Trakai weather in September

In September, Trakai sees average daytime highs of 17°C and overnight lows near 9°C, with 52 mm of rain across 9.8 wet days and about 12.5 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 19°C in the first days to 14°C by the end. The sky is clear or mostly clear about 20% 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 Trakai's 6th-clearest and 7th-windiest month. For the whole year in context, see Trakai's year-round climate.

Daytime high
17°
5th warmest
Overnight low
9th coldest
Rainfall
52 mm
9.8 wet days
Daylight
12 h 24 min
6:02 AM – 6:28 PM
Cloud cover
67%
6th clearest
Wind
13 km/h
7th windiest
Solar energy
2.73 kWh/m²
Travel score
5.2
out of 10

Trakai is city in Lithuania.

Density
11/km²
people per km²
Founded
1409

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 19°C in the first days to 14°C by the end.

A typical September day in Trakai reaches about 17°C in the afternoon and slips back to 9°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 22°C. Set against its neighbours, September runs about 5°C cooler than August and about 7°C warmer than October.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
12011
22011
31910
41910
51910
61910
71910
81810
91810
101810
11189
12189
13179
14179
15179
16179
17178
18168
19168
20168
21168
22168
23157
24157
25157
26157
27157
28147
29147
30147

How September really feels in Trakai

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.

Trakai weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-2° / -6°4510.78.47.60.0
Feb-1° / -6°4010.88.29.30.0
Mar / -3°4210.65.911.50.2
Apr12° / 469.91.713.73.1
May18° / 6712.50.115.85.3
Jun21° / 11°7513016.95.8
Jul23° / 13°9013.7016.56.2
Aug22° / 13°8212014.76.3
Sep17° / 529.8012.55.2
Oct10° / 5711.20.610.22.2
Nov / 45113.88.20.2
Dec-0° / -4°4611.17.57.10.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 66%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13565
23565
33565
43565
53565
63565
73565
83565
93565
103565
113565
123565
133565
143565
153565
163664
173664
183664
193664
203565
213565
223565
233367
243367
253367
263367
273169
283169
293070
303070

Chance of precipitation in September

Any precipitation

Trakai gets around 52 mm of rain over 9.8 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 33% and peaks near 40% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
140
239
338
438
537
636
736
835
934
1034
1133
1232
1332
1432
1531
1631
1731
1830
1930
2030
2130
2230
2331
2431
2531
2632
2732
2833
2933
3034

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 87% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
173252
275232
375232
476222
577212
678202
779192
880182
980182
1081172
1182162
1283152
1384142
1485132
1586122
1688111
1789101
189091
199181
209361
219451
229451
239541
249730
259730
269820
279820
289820
299820
309820

Wind in September

Winds average 13 km/h in September.

Across September, daily wind ranges from about 12 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light 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 5:33 AM to 6:28 AM, and sunset from 7:07 PM to 5:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.65:337:07
213.55:357:04
313.45:377:02
413.35:396:59
513.35:416:57
613.25:436:54
713.15:446:51
813.05:466:49
913.05:486:46
1012.95:506:43
1112.85:526:41
1212.75:546:38
1312.75:566:36
1412.65:586:33
1512.56:006:30
1612.46:026:28
1712.46:036:25
1812.36:056:22
1912.26:076:20
2012.16:096:17
2112.16:116:14
2212.06:136:12
2311.96:156:09
2411.86:176:07
2511.86:196:04
2611.76:216:01
2711.66:235:59
2811.56:245:56
2911.56:265:53
3011.46:285:51

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 2.73 kWh/m².

For context, solar energy here swings from a low near 0.37 kWh/m² to a high of 5.42 kWh/m² in June across the year — September's 2.73 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.4Moderate
23.4Moderate
33.3Moderate
43.3Moderate
53.2Moderate
63.2Moderate
73.1Moderate
83.1Moderate
93.0Moderate
103.0Moderate
112.9Moderate
122.9Moderate
132.9Moderate
142.8Moderate
152.8Moderate
162.7Moderate
172.7Moderate
182.6Moderate
192.6Moderate
202.5Moderate
212.5Moderate
222.4Moderate
232.4Moderate
242.3Moderate
252.3Moderate
262.2Moderate
272.2Moderate
282.1Moderate
292.1Moderate
302.0Moderate
Planning a trip in September

Is September a good time to visit Trakai?

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

5.2
Sightseeing
5th-best month of the year
1.3
Beach & pool
5th-best month of the year

September is a reasonable time to visit Trakai for sightseeing.

What to pack for Trakai in September

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

In September, Trakai sees daytime highs around 17°C and nights near 9°C. Worth packing: a warm layer and rain gear. About 10 days see rain.

a warm layerrain gear

UV index in Trakai in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Trakai peaks around June 22 at about 6 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 18 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 22UV 6Dec 18UV 0
UV index (midday)Level
Jan1Low
Feb1Low
Mar2Moderate
Apr4Moderate
May5Moderate
Jun6High
Jul6High
Aug5High
Sep3Moderate
Oct2Low
Nov1Low
Dec0Low

Air quality in Trakai 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 Trakai is worst in July — around 15 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (December, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1315 µg/m³Dec 198 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb10Good
Mar14Moderate
Apr14Moderate
May14Moderate
Jun15Moderate
Jul15Moderate
Aug15Moderate
Sep13Moderate
Oct10Good
Nov8Good
Dec8Good
Location & terrain

Where is Trakai?

Trakai sits at 54.6°N, 24.9°E, 0 m above sea level, in Lithuania. The nearest listed city is Pilaitė, 17 km away.

PašilaičiaiŠeškinėNaujamiestis

Topography around Trakai

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

Within 3 km, the terrain around Trakai has only modest variations in elevation — a maximum elevation change of 58 m around an average of 160 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 175 m; within 80 km, significant variations in elevation — a maximum elevation change of 305 m.

The land around Trakai is covered by trees (50%) within 3 km, trees (56%) and grassland (21%) within 16 km, and trees (51%) and cropland (28%) within 80 km.

3 km
58 m
16 km
175 m
80 km
305 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Pilaitė 17 km · Lazdynai 18 km · Karoliniškės 19 km · Justiniškės 20 km · Vilkpėdė 20 km · Pašilaičiai 21 km · Šeškinė 22 km · Naujamiestis 22 km

Lithuania travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 58% of US
price level, 2025
GDP per capita
$32,959
2025
Happiness
6.7 / 10
World Happiness, 2025
Safe drinking water
97%
of population, 2024
Homicide rate
2.6
per 100k, 2023
Road deaths
8.1
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 543
Religion
Roman Catholic 74%none 6%Russian Orthodox 4%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 Trakai (54.6378°, 24.9343°, elevation 0 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).