Keetmanshoop weather in September

In September, Keetmanshoop sees average daytime highs of 28°C and overnight lows near 12°C, with 4 mm of rain across 0.6 wet days and about 11.8 hours of daylight. It is the 8th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 26°C in the first days to 29°C by the end. The sky is clear or mostly clear about 82% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 24 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Keetmanshoop's 5th-clearest and 6th-windiest month. For the whole year in context, see Keetmanshoop's year-round climate.

Daytime high
28°
8th warmest
Overnight low
12°
5th coldest
Rainfall
4 mm
0.6 wet days
Daylight
11 h 48 min
6:46 AM – 6:37 PM
Cloud cover
17%
5th clearest
Wind
15 km/h
6th windiest
Solar energy
6.52 kWh/m²
Travel score
8.3
out of 10

Keetmanshoop is a city of Namibia.

Density
44/km²
people per km²
Founded
1866

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 26°C in the first days to 29°C by the end.

A typical September day in Keetmanshoop reaches about 28°C in the afternoon and slips back to 12°C overnight — a 15°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 34°C. Set against its neighbours, September runs about 4°C warmer than August and about 3°C cooler than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12610
22611
32611
42711
52711
62711
72712
82712
92712
102712
112812
122812
132812
142813
152813
162813
172813
182813
192813
202813
212813
222813
232813
242913
252914
262914
272914
282914
292914
302914

How September really feels in Keetmanshoop

Once humidity and wind are folded in, September 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

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

Keetmanshoop weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan35° / 21°476.813.53.2
Feb34° / 21°547.512.93.5
Mar32° / 20°436.212.24.5
Apr29° / 16°213.411.47.1
May26° / 12°50.910.79.0
Jun22° / 20.410.49.1
Jul22° / 30.410.59.1
Aug24° / 10.211.19.4
Sep28° / 12°40.611.88.3
Oct31° / 16°61.512.66.0
Nov33° / 18°122.313.34.8
Dec35° / 20°223.813.63.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 82% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 9% of September, with mostly cloudy or overcast conditions the remaining 8%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1946
2946
3946
4937
5937
6937
7937
8937
9937
10937
11928
12919
13919
14919
15919
16919
17919
18919
19919
209010
219010
229010
239010
24919
25919
26919
27919
28928
29928
30928

Chance of precipitation in September

Any precipitation

Keetmanshoop gets around 4 mm of rain over 0.6 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 2% and peaks near 3% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
11
21
31
41
51
61
71
81
91
101
112
122
132
142
152
162
172
183
193
203
213
223
233
243
253
263
273
283
293
303

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
11000
21000
31000
41000
5991
6991
7991
8991
9991
10991
11991
12991
13991
14982
15982
16982
17982
18982
19982
20982
21991
22991
23991
24991
25991
26991
27991
28991
29991
30991

Wind in September

Winds average 15 km/h in September.

Across September, daily wind ranges from about 15 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 24 min at the start of September to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over September. Sunrise moves from 7:04 AM to 6:30 AM, and sunset from 6:31 PM to 6:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.47:046:31
211.57:036:31
311.57:016:32
411.57:006:32
511.66:596:32
611.66:586:33
711.66:576:33
811.66:566:34
911.76:556:34
1011.76:536:35
1111.76:526:35
1211.76:516:35
1311.86:506:36
1411.86:496:36
1511.86:486:37
1611.86:466:37
1711.96:456:38
1811.96:446:38
1911.96:436:38
2012.06:426:39
2112.06:416:39
2212.06:396:40
2312.06:386:40
2412.16:376:41
2512.16:366:41
2612.16:356:42
2712.16:346:42
2812.26:326:42
2912.26:316:43
3012.26:306:43

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.52 kWh/m².

For context, solar energy here swings from a low near 4.03 kWh/m² to a high of 8.7 kWh/m² in December across the year — September's 6.52 kWh/m² falls in the middle.

02468151015202530
Solar energy (kWh/m²)Level
16.0Bright
26.0Bright
36.0Intense
46.1Intense
56.1Intense
66.2Intense
76.2Intense
86.2Intense
96.3Intense
106.3Intense
116.3Intense
126.4Intense
136.4Intense
146.4Intense
156.5Intense
166.5Intense
176.5Intense
186.6Intense
196.6Intense
206.7Intense
216.7Intense
226.8Intense
236.8Intense
246.9Intense
256.9Intense
267.0Intense
277.0Intense
287.0Intense
297.1Intense
307.1Intense
Planning a trip in September

Is September a good time to visit Keetmanshoop?

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

8.3
Sightseeing
5th-best month of the year
9.0
Beach & pool
1st-best month of the year

September is one of the better times to visit Keetmanshoop for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Keetmanshoop in September

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

In September, Keetmanshoop sees daytime highs around 28°C and nights near 12°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Keetmanshoop in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Keetmanshoop peaks around January 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighHighVery highExtremeJan 16UV 15Jun 18UV 5
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar13Extreme
Apr9Very high
May6High
Jun5Moderate
Jul6High
Aug7High
Sep10Very high
Oct12Extreme
Nov13Extreme
Dec14Extreme
Location & terrain

Where is Keetmanshoop?

Keetmanshoop sits at 26.6°S, 18.1°E, 998 m above sea level, in Namibia. The nearest listed city is Mariental, 217 km away.

MarientalLüderitzUpingtonRehobothTsabongWindhoekKatuturaGobabis

Topography around Keetmanshoop

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

Within 3 km, the terrain around Keetmanshoop has only modest variations in elevation — a maximum elevation change of 123 m around an average of 998 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 341 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,206 m.

The land around Keetmanshoop is covered by bare terrain (69%) within 3 km, bare terrain (80%) within 16 km, and bare terrain (56%) and grassland (35%) within 80 km.

3 km
123 m
16 km
341 m
80 km
1,206 m
shrubsgrasslandartificial surfacesbare terrain
September weather nearby: Mariental 217 km · Lüderitz 296 km · Upington 372 km · Rehoboth 377 km · Tsabong 434 km · Windhoek 459 km · Katutura 464 km · Gobabis 466 km

Namibia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type D / M
220 V · 50 Hz
Prices
≈ 41% of US
price level, 2025
GDP per capita
$4,876
2025
Happiness
4.8 / 10
World Happiness, 2025
Homicide rate
11.2
per 100k, 2021
Road deaths
34.8
per 100k/yr, 2019
Income group
Lower middle
World Bank
Religion
Christian 98%unaffiliated 2%other 1%

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 Keetmanshoop (-26.5765°, 18.1336°, elevation 998 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).