Sīrē weather in September

In September, Sīrē sees average daytime highs of 22°C and overnight lows near 12°C, with 303 mm of rain across 26.9 wet days and about 12 hours of daylight. It is the 11th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 22°C through the month. The sky is clear or mostly clear about 10% of the time in September, and the air most often feels dry.

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

Daytime high
22°
11th warmest
Overnight low
12°
7th coldest
Rainfall
303 mm
26.9 wet days
Daylight
12 hours
6:15 AM – 6:18 PM
Cloud cover
61%
9th clearest
Wind
6 km/h
12th windiest
Solar energy
5.56 kWh/m²
Travel score
4.1
out of 10

Sīrē is town in south-central Ethiopia.

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 22°C through the month.

A typical September day in Sīrē reaches about 22°C in the afternoon and slips back to 12°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 24°C. Set against its neighbours, September runs on par with August and on par with October.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
12213
22213
32212
42212
52212
62212
72212
82212
92212
102212
112212
122212
132212
142212
152212
162212
172212
182212
192212
202212
212212
222212
232212
242212
252212
262212
272212
282212
292212
302212

Sīrē weather by month

How September compares with the rest of the year at a glance. September is the 11th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan23° / 10°173.411.68.2
Feb24° / 11°253.911.78.1
Mar25° / 12°879.811.97.1
Apr24° / 13°14517.712.25.7
May24° / 13°13218.312.45.8
Jun24° / 13°601312.56.5
Jul22° / 13°1822812.44.1
Aug22° / 13°32730.112.33.7
Sep22° / 12°30326.9124.1
Oct22° / 12°11715.411.86.0
Nov22° / 10°355.811.67.6
Dec22° / 15311.58.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 37% of September, with mostly cloudy or overcast conditions the remaining 53%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14456
24456
34456
44456
54456
64456
74555
84555
94456
104555
114555
124555
134654
144654
154753
164753
174753
184654
194654
204753
214753
224753
234753
244951
254951
264951
275050
285050
295149
305149

Chance of precipitation in September

Any precipitation

Sīrē gets around 303 mm of rain over 26.9 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 89% and peaks near 96% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
196
295
395
494
594
693
793
892
992
1092
1191
1291
1390
1490
1590
1690
1789
1889
1989
2088
2188
2287
2386
2485
2584
2683
2782
2880
2979
3078

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 93% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
1946
2946
3946
4946
5946
6946
7946
8946
9946
10937
11937
12937
13937
14937
15928
16928
17928
18928
19928
20928
21928
22928
23928
24928
25928
26928
27928
28928
29928
30928

Wind in September

Winds average 6 km/h in September, the calmest month.

Across September, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 12 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 18 minutes over September. Sunrise moves from 6:17 AM to 6:13 AM, and sunset from 6:27 PM to 6:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:176:27
212.26:176:26
312.16:176:25
412.16:176:25
512.16:166:24
612.16:166:24
712.16:166:23
812.16:166:23
912.16:166:22
1012.16:166:21
1112.16:166:21
1212.16:166:20
1312.16:156:20
1412.16:156:19
1512.16:156:18
1612.06:156:18
1712.06:156:17
1812.06:156:17
1912.06:156:16
2012.06:146:15
2112.06:146:15
2212.06:146:14
2312.06:146:14
2412.06:146:13
2512.06:146:12
2612.06:146:12
2712.06:146:11
2812.06:146:11
2911.96:136:10
3011.96:136:09

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.56 kWh/m².

For context, solar energy here swings from a low near 5.19 kWh/m² to a high of 6.39 kWh/m² in March across the year — September's 5.56 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.6Bright
55.6Bright
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
Planning a trip in September

Hazard calendar for Sīrē

In seasonPeak

In September, Sīrē sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Sīrē's monsoon runs July–September, when most of the year's rain falls.

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

Is September a good time to visit Sīrē?

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

4.1
Sightseeing
10th-best month of the year
2.9
Beach & pool
11th-best month of the year

September is a reasonable time to visit Sīrē for sightseeing.

What to pack for Sīrē in September

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

In September, Sīrē sees daytime highs around 22°C and nights near 12°C. Pack rain gear. Worth having: light clothes and sun protection. About 27 days see rain.

rain gearlight clothessun protection

UV index in Sīrē in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Sīrē peaks around March 17 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 10 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 17UV 16Dec 10UV 11
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar16Extreme
Apr15Extreme
May13Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep13Extreme
Oct13Extreme
Nov11Extreme
Dec11Extreme

Air quality in Sīrē 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 Sīrē is worst in June — around 35 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (January, 19 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 1934 µg/m³Jan 1719 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb19Moderate
Mar21Moderate
Apr21Moderate
May25Moderate
Jun35Moderate
Jul30Moderate
Aug27Moderate
Sep32Moderate
Oct26Moderate
Nov21Moderate
Dec19Moderate
Location & terrain

Where is Sīrē?

Sīrē sits at 8.3°N, 39.5°E, 1,755 m above sea level, in Ethiopia. The nearest listed city is Huruta, 24 km away.

Topography around Sīrē

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

Within 3 km, the terrain around Sīrē has significant variations in elevation — a maximum elevation change of 393 m around an average of 1,762 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,291 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,232 m.

The land around Sīrē is covered by cropland (87%) within 3 km, cropland (66%) within 16 km, and cropland (63%) and shrubs (22%) within 80 km.

3 km
393 m
16 km
1,291 m
80 km
3,232 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Huruta 24 km · Wenjī 27 km · Wonji 33 km · Īteya 34 km · Adama 35 km · Welench’ītī 39 km · Mojo 50 km · Āsela 56 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 Sīrē (8.3167°, 39.4833°, elevation 1,755 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).