Mile 91 weather in August

In August, Mile 91 sees average daytime highs of 28°C and overnight lows near 22°C, with 507 mm of rain across 29.7 wet days and about 12.3 hours of daylight. It is the 12th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 0% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 12 h 24 min at the start of August to 12 h 12 min by month's end. Set against the rest of the year, August is Mile 91's 12th-clearest and 1st-windiest month. For the whole year in context, see Mile 91's year-round climate.

Daytime high
28°
12th warmest
Overnight low
22°
4th coldest
Rainfall
507 mm
29.7 wet days
Daylight
12 h 18 min
6:45 AM – 7:01 PM
Cloud cover
91%
12th clearest
Wind
6 km/h
1st windiest
Solar energy
3.25 kWh/m²
Travel score
3.3
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical August day in Mile 91 reaches about 28°C in the afternoon and slips back to 22°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 30°C. Set against its neighbours, August runs on par with July and about 1°C cooler than September.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12822
22822
32822
42822
52822
62822
72822
82822
92822
102822
112822
122822
132822
142822
152822
162822
172822
182822
192822
202822
212822
222822
232822
242822
252822
262822
272822
282822
292822
302822
312822

How August really feels in Mile 91

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

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Mile 91 weather by month

How August compares with the rest of the year at a glance. August is the 12th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 22°102.811.64.0
Feb35° / 23°112.311.73.0
Mar35° / 24°337.611.92.6
Apr34° / 24°7613.512.22.8
May31° / 24°21225.512.42.7
Jun29° / 23°32128.512.52.8
Jul28° / 23°43229.812.43.1
Aug28° / 22°50729.712.33.3
Sep29° / 23°40329.2122.9
Oct30° / 23°22628.811.82.9
Nov30° / 22°8718.311.63.8
Dec32° / 22°19511.54.8

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time in August, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 1% of August, with mostly cloudy or overcast conditions the remaining 99%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1199
2199
3199
4199
5199
6199
7199
8199
9199
10199
11199
12199
13199
14199
15199
16199
17199
18199
19199
20199
21199
22199
23199
24199
25199
26199
27199
28199
29199
30298
31298

Chance of precipitation in August

Any precipitation

Mile 91 gets around 507 mm of rain over 29.7 wet days in August, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 96% and peaks near 97% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
193
294
394
494
594
694
795
895
995
1095
1195
1296
1396
1496
1596
1696
1796
1896
1997
2097
2197
2297
2397
2497
2597
2697
2797
2897
2997
3097
3197

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the oppressive band about 98% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)
1496
2496
3397
4397
5397
6397
7397
8298
9298
10298
11298
12298
13298
14298
15199
16199
17199
18199
19199
20199
21199
22199
23199
24199
250100
260100
270100
280100
290100
300100
310100

Wind in August

Winds average 6 km/h in August, the windiest month of the year.

Across August, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 12 h 24 min at the start of August to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over August. Sunrise moves from 6:44 AM to 6:44 AM, and sunset from 7:06 PM to 6:54 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:447:06
212.46:447:06
312.46:447:06
412.46:447:05
512.46:447:05
612.36:447:05
712.36:447:05
812.36:447:04
912.36:447:04
1012.36:447:04
1112.36:447:03
1212.36:447:03
1312.36:457:03
1412.36:457:02
1512.36:457:02
1612.36:457:01
1712.36:457:01
1812.36:457:01
1912.36:447:00
2012.36:447:00
2112.26:446:59
2212.26:446:59
2312.26:446:58
2412.26:446:58
2512.26:446:57
2612.26:446:57
2712.26:446:56
2812.26:446:56
2912.26:446:55
3012.26:446:55
3112.26:446:54

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 3.25 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.25 kWh/m² to a high of 5.77 kWh/m² in February across the year — August's 3.25 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.2Moderate
23.2Moderate
33.2Moderate
43.2Moderate
53.2Moderate
63.2Moderate
73.2Moderate
83.2Moderate
93.2Moderate
103.2Moderate
113.2Moderate
123.2Moderate
133.2Moderate
143.2Moderate
153.2Moderate
163.2Moderate
173.2Moderate
183.2Moderate
193.3Moderate
203.3Moderate
213.3Moderate
223.3Moderate
233.3Moderate
243.3Moderate
253.3Moderate
263.4Moderate
273.4Moderate
283.4Moderate
293.4Moderate
303.4Moderate
313.4Moderate
Planning a trip in August

Hazard calendar for Mile 91

In seasonPeak

In August, Mile 91 sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Mile 91's monsoon runs June–September, when most of the year's rain falls.

Mile 91 sees seasonal dust haze (February–April), heaviest in February.

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

Is August a good time to visit Mile 91?

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

3.3
Sightseeing
4th-best month of the year
3.6
Beach & pool
12th-best month of the year

August is a weaker month for outdoor sightseeing in Mile 91.

What to pack for Mile 91 in August

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

In August, Mile 91 sees daytime highs around 28°C and nights near 22°C. Pack light clothes and rain gear. About 30 days see rain.

light clothesrain gear

UV index in Mile 91 in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mile 91 peaks around August 20 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 20UV 13Dec 15UV 8
UV index (midday)Level
Jan9Very high
Feb12Extreme
Mar12Extreme
Apr10Extreme
May12Extreme
Jun12Extreme
Jul11Extreme
Aug13Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Mile 91 in August

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Mile 91 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 Mile 91?

Mile 91 sits at 8.5°N, 12.2°W, 77 m above sea level, in Sierra Leone. The nearest listed city is Njala, 34 km away.

NjalaLunsarMakeniPort LokoBumpeBoWaterlooFreetown

Topography around Mile 91

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Mile 91.

Within 3 km, the terrain around Mile 91 has only modest variations in elevation — a maximum elevation change of 31 m around an average of 73 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 438 m; within 80 km, large variations in elevation — a maximum elevation change of 820 m.

The land around Mile 91 is covered by grassland (62%) within 3 km, grassland (58%) and trees (26%) within 16 km, and trees (57%) and grassland (24%) within 80 km.

3 km
31 m
16 km
438 m
80 km
820 m
treesshrubsgrasslandcroplandartificial surfacesmangroves
August weather nearby: Njala 34 km · Lunsar 43 km · Makeni 50 km · Port Loko 71 km · Bumpe 72 km · Bo 77 km · Waterloo 95 km · Freetown 112 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 Mile 91 (8.466°, -12.2146°, elevation 77 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).