Xai-Xai weather in September

In September, Xai-Xai sees average daytime highs of 28°C and overnight lows near 19°C, with 25 mm of rain across 4.4 wet days and about 11.8 hours of daylight. It is the 8th-warmest and 9th-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 58% of the time in September, and the air most often feels humid.

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 Xai-Xai's 5th-clearest and 2nd-windiest month. For the whole year in context, see Xai-Xai's year-round climate.

Daytime high
28°
8th warmest
Overnight low
19°
5th coldest
Rainfall
25 mm
4.4 wet days
Daylight
11 h 54 min
5:44 AM – 5:35 PM
Cloud cover
36%
5th clearest
Wind
15 km/h
2nd windiest
Solar energy
5.12 kWh/m²
Travel score
7.4
out of 10

Xai-Xai is city in Gaza Province, Mozambique.

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

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 Xai-Xai reaches about 28°C in the afternoon and slips back to 19°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 33°C. Set against its neighbours, September runs about 2°C warmer than August and on par with October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12718
22718
32718
42718
52718
62818
72818
82818
92819
102819
112819
122819
132819
142819
152819
162819
172819
182819
192819
202819
212819
222819
232819
242819
252819
262820
272820
282820
292820
302820

How September really feels in Xai-Xai

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.

Xai-Xai 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
Jan31° / 24°12913.813.44.4
Feb31° / 24°8311.512.94.5
Mar30° / 23°741212.25.0
Apr28° / 21°449.411.46.2
May27° / 19°286.110.87.7
Jun25° / 17°204.810.58.2
Jul25° / 16°184.610.68.4
Aug26° / 17°153.411.18.2
Sep28° / 19°254.411.87.4
Oct28° / 20°376.512.66.4
Nov30° / 22°739.613.25.3
Dec30° / 23°11110.813.54.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 58% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 26%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18218
28218
38119
48119
58020
68020
78020
87822
97822
107723
117723
127624
137525
147525
157327
167327
177327
187228
197129
207129
217030
226931
236931
246832
256733
266733
276733
286634
296634
306535

Chance of precipitation in September

Any precipitation

Xai-Xai gets around 25 mm of rain over 4.4 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 15% and peaks near 18% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
113
214
314
414
514
614
714
814
914
1014
1114
1214
1314
1414
1514
1614
1714
1814
1914
2014
2114
2215
2315
2416
2516
2616
2717
2817
2917
3018

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 41% of days. Sticky, muggy-or-worse air turns up on roughly 17% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
115433570
214423680
313423690
413413790
5124037100
6123938110
7123938120
8113839120
9113740130
10113640130
11103541140
12103442140
13103342150
14103243150
1593243160
1693143170
1793044180
1882944180
1982944190
2082844200
2182744210
2272744220
2372644220
2472643230
2572643240
2672543250
2772542260
2872441270
2972441280
3072440291

Wind in September

Winds average 15 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
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light 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 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 6:01 AM to 5:29 AM, and sunset from 5:30 PM to 5:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:015:30
211.56:005:30
311.55:585:30
411.65:575:31
511.65:565:31
611.65:555:32
711.65:545:32
811.75:535:32
911.75:525:33
1011.75:515:33
1111.75:505:34
1211.85:495:34
1311.85:475:34
1411.85:465:35
1511.85:455:35
1611.95:445:35
1711.95:435:36
1811.95:425:36
1911.95:415:37
2012.05:405:37
2112.05:385:37
2212.05:375:38
2312.05:365:38
2412.15:355:39
2512.15:345:39
2612.15:335:39
2712.15:325:40
2812.25:315:40
2912.25:305:41
3012.25:295:41

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.12 kWh/m².

For context, solar energy here swings from a low near 3.43 kWh/m² to a high of 6.37 kWh/m² in December across the year — September's 5.12 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.1Bright
135.1Bright
145.1Bright
155.1Bright
165.1Bright
175.2Bright
185.2Bright
195.2Bright
205.2Bright
215.2Bright
225.2Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.4Bright
305.4Bright
Planning a trip in September

Hazard calendar for Xai-Xai

In seasonPeak

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

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

Xai-Xai'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 Xai-Xai?

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

7.4
Sightseeing
5th-best month of the year
8.0
Beach & pool
1st-best month of the year

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

What to pack for Xai-Xai in September

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

In September, Xai-Xai sees daytime highs around 28°C and nights near 19°C. Pack light clothes. Worth having: sun protection. About 4 days see rain.

light clothessun protection

Sea temperature near Xai-Xai 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 offshore 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
May25Warm
Jun24Refreshing
Jul23Refreshing
Aug22Refreshing
Sep22Refreshing
Oct23Refreshing
Nov24Warm
Dec26Warm

UV index in Xai-Xai in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Xai-Xai peaks around January 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighModerateHighVery highExtremeJan 19UV 14Jul 11UV 5
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar11Extreme
Apr8Very high
May6High
Jun5Moderate
Jul5Moderate
Aug7High
Sep8Very high
Oct9Very high
Nov12Extreme
Dec12Extreme

Air quality in Xai-Xai 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 Xai-Xai is worst in September — around 16 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (January, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1316 µg/m³Jan 206 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb7Good
Mar7Good
Apr8Good
May10Good
Jun12Good
Jul12Moderate
Aug14Moderate
Sep16Moderate
Oct12Good
Nov9Good
Dec7Good
Location & terrain

Where is Xai-Xai?

Xai-Xai sits at 25.1°S, 33.6°E, 4 m above sea level, in Mozambique. The nearest listed city is Chibuto, 42 km away.

MaputoMatolaRessano Garcia

Topography around Xai-Xai

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

Within 3 km, the terrain around Xai-Xai has only modest variations in elevation — a maximum elevation change of 89 m around an average of 10 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 110 m; within 80 km, only modest variations in elevation — a maximum elevation change of 158 m.

The land around Xai-Xai is covered by cropland (35%) within 3 km, grassland (31%) and cropland (31%) within 16 km, and trees (30%), water (30%) and grassland (27%) within 80 km.

3 km
89 m
16 km
110 m
80 km
158 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Chibuto 42 km · Macia 55 km · Xilembene 56 km · Chokwé 88 km · Manhiça 93 km · Maputo 147 km · Matola 156 km · Ressano Garcia 171 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 Xai-Xai (-25.0519°, 33.6442°, elevation 4 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).