
70298
80298
90397
100397
110496
120595
130595
140694
150793
160991
1701090
1801288
1911485
2011683
2111881
2212178
2312376
2412673
2512871
2613168
2703466
2803763
2904060
3014356
3114653

Wind in May

Winds average 5 km/h in May.

Across May, daily wind ranges from about 4 km/h on the calmest days to 6 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
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 54 min at the start of May to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over May. Sunrise moves from 6:09 AM to 6:11 AM, and sunset from 6:03 PM to 6:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:096:03
211.96:096:03
311.96:096:03
411.96:096:03
511.96:096:03
611.96:096:02
711.96:096:02
811.96:096:02
911.96:096:02
1011.96:096:02
1111.96:096:02
1211.96:096:02
1311.96:096:02
1411.96:096:02
1511.96:096:01
1611.96:096:01
1711.96:106:01
1811.96:106:01
1911.96:106:01
2011.96:106:01
2111.96:106:01
2211.96:106:01
2311.96:106:01
2411.96:106:01
2511.96:106:01
2611.86:106:01
2711.86:116:02
2811.86:116:02
2911.86:116:02
3011.86:116:02
3111.86:116:02

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.07 kWh/m².

For context, solar energy here swings from a low near 3.4 kWh/m² to a high of 4.96 kWh/m² in March across the year — May's 4.07 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
14.3Bright
24.3Bright
34.3Bright
44.3Bright
54.3Bright
64.3Bright
74.3Bright
84.2Bright
94.2Bright
104.2Bright
114.2Bright
124.2Bright
134.2Bright
144.1Bright
154.1Bright
164.1Bright
174.1Bright
184.1Bright
194.0Bright
204.0Bright
214.0Moderate
224.0Moderate
233.9Moderate
243.9Moderate
253.8Moderate
263.8Moderate
273.8Moderate
283.7Moderate
293.7Moderate
303.7Moderate
313.6Moderate
Planning a trip in May

Hazard calendar for Mossendjo

In seasonPeak

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

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

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

Is May a good time to visit Mossendjo?

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

3.7
Sightseeing
5th-best month of the year
4.9
Beach & pool
5th-best month of the year

May is a weaker month for outdoor sightseeing in Mossendjo.

What to pack for Mossendjo in May

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

In May, Mossendjo sees daytime highs around 29°C and nights near 22°C. Pack light clothes and rain gear. About 22 days see rain.

light clothesrain gear

UV index in Mossendjo in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mossendjo peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highVery highExtremeMar 16UV 15Jun 18UV 7
UV index (midday)Level
Jan13Extreme
Feb13Extreme
Mar15Extreme
Apr13Extreme
May10Very high
Jun7High
Jul9Very high
Aug9Very high
Sep12Extreme
Oct14Extreme
Nov11Extreme
Dec10Extreme

Air quality in Mossendjo in May

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Mossendjo is worst in July — around 28 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (November, 10 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateJul 1128 µg/m³Nov 1210 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb19Moderate
Mar14Moderate
Apr12Moderate
May19Moderate
Jun28Moderate
Jul28Moderate
Aug25Moderate
Sep18Moderate
Oct11Good
Nov10Good
Dec14Moderate
Location & terrain

Where is Mossendjo?

Mossendjo sits at 2.9°S, 12.7°E, 448 m above sea level, in Republic of the Congo. The nearest listed city is Sibiti, 108 km away.

SibitiLoudimaDolisieNkayiKayesMoandaFrancevilleMouyondzi

Topography around Mossendjo

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

Within 3 km, the terrain around Mossendjo has only modest variations in elevation — a maximum elevation change of 133 m around an average of 448 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 338 m; within 80 km, large variations in elevation — a maximum elevation change of 751 m.

The land around Mossendjo is covered by trees (65%) and grassland (29%) within 3 km, trees (93%) within 16 km, and trees (88%) within 80 km.

3 km
133 m
16 km
338 m
80 km
751 m
treesgrasslandartificial surfaces
May weather nearby: Sibiti 108 km · Loudima 136 km · Dolisie 139 km · Nkayi 152 km · Kayes 154 km · Moanda 163 km · Franceville 176 km · Mouyondzi 179 km

Republic of the Congo travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
230 V · 50 Hz
Prices
≈ 35% of US
price level, 2025
GDP per capita
$2,515
2025
Happiness
4.5 / 10
World Happiness, 2025
Safe drinking water
46%
of population, 2021
Road deaths
29.7
per 100k/yr, 2019
Income group
Lower middle
World Bank
Religion
Roman Catholic 33%Awakening Churches/Christian Revival 22%Protestant 20%none 11%

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 Mossendjo (-2.9497°, 12.7042°, elevation 448 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).