Nallıhan weather in September

In September, Nallıhan sees average daytime highs of 25°C and overnight lows near 12°C, with 17 mm of rain across 4.1 wet days and about 12.3 hours of daylight. It is the 3rd-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 27°C in the first days to 23°C by the end. The sky is clear or mostly clear about 67% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 54 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Nallıhan's 3rd-clearest and 8th-windiest month. For the whole year in context, see Nallıhan's year-round climate.

Daytime high: 25°; 3rd warmest
Overnight low: 12°; 9th coldest
Rainfall: 17 mm; 4.1 wet days
Daylight: 12 h 18 min; 5:41 AM – 5:57 PM
Cloud cover: 29%; 3rd clearest
Wind: 7 km/h; 8th windiest
Solar energy: 5.1 kWh/m²
Travel score: 8.2; out of 10

Nallıhan is rural town and district of Ankara Province in the Central Anatolia region of Turkey.

Density: 10/km²; people per km²

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

← August Nallıhan year-round climate October →Best places to visit in September

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 27°C in the first days to 23°C by the end.

A typical September day in Nallıhan reaches about 25°C in the afternoon and slips back to 12°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 31°C. Set against its neighbours, September runs about 4°C cooler than August and about 6°C warmer than October.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°C)	28	28	27	27	27	27	27	27	26	26	26	26	26	26	26	25	25	25	25	25	24	24	24	24	24	23	23	23	23	23
Avg low (°C)	14	13	13	13	13	13	13	12	12	12	12	12	12	12	12	12	12	11	11	11	11	11	11	11	11	10	10	10	10	10

	Avg high (°C)	Avg low (°C)
1	28	14
2	28	13
3	27	13
4	27	13
5	27	13
6	27	13
7	27	13
8	27	12
9	26	12
10	26	12
11	26	12
12	26	12
13	26	12
14	26	12
15	26	12
16	25	12
17	25	12
18	25	11
19	25	11
20	25	11
21	24	11
22	24	11
23	24	11
24	24	11
25	24	11
26	23	10
27	23	10
28	23	10
29	23	10
30	23	10

How September really feels in Nallıhan

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

heat index over the day's high

Days feeling ≤ 0°C

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.

Nallıhan weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 10th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	4° / -2°	53	9.7	6.9	9.5	0.0
Feb	6° / -2°	51	9.6	5.6	10.4	0.6
Mar	11° / 1°	59	11	4.4	11.7	2.5
Apr	16° / 5°	55	11.1	1	13	4.9
May	21° / 9°	52	11.2	0	14.2	6.5
Jun	25° / 12°	40	9.5	0	14.8	7.2
Jul	29° / 15°	14	3.6	0	14.6	7.0
Aug	29° / 15°	17	4.8	0	13.6	6.6
Sep	25° / 12°	17	4.1	0	12.3	8.2
Oct	19° / 8°	36	6.3	0.1	10.9	6.8
Nov	11° / 2°	41	7.2	1.6	9.8	3.2
Dec	6° / -1°	57	9.8	4.4	9.2	0.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 67% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 15%. Skies tend to cloud over as the month goes on.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	92	92	92	92	92	91	91	90	90	90	89	88	88	88	86	86	84	84	82	82	81	80	79	79	78	77	77	77	77	77
Cloudier (%)	8	8	8	8	8	9	9	10	10	10	11	12	12	12	14	14	16	16	18	18	19	20	21	21	22	23	23	23	23	23

	Clearer (%)	Cloudier (%)
1	92	8
2	92	8
3	92	8
4	92	8
5	92	8
6	91	9
7	91	9
8	90	10
9	90	10
10	90	10
11	89	11
12	88	12
13	88	12
14	88	12
15	86	14
16	86	14
17	84	16
18	84	16
19	82	18
20	82	18
21	81	19
22	80	20
23	79	21
24	79	21
25	78	22
26	77	23
27	77	23
28	77	23
29	77	23
30	77	23

Chance of precipitation in September

Any precipitation

Nallıhan gets around 17 mm of rain over 4.1 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 14% and peaks near 15% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	15	14	14	14	14	13	13	13	13	13	12	13	13	13	13	13	13	13	14	14	14	14	14	15	15	15	15	15	15	15

	Rain chance (%)
1	15
2	14
3	14
4	14
5	14
6	13
7	13
8	13
9	13
10	13
11	12
12	13
13	13
14	13
15	13
16	13
17	13
18	13
19	14
20	14
21	14
22	14
23	14
24	15
25	15
26	15
27	15
28	15
29	15
30	15

