Assab weather in January

In January, Assab sees average daytime highs of 28°C and overnight lows near 23°C, with 9 mm of rain across 1.7 wet days and about 11.3 hours of daylight. It is the 12th-warmest and 2nd-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 76% of the time in January, and the air most often feels muggy.

Daylight stretches from about 11 h 12 min at the start of January to 11 h 24 min by month's end. Set against the rest of the year, January is Assab's 4th-clearest and 1st-windiest month. For the whole year in context, see Assab's year-round climate.

Daytime high
28°
12th warmest
Overnight low
23°
1st coldest
Rainfall
9 mm
1.7 wet days
Daylight
11 h 18 min
6:39 AM – 5:58 PM
Cloud cover
23%
4th clearest
Wind
30 km/h
1st windiest
Solar energy
5.46 kWh/m²
Travel score
8.3
out of 10

Assab is city in Eritrea.

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 28°C through the month.

A typical January day in Assab reaches about 28°C in the afternoon and slips back to 23°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 29°C. Set against its neighbours, January runs about 1°C cooler than December and on par with February.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12823
22823
32823
42823
52823
62823
72823
82823
92823
102823
112823
122823
132723
142723
152723
162723
172723
182723
192823
202823
212823
222823
232823
242823
252823
262823
272823
282823
292823
302823
312823

How January really feels in Assab

Once humidity and wind are folded in, January 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

January sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Assab weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 23°91.711.38.3
Feb28° / 24°41.211.68.0
Mar30° / 25°30.811.96.9
Apr32° / 27°20.712.35.6
May33° / 29°10.212.64.7
Jun34° / 30°00.112.83.9
Jul35° / 31°80.712.73.4
Aug35° / 31°161.712.43.4
Sep34° / 30°40.512.13.9
Oct32° / 28°30.611.75.2
Nov30° / 25°10.411.46.7
Dec28° / 24°50.811.27.8

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 76% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 11% of January, with mostly cloudy or overcast conditions the remaining 14%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
19010
29010
39010
48911
58812
68713
78713
88614
98614
108614
118515
128515
138515
148515
158416
168416
178416
188416
198515
208515
218515
228614
238614
248614
258713
268812
278812
288812
298812
308713
318713

Chance of precipitation in January

Any precipitation

Assab gets around 9 mm of rain over 1.7 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 5% and peaks near 7% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
14
25
35
45
56
66
76
86
96
107
117
127
137
147
157
167
177
186
196
206
215
225
235
244
254
264
274
284
294
304
314

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the muggy band about 70% of days. Sticky, muggy-or-worse air turns up on roughly 82% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
11226611
22226511
32226511
42226511
52226511
62216611
72216710
82206810
92206810
102196910
112187010
121187110
131177210
141177210
151167211
161167211
171157311
181157311
191157311
201147312
211147312
221147213
231147213
241147114
251147114
261157014
271156915
281156915
291166815
302176615
312186515

Wind in January

Winds average 30 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 30 km/h on the calmest days to 31 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
130windy
230windy
330windy
430windy
530windy
630windy
730windy
830windy
930windy
1030windy
1130windy
1230windy
1330windy
1430windy
1530windy
1630windy
1730windy
1830windy
1930windy
2030windy
2130windy
2230windy
2330windy
2430windy
2530windy
2631windy
2731windy
2831windy
2931windy
3031windy
3131windy

Sunrise & sunset in January

DaylightNight

Daylight runs from about 11 h 12 min at the start of January to 11 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over January. Sunrise moves from 6:35 AM to 6:40 AM, and sunset from 5:50 PM to 6:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.26:355:50
211.26:355:50
311.36:365:51
411.36:365:51
511.36:365:52
611.36:375:52
711.36:375:53
811.36:375:53
911.36:375:54
1011.36:385:54
1111.36:385:55
1211.36:385:56
1311.36:385:56
1411.36:395:57
1511.36:395:57
1611.36:395:58
1711.36:395:58
1811.36:395:59
1911.36:395:59
2011.36:406:00
2111.36:406:00
2211.46:406:01
2311.46:406:01
2411.46:406:02
2511.46:406:02
2611.46:406:03
2711.46:406:03
2811.46:406:04
2911.46:406:04
3011.46:406:05
3111.46:406:05

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.46 kWh/m².

For context, solar energy here swings from a low near 5.43 kWh/m² to a high of 6.97 kWh/m² in April across the year — January's 5.46 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.4Bright
115.4Bright
125.4Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.4Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in January

Hazard calendar for Assab

In seasonPeak

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

Assab sees seasonal dust haze (May–September), heaviest in July.

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

Is January a good time to visit Assab?

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

8.3
Sightseeing
1st-best month of the year
8.7
Beach & pool
5th-best month of the year

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

What to pack for Assab in January

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

In January, Assab sees daytime highs around 28°C and nights near 23°C. Pack light clothes and a windbreaker. Worth having: sun protection.

light clothesa windbreakersun protection

Sea temperature near Assab in January

The nearest coast averages about 26°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 18 km away) is warmest in September at about 32°C and coldest in February near 25°C.

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

25°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb25Warm
Mar26Warm
Apr28Warm
May29Tropical
Jun31Tropical
Jul31Tropical
Aug31Tropical
Sep32Tropical
Oct29Tropical
Nov27Warm
Dec26Warm

UV index in Assab in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Assab peaks around March 23 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highExtremeVery highMar 23UV 12Dec 13UV 7
UV index (midday)Level
Jan10Very high
Feb11Extreme
Mar13Extreme
Apr12Extreme
May11Extreme
Jun10Very high
Jul9Very high
Aug10Very high
Sep10Extreme
Oct10Very high
Nov8Very high
Dec7Very high

Air quality in Assab 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 Assab is worst in July — around 44 µg/m³ PM2.5 (poor), about 2.6× the cleanest month (November, 17 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateJul 1843 µg/m³Nov 1317 µg/m³
PM2.5 (µg/m³)Level
Jan25Moderate
Feb28Moderate
Mar28Moderate
Apr23Moderate
May24Moderate
Jun36Poor
Jul44Poor
Aug39Poor
Sep26Moderate
Oct18Moderate
Nov17Moderate
Dec19Moderate
Location & terrain

Where is Assab?

Assab sits at 13.0°N, 42.7°E, 22 m above sea level, in Eritrea. The nearest listed city is Mocha, 65 km away.

MochaZabīd

Topography around Assab

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

Within 3 km, the terrain around Assab has only modest variations in elevation — a maximum elevation change of 171 m around an average of 16 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 396 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,961 m.

The land around Assab is covered by bare terrain (51%) and water (40%) within 3 km, water (56%) and bare terrain (41%) within 16 km, and bare terrain (55%) and water (44%) within 80 km.

3 km
171 m
16 km
396 m
80 km
1,961 m
artificial surfacesbare terrainwatermangroves
January weather nearby: Mocha 65 km · Obock 130 km · Tadjoura 137 km · Zabīd 146 km · Taiz 152 km · Djibouti 164 km · Arta 165 km · Balbala 166 km

Eritrea travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / L
230 V · 50 Hz
Prices
≈ 33% of US
price level, 2021
GDP per capita
$689
2011
Homicide rate
15.6
per 100k, 2012
Road deaths
37.9
per 100k/yr, 2019
Income group
Low
World Bank

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 Assab (13.0092°, 42.7394°, elevation 22 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. 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).