Svetlyy weather in September

In September, Svetlyy sees average daytime highs of 18°C and overnight lows near 10°C, with 58 mm of rain across 10.4 wet days and about 12.5 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 20°C in the first days to 16°C by the end. The sky is clear or mostly clear about 21% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 36 min at the start of September to 11 h 24 min by month's end. Set against the rest of the year, September is Svetlyy's 6th-clearest and 7th-windiest month. For the whole year in context, see Svetlyy's year-round climate.

Daytime high
18°
4th warmest
Overnight low
10°
9th coldest
Rainfall
58 mm
10.4 wet days
Daylight
12 h 24 min
6:21 AM – 6:47 PM
Cloud cover
64%
6th clearest
Wind
14 km/h
7th windiest
Solar energy
2.94 kWh/m²
Travel score
5.5
out of 10

Svetlyy is town in Kaliningrad Oblast, Russia.

Density
851/km²
people per km²
Founded
1640

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 20°C in the first days to 16°C by the end.

A typical September day in Svetlyy reaches about 18°C in the afternoon and slips back to 10°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 23°C. Set against its neighbours, September runs about 5°C cooler than August and about 6°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12012
22012
32012
42012
52012
61912
71912
81911
91911
101911
111911
121811
131811
141811
151811
161810
171810
181710
191710
201710
211710
221710
23179
24169
25169
26169
27169
28169
29159
30159

How September really feels in Svetlyy

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.

Svetlyy weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -3°4911.15.47.60.0
Feb / -3°4110.35.39.30.0
Mar / -0°4310.23.211.50.4
Apr12° / 409.90.913.73.2
May17° / 5210.5015.85.5
Jun20° / 12°6611.8016.96.0
Jul23° / 14°8312.8016.56.4
Aug22° / 14°7412.6014.76.4
Sep18° / 10°5810.4012.55.5
Oct12° / 6111.80.110.22.9
Nov / 5211.31.88.20.6
Dec / -1°5111.84.87.10.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 21% of September, with mostly cloudy or overcast conditions the remaining 59%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14654
24654
34654
44555
54555
64357
74357
84357
94357
104258
114258
124159
134060
143961
154060
164060
174060
184060
194060
204060
214060
224060
234060
244060
254060
264060
274060
283961
293961
303961

Chance of precipitation in September

Any precipitation

Svetlyy gets around 58 mm of rain over 10.4 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 36% and peaks near 41% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
141
241
341
440
540
639
739
839
938
1038
1137
1236
1336
1435
1534
1633
1733
1832
1932
2031
2131
2231
2331
2432
2532
2633
2734
2835
2935
3036

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 79% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
159356
261345
362335
463325
565314
666304
767294
869274
970264
1073243
1174233
1276213
1377203
1478193
1581172
1682162
1783152
1886131
1987121
2088111
2188111
2289101
239190
249190
259190
269280
279280
289280
299370
309370

Wind in September

Winds average 14 km/h in September.

Across September, daily wind ranges from about 13 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
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light 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
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 36 min at the start of September to 11 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 132 minutes over September. Sunrise moves from 5:52 AM to 6:48 AM, and sunset from 7:26 PM to 6:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.65:527:26
213.55:547:24
313.45:567:21
413.35:587:18
513.36:007:16
613.26:027:13
713.16:047:11
813.06:067:08
913.06:077:05
1012.96:097:03
1112.86:117:00
1212.76:136:57
1312.76:156:55
1412.66:176:52
1512.56:196:50
1612.46:216:47
1712.46:236:44
1812.36:256:42
1912.26:266:39
2012.16:286:36
2112.16:306:34
2212.06:326:31
2311.96:346:28
2411.86:366:26
2511.86:386:23
2611.76:406:20
2711.66:426:18
2811.56:446:15
2911.56:466:13
3011.46:486:10

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 2.94 kWh/m².

For context, solar energy here swings from a low near 0.41 kWh/m² to a high of 5.77 kWh/m² in June across the year — September's 2.94 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.6Moderate
23.6Moderate
33.5Moderate
43.5Moderate
53.4Moderate
63.4Moderate
73.3Moderate
83.2Moderate
93.2Moderate
103.1Moderate
113.1Moderate
123.1Moderate
133.0Moderate
143.0Moderate
152.9Moderate
162.9Moderate
172.9Moderate
182.8Moderate
192.8Moderate
202.8Moderate
212.7Moderate
222.7Moderate
232.6Moderate
242.6Moderate
252.5Moderate
262.5Moderate
272.5Moderate
282.4Moderate
292.4Moderate
302.3Moderate
Planning a trip in September

Is September a good time to visit Svetlyy?

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

5.5
Sightseeing
4th-best month of the year
1.8
Beach & pool
4th-best month of the year

September is a reasonable time to visit Svetlyy for sightseeing.

What to pack for Svetlyy in September

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

In September, Svetlyy sees daytime highs around 18°C and nights near 10°C. Worth packing: rain gear. About 10 days see rain.

rain gear

Sea temperature near Svetlyy in September

The nearest coast averages about 17°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 18 km away) is warmest in August at about 19°C and coldest in February near 3°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

0°5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan4Bracing
Feb3Bracing
Mar3Bracing
Apr5Bracing
May9Bracing
Jun14Bracing
Jul18Cool
Aug19Cool
Sep17Cool
Oct13Bracing
Nov9Bracing
Dec6Bracing

UV index in Svetlyy in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Svetlyy peaks around June 23 at about 6 (high) — a little sun protection helps at midday. It bottoms out near December 21 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 23UV 6Dec 21UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Moderate
Apr4Moderate
May5Moderate
Jun6High
Jul6High
Aug5High
Sep4Moderate
Oct2Low
Nov1Low
Dec0Low
Location & terrain

Where is Svetlyy?

Svetlyy sits at 54.7°N, 20.1°E, 3 m above sea level, in Russia. The nearest listed city is Baltiysk, 15 km away.

Topography around Svetlyy

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

Within 3 km, the terrain around Svetlyy has only modest variations in elevation — a maximum elevation change of 32 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 111 m; within 80 km, only modest variations in elevation — a maximum elevation change of 222 m.

The land around Svetlyy is covered by trees (43%) and water (38%) within 3 km, water (40%) and trees (32%) within 16 km, and water (41%) and trees (22%) within 80 km.

3 km
32 m
16 km
111 m
80 km
222 m
treesgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Baltiysk 15 km · Kaliningrad 24 km · Zelenogradsk 38 km · Braniewo 39 km · Bartoszyce 64 km · Lidzbark Warmiński 68 km · Elbląg 75 km · Malbork 101 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 Svetlyy (54.675°, 20.1347°, 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).