Gaborone weather in September

In September, Gaborone sees average daytime highs of 29°C and overnight lows near 14°C, with 10 mm of rain across 1.5 wet days and about 11.8 hours of daylight. It is the 7th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 27°C in the first days to 30°C by the end. The sky is clear or mostly clear about 80% 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 Gaborone's 5th-clearest and 2nd-windiest month. For the whole year in context, see Gaborone's year-round climate.

Daytime high
29°
7th warmest
Overnight low
14°
5th coldest
Rainfall
10 mm
1.5 wet days
Daylight
11 h 54 min
6:15 AM – 6:06 PM
Cloud cover
20%
5th clearest
Wind
12 km/h
2nd windiest
Solar energy
6.16 kWh/m²
Travel score
7.3
out of 10

Gaborone is capital city of Botswana.

Density
1,458/km²
people per km²
Founded
1965

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 30°C by the end.

A typical September day in Gaborone reaches about 29°C in the afternoon and slips back to 14°C overnight — a 15°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 34°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)
12712
22712
32712
42812
52812
62813
72813
82813
92813
102813
112913
122914
132914
142914
152914
162914
172914
182915
192915
202915
213015
223015
233015
243015
253016
263016
273016
283016
293016
303016

Gaborone weather by month

How September compares with the rest of the year at a glance. September is the 7th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 21°8912.313.44.5
Feb30° / 20°829.812.94.9
Mar29° / 18°598.412.25.9
Apr27° / 15°304.511.47.8
May24° / 10°141.710.89.1
Jun22° / 91.210.58.9
Jul22° / 20.510.69.0
Aug25° / 30.711.19.3
Sep29° / 14°101.511.87.3
Oct31° / 18°335.712.65.4
Nov31° / 19°6810.113.24.6
Dec31° / 20°8512.113.54.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 80% 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 11%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1937
2928
3937
4937
5937
6928
7928
8928
9928
10919
119010
129010
139010
148911
158812
168812
178812
188713
198713
208713
218713
228713
238713
248713
258713
268713
278713
288713
298713
308713

Chance of precipitation in September

Any precipitation

Gaborone gets around 10 mm of rain over 1.5 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 6% and peaks near 9% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
14
24
34
44
54
65
75
85
95
105
115
125
136
146
156
166
176
186
196
206
216
226
236
246
256
267
277
288
298
309

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 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
19910
29910
39910
49910
59910
69910
79910
89910
99910
109910
119910
129910
139910
149910
159910
169910
179910
189910
199910
209910
219820
229820
239820
249730
259730
269640
279550
289361
299361
309271

Wind in September

Winds average 12 km/h in September.

Across September, daily wind ranges from about 11 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
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light 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 6:31 AM to 6:00 AM, and sunset from 6:01 PM to 6:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:316:01
211.56:306:01
311.56:296:02
411.66:286:02
511.66:276:02
611.66:266:03
711.66:256:03
811.76:246:04
911.76:236:04
1011.76:226:04
1111.76:206:05
1211.86:196:05
1311.86:186:05
1411.86:176:06
1511.86:166:06
1611.96:156:06
1711.96:146:07
1811.96:136:07
1911.96:126:08
2012.06:106:08
2112.06:096:08
2212.06:086:09
2312.06:076:09
2412.16:066:09
2512.16:056:10
2612.16:046:10
2712.16:036:11
2812.26:026:11
2912.26:016:11
3012.26:006:12

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.16 kWh/m².

For context, solar energy here swings from a low near 3.98 kWh/m² to a high of 6.87 kWh/m² in November across the year — September's 6.16 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.8Bright
45.8Bright
55.8Bright
65.9Bright
75.9Bright
85.9Bright
96.0Bright
106.0Intense
116.0Intense
126.1Intense
136.1Intense
146.1Intense
156.1Intense
166.2Intense
176.2Intense
186.2Intense
196.3Intense
206.3Intense
216.3Intense
226.3Intense
236.4Intense
246.4Intense
256.4Intense
266.5Intense
276.5Intense
286.5Intense
296.5Intense
306.6Intense
Planning a trip in September

Is September a good time to visit Gaborone?

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

7.3
Sightseeing
6th-best month of the year
8.9
Beach & pool
1st-best month of the year

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

What to pack for Gaborone in September

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

In September, Gaborone sees daytime highs around 29°C and nights near 14°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Gaborone in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Gaborone peaks around January 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 16 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 13UV 14Jun 16UV 5
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar12Extreme
Apr9Very high
May6High
Jun5High
Jul6High
Aug8Very high
Sep9Very high
Oct11Extreme
Nov12Extreme
Dec14Extreme

Air quality in Gaborone 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 Gaborone is worst in June — around 17 µg/m³ PM2.5 (moderate), about 3.3× the cleanest month (December, 5 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 1917 µg/m³Dec 135 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb9Good
Mar10Good
Apr13Moderate
May16Moderate
Jun17Moderate
Jul17Moderate
Aug15Moderate
Sep16Moderate
Oct12Good
Nov6Good
Dec5Good
Location & terrain

Where is Gaborone?

Gaborone sits at 24.7°S, 25.9°E, 1,011 m above sea level, in Botswana. The nearest listed city is Mogoditshane, 5.0 km away.

Topography around Gaborone

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

Within 3 km, the terrain around Gaborone has only modest variations in elevation — a maximum elevation change of 49 m around an average of 1,001 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 409 m; within 80 km, large variations in elevation — a maximum elevation change of 626 m.

The land around Gaborone is covered by artificial surfaces (72%) within 3 km, shrubs (47%) within 16 km, and shrubs (72%) within 80 km.

3 km
49 m
16 km
409 m
80 km
626 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Mogoditshane 5.0 km · Tlokweng 7.0 km · Mmopone 10 km · Gabane 13 km · Ramotswa 24 km · Mochudi 36 km · Thamaga 37 km · Molepolole 50 km

Botswana travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type D / G / M
230 V · 50 Hz
Prices
≈ 38% of US
price level, 2025
GDP per capita
$7,778
2025
Happiness
3.5 / 10
World Happiness, 2025
Safe drinking water
63%
of population, 2024
Homicide rate
11.4
per 100k, 2021
Road deaths
26.4
per 100k/yr, 2019
Income group
Upper middle
World Bank
Religion
Christian 79%none 15%Badimo 4%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 Gaborone (-24.6545°, 25.9086°, elevation 1,011 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).