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 88% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Dry (%)	71	73	75	77	79	81	82	83	84	85	86	87	88	89	89	90	90	90	91	91	92	93	93	94	95	96	96	97	97	98
Comfortable (%)	27	25	23	21	20	18	17	16	15	14	13	12	12	11	11	10	10	10	9	9	8	7	7	6	5	4	4	3	3	2
Humid (%)	2	2	2	2	1	1	1	1	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

	Dry (%)	Comfortable (%)	Humid (%)
1	71	27	2
2	73	25	2
3	75	23	2
4	77	21	2
5	79	20	1
6	81	18	1
7	82	17	1
8	83	16	1
9	84	15	1
10	85	14	1
11	86	13	1
12	87	12	1
13	88	12	0
14	89	11	0
15	89	11	0
16	90	10	0
17	90	10	0
18	90	10	0
19	91	9	0
20	91	9	0
21	92	8	0
22	93	7	0
23	93	7	0
24	94	6	0
25	95	5	0
26	96	4	0
27	96	4	0
28	97	3	0
29	97	3	0
30	98	2	0

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (km/h)	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	6	6	6	6	6	6	6	6
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	7	calm
2	7	calm
3	7	calm
4	7	calm
5	7	calm
6	7	calm
7	7	calm
8	7	calm
9	7	calm
10	7	calm
11	7	calm
12	7	calm
13	7	calm
14	7	calm
15	7	calm
16	7	calm
17	7	calm
18	7	calm
19	7	calm
20	7	calm
21	7	calm
22	7	calm
23	6	calm
24	6	calm
25	6	calm
26	6	calm
27	6	calm
28	6	calm
29	6	calm
30	6	calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 54 min 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 78 minutes over September. Sunrise moves from 5:26 AM to 5:55 AM, and sunset from 6:22 PM to 5:33 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	12.9	12.9	12.8	12.8	12.8	12.7	12.7	12.6	12.6	12.5	12.5	12.4	12.4	12.4	12.3	12.3	12.2	12.2	12.1	12.1	12.0	12.0	11.9	11.9	11.9	11.8	11.8	11.7	11.7	11.6
Sunrise (AM)	5:26	5:27	5:28	5:29	5:30	5:31	5:32	5:33	5:34	5:35	5:36	5:37	5:38	5:39	5:40	5:41	5:42	5:43	5:44	5:45	5:46	5:47	5:48	5:49	5:50	5:51	5:52	5:53	5:54	5:55
Sunset (PM)	6:22	6:21	6:19	6:17	6:16	6:14	6:12	6:11	6:09	6:07	6:05	6:04	6:02	6:00	5:58	5:57	5:55	5:53	5:52	5:50	5:48	5:46	5:45	5:43	5:41	5:39	5:38	5:36	5:34	5:33

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.9	5:26	6:22
2	12.9	5:27	6:21
3	12.8	5:28	6:19
4	12.8	5:29	6:17
5	12.8	5:30	6:16
6	12.7	5:31	6:14
7	12.7	5:32	6:12
8	12.6	5:33	6:11
9	12.6	5:34	6:09
10	12.5	5:35	6:07
11	12.5	5:36	6:05
12	12.4	5:37	6:04
13	12.4	5:38	6:02
14	12.4	5:39	6:00
15	12.3	5:40	5:58
16	12.3	5:41	5:57
17	12.2	5:42	5:55
18	12.2	5:43	5:53
19	12.1	5:44	5:52
20	12.1	5:45	5:50
21	12.0	5:46	5:48
22	12.0	5:47	5:46
23	11.9	5:48	5:45
24	11.9	5:49	5:43
25	11.9	5:50	5:41
26	11.8	5:51	5:39
27	11.8	5:52	5:38
28	11.7	5:53	5:36
29	11.7	5:54	5:34
30	11.6	5:55	5:33

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.1 kWh/m².

For context, solar energy here swings from a low near 1.8 kWh/m² to a high of 7.24 kWh/m² in July across the year — September's 5.1 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	5.8	5.8	5.8	5.7	5.7	5.6	5.6	5.5	5.5	5.4	5.4	5.3	5.3	5.2	5.2	5.1	5.0	5.0	4.9	4.9	4.8	4.8	4.7	4.6	4.6	4.5	4.5	4.4	4.4	4.3
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	5.8	Bright
2	5.8	Bright
3	5.8	Bright
4	5.7	Bright
5	5.7	Bright
6	5.6	Bright
7	5.6	Bright
8	5.5	Bright
9	5.5	Bright
10	5.4	Bright
11	5.4	Bright
12	5.3	Bright
13	5.3	Bright
14	5.2	Bright
15	5.2	Bright
16	5.1	Bright
17	5.0	Bright
18	5.0	Bright
19	4.9	Bright
20	4.9	Bright
21	4.8	Bright
22	4.8	Bright
23	4.7	Bright
24	4.6	Bright
25	4.6	Bright
26	4.5	Bright
27	4.5	Bright
28	4.4	Bright
29	4.4	Bright
30	4.3	Bright

Planning a trip in September

Is September a good time to visit Nallıhan?

