Hopa weather in September

In September, Hopa sees average daytime highs of 21°C and overnight lows near 18°C, with 282 mm of rain across 16.1 wet days and about 12.3 hours of daylight. It is the 3rd-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 22°C in the first days to 20°C by the end. The sky is clear or mostly clear about 39% 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 Hopa's 1st-clearest and 8th-windiest month. For the whole year in context, see Hopa's year-round climate.

Daytime high
21°
3rd warmest
Overnight low
18°
10th coldest
Rainfall
282 mm
16.1 wet days
Daylight
12 h 18 min
5:00 AM – 5:17 PM
Cloud cover
51%
1st clearest
Wind
9 km/h
8th windiest
Solar energy
4.02 kWh/m²
Travel score
5.8
out of 10

Hopa is district and town in Artvin Province, Turkey.

Air quality
Elevated
PM2.5 16.4 µg/m³ · 2018

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 22°C in the first days to 20°C by the end.

A typical September day in Hopa reaches about 21°C in the afternoon and slips back to 18°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 25°C. Set against its neighbours, September runs about 2°C cooler than August and about 3°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12320
22219
32219
42219
52219
62219
72219
82219
92219
102219
112218
122218
132218
142218
152118
162118
172118
182118
192118
202118
212118
222117
232117
242117
252117
262117
272017
282017
292017
302017

How September really feels in Hopa

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.

Hopa weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 20515.38.19.40.9
Feb / 16213.87.510.31.0
Mar / 15814.95.311.71.7
Apr13° / 103130.713.13.4
May17° / 13°11212.2014.35.3
Jun21° / 17°16614.1014.95.9
Jul23° / 20°21117.4014.75.7
Aug23° / 21°24419.7013.75.5
Sep21° / 18°28216.1012.35.8
Oct18° / 15°28914.80.110.95.4
Nov14° / 10°23213.329.73.7
Dec10° / 21614.85.59.11.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 21% of September, with mostly cloudy or overcast conditions the remaining 40%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16040
26040
36040
46040
56040
66139
76139
86139
96139
106238
116238
126238
136238
146238
156238
166139
176139
186139
196040
206040
215941
225842
235842
245842
255743
265743
275743
285644
295743
305743

Chance of precipitation in September

Any precipitation

Hopa gets around 282 mm of rain over 16.1 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 53% and peaks near 59% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
159
259
359
458
558
658
758
858
957
1057
1156
1255
1355
1454
1553
1653
1752
1851
1951
2051
2150
2250
2350
2450
2549
2649
2749
2848
2948
3047

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 35% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
128304416
239314315
3310314214
4311324013
5412333912
6413343811
7414353710
841536368
941637357
1051738356
1151739346
1251839335
1351940324
1452040323
1552040313
1662140312
1762140302
1872239302
1982339291
2082438281
2192538271
22102637261
23112737251
24122836231
25142936220
26152935200
27163035190
28173135170
29183235150
30193335140

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

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 4:45 AM to 5:15 AM, and sunset from 5:43 PM to 4:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.04:455:43
212.94:465:41
312.94:475:40
412.84:485:38
512.84:495:36
612.74:505:35
712.74:515:33
812.64:525:31
912.64:535:29
1012.64:545:28
1112.54:555:26
1212.54:565:24
1312.44:575:22
1412.44:585:20
1512.34:595:19
1612.35:005:17
1712.25:025:15
1812.25:035:13
1912.15:045:11
2012.15:055:10
2112.05:065:08
2212.05:075:06
2311.95:085:04
2411.95:095:03
2511.85:105:01
2611.85:114:59
2711.85:124:57
2811.75:134:55
2911.75:144:54
3011.65:154:52

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.02 kWh/m².

For context, solar energy here swings from a low near 1.57 kWh/m² to a high of 5.89 kWh/m² in June across the year — September's 4.02 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.4Bright
34.4Bright
44.4Bright
54.3Bright
64.3Bright
74.3Bright
84.3Bright
94.2Bright
104.2Bright
114.2Bright
124.2Bright
134.1Bright
144.1Bright
154.1Bright
164.0Bright
174.0Bright
184.0Moderate
194.0Moderate
203.9Moderate
213.9Moderate
223.8Moderate
233.8Moderate
243.8Moderate
253.7Moderate
263.7Moderate
273.7Moderate
283.6Moderate
293.6Moderate
303.6Moderate
Planning a trip in September

Is September a good time to visit Hopa?

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

5.8
Sightseeing
2nd-best month of the year
3.7
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Hopa for sightseeing.

What to pack for Hopa in September

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

In September, Hopa sees daytime highs around 21°C and nights near 18°C. Pack rain gear. About 16 days see rain.

rain gear

Sea temperature near Hopa 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 offshore is warmest in August at about 26°C and coldest in February near 9°C.

It's comfortable for a long swim from Jun 5 to Oct 21 — about 4.6 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan10Bracing
Feb9Bracing
Mar9Bracing
Apr11Bracing
May17Cool
Jun22Refreshing
Jul25Warm
Aug26Warm
Sep25Warm
Oct21Refreshing
Nov17Cool
Dec13Bracing

UV index in Hopa 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 Hopa peaks around June 19 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highModerateJun 19UV 10Dec 19UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar3Moderate
Apr7High
May8Very high
Jun10Very high
Jul9Very high
Aug9Very high
Sep7Very high
Oct4Moderate
Nov2Moderate
Dec2Low

Air quality in Hopa 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 Hopa is worst in March — around 23 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (July, 12 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Hopa's WHO annual average of 16.4 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2423 µg/m³Jul 2112 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb18Moderate
Mar23Moderate
Apr23Moderate
May21Moderate
Jun16Moderate
Jul12Good
Aug13Moderate
Sep13Moderate
Oct14Moderate
Nov14Moderate
Dec15Moderate
Location & terrain

Where is Hopa?

Hopa sits at 41.4°N, 41.4°E, 13 m above sea level, in Turkey. The nearest listed city is Arhavi, 11 km away.

Topography around Hopa

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

Within 3 km, the terrain around Hopa has large variations in elevation — a maximum elevation change of 620 m around an average of 96 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,886 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,872 m.

The land around Hopa is covered by trees (55%) and water (38%) within 3 km, trees (58%) and water (41%) within 16 km, and trees (47%), water (29%) and grassland (22%) within 80 km.

3 km
620 m
16 km
1,886 m
80 km
3,872 m
treesgrasslandartificial surfacesbare terrainwater
September weather nearby: Arhavi 11 km · Batumi 33 km · Artvin 41 km · Ardeşen 43 km · Kobuleti 58 km · Çayeli 67 km · Rize 86 km · Poti 86 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 Hopa (41.3905°, 41.4197°, elevation 13 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).