Masasi weather in January

In January, Masasi sees average daytime highs of 32°C and overnight lows near 23°C, with 134 mm of rain across 18.3 wet days and about 12.6 hours of daylight. It is the 4th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 9% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 12 h 36 min at the start of January to 12 h 30 min by month's end. Set against the rest of the year, January is Masasi's 11th-clearest and 7th-windiest month. For the whole year in context, see Masasi's year-round climate.

Daytime high
32°
4th warmest
Overnight low
23°
12th coldest
Rainfall
134 mm
18.3 wet days
Daylight
12 h 36 min
6:17 AM – 6:51 PM
Cloud cover
79%
11th clearest
Wind
9 km/h
7th windiest
Solar energy
5.59 kWh/m²
Travel score
3.3
out of 10

Masasi is town in Mtwara Region, Tanzania.

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical January day in Masasi reaches about 32°C in the afternoon and slips back to 23°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 35°C. Set against its neighbours, January runs about 1°C cooler than December and on par with February.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13223
23223
33223
43223
53223
63223
73223
83223
93223
103223
113223
123223
133123
143123
153123
163123
173123
183123
193123
203123
213223
223223
233223
243223
253223
263223
273223
283223
293223
303123
313123

How January really feels in Masasi

Once humidity and wind are folded in, January averages 31 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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Masasi weather by month

How January compares with the rest of the year at a glance. January is the 4th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 23°13418.312.63.3
Feb31° / 23°13017.212.43.4
Mar30° / 22°15522.412.13.5
Apr30° / 22°6712.611.84.7
May30° / 20°112.111.55.9
Jun29° / 19°10.311.46.9
Jul29° / 18°10.211.47.1
Aug30° / 19°10.411.66.4
Sep32° / 20°20.611.95.4
Oct33° / 21°9212.24.4
Nov34° / 22°32612.53.6
Dec33° / 23°10315.112.63.2

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 13% of January, with mostly cloudy or overcast conditions the remaining 78%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
22971
32773
42575
52377
62377
72278
82080
92080
101981
111882
121882
131882
141981
152080
162179
172179
182179
192377
202377
212377
222377
232377
242377
252377
262377
272377
282278
292179
302080
312080

Chance of precipitation in January

Any precipitation

Masasi gets around 134 mm of rain over 18.3 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 59% and peaks near 62% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
155
255
356
457
558
658
759
860
961
1061
1162
1262
1362
1462
1561
1661
1760
1859
1959
2058
2158
2257
2357
2457
2557
2657
2757
2857
2957
3057
3158

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the oppressive band about 67% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
133760
233661
333562
433463
533364
623266
723068
822969
922969
1022870
1122771
1222771
1322771
1422771
1522771
1622771
1722870
1822870
1922969
2022969
2123068
2223068
2323167
2423167
2523266
2623266
2723266
2823266
2913267
3013267
3113267

Wind in January

Winds average 9 km/h in January.

Across January, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
410calm
510calm
610calm
710calm
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 January

DaylightNight

Daylight runs from about 12 h 36 min at the start of January to 12 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over January. Sunrise moves from 6:09 AM to 6:24 AM, and sunset from 6:46 PM to 6:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.66:096:46
212.66:106:47
312.66:106:47
412.66:116:48
512.66:126:48
612.66:126:48
712.66:136:49
812.66:136:49
912.66:146:49
1012.66:146:50
1112.66:156:50
1212.66:156:50
1312.66:166:50
1412.66:166:51
1512.66:176:51
1612.66:176:51
1712.66:186:51
1812.66:186:51
1912.56:196:52
2012.56:196:52
2112.56:206:52
2212.56:206:52
2312.56:216:52
2412.56:216:52
2512.56:216:52
2612.56:226:52
2712.56:226:52
2812.56:236:52
2912.56:236:52
3012.56:246:52
3112.56:246:52

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.59 kWh/m².

For context, solar energy here swings from a low near 4.99 kWh/m² to a high of 6.53 kWh/m² in November across the year — January's 5.59 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.6Bright
75.6Bright
85.6Bright
95.6Bright
105.6Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
315.5Bright
Planning a trip in January

Hazard calendar for Masasi

In seasonPeak

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

Masasi'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 January a good time to visit Masasi?

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

3.3
Sightseeing
11th-best month of the year
5.1
Beach & pool
10th-best month of the year

January is a weaker month for outdoor sightseeing in Masasi.

What to pack for Masasi in January

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

In January, Masasi sees daytime highs around 32°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 18 days see rain.

light clothesrain gearsun protection

UV index in Masasi in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Masasi peaks around March 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 12UV 15Jun 23UV 9
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar15Extreme
Apr13Extreme
May10Very high
Jun9Very high
Jul9Very high
Aug11Extreme
Sep12Extreme
Oct14Extreme
Nov13Extreme
Dec13Extreme

Air quality in Masasi in January

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Masasi is worst in July — around 18 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (May, 10 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateGoodJul 2418 µg/m³May 1510 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb12Moderate
Mar11Good
Apr11Good
May10Good
Jun12Good
Jul18Moderate
Aug18Moderate
Sep11Good
Oct10Good
Nov12Good
Dec10Good
Location & terrain

Where is Masasi?

Masasi sits at 10.7°S, 38.8°E, 449 m above sea level, in Tanzania. The nearest listed city is Lukuledi, 17 km away.

Topography around Masasi

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

Within 3 km, the terrain around Masasi has significant variations in elevation — a maximum elevation change of 448 m around an average of 421 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 654 m; within 80 km, large variations in elevation — a maximum elevation change of 883 m.

The land around Masasi is covered by trees (29%) and artificial surfaces (27%) within 3 km, shrubs (42%) and grassland (35%) within 16 km, and trees (39%), shrubs (33%) and grassland (20%) within 80 km.

3 km
448 m
16 km
654 m
80 km
883 m
treesshrubsgrasslandcroplandartificial surfaceswater
January weather nearby: Lukuledi 17 km · Nachingwea 38 km · Nangomba 39 km · Nanganga 53 km · Newala Kisimani 59 km · Newala 60 km · Luchingu 62 km · Nyangao 68 km

Tanzania travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type D / G
230 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$1,319
2025
Happiness
3.9 / 10
World Happiness, 2025
Safe drinking water
31%
of population, 2024
Homicide rate
3.7
per 100k, 2020
Road deaths
31.1
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Low
EF EPI 479
Religion
Christian 63%Muslim 34%folk religion 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 Masasi (-10.7167°, 38.8°, elevation 449 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).