Boane weather in September

In September, Boane sees average daytime highs of 28°C and overnight lows near 17°C, with 27 mm of rain across 3.4 wet days and about 11.8 hours of daylight. It is the 7th-warmest and 8th-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 57% of the time in September, and the air most often feels comfortable.

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 Boane's 5th-clearest and 1st-windiest month. For the whole year in context, see Boane's year-round climate.

Daytime high
28°
7th warmest
Overnight low
17°
5th coldest
Rainfall
27 mm
3.4 wet days
Daylight
11 h 48 min
5:50 AM – 5:40 PM
Cloud cover
39%
5th clearest
Wind
13 km/h
1st windiest
Solar energy
4.87 kWh/m²
Travel score
7.7
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

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

A typical September day in Boane reaches about 28°C in the afternoon and slips back to 17°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 34°C. Set against its neighbours, September runs about 1°C warmer than August and on par with October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12716
22817
32817
42817
52817
62817
72817
82817
92817
102817
112817
122817
132817
142817
152817
162817
172817
182817
192818
202818
212818
222818
232818
242818
252818
262818
272818
282818
292818
302818

How September really feels in Boane

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.

Boane 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
Jan30° / 22°11511.913.44.7
Feb30° / 22°9310.812.94.7
Mar30° / 21°7310.212.25.3
Apr28° / 19°406.411.46.8
May27° / 16°192.810.78.2
Jun26° / 14°91.810.48.8
Jul25° / 14°9210.58.8
Aug26° / 15°132.211.18.4
Sep28° / 17°273.411.87.7
Oct28° / 18°516.712.66.8
Nov29° / 20°9510.113.35.5
Dec30° / 21°1131113.65.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 57% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 12% of September, with mostly cloudy or overcast conditions the remaining 31%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17822
27822
37723
47723
57624
67624
77525
87426
97327
107327
117228
127030
137030
146931
156931
166832
176733
186634
196634
206634
216535
226535
236535
246436
256337
266238
276238
286139
296040
306040

Chance of precipitation in September

Any precipitation

Boane gets around 27 mm of rain over 3.4 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 11% and peaks near 15% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
18
29
39
49
59
610
710
810
910
1010
1110
1210
1310
1410
1510
1610
1710
1810
1911
2011
2111
2212
2312
2413
2513
2614
2714
2815
2915
3015

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the comfortable band about 41% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13842200
23642210
33543220
43443230
53344230
63244240
73144250
83044260
92944271
102844271
112744281
122644291
132643292
142543302
152443303
162442313
172342314
182241324
192241325
202140336
212040336
222039347
232038357
241937358
251937368
261936379
271835379
2818343810
2918333911
3017323911

Wind in September

Winds average 13 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 13 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light 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 6:07 AM to 5:33 AM, and sunset from 5:34 PM to 5:46 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:075:34
211.56:055:35
311.56:045:35
411.56:035:36
511.66:025:36
611.66:015:36
711.66:005:37
811.65:595:37
911.75:585:38
1011.75:565:38
1111.75:555:38
1211.75:545:39
1311.85:535:39
1411.85:525:40
1511.85:515:40
1611.85:505:40
1711.95:485:41
1811.95:475:41
1911.95:465:42
2012.05:455:42
2112.05:445:43
2212.05:435:43
2312.05:415:43
2412.15:405:44
2512.15:395:44
2612.15:385:45
2712.15:375:45
2812.25:365:46
2912.25:355:46
3012.25:335:46

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.87 kWh/m².

For context, solar energy here swings from a low near 3.49 kWh/m² to a high of 5.83 kWh/m² in January across the year — September's 4.87 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.6Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.9Bright
174.9Bright
184.9Bright
194.9Bright
204.9Bright
214.9Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
Planning a trip in September

Hazard calendar for Boane

In seasonPeak

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

Boane sits in the South Indian Ocean cyclone belt; the season peaks January–March.

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

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

Is September a good time to visit Boane?

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

7.7
Sightseeing
5th-best month of the year
8.1
Beach & pool
4th-best month of the year

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

What to pack for Boane in September

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

In September, Boane sees daytime highs around 28°C and nights near 17°C. Pack light clothes. Worth having: sun protection. About 3 days see rain.

light clothessun protection

Sea temperature near Boane in September

The nearest coast averages about 22°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 55 km away) is warmest in February at about 28°C and coldest in August near 22°C.

The water stays above 20°C all year — warm enough for a swim any month.

20°22°24°26°28°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb28Warm
Mar27Warm
Apr26Warm
May24Warm
Jun23Refreshing
Jul22Refreshing
Aug22Refreshing
Sep22Refreshing
Oct23Refreshing
Nov24Warm
Dec26Warm

UV index in Boane in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Boane peaks around January 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeHighModerateHighVery highExtremeJan 18UV 13Jun 23UV 5
UV index (midday)Level
Jan13Extreme
Feb13Extreme
Mar11Extreme
Apr7High
May6High
Jun5Moderate
Jul5Moderate
Aug6High
Sep8Very high
Oct9Very high
Nov12Extreme
Dec12Extreme

Air quality in Boane 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 Boane is worst in July — around 42 µg/m³ PM2.5 (poor), about 5.2× the cleanest month (January, 8 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModeratePoorModerateGoodJul 1142 µg/m³Jan 178 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb10Good
Mar15Moderate
Apr23Moderate
May35Moderate
Jun41Poor
Jul42Poor
Aug37Poor
Sep30Moderate
Oct19Moderate
Nov13Moderate
Dec11Good
Location & terrain

Where is Boane?

Boane sits at 26.0°S, 32.3°E, 30 m above sea level, in Mozambique. The nearest listed city is Matola, 16 km away.

Topography around Boane

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

Within 3 km, the terrain around Boane has only modest variations in elevation — a maximum elevation change of 71 m around an average of 20 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 286 m; within 80 km, large variations in elevation — a maximum elevation change of 794 m.

The land around Boane is covered by grassland (48%) within 3 km, grassland (53%) within 16 km, and grassland (35%) and trees (34%) within 80 km.

3 km
71 m
16 km
286 m
80 km
794 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
September weather nearby: Matola 16 km · Maputo 27 km · Kamaqhekeza 62 km · Ressano Garcia 75 km · Komatipoort 77 km · Driekoppies 86 km · Manhiça 86 km · Schoemansdal 90 km

Mozambique travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F / M
220 V · 50 Hz
Prices
≈ 37% of US
price level, 2025
GDP per capita
$627
2025
Happiness
5.3 / 10
World Happiness, 2025
Safe drinking water
28%
of population, 2024
Homicide rate
3.6
per 100k, 2011
Road deaths
30
per 100k/yr, 2019
Income group
Low
World Bank
English
Low
EF EPI 465
Religion
Catholic 27%Islam 19%Pentecostal 17%Saio/Zione 16%

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 Boane (-26.0424°, 32.3303°, elevation 30 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).