Rehoboth weather in September

In September, Rehoboth sees average daytime highs of 28°C and overnight lows near 12°C, with 4 mm of rain across 0.8 wet days and about 11.9 hours of daylight. It is the 7th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 27°C in the first days to 29°C by the end. The sky is clear or mostly clear about 83% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 30 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Rehoboth's 5th-clearest and 3rd-windiest month. For the whole year in context, see Rehoboth's year-round climate.

Daytime high
28°
7th warmest
Overnight low
12°
5th coldest
Rainfall
4 mm
0.8 wet days
Daylight
11 h 54 min
6:50 AM – 6:42 PM
Cloud cover
16%
5th clearest
Wind
14 km/h
3rd windiest
Solar energy
6.76 kWh/m²
Travel score
7.9
out of 10

Rehoboth is town in Namibia.

Density
53/km²
people per km²

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 27°C in the first days to 29°C by the end.

A typical September day in Rehoboth reaches about 28°C in the afternoon and slips back to 12°C overnight — a 16°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 32°C. Set against its neighbours, September runs about 4°C warmer than August and about 2°C cooler than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12710
22710
32711
42711
52811
62811
72811
82811
92812
102812
112812
122812
132812
142812
152812
162812
172913
182913
192913
202913
212913
222913
232913
242913
252913
262913
272913
282914
292914
302914

How September really feels in Rehoboth

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.

Rehoboth weather by month

How September compares with the rest of the year at a glance. September is the 7th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 19°688.913.34.7
Feb30° / 19°769.712.85.0
Mar29° / 17°578.512.26.0
Apr27° / 14°243.911.58.0
May25° / 10°30.510.99.3
Jun22° / 10.210.69.3
Jul22° / 00.210.79.3
Aug25° / 00.211.29.5
Sep28° / 12°40.811.97.9
Oct31° / 16°102.112.56.1
Nov31° / 17°173.313.15.4
Dec32° / 19°314.713.44.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 83% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 10% of September, with mostly cloudy or overcast conditions the remaining 6%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1964
2964
3964
4955
5955
6955
7955
8955
9955
10955
11946
12946
13946
14946
15946
16937
17937
18928
19928
20928
21928
22928
23937
24937
25937
26928
27928
28928
29928
30928

Chance of precipitation in September

Any precipitation

Rehoboth gets around 4 mm of rain over 0.8 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 4% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
11
21
31
41
51
61
71
81
91
101
111
122
132
142
152
162
173
183
193
203
214
224
234
244
254
264
274
284
294
304

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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100

Wind in September

Winds average 14 km/h in September.

Across September, daily wind ranges from about 14 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
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 30 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 42 minutes over September. Sunrise moves from 7:06 AM to 6:35 AM, and sunset from 6:37 PM to 6:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.57:066:37
211.57:056:37
311.67:046:38
411.67:036:38
511.67:026:38
611.67:016:39
711.76:596:39
811.76:586:39
911.76:576:40
1011.76:566:40
1111.86:556:40
1211.86:546:41
1311.86:536:41
1411.86:526:41
1511.86:516:42
1611.96:506:42
1711.96:496:42
1811.96:486:43
1911.96:476:43
2012.06:466:43
2112.06:456:44
2212.06:446:44
2312.06:436:44
2412.16:416:45
2512.16:406:45
2612.16:396:45
2712.16:386:46
2812.16:376:46
2912.26:366:46
3012.26:356:47

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.76 kWh/m².

For context, solar energy here swings from a low near 4.57 kWh/m² to a high of 8.26 kWh/m² in December across the year — September's 6.76 kWh/m² falls in the middle.

02468151015202530
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.3Intense
46.4Intense
56.4Intense
66.5Intense
76.5Intense
86.5Intense
96.5Intense
106.6Intense
116.6Intense
126.6Intense
136.7Intense
146.7Intense
156.7Intense
166.8Intense
176.8Intense
186.8Intense
196.9Intense
206.9Intense
216.9Intense
227.0Intense
237.0Intense
247.0Intense
257.1Intense
267.1Intense
277.1Intense
287.2Intense
297.2Intense
307.2Intense
Planning a trip in September

Is September a good time to visit Rehoboth?

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

7.9
Sightseeing
6th-best month of the year
9.1
Beach & pool
1st-best month of the year

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

What to pack for Rehoboth in September

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

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

light clothessun protection

UV index in Rehoboth in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Rehoboth peaks around January 13 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 13UV 16Jun 18UV 6
UV index (midday)Level
Jan16Extreme
Feb14Extreme
Mar14Extreme
Apr10Very high
May7Very high
Jun6High
Jul7High
Aug8Very high
Sep11Extreme
Oct13Extreme
Nov14Extreme
Dec15Extreme

Air quality in Rehoboth in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Rehoboth is worst in August — around 29 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (January, 12 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateAug 1329 µg/m³Jan 2212 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb13Moderate
Mar15Moderate
Apr19Moderate
May23Moderate
Jun27Moderate
Jul28Moderate
Aug29Moderate
Sep26Moderate
Oct22Moderate
Nov18Moderate
Dec14Moderate
Location & terrain

Where is Rehoboth?

Rehoboth sits at 23.3°S, 17.1°E, 1,391 m above sea level, in Namibia. The nearest listed city is Windhoek, 84 km away.

WindhoekKatuturaOkahandjaMarientalGobabisWalvis BaySwakopmundOtjiwarongo

Topography around Rehoboth

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

Within 3 km, the terrain around Rehoboth has only modest variations in elevation — a maximum elevation change of 168 m around an average of 1,395 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 371 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,311 m.

The land around Rehoboth is covered by grassland (38%), shrubs (32%) and artificial surfaces (24%) within 3 km, grassland (59%) and shrubs (38%) within 16 km, and grassland (55%) and shrubs (44%) within 80 km.

3 km
168 m
16 km
371 m
80 km
1,311 m
shrubsgrasslandartificial surfacesbare terrain
September weather nearby: Windhoek 84 km · Katutura 88 km · Okahandja 150 km · Mariental 171 km · Gobabis 215 km · Walvis Bay 267 km · Swakopmund 272 km · Otjiwarongo 321 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 Rehoboth (-23.317°, 17.09°, elevation 1,391 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).