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

8.2

Sightseeing

1st-best month of the year

7.4

Beach & pool

3rd-best month of the year

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

What to pack for Nallıhan in September

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

In September, Nallıhan sees daytime highs around 25°C and nights near 12°C. Worth packing: light clothes and sun protection. About 4 days see rain.

light clothessun protection

UV index in Nallıhan 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 Nallıhan peaks around August 10 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	2	2	3	7	7	9	9	10	7	4	3	2
Level	Low	Moderate	Moderate	High	Very high	Very high	Very high	Very high	Very high	Moderate	Moderate	Low

	UV index (midday)	Level
Jan	2	Low
Feb	2	Moderate
Mar	3	Moderate
Apr	7	High
May	7	Very high
Jun	9	Very high
Jul	9	Very high
Aug	10	Very high
Sep	7	Very high
Oct	4	Moderate
Nov	3	Moderate
Dec	2	Low

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

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	10	11	16	16	17	13	11	10	10	11	11	10
Level	Good	Good	Moderate	Moderate	Moderate	Moderate	Good	Good	Good	Good	Good	Good

	PM2.5 (µg/m³)	Level
Jan	10	Good
Feb	11	Good
Mar	16	Moderate
Apr	16	Moderate
May	17	Moderate
Jun	13	Moderate
Jul	11	Good
Aug	10	Good
Sep	10	Good
Oct	11	Good
Nov	11	Good
Dec	10	Good

Location & terrain

Where is Nallıhan?

Nallıhan sits at 40.2°N, 31.4°E, 630 m above sea level, in Turkey. The nearest listed city is Beypazarı, 48 km away.

Topography around Nallıhan

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

Within 3 km, the terrain around Nallıhan has large variations in elevation — a maximum elevation change of 716 m around an average of 766 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,353 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,327 m.

The land around Nallıhan is covered by trees (45%) and grassland (39%) within 3 km, trees (40%) and grassland (39%) within 16 km, and trees (43%), grassland (31%) and cropland (23%) within 80 km.

3 km

716 m

trees 45%

16 km

1,353 m

trees 40%

80 km

2,327 m

trees 43%

treesgrasslandcroplandartificial surfacesbare terrainwater

← August Nallıhan year-round climate October →Best places to visit in September

September weather nearby: Beypazarı 48 km · Bolu 65 km · Kaynaşlı 65 km · Düzce 74 km · Akyazı 83 km · Eskişehir 84 km · Hendek 85 km · Polatlı 95 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

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 Nallıhan (40.1859°, 31.3518°, elevation 630 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).

	Avg high (°C)	Avg low (°C)
1	28	14
2	28	13
3	27	13
4	27	13
5	27	13
6	27	13
7	27	13
8	27	12
9	26	12
10	26	12
11	26	12
12	26	12
13	26	12
14	26	12
15	26	12
16	25	12
17	25	12
18	25	11
19	25	11
20	25	11
21	24	11
22	24	11
23	24	11
24	24	11
25	24	11
26	23	10
27	23	10
28	23	10
29	23	10
30	23	10

	Clearer (%)	Cloudier (%)
1	92	8
2	92	8
3	92	8
4	92	8
5	92	8
6	91	9
7	91	9
8	90	10
9	90	10
10	90	10
11	89	11
12	88	12
13	88	12
14	88	12
15	86	14
16	86	14
17	84	16
18	84	16
19	82	18
20	82	18
21	81	19
22	80	20
23	79	21
24	79	21
25	78	22
26	77	23
27	77	23
28	77	23
29	77	23
30	77	23

	Rain chance (%)
1	15
2	14
3	14
4	14
5	14
6	13
7	13
8	13
9	13
10	13
11	12
12	13
13	13
14	13
15	13
16	13
17	13
18	13
19	14
20	14
21	14
22	14
23	14
24	15
25	15
26	15
27	15
28	15
29	15
30	15

