Rundu weather in September

In September, Rundu sees average daytime highs of 33°C and overnight lows near 17°C, with 1 mm of rain across 0.4 wet days and about 11.9 hours of daylight. It is the 2nd-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 32°C in the first days to 34°C by the end. The sky is clear or mostly clear about 86% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 36 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Rundu's 4th-clearest and 1st-windiest month. For the whole year in context, see Rundu's year-round climate.

Daytime high
33°
2nd warmest
Overnight low
17°
6th coldest
Rainfall
1 mm
0.4 wet days
Daylight
11 h 54 min
6:38 AM – 6:32 PM
Cloud cover
15%
4th clearest
Wind
12 km/h
1st windiest
Solar energy
6.82 kWh/m²
Travel score
4.8
out of 10

Rundu is human settlement in Namibia.

Founded
1936

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 32°C in the first days to 34°C by the end.

A typical September day in Rundu reaches about 33°C in the afternoon and slips back to 17°C overnight — a 16°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 35°C. Set against its neighbours, September runs about 4°C warmer than August and about 2°C cooler than October.

10°20°30°40°151015202530
Avg high (°C)Avg low (°C)
13115
23215
33215
43215
53215
63215
73216
83216
93216
103216
113316
123316
133317
143317
153317
163317
173317
183317
193318
203318
213418
223418
233418
243418
253418
263419
273419
283419
293419
303419

How September really feels in Rundu

Once humidity and wind are folded in, September averages 25 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
25
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Rundu weather by month

How September compares with the rest of the year at a glance. September is the 2nd-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 20°16518.6133.9
Feb30° / 20°13216.312.64.2
Mar29° / 19°10614.612.14.7
Apr29° / 17°204.211.66.4
May28° / 13°10.111.28.3
Jun26° / 10°0010.99.4
Jul25° / 00119.4
Aug29° / 12°0011.47.6
Sep33° / 17°10.411.94.8
Oct35° / 20°143.412.43.3
Nov33° / 20°6511.712.83.5
Dec31° / 20°1221713.13.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 86% 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 5%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1982
2973
3973
4973
5973
6973
7973
8973
9964
10964
11964
12955
13955
14955
15955
16955
17955
18946
19946
20946
21946
22946
23946
24946
25946
26946
27946
28946
29946
30946

Chance of precipitation in September

Any precipitation

Rundu gets around 1 mm of rain over 0.4 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 5% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
10
20
30
40
51
61
71
81
91
101
111
121
131
141
151
161
171
181
191
202
212
222
232
243
253
264
274
284
295
305

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 (%)Humid (%)
110000
210000
310000
410000
510000
610000
710000
810000
910000
1010000
1110000
1210000
1310000
1410000
1510000
1610000
1710000
189910
199910
209910
219910
229910
239910
249910
259721
269721
279721
289631
299631
309541

Wind in September

Winds average 12 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 36 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over September. Sunrise moves from 6:51 AM to 6:26 AM, and sunset from 6:30 PM to 6:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:516:30
211.76:506:30
311.76:506:30
411.76:496:30
511.76:486:31
611.76:476:31
711.76:466:31
811.86:456:31
911.86:446:31
1011.86:446:31
1111.86:436:31
1211.86:426:32
1311.86:416:32
1411.96:406:32
1511.96:396:32
1611.96:386:32
1711.96:376:32
1811.96:366:33
1912.06:366:33
2012.06:356:33
2112.06:346:33
2212.06:336:33
2312.06:326:33
2412.06:316:33
2512.16:306:34
2612.16:296:34
2712.16:286:34
2812.16:286:34
2912.16:276:34
3012.16:266:35

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.82 kWh/m².

For context, solar energy here swings from a low near 4.95 kWh/m² to a high of 7.25 kWh/m² in October across the year — September's 6.82 kWh/m² sits near the top of that range.

02468151015202530
Solar energy (kWh/m²)Level
16.4Intense
26.5Intense
36.5Intense
46.5Intense
56.6Intense
66.6Intense
76.6Intense
86.7Intense
96.7Intense
106.7Intense
116.7Intense
126.8Intense
136.8Intense
146.8Intense
156.8Intense
166.8Intense
176.9Intense
186.9Intense
196.9Intense
206.9Intense
216.9Intense
227.0Intense
237.0Intense
247.0Intense
257.0Intense
267.0Intense
277.1Intense
287.1Intense
297.1Intense
307.1Intense
Planning a trip in September

Hazard calendar for Rundu

In seasonPeak

None of Rundu's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Rundu's rainy season runs December–March, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Rundu?

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

4.8
Sightseeing
6th-best month of the year
8.3
Beach & pool
6th-best month of the year

September is a reasonable time to visit Rundu for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Rundu in September

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

In September, Rundu sees daytime highs around 33°C and nights near 17°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Rundu 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 Rundu peaks around January 16 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeJan 16UV 16Jul 11UV 7
UV index (midday)Level
Jan16Extreme
Feb14Extreme
Mar14Extreme
Apr11Extreme
May9Very high
Jun8Very high
Jul7Very high
Aug9Very high
Sep10Very high
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in Rundu 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 Rundu is worst in September — around 49 µg/m³ PM2.5 (poor), about 13.6× the cleanest month (December, 4 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModeratePoorModerateGoodSep 1546 µg/m³Dec 184 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb6Good
Mar6Good
Apr5Good
May7Good
Jun9Good
Jul16Moderate
Aug30Moderate
Sep49Poor
Oct23Moderate
Nov6Good
Dec4Good
Location & terrain

Where is Rundu?

Rundu sits at 17.9°S, 19.8°E, 1,114 m above sea level, in Namibia. The nearest listed city is Ndiyona, 99 km away.

NdiyonaGrootfonteinTsumebOndangwaHelao NafidiOngwediva

Topography around Rundu

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

Within 3 km, the terrain around Rundu has only modest variations in elevation — a maximum elevation change of 63 m around an average of 1,094 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 80 m; within 80 km, only modest variations in elevation — a maximum elevation change of 157 m.

The land around Rundu is covered by artificial surfaces (47%) within 3 km, shrubs (52%) and grassland (29%) within 16 km, and shrubs (87%) within 80 km.

3 km
63 m
16 km
80 m
80 km
157 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Ndiyona 99 km · Grootfontein 255 km · Tsumeb 263 km · Ondangwa 401 km · Helao Nafidi 415 km · Senanga 422 km · Ongwediva 424 km · Menongue 425 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 Rundu (-17.918°, 19.7731°, elevation 1,114 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).