Terme weather in September

In September, Terme sees average daytime highs of 24°C and overnight lows near 18°C, with 66 mm of rain across 9.9 wet days and about 12.3 hours of daylight. It is the 3rd-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 25°C in the first days to 22°C by the end. The sky is clear or mostly clear about 46% 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 Terme's 4th-clearest and 9th-windiest month. For the whole year in context, see Terme's year-round climate.

Daytime high
24°
3rd warmest
Overnight low
18°
10th coldest
Rainfall
66 mm
9.9 wet days
Daylight
12 h 18 min
5:18 AM – 5:35 PM
Cloud cover
44%
4th clearest
Wind
10 km/h
9th windiest
Solar energy
4.08 kWh/m²
Travel score
7.1
out of 10

Terme is town headquarters of Terme District, Samsun Province, Turkey.

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 25°C in the first days to 22°C by the end.

A typical September day in Terme reaches about 24°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 20°C and 26°C. Set against its neighbours, September runs about 3°C cooler than August and about 4°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12520
22520
32520
42520
52519
62519
72519
82419
92419
102419
112419
122419
132418
142418
152418
162418
172318
182318
192318
202318
212318
222318
232317
242317
252317
262217
272217
282217
292217
302217

Terme weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 8713.43.69.41.7
Feb / 6911.53.910.31.8
Mar11° / 8413.31.511.72.5
Apr14° / 599.80.313.14.2
May19° / 14°478.9014.36.3
Jun23° / 18°468.2014.97.4
Jul26° / 21°468.4014.77.4
Aug26° / 21°489.1013.67.2
Sep24° / 18°669.9012.37.1
Oct20° / 15°8611.2010.96.2
Nov15° / 10°8410.109.74.6
Dec11° / 9012.41.69.12.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 22% of September, with mostly cloudy or overcast conditions the remaining 32%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17525
27426
37426
47228
57228
67228
77228
87327
97228
107228
117228
127129
137129
147129
157030
166931
176832
186832
196733
206733
216634
226634
236436
246436
256238
266238
276238
286238
296238
306238

Chance of precipitation in September

Any precipitation

Terme gets around 66 mm of rain over 9.9 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 33% and peaks near 35% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
133
233
334
434
535
635
735
835
934
1034
1133
1233
1332
1432
1531
1631
1730
1830
1930
2030
2130
2231
2331
2432
2533
2633
2733
2833
2933
3033

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 36% of days. Sticky, muggy-or-worse air turns up on roughly 34% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1111314610
221232459
321333448
421434437
521634416
621735406
731836395
831937374
932038364
1032038353
1132139343
1242239332
1342339322
1442439312
1552439302
1652539292
1762538292
1872538282
1972637282
2082637272
2192736262
22102736262
23112735251
24122835241
25132835231
26152735221
27162735211
28172736201
29182736181
30192736171

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

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 5:03 AM to 5:33 AM, and sunset from 6:01 PM to 5:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:036:01
212.95:045:59
312.95:055:57
412.85:065:56
512.85:075:54
612.75:085:52
712.75:095:50
812.65:105:49
912.65:115:47
1012.65:125:45
1112.55:135:43
1212.55:145:42
1312.45:155:40
1412.45:165:38
1512.35:175:36
1612.35:185:35
1712.25:195:33
1812.25:205:31
1912.15:215:29
2012.15:225:27
2112.05:245:26
2212.05:255:24
2311.95:265:22
2411.95:275:20
2511.85:285:19
2611.85:295:17
2711.85:305:15
2811.75:315:13
2911.75:325:12
3011.65:335:10

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.08 kWh/m².

For context, solar energy here swings from a low near 1.51 kWh/m² to a high of 6.3 kWh/m² in June across the year — September's 4.08 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.6Bright
44.6Bright
54.5Bright
64.5Bright
74.4Bright
84.4Bright
94.3Bright
104.3Bright
114.3Bright
124.2Bright
134.2Bright
144.2Bright
154.1Bright
164.1Bright
174.0Bright
184.0Moderate
194.0Moderate
203.9Moderate
213.9Moderate
223.8Moderate
233.8Moderate
243.8Moderate
253.7Moderate
263.7Moderate
273.6Moderate
283.6Moderate
293.6Moderate
303.5Moderate
Planning a trip in September

Is September a good time to visit Terme?

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

7.1
Sightseeing
4th-best month of the year
5.8
Beach & pool
4th-best month of the year

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

What to pack for Terme in September

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

In September, Terme sees daytime highs around 24°C and nights near 18°C. Worth packing: light clothes and rain gear. About 10 days see rain.

light clothesrain gear

Sea temperature near Terme 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 16 km away) is warmest in August at about 25°C and coldest in February near 8°C.

It's comfortable for a long swim from Jun 13 to Oct 13 — about 4 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan10Bracing
Feb8Bracing
Mar8Bracing
Apr10Bracing
May15Cool
Jun21Refreshing
Jul24Warm
Aug25Warm
Sep23Refreshing
Oct20Cool
Nov16Cool
Dec12Bracing

UV index in Terme 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 Terme peaks around August 10 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowAug 10UV 8Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar3Moderate
Apr6High
May7High
Jun8Very high
Jul8Very high
Aug8Very high
Sep7High
Oct4Moderate
Nov2Low
Dec2Low

Air quality in Terme 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 Terme is worst in March — around 16 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (September, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMar 2016 µg/m³Sep 139 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar16Moderate
Apr15Moderate
May13Moderate
Jun10Good
Jul9Good
Aug10Good
Sep9Good
Oct10Good
Nov11Good
Dec10Good
Location & terrain

Where is Terme?

Terme sits at 41.2°N, 37.0°E, 11 m above sea level, in Turkey. The nearest listed city is Çarşamba, 21 km away.

Topography around Terme

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

Within 3 km, the terrain around Terme has only modest variations in elevation — a maximum elevation change of 16 m around an average of 4 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 670 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,811 m.

The land around Terme is covered by trees (32%), cropland (28%) and grassland (20%) within 3 km, trees (45%) and water (32%) within 16 km, and trees (46%) and water (36%) within 80 km.

3 km
16 m
16 km
670 m
80 km
1,811 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Çarşamba 21 km · Ünye 27 km · Tekkeköy 43 km · Kumru 44 km · Fatsa 48 km · Korgan 53 km · Samsun 54 km · Niksar 69 km

Turkey travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 41% of US
price level, 2025
GDP per capita
$18,599
2025
Happiness
5.3 / 10
World Happiness, 2025
Homicide rate
3.2
per 100k, 2023
Road deaths
6.7
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 488
Religion
Muslim 100%other 0%

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 Terme (41.2092°, 36.9739°, elevation 11 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).