Semender weather in September

In September, Semender sees average daytime highs of 22°C and overnight lows near 18°C, with 65 mm of rain across 9 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 24°C in the first days to 20°C by the end. The sky is clear or mostly clear about 44% of the time in September, and the air most often feels humid.

Daylight stretches from about 13 hours at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Semender's 3rd-clearest and 4th-windiest month. For the whole year in context, see Semender's year-round climate.

Daytime high
22°
4th warmest
Overnight low
18°
9th coldest
Rainfall
65 mm
9 wet days
Daylight
12 h 18 min
5:36 AM – 5:53 PM
Cloud cover
47%
3rd clearest
Wind
14 km/h
4th windiest
Solar energy
3.92 kWh/m²
Travel score
7.0
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 24°C in the first days to 20°C by the end.

A typical September day in Semender reaches about 22°C in the afternoon and slips back to 18°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 26°C. Set against its neighbours, September runs about 5°C cooler than August and about 6°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12520
22520
32420
42420
52419
62419
72419
82419
92319
102319
112318
122318
132318
142318
152218
162218
172217
182217
192217
202117
212117
222116
232116
242116
252116
262016
272016
282015
292015
302015

How September really feels in Semender

Once humidity and wind are folded in, September 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

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

Semender weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 266.64.39.20.0
Feb / 266.14.310.20.1
Mar / 276.72.111.60.9
Apr12° / 317.20.113.13.3
May19° / 14°398.3014.46.2
Jun24° / 19°387015.17.4
Jul27° / 22°407.5014.87.3
Aug27° / 22°527.6013.87.2
Sep22° / 18°659012.37.0
Oct17° / 12°498.70.110.85.4
Nov10° / 427.61.59.52.4
Dec / 276.42.78.90.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 44% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 20% of September, with mostly cloudy or overcast conditions the remaining 36%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16931
26931
36931
46931
56832
66832
76832
86832
96733
106733
116733
126634
136634
146634
156634
166535
176436
186436
196436
206337
216238
226139
236040
245941
255941
265743
275743
285743
295644
305545

Chance of precipitation in September

Any precipitation

Semender gets around 65 mm of rain over 9 wet days in September, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 30% and peaks near 31% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
128
228
328
429
529
629
730
830
931
1031
1131
1231
1331
1431
1531
1631
1731
1830
1930
2030
2130
2229
2329
2429
2528
2628
2728
2828
2928
3028

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 35% of days. Sticky, muggy-or-worse air turns up on roughly 17% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
161835319
271836308
381937297
492037286
5102138266
6112139255
7112239234
8122340223
9132340213
10142440202
11152540182
12162540171
13172640161
14182740151
15192839140
16192839130
17202938120
18222938110
19232937110
20243036100
2126303590
2227303490
2329313280
2430313170
2532323070
2633322860
2735322760
2837322650
2938322540
3040322440

Wind in September

Winds average 14 km/h in September.

Across September, 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.

05101520151015202530
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

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 hours at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 84 minutes over September. Sunrise moves from 5:19 AM to 5:52 AM, and sunset from 6:21 PM to 5:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:196:21
213.05:206:19
312.95:216:17
412.95:236:16
512.85:246:14
612.85:256:12
712.75:266:10
812.75:276:08
912.65:286:06
1012.65:296:05
1112.55:306:03
1212.55:326:01
1312.45:335:59
1412.45:345:57
1512.35:355:55
1612.35:365:53
1712.25:375:51
1812.25:385:50
1912.15:395:48
2012.15:415:46
2112.05:425:44
2212.05:435:42
2311.95:445:40
2411.95:455:38
2511.85:465:37
2611.85:475:35
2711.75:495:33
2811.75:505:31
2911.65:515:29
3011.65:525:27

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.92 kWh/m².

For context, solar energy here swings from a low near 1.36 kWh/m² to a high of 6.26 kWh/m² in July across the year — September's 3.92 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.6Bright
34.6Bright
44.5Bright
54.5Bright
64.4Bright
74.3Bright
84.3Bright
94.2Bright
104.2Bright
114.1Bright
124.1Bright
134.0Bright
144.0Moderate
153.9Moderate
163.9Moderate
173.8Moderate
183.8Moderate
193.8Moderate
203.7Moderate
213.7Moderate
223.6Moderate
233.6Moderate
243.5Moderate
253.5Moderate
263.5Moderate
273.4Moderate
283.4Moderate
293.4Moderate
303.3Moderate
Planning a trip in September

Is September a good time to visit Semender?

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

7.0
Sightseeing
4th-best month of the year
5.0
Beach & pool
4th-best month of the year

September is one of the better times to visit Semender for general sightseeing.

What to pack for Semender in September

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

In September, Semender sees daytime highs around 22°C and nights near 18°C. Worth packing: light clothes and rain gear. About 9 days see rain.

light clothesrain gear

Sea temperature near Semender in September

The nearest coast averages about 23°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 22 km away) is warmest in August at about 26°C and coldest in February near 5°C.

It's comfortable for a long swim from Jun 11 to Oct 2 — about 3.7 months when the water holds above 20°C.

0°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan6Bracing
Feb5Bracing
Mar5Bracing
Apr9Bracing
May15Cool
Jun21Refreshing
Jul25Warm
Aug26Warm
Sep23Refreshing
Oct18Cool
Nov13Bracing
Dec9Bracing

UV index in Semender in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Semender peaks around July 16 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highModerateLowJul 16UV 9Jan 10UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar3Moderate
Apr5Moderate
May7Very high
Jun8Very high
Jul9Very high
Aug8Very high
Sep5Moderate
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Semender 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 Semender is worst in March — around 16 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (December, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMar 2316 µg/m³Dec 197 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb10Good
Mar16Moderate
Apr16Moderate
May14Moderate
Jun12Moderate
Jul13Moderate
Aug14Moderate
Sep15Moderate
Oct12Good
Nov9Good
Dec7Good
Location & terrain

Where is Semender?

Semender sits at 43.0°N, 47.4°E, 3 m above sea level, in Russia. The nearest listed city is Makhachkala, 8.0 km away.

Topography around Semender

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

Within 3 km, the terrain around Semender has only modest variations in elevation — a maximum elevation change of 184 m around an average of 39 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 920 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,752 m.

The land around Semender is covered by artificial surfaces (53%) and grassland (35%) within 3 km, grassland (55%) within 16 km, and grassland (43%) and water (35%) within 80 km.

3 km
184 m
16 km
920 m
80 km
2,752 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Makhachkala 8.0 km · Kaspiysk 22 km · Buynaksk 29 km · Kizilyurt 50 km · Izberbash 60 km · Khasavyurt 73 km · Kurchaloy 110 km · Kizlyar 111 km

Russia travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 32% of US
price level, 2025
GDP per capita
$17,547
2025
Happiness
5.8 / 10
World Happiness, 2025
Safe drinking water
76%
of population, 2024
Homicide rate
6.8
per 100k, 2021
Road deaths
12
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 521
Religion
other Christian 2%

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 Semender (42.9856°, 47.4039°, elevation 3 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).