Koidu weather in April

In April, Koidu sees average daytime highs of 32°C and overnight lows near 23°C, with 105 mm of rain across 15.7 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 10% of the time in April, and the air most often feels oppressive.

Daylight stretches from about 12 h 06 min at the start of April to 12 h 18 min by month's end. Set against the rest of the year, April is Koidu's 6th-clearest and 4th-windiest month. For the whole year in context, see Koidu's year-round climate.

Daytime high
32°
4th warmest
Overnight low
23°
12th coldest
Rainfall
105 mm
15.7 wet days
Daylight
12 h 12 min
6:38 AM – 6:50 PM
Cloud cover
71%
6th clearest
Wind
6 km/h
4th windiest
Solar energy
5.4 kWh/m²
Travel score
3.5
out of 10

Koidu is city in Kono District, Sierra Leone.

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

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical April day in Koidu reaches about 32°C in the afternoon and slips back to 23°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 34°C. Set against its neighbours, April runs about 2°C cooler than March and about 2°C warmer than May.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13223
23223
33223
43223
53223
63223
73223
83223
93223
103223
113223
123223
133223
143223
153223
163223
173123
183123
193123
203123
213123
223123
233123
243123
253123
263123
273123
283123
293123
303123

How April really feels in Koidu

Once humidity and wind are folded in, April averages 30 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
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Koidu weather by month

How April compares with the rest of the year at a glance. April 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
Jan32° / 20°112.411.64.9
Feb34° / 22°142.911.73.8
Mar33° / 23°6310.311.93.4
Apr32° / 23°10515.712.23.5
May30° / 23°23525.412.43.2
Jun28° / 22°3352812.53.3
Jul27° / 21°36929.312.53.5
Aug27° / 21°41929.712.33.4
Sep28° / 21°42228.812.13.3
Oct29° / 21°32229.511.83.1
Nov29° / 21°12916.411.64.5
Dec30° / 20°163.111.55.9

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 20% of April, with mostly cloudy or overcast conditions the remaining 70%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14159
24258
34060
44060
54060
63961
73862
83862
93862
103763
113664
123466
133367
143268
153169
163070
172872
182773
192773
202575
212575
222476
232377
242377
252179
262080
271981
281981
291882
301783

Chance of precipitation in April

Any precipitation

Koidu gets around 105 mm of rain over 15.7 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 53% and peaks near 67% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
143
243
343
443
543
644
744
844
945
1046
1147
1249
1350
1451
1553
1654
1755
1857
1958
2059
2159
2260
2361
2462
2563
2664
2765
2865
2966
3067

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the oppressive band about 82% of days. Sticky, muggy-or-worse air turns up on roughly 96% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1724690
2723700
3722710
4622720
5621730
6621730
7620740
8620740
9519760
10519760
11518770
12417790
13416800
14415810
15414820
16313840
17312850
18311860
19310870
20210880
2129890
2228900
2328900
2417920
2517920
2616930
2716930
2816921
2905941
3005941

Wind in April

Winds average 6 km/h in April.

Across April, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 06 min at the start of April to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over April. Sunrise moves from 6:46 AM to 6:32 AM, and sunset from 6:51 PM to 6:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:466:51
212.16:466:51
312.16:456:51
412.16:456:50
512.16:446:50
612.16:446:50
712.16:436:50
812.16:436:50
912.16:426:50
1012.16:416:50
1112.26:416:50
1212.26:406:50
1312.26:406:50
1412.26:396:50
1512.26:396:50
1612.26:386:50
1712.26:386:50
1812.26:376:50
1912.26:376:50
2012.26:366:50
2112.26:366:50
2212.26:366:50
2312.26:356:50
2412.36:356:50
2512.36:346:50
2612.36:346:50
2712.36:346:50
2812.36:336:50
2912.36:336:50
3012.36:326:50

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.4 kWh/m².

For context, solar energy here swings from a low near 3.45 kWh/m² to a high of 5.99 kWh/m² in February across the year — April's 5.4 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.6Bright
55.6Bright
65.6Bright
75.6Bright
85.6Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.4Bright
165.4Bright
175.4Bright
185.4Bright
195.3Bright
205.3Bright
215.3Bright
225.2Bright
235.2Bright
245.2Bright
255.1Bright
265.1Bright
275.1Bright
285.0Bright
295.0Bright
305.0Bright
Planning a trip in April

Hazard calendar for Koidu

In seasonPeak

In April, Koidu sits inside its dust season. The full year is below, with each hazard's peak months called out.

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

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

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

Is April a good time to visit Koidu?

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

3.5
Sightseeing
5th-best month of the year
5.4
Beach & pool
6th-best month of the year

April is a weaker month for outdoor sightseeing in Koidu.

What to pack for Koidu in April

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

In April, Koidu sees daytime highs around 32°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

light clothesrain gearsun protection

UV index in Koidu in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April 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 Koidu peaks around August 22 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 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 22UV 13Dec 14UV 8
UV index (midday)Level
Jan10Very high
Feb12Extreme
Mar13Extreme
Apr11Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov9Very high
Dec8Very high

Air quality in Koidu in April

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Koidu is worst in March — around 233 µg/m³ PM2.5 (very unhealthy), about 25.9× the cleanest month (August, 9 µg/m³).

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

0306090120150180210240JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyVery unhealthyUnhealthyModerateGoodModeratePoorMar 18221 µg/m³Aug 189 µg/m³
PM2.5 (µg/m³)Level
Jan90Unhealthy
Feb98Unhealthy
Mar233Very unhealthy
Apr151Very unhealthy
May27Moderate
Jun18Moderate
Jul11Good
Aug9Good
Sep10Good
Oct16Moderate
Nov22Moderate
Dec45Poor
Location & terrain

Where is Koidu?

Koidu sits at 8.6°N, 11.0°W, 381 m above sea level, in Sierra Leone. The nearest listed city is Segbwema, 72 km away.

SegbwemaKenemaFoya KamaraYende MillimouGueckedouKissidougouBoMakeni

Topography around Koidu

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

Within 3 km, the terrain around Koidu has only modest variations in elevation — a maximum elevation change of 136 m around an average of 379 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 392 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,783 m.

The land around Koidu is covered by grassland (42%), artificial surfaces (30%) and trees (25%) within 3 km, trees (63%) and grassland (35%) within 16 km, and trees (80%) within 80 km.

3 km
136 m
16 km
392 m
80 km
1,783 m
treesshrubsgrasslandartificial surfacesbare terrainwater
April weather nearby: Segbwema 72 km · Kenema 89 km · Foya Kamara 90 km · Yende Millimou 92 km · Gueckedou 93 km · Kissidougou 113 km · Bo 113 km · Makeni 121 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 Koidu (8.6439°, -10.9714°, elevation 381 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).