Barentu weather in September

In September, Barentu sees average daytime highs of 32°C and overnight lows near 20°C, with 53 mm of rain across 11.4 wet days and about 12.1 hours of daylight. It is the 10th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 30°C in the first days to 33°C by the end. The sky is clear or mostly clear about 53% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 h 18 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Barentu's 9th-clearest and 11th-windiest month. For the whole year in context, see Barentu's year-round climate.

Daytime high
32°
10th warmest
Overnight low
20°
6th coldest
Rainfall
53 mm
11.4 wet days
Daylight
12 h 06 min
6:21 AM – 6:26 PM
Cloud cover
41%
9th clearest
Wind
7 km/h
11th windiest
Solar energy
5.96 kWh/m²
Travel score
4.2
out of 10

Barentu is city in Eritrea.

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 30°C in the first days to 33°C by the end.

A typical September day in Barentu reaches about 32°C in the afternoon and slips back to 20°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 34°C. Set against its neighbours, September runs about 3°C warmer than August and about 3°C cooler than October.

15°20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13020
23020
33020
43020
53020
63020
73020
83020
93120
103120
113120
123120
133120
143120
153220
163220
173220
183220
193220
203220
213320
223320
233320
243320
253320
263320
273320
283320
293320
303420

How September really feels in Barentu

Once humidity and wind are folded in, September averages 23 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
23
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Barentu weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 16°00.111.24.7
Feb35° / 17°00.111.53.5
Mar37° / 20°10.211.92.1
Apr38° / 23°31.212.31.0
May38° / 24°164.112.71.3
Jun35° / 23°369.912.92.3
Jul31° / 21°12719.912.83.4
Aug29° / 20°17224.212.53.7
Sep32° / 20°5311.412.14.2
Oct34° / 20°71.611.73.7
Nov34° / 19°20.411.33.9
Dec33° / 17°0011.14.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 53% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 23% of September, with mostly cloudy or overcast conditions the remaining 24%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15050
25248
35446
45545
55743
65941
76238
86436
96634
106931
117129
127327
137624
147723
157921
168119
178317
188416
198614
208713
218812
228911
239010
249010
259010
26919
27919
28919
29919
30919

Chance of precipitation in September

Any precipitation

Barentu gets around 53 mm of rain over 11.4 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 38% and peaks near 70% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
170
269
367
466
564
662
759
857
954
1051
1148
1246
1343
1440
1537
1634
1731
1829
1927
2024
2122
2221
2319
2418
2516
2615
2714
2813
2912
3011

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 68% of days. Sticky, muggy-or-worse air turns up on roughly 69% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1002971
2002962
3002962
4003952
5003952
6004942
7005932
8006922
9007912
10018892
11019882
120211852
131213822
141315801
151417771
161519741
172621701
182823661
193926611
2041128561
2141230531
2251431491
2371633440
2481834400
25102034360
26112135320
27132335290
28152435250
29172634220
30192734200

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 18 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over September. Sunrise moves from 6:20 AM to 6:23 AM, and sunset from 6:38 PM to 6:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:206:38
212.36:216:38
312.36:216:37
412.36:216:36
512.26:216:35
612.26:216:34
712.26:216:34
812.26:216:33
912.26:216:32
1012.26:216:31
1112.26:216:30
1212.16:216:30
1312.16:216:29
1412.16:216:28
1512.16:216:27
1612.16:216:26
1712.16:226:26
1812.16:226:25
1912.06:226:24
2012.06:226:23
2112.06:226:22
2212.06:226:22
2312.06:226:21
2412.06:226:20
2512.06:226:19
2611.96:226:18
2711.96:226:18
2811.96:226:17
2911.96:226:16
3011.96:236:15

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.96 kWh/m².

For context, solar energy here swings from a low near 5.13 kWh/m² to a high of 7.18 kWh/m² in April across the year — September's 5.96 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.6Bright
45.6Bright
55.6Bright
65.7Bright
75.7Bright
85.7Bright
95.8Bright
105.8Bright
115.8Bright
125.9Bright
135.9Bright
146.0Bright
156.0Bright
166.0Intense
176.0Intense
186.1Intense
196.1Intense
206.1Intense
216.1Intense
226.1Intense
236.1Intense
246.2Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
Planning a trip in September

Hazard calendar for Barentu

In seasonPeak

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

Barentu sees seasonal dust haze (June–August), heaviest in July.

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

Is September a good time to visit Barentu?

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

4.2
Sightseeing
3rd-best month of the year
6.5
Beach & pool
6th-best month of the year

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

What to pack for Barentu in September

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

In September, Barentu sees daytime highs around 32°C and nights near 20°C. Pack light clothes. Worth having: rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

UV index in Barentu in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Barentu peaks around April 11 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 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 highApr 11UV 14Dec 13UV 8
UV index (midday)Level
Jan10Extreme
Feb12Extreme
Mar13Extreme
Apr14Extreme
May12Extreme
Jun11Extreme
Jul9Very high
Aug10Very high
Sep11Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Barentu 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 Barentu is worst in March — around 22 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (November, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodJul 1421 µg/m³Nov 2211 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb17Moderate
Mar22Moderate
Apr20Moderate
May19Moderate
Jun21Moderate
Jul22Moderate
Aug20Moderate
Sep16Moderate
Oct14Moderate
Nov11Good
Dec12Good
Location & terrain

Where is Barentu?

Barentu sits at 15.1°N, 37.6°E, 1,009 m above sea level, in Eritrea. The nearest listed city is Sheraro, 87 km away.

SheraroAbalaKerenKassalaMendeferaInda SilasēAdebayeHimora

Topography around Barentu

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

Within 3 km, the terrain around Barentu has only modest variations in elevation — a maximum elevation change of 110 m around an average of 1,006 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 595 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,446 m.

The land around Barentu is covered by grassland (73%) within 3 km, grassland (72%) within 16 km, and grassland (60%) and shrubs (24%) within 80 km.

3 km
110 m
16 km
595 m
80 km
1,446 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Sheraro 87 km · Abala 116 km · Keren 119 km · Kassala 133 km · Mendefera 134 km · Inda Silasē 134 km · Adebaye 134 km · Himora 138 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 Barentu (15.1058°, 37.5907°, elevation 1,009 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).