Arerti weather in January

In January, Arerti sees average daytime highs of 33°C and overnight lows near 23°C, with 3 mm of rain across 0.7 wet days and about 11.3 hours of daylight. It is the 12th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 64% 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 Arerti's 7th-clearest and 3rd-windiest month. For the whole year in context, see Arerti's year-round climate.

Daytime high
33°
12th warmest
Overnight low
23°
1st coldest
Rainfall
3 mm
0.7 wet days
Daylight
11 h 18 min
6:49 AM – 6:04 PM
Cloud cover
31%
7th clearest
Wind
14 km/h
3rd windiest
Solar energy
4.97 kWh/m²
Travel score
4.3
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 33°C through the month.

A typical January day in Arerti reaches about 33°C in the afternoon and slips back to 23°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 36°C. Set against its neighbours, January runs about 1°C cooler than December and about 1°C cooler than February.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13423
23423
33423
43423
53323
63323
73323
83323
93323
103323
113323
123323
133323
143323
153323
163323
173323
183323
193323
203323
213323
223323
233323
243323
253423
263423
273423
283423
293423
303423
313423

How January really feels in Arerti

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.

Arerti weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 23°30.711.34.3
Feb35° / 24°30.611.53.3
Mar37° / 25°71.311.91.8
Apr40° / 28°122.412.30.3
May42° / 28°81.712.60.0
Jun43° / 29°10.612.80.0
Jul42° / 30°103.212.70.0
Aug41° / 30°195.912.50.0
Sep41° / 29°72.812.10.0
Oct39° / 27°91.811.70.7
Nov37° / 25°40.711.42.2
Dec35° / 24°10.311.23.7

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 64% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 16% of January, with mostly cloudy or overcast conditions the remaining 20%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18812
28812
38614
48515
58416
68317
78119
88119
98020
107921
117822
127822
137723
147723
157723
167624
177624
187624
197723
207723
217822
227822
237822
248020
258020
268020
278020
288020
298020
308020
317921

Chance of precipitation in January

Any precipitation

Arerti gets around 3 mm of rain over 0.7 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 2% and peaks near 3% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
12
22
32
42
52
63
73
83
93
103
113
123
133
143
153
162
172
182
192
202
212
222
232
242
252
262
272
282
292
302
312

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 29% of days. Sticky, muggy-or-worse air turns up on roughly 31% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1322223231
2312124231
3302124241
4292125241
5282026251
6272027251
7261928261
8251928261
9241829271
10231829282
11221730282
12221730292
13211731302
14201631302
15201631313
16191631313
17191531313
18191531313
19201531323
20201530323
21201630323
22201629323
23211628323
24211628323
25221627313
26231727313
27241726303
28251725293
29261825283
30271824283
31281824273

Wind in January

Winds average 14 km/h in January.

Across January, 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.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

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 6:45 AM to 6:49 AM, and sunset from 5:56 PM to 6:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.26:455:56
211.26:455:57
311.26:465:57
411.26:465:58
511.26:465:58
611.26:475:59
711.26:475:59
811.26:476:00
911.26:476:01
1011.26:486:01
1111.26:486:02
1211.26:486:02
1311.26:486:03
1411.26:496:03
1511.36:496:04
1611.36:496:04
1711.36:496:05
1811.36:496:05
1911.36:496:06
2011.36:496:07
2111.36:496:07
2211.36:496:08
2311.36:506:08
2411.36:506:09
2511.36:506:09
2611.36:506:10
2711.36:506:10
2811.46:506:11
2911.46:496:11
3011.46:496:12
3111.46:496:12

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.97 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.97 kWh/m² to a high of 6.92 kWh/m² in May across the year — January's 4.97 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.1Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
154.9Bright
164.9Bright
174.9Bright
184.9Bright
194.9Bright
204.9Bright
214.9Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
315.2Bright
Planning a trip in January

Hazard calendar for Arerti

In seasonPeak

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

Arerti sees seasonal dust haze (June–September), heaviest in July.

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

Is January a good time to visit Arerti?

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

4.3
Sightseeing
1st-best month of the year
7.9
Beach & pool
1st-best month of the year

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

What to pack for Arerti in January

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

In January, Arerti sees daytime highs around 33°C and nights near 23°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Arerti 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 Arerti peaks around March 20 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeVery highMar 20UV 13Dec 14UV 8
UV index (midday)Level
Jan10Very high
Feb11Extreme
Mar13Extreme
Apr12Extreme
May11Extreme
Jun9Very high
Jul8Very high
Aug10Very high
Sep11Extreme
Oct10Very high
Nov9Very high
Dec8Very high

Air quality in Arerti 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 Arerti is worst in August — around 37 µg/m³ PM2.5 (poor), about 2.2× the cleanest month (October, 17 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateAug 1036 µg/m³Oct 2217 µg/m³
PM2.5 (µg/m³)Level
Jan24Moderate
Feb27Moderate
Mar30Moderate
Apr24Moderate
May24Moderate
Jun32Moderate
Jul36Poor
Aug37Poor
Sep25Moderate
Oct17Moderate
Nov18Moderate
Dec20Moderate
Location & terrain

Where is Arerti?

Arerti sits at 13.9°N, 40.7°E, -111 m above sea level, in Ethiopia. The nearest listed city is Wik’ro, 116 km away.

Wik’roIdaga HamusDoloĀdīgratMekeleIntich’oMehoniMaych’ew

Topography around Arerti

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

Within 3 km, the terrain around Arerti has only modest variations in elevation — a maximum elevation change of 39 m around an average of -111 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 265 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,617 m.

The land around Arerti is covered by bare terrain (99%) within 3 km, bare terrain (99%) within 16 km, and bare terrain (97%) within 80 km.

3 km
39 m
16 km
265 m
80 km
1,617 m
shrubsgrasslandbare terrainwater
January weather nearby: Wik’ro 116 km · Idaga Hamus 122 km · Dolo 122 km · Ādīgrat 135 km · Mekele 138 km · Intich’o 168 km · Mehoni 169 km · Maych’ew 178 km

Ethiopia travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type C / E / F / L
220 V · 50 Hz
Prices
≈ 37% of US
price level, 2025
GDP per capita
$933
2025
Happiness
4.0 / 10
World Happiness, 2025
Safe drinking water
14%
of population, 2024
Homicide rate
8.5
per 100k, 2012
Road deaths
28.2
per 100k/yr, 2019
Income group
Low
World Bank
English
Low
EF EPI 499
Religion
Ethiopian Orthodox 44%Muslim 31%Protestant 23%other 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 Arerti (13.95°, 40.6667°, elevation -111 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).