Trípoli weather in September

In September, Trípoli sees average daytime highs of 26°C and overnight lows near 15°C, with 30 mm of rain across 4.6 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 28°C in the first days to 24°C by the end. The sky is clear or mostly clear about 69% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 48 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Trípoli's 4th-clearest and 11th-windiest month. For the whole year in context, see Trípoli's year-round climate.

Daytime high
26°
4th warmest
Overnight low
15°
9th coldest
Rainfall
30 mm
4.6 wet days
Daylight
12 h 12 min
6:18 AM – 6:32 PM
Cloud cover
29%
4th clearest
Wind
6 km/h
11th windiest
Solar energy
5.17 kWh/m²
Travel score
7.9
out of 10

Trípoli is city in Peloponnese, Greece.

Density
18/km²
people per km²

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 28°C in the first days to 24°C by the end.

A typical September day in Trípoli reaches about 26°C in the afternoon and slips back to 15°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 31°C. Set against its neighbours, September runs about 4°C cooler than August and about 5°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12917
22917
32816
42816
52816
62816
72816
82816
92716
102715
112715
122715
132715
142715
152615
162615
172615
182614
192614
202614
212514
222514
232514
242514
252514
262513
272413
282413
292413
302413

How September really feels in Trípoli

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.

Trípoli weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan10° / 6710.12.39.72.3
Feb11° / 7010.3310.62.6
Mar14° / 689.81.211.74.1
Apr18° / 427.80.112.96.1
May23° / 11°366.90147.6
Jun28° / 15°204014.57.5
Jul30° / 18°112.4014.36.4
Aug30° / 18°102.4013.46.4
Sep26° / 15°304.6012.37.9
Oct21° / 11°436.40117.3
Nov16° / 6580.2105.1
Dec11° / 7210.829.52.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 69% 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 16%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1937
2928
3928
4919
5919
69010
78911
88911
98911
108812
118812
128713
138614
148614
158515
168416
178416
188317
198218
208119
218020
228020
237921
247921
257723
267723
277723
287624
297525
307426

Chance of precipitation in September

Any precipitation

Trípoli gets around 30 mm of rain over 4.6 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 15% and peaks near 18% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
111
211
312
412
513
613
713
813
913
1014
1114
1214
1314
1414
1515
1615
1715
1816
1916
2016
2117
2217
2317
2417
2517
2617
2717
2817
2918
3018

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 67% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
158384
258384
358384
459374
559374
660364
761354
861354
962344
1063334
1164324
1264324
1365314
1465314
1566304
1667303
1768293
1868293
1969283
2069283
2170273
2271263
2371263
2473252
2573252
2674242
2775232
2875232
2977221
3078211

Wind in September

Winds average 6 km/h in September.

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

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 48 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over September. Sunrise moves from 6:05 AM to 6:30 AM, and sunset from 6:56 PM to 6:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:056:56
212.86:066:54
312.86:076:53
412.76:076:51
512.76:086:49
612.66:096:48
712.66:106:46
812.66:116:45
912.56:126:43
1012.56:136:42
1112.46:136:40
1212.46:146:38
1312.46:156:37
1412.36:166:35
1512.36:176:34
1612.26:186:32
1712.26:196:30
1812.26:196:29
1912.16:206:27
2012.16:216:25
2112.06:226:24
2212.06:236:22
2311.96:246:21
2411.96:256:19
2511.96:266:17
2611.86:266:16
2711.86:276:14
2811.76:286:13
2911.76:296:11
3011.76:306:10

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.17 kWh/m².

For context, solar energy here swings from a low near 1.88 kWh/m² to a high of 7.36 kWh/m² in June across the year — September's 5.17 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.0Bright
25.9Bright
35.9Bright
45.8Bright
55.8Bright
65.7Bright
75.7Bright
85.6Bright
95.5Bright
105.5Bright
115.4Bright
125.4Bright
135.3Bright
145.3Bright
155.2Bright
165.2Bright
175.1Bright
185.0Bright
195.0Bright
204.9Bright
214.9Bright
224.8Bright
234.8Bright
244.7Bright
254.7Bright
264.6Bright
274.5Bright
284.5Bright
294.5Bright
304.4Bright
Planning a trip in September

Is September a good time to visit Trípoli?

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

7.9
Sightseeing
1st-best month of the year
7.8
Beach & pool
4th-best month of the year

September is one of the better times to visit Trípoli for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Trípoli in September

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

In September, Trípoli sees daytime highs around 26°C and nights near 15°C. Worth packing: light clothes and sun protection. About 5 days see rain.

light clothessun protection

Sea temperature near Trípoli in September

The nearest coast averages about 25°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 46 km away) is warmest in August at about 26°C and coldest in February near 15°C.

It's comfortable for a long swim from May 24 to Nov 21 — about 6 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Cool
Mar15Cool
Apr16Cool
May19Cool
Jun23Refreshing
Jul26Warm
Aug26Warm
Sep25Warm
Oct23Refreshing
Nov21Refreshing
Dec18Cool

UV index in Trípoli in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Trípoli peaks around June 22 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 22UV 10Jan 1UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5High
Apr8Very high
May7High
Jun10Very high
Jul10Very high
Aug10Very high
Sep7Very high
Oct5High
Nov3Moderate
Dec2Low

Air quality in Trípoli 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 Trípoli is worst in April — around 17 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (December, 10 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateGoodApr 1416 µg/m³Dec 1310 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb14Moderate
Mar16Moderate
Apr17Moderate
May15Moderate
Jun12Moderate
Jul12Good
Aug14Moderate
Sep10Good
Oct11Good
Nov11Good
Dec10Good
Location & terrain

Where is Trípoli?

Trípoli sits at 37.5°N, 22.4°E, 660 m above sea level, in Greece. The nearest listed city is Árgos, 34 km away.

SpartaKalamataArchaia OlympiaKórinthosPýrgosAígio

Topography around Trípoli

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

Within 3 km, the terrain around Trípoli has significant variations in elevation — a maximum elevation change of 353 m around an average of 688 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,548 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,374 m.

The land around Trípoli is covered by grassland (43%) and trees (25%) within 3 km, trees (46%) and grassland (32%) within 16 km, and trees (55%) within 80 km.

3 km
353 m
16 km
1,548 m
80 km
2,374 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Árgos 34 km · Nafplio 38 km · Sparta 49 km · Kalamata 57 km · Archaia Olympia 68 km · Kórinthos 69 km · Pýrgos 85 km · Aígio 86 km

Greece travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 60% of US
price level, 2025
GDP per capita
$26,948
2025
Happiness
5.7 / 10
World Happiness, 2025
Safe drinking water
97%
of population, 2024
Homicide rate
0.8
per 100k, 2023
Road deaths
8.3
per 100k/yr, 2019
Income group
High
World Bank
English
High
EF EPI 592
Religion
other 3%Muslim 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 Trípoli (37.5096°, 22.3788°, elevation 660 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).