	Dry (%)	Comfortable (%)	Humid (%)
1	71	27	2
2	73	25	2
3	75	23	2
4	77	21	2
5	79	20	1
6	81	18	1
7	82	17	1
8	83	16	1
9	84	15	1
10	85	14	1
11	86	13	1
12	87	12	1
13	88	12	0
14	89	11	0
15	89	11	0
16	90	10	0
17	90	10	0
18	90	10	0
19	91	9	0
20	91	9	0
21	92	8	0
22	93	7	0
23	93	7	0
24	94	6	0
25	95	5	0
26	96	4	0
27	96	4	0
28	97	3	0
29	97	3	0
30	98	2	0

	Avg high (°C)	Avg low (°C)
1	28	14
2	28	13
3	27	13
4	27	13
5	27	13
6	27	13
7	27	13
8	27	12
9	26	12
10	26	12
11	26	12
12	26	12
13	26	12
14	26	12
15	26	12
16	25	12
17	25	12
18	25	11
19	25	11
20	25	11
21	24	11
22	24	11
23	24	11
24	24	11
25	24	11
26	23	10
27	23	10
28	23	10
29	23	10
30	23	10

	Clearer (%)	Cloudier (%)
1	92	8
2	92	8
3	92	8
4	92	8
5	92	8
6	91	9
7	91	9
8	90	10
9	90	10
10	90	10
11	89	11
12	88	12
13	88	12
14	88	12
15	86	14
16	86	14
17	84	16
18	84	16
19	82	18
20	82	18
21	81	19
22	80	20
23	79	21
24	79	21
25	78	22
26	77	23
27	77	23
28	77	23
29	77	23
30	77	23

	Rain chance (%)
1	15
2	14
3	14
4	14
5	14
6	13
7	13
8	13
9	13
10	13
11	12
12	13
13	13
14	13
15	13
16	13
17	13
18	13
19	14
20	14
21	14
22	14
23	14
24	15
25	15
26	15
27	15
28	15
29	15
30	15

	Dry (%)	Comfortable (%)	Humid (%)
1	71	27	2
2	73	25	2
3	75	23	2
4	77	21	2
5	79	20	1
6	81	18	1
7	82	17	1
8	83	16	1
9	84	15	1
10	85	14	1
11	86	13	1
12	87	12	1
13	88	12	0
14	89	11	0
15	89	11	0
16	90	10	0
17	90	10	0
18	90	10	0
19	91	9	0
20	91	9	0
21	92	8	0
22	93	7	0
23	93	7	0
24	94	6	0
25	95	5	0
26	96	4	0
27	96	4	0
28	97	3	0
29	97	3	0
30	98	2	0

	Avg high (°C)	Avg low (°C)
1	28	14
2	28	13
3	27	13
4	27	13
5	27	13
6	27	13
7	27	13
8	27	12
9	26	12
10	26	12
11	26	12
12	26	12
13	26	12
14	26	12
15	26	12
16	25	12
17	25	12
18	25	11
19	25	11
20	25	11
21	24	11
22	24	11
23	24	11
24	24	11
25	24	11
26	23	10
27	23	10
28	23	10
29	23	10
30	23	10

	Clearer (%)	Cloudier (%)
1	92	8
2	92	8
3	92	8
4	92	8
5	92	8
6	91	9
7	91	9
8	90	10
9	90	10
10	90	10
11	89	11
12	88	12
13	88	12
14	88	12
15	86	14
16	86	14
17	84	16
18	84	16
19	82	18
20	82	18
21	81	19
22	80	20
23	79	21
24	79	21
25	78	22
26	77	23
27	77	23
28	77	23
29	77	23
30	77	23

	Rain chance (%)
1	15
2	14
3	14
4	14
5	14
6	13
7	13
8	13
9	13
10	13
11	12
12	13
13	13
14	13
15	13
16	13
17	13
18	13
19	14
20	14
21	14
22	14
23	14
24	15
25	15
26	15
27	15
28	15
29	15
30	15

	Dry (%)	Comfortable (%)	Humid (%)
1	71	27	2
2	73	25	2
3	75	23	2
4	77	21	2
5	79	20	1
6	81	18	1
7	82	17	1
8	83	16	1
9	84	15	1
10	85	14	1
11	86	13	1
12	87	12	1
13	88	12	0
14	89	11	0
15	89	11	0
16	90	10	0
17	90	10	0
18	90	10	0
19	91	9	0
20	91	9	0
21	92	8	0
22	93	7	0
23	93	7	0
24	94	6	0
25	95	5	0
26	96	4	0
27	96	4	0
28	97	3	0
29	97	3	0
30	98	2	0