Impfondo weather in May

In May, Impfondo sees average daytime highs of 31°C and overnight lows near 24°C, with 98 mm of rain across 18.8 wet days and about 12.1 hours of daylight. It is the 5th-warmest and 7th-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 18% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 12 h 06 min at the start of May to 12 h 06 min by month's end. Set against the rest of the year, May is Impfondo's 4th-clearest and 8th-windiest month. For the whole year in context, see Impfondo's year-round climate.

Daytime high
31°
5th warmest
Overnight low
24°
11th coldest
Rainfall
98 mm
18.8 wet days
Daylight
12 h 06 min
5:42 AM – 5:46 PM
Cloud cover
69%
4th clearest
Wind
5 km/h
8th windiest
Solar energy
5.07 kWh/m²
Travel score
3.6
out of 10

Impfondo is city.

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

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

A typical May day in Impfondo reaches about 31°C in the afternoon and slips back to 24°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 33°C. Set against its neighbours, May runs on par with April and about 1°C warmer than June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13124
23124
33124
43124
53124
63124
73124
83124
93124
103124
113124
123124
133124
143124
153124
163124
173124
183124
193124
203124
213124
223124
233124
243123
253123
263123
273123
283123
293123
303023
313023

How May really feels in Impfondo

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

Impfondo weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 22°458.411.94.3
Feb32° / 23°7311.511.93.6
Mar32° / 24°13917.9123.2
Apr31° / 24°12019.2123.3
May31° / 24°9818.812.13.6
Jun30° / 23°7915.812.14.2
Jul29° / 23°891812.14.2
Aug29° / 23°13022.312.13.8
Sep29° / 22°15323.7123.5
Oct30° / 23°14923.3123.5
Nov30° / 23°12621.111.93.6
Dec31° / 23°6111.911.94.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 18% of May, with mostly cloudy or overcast conditions the remaining 64%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
23070
33169
43169
53268
63367
73466
83466
93466
103664
113664
123763
133763
143763
153862
163862
173961
183961
193961
203862
213862
223862
233862
243862
253763
263664
273664
283664
293664
303664
313664

Chance of precipitation in May

Any precipitation

Impfondo gets around 98 mm of rain over 18.8 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 61% and peaks near 64% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
164
264
364
463
563
663
763
863
963
1062
1162
1262
1362
1461
1561
1661
1760
1860
1960
2060
2159
2259
2359
2459
2558
2658
2758
2858
2957
3057
3156

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 82% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
108020
207921
307921
407921
507921
607921
707921
807921
908020
1008020
1108020
1208020
1308020
1408020
1508020
1608020
1708119
1808119
1908218
2008218
2108317
2208317
2308416
2408416
2508515
2608614
2718613
2818712
2918811
3018910
311909

Wind in May

Winds average 5 km/h in May.

Across May, 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 May

DaylightNight

Daylight runs from about 12 h 06 min at the start of May to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over May. Sunrise moves from 5:43 AM to 5:43 AM, and sunset from 5:47 PM to 5:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.15:435:47
212.15:435:47
312.15:435:46
412.15:435:46
512.15:435:46
612.15:435:46
712.15:425:46
812.15:425:46
912.15:425:46
1012.15:425:46
1112.15:425:46
1212.15:425:46
1312.15:425:46
1412.15:425:46
1512.15:425:46
1612.15:425:46
1712.15:425:46
1812.15:425:46
1912.15:425:46
2012.15:425:46
2112.15:425:47
2212.15:425:47
2312.15:425:47
2412.15:425:47
2512.15:425:47
2612.15:425:47
2712.15:425:47
2812.15:425:47
2912.15:425:47
3012.15:425:48
3112.15:435:48

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.07 kWh/m².

For context, solar energy here swings from a low near 4.7 kWh/m² to a high of 5.57 kWh/m² in February across the year — May's 5.07 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.1Bright
125.1Bright
135.1Bright
145.1Bright
155.1Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
264.9Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
314.9Bright
Planning a trip in May

Is May a good time to visit Impfondo?

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

3.6
Sightseeing
6th-best month of the year
5.2
Beach & pool
6th-best month of the year

May is a weaker month for outdoor sightseeing in Impfondo.

What to pack for Impfondo in May

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

In May, Impfondo sees daytime highs around 31°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 19 days see rain.

light clothesrain gearsun protection

UV index in Impfondo in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Impfondo peaks around April 11 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 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 highExtremeVery highApr 11UV 13Jun 20UV 8
UV index (midday)Level
Jan11Extreme
Feb12Extreme
Mar13Extreme
Apr13Extreme
May11Extreme
Jun8Very high
Jul9Very high
Aug12Extreme
Sep12Extreme
Oct12Extreme
Nov10Very high
Dec8Very high

Air quality in Impfondo 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 Impfondo is worst in February — around 50 µg/m³ PM2.5 (poor), about 5.0× the cleanest month (October, 10 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateGoodModerateFeb 1649 µg/m³Oct 910 µg/m³
PM2.5 (µg/m³)Level
Jan37Poor
Feb50Poor
Mar39Poor
Apr23Moderate
May17Moderate
Jun22Moderate
Jul25Moderate
Aug20Moderate
Sep10Good
Oct10Good
Nov17Moderate
Dec27Moderate
Location & terrain

Where is Impfondo?

Impfondo sits at 1.6°N, 18.1°E, 323 m above sea level, in Republic of the Congo. The nearest listed city is Bétou, 168 km away.

BétouMindouliMbandakaBolengePokolaOuessoLibenge

Topography around Impfondo

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

Within 3 km, the terrain around Impfondo has only modest variations in elevation — a maximum elevation change of 28 m around an average of 320 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 43 m; within 80 km, only modest variations in elevation — a maximum elevation change of 61 m.

The land around Impfondo is covered by trees (47%) and water (30%) within 3 km, trees (87%) within 16 km, and trees (93%) within 80 km.

3 km
28 m
16 km
43 m
80 km
61 m
treesgrasslandartificial surfaceswaterwetland
May weather nearby: Bétou 168 km · Mindouli 173 km · Mbandaka 176 km · Bolenge 181 km · Pokola 195 km · Basankusu 199 km · Ouesso 223 km · Libenge 235 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 Impfondo (1.618°, 18.0598°, elevation 323 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).