Manzini weather in December

In December, Manzini sees average daytime highs of 29°C and overnight lows near 19°C, with 124 mm of rain across 14.7 wet days and about 13.6 hours of daylight. It is the 3rd-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 21% of the time in December, and the air most often feels muggy.

Daylight stretches from about 13 h 30 min at the start of December to 13 h 36 min by month's end. Set against the rest of the year, December is Manzini's 12th-clearest and 5th-windiest month. For the whole year in context, see Manzini's year-round climate.

Daytime high
29°
3rd warmest
Overnight low
19°
10th coldest
Rainfall
124 mm
14.7 wet days
Daylight
13 h 42 min
5:01 AM – 6:40 PM
Cloud cover
67%
12th clearest
Wind
9 km/h
5th windiest
Solar energy
5.64 kWh/m²
Travel score
5.0
out of 10

Manzini is city in Eswatini.

Founded
1885

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical December day in Manzini reaches about 29°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 34°C. Set against its neighbours, December runs about 1°C warmer than November and on par with January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12819
22819
32819
42819
52819
62819
72819
82819
92819
102819
112819
122819
132919
142919
152919
162919
172920
182920
192920
202920
212920
222920
232920
242920
252920
262920
272920
282920
292920
302920
312920

Manzini weather by month

How December compares with the rest of the year at a glance. December is the 3rd-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 20°1321513.54.7
Feb29° / 20°10712.212.95.0
Mar29° / 19°9310.912.25.7
Apr27° / 17°496.811.47.3
May26° / 13°243.510.78.5
Jun24° / 10°112.210.49.1
Jul23° / 10°142.110.59.0
Aug25° / 12°223.811.18.5
Sep27° / 15°36611.87.5
Oct27° / 16°7210.712.66.5
Nov28° / 18°12013.613.35.7
Dec29° / 19°12414.713.65.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 16% of December, with mostly cloudy or overcast conditions the remaining 63%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13565
23466
33466
43466
53466
63466
73367
83367
93466
103565
113664
123664
133763
143763
153862
163862
173862
183961
193862
203862
213862
223961
233961
243961
254060
263961
274159
284258
294258
304357
314456

Chance of precipitation in December

Any precipitation

Manzini gets around 124 mm of rain over 14.7 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 48% and peaks near 50% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
146
247
347
447
547
648
748
849
949
1049
1150
1250
1349
1449
1549
1648
1748
1848
1948
2048
2147
2247
2347
2447
2547
2647
2746
2846
2946
3046
3145

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the muggy band about 44% of days. Sticky, muggy-or-worse air turns up on roughly 53% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
161642352
251542352
351543353
441443363
541443363
631343373
731343384
821243394
921242394
1021142405
1111141415
1211140426
1311039436
1411038447
1511037458
161936459
171934469
1819334710
1918324811
2018314812
2118304913
2217294914
2317295014
2417285015
2516285015
2616275115
2716275016
2816275016
2916265116
3016265116
3116265116

Wind in December

Winds average 9 km/h in December.

Across December, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 30 min at the start of December to 13 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over December. Sunrise moves from 4:58 AM to 5:08 AM, and sunset from 6:31 PM to 6:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.54:586:31
213.64:586:31
313.64:586:32
413.64:586:33
513.64:586:33
613.64:586:34
713.64:596:35
813.64:596:35
913.64:596:36
1013.64:596:37
1113.64:596:37
1213.65:006:38
1313.65:006:39
1413.65:006:39
1513.75:016:40
1613.75:016:40
1713.75:016:41
1813.75:026:41
1913.75:026:42
2013.75:036:42
2113.75:036:43
2213.75:046:43
2313.75:046:44
2413.75:046:44
2513.75:056:45
2613.75:066:45
2713.75:066:46
2813.75:076:46
2913.75:076:46
3013.65:086:47
3113.65:086:47

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.64 kWh/m².

For context, solar energy here swings from a low near 3.53 kWh/m² to a high of 5.71 kWh/m² in January across the year — December's 5.64 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.6Bright
155.6Bright
165.6Bright
175.7Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.8Bright
245.8Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in December

Hazard calendar for Manzini

In seasonPeak

In December, Manzini sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

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

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

Is December a good time to visit Manzini?

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

5.0
Sightseeing
10th-best month of the year
6.1
Beach & pool
11th-best month of the year

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

What to pack for Manzini in December

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

In December, Manzini sees daytime highs around 29°C and nights near 19°C. Pack light clothes and rain gear. Worth having: sun protection. About 15 days see rain.

light clothesrain gearsun protection

UV index in Manzini in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Manzini peaks around December 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeHighModerateHighVery highExtremeDec 18UV 13Jul 10UV 5
UV index (midday)Level
Jan12Extreme
Feb13Extreme
Mar12Extreme
Apr7Very high
May6High
Jun5Moderate
Jul5Moderate
Aug7High
Sep9Very high
Oct9Very high
Nov12Extreme
Dec13Extreme

Air quality in Manzini in December

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Manzini is worst in July — around 43 µg/m³ PM2.5 (poor), about 3.9× the cleanest month (January, 11 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModeratePoorModerateJul 1942 µg/m³Jan 1611 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb13Moderate
Mar18Moderate
Apr26Moderate
May34Moderate
Jun36Poor
Jul43Poor
Aug40Poor
Sep32Moderate
Oct21Moderate
Nov18Moderate
Dec13Moderate
Location & terrain

Where is Manzini?

Manzini sits at 26.5°S, 31.4°E, 601 m above sea level, in Eswatini. The nearest listed city is Lobamba, 18 km away.

LobambaMbabaneFernieRedhillEmpuluzuLukwatiniNhlazatjePiet Retief

Topography around Manzini

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

Within 3 km, the terrain around Manzini has significant variations in elevation — a maximum elevation change of 298 m around an average of 611 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,009 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,824 m.

The land around Manzini is covered by trees (33%), artificial surfaces (27%) and grassland (25%) within 3 km, grassland (42%) and trees (26%) within 16 km, and trees (42%) and grassland (40%) within 80 km.

3 km
298 m
16 km
1,009 m
80 km
1,824 m
treesshrubsgrasslandcroplandartificial surfaces
December weather nearby: Lobamba 18 km · Mbabane 32 km · Fernie 60 km · Redhill 61 km · Empuluzu 64 km · Lukwatini 74 km · Nhlazatje 78 km · Piet Retief 80 km

Eswatini travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type M
230 V · 50 Hz
Prices
≈ 33% of US
price level, 2025
GDP per capita
$4,108
2025
Happiness
3.9 / 10
World Happiness, 2025
Safe drinking water
38%
of population, 2024
Homicide rate
12.5
per 100k, 2021
Road deaths
33.5
per 100k/yr, 2019
Income group
Lower middle
World Bank
Religion
Christian 90%other 8%Muslim 2%

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 Manzini (-26.4988°, 31.38°, elevation 601 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).