Nallıhan weather in January

In January, Nallıhan sees average daytime highs of 4°C and overnight lows near -2°C, with 53 mm of precipitation across 9.7 wet days and about 9.5 hours of daylight. It is the 12th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 4°C through the month. The sky is clear or mostly clear about 25% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 12 min at the start of January to 9 h 54 min by month's end. Set against the rest of the year, January is Nallıhan's 12th-clearest and 9th-windiest month. For the whole year in context, see Nallıhan's year-round climate.

Daytime high
12th warmest
Overnight low
-2°
1st coldest
Precipitation
53 mm
9.7 wet days
Daylight
9 h 24 min
7:21 AM – 4:47 PM
Cloud cover
65%
12th clearest
Wind
6 km/h
9th windiest
Solar energy
2.11 kWh/m²
Travel score
0.0
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.

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 4°C through the month.

A typical January day in Nallıhan reaches about 4°C in the afternoon and slips back to -2°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between -1°C and 9°C. Set against its neighbours, January runs about 2°C cooler than December and about 2°C cooler than February.

-10°-5°10°151015202531
Avg high (°C)Avg low (°C)
14-2
24-2
34-2
44-2
54-2
64-2
74-2
84-2
94-2
104-2
114-2
124-2
134-2
144-2
154-2
164-2
174-2
184-2
194-3
204-3
214-3
224-3
234-3
244-3
254-3
264-3
274-3
284-3
294-3
304-3
314-3

How January really feels in Nallıhan

Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 31 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
31
wind chill below the day's low

The story in January is cold — wind chill drags the overnight "feels like" below the raw low.

Nallıhan weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°539.76.99.50.0
Feb / -2°519.65.610.40.6
Mar11° / 59114.411.72.5
Apr16° / 5511.11134.9
May21° / 5211.2014.26.5
Jun25° / 12°409.5014.87.2
Jul29° / 15°143.6014.67.0
Aug29° / 15°174.8013.66.6
Sep25° / 12°174.1012.38.2
Oct19° / 366.30.110.96.8
Nov11° / 417.21.69.83.2
Dec / -1°579.84.49.20.3

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 13% of January, with mostly cloudy or overcast conditions the remaining 62%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13466
23565
33565
43664
53664
63763
73664
83664
93763
103862
113862
123961
133961
143862
153961
163961
173961
183961
193961
203961
213961
223961
233961
243961
253961
263961
273961
283961
293961
304060
314060

Chance of precipitation in January

Any precipitationSnow

Nallıhan gets around 53 mm of rain and snow over 9.7 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 30% and peaks near 35% on the wettest days, and about 7 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
13521
23522
33522
43422
53422
63322
73322
83222
93122
103122
113022
122922
132821
142721
152721
162721
172721
182721
192721
202821
212821
222922
232922
243022
253022
263122
273122
283122
293122
303222
313222

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, January lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in January

Winds average 6 km/h in January.

Across January, 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.

0246810151015202531
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
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 12 min at the start of January to 9 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over January. Sunrise moves from 7:22 AM to 7:12 AM, and sunset from 4:33 PM to 5:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.27:224:33
29.27:224:34
39.27:224:35
49.27:234:36
59.27:234:36
69.27:234:37
79.37:234:38
89.37:224:39
99.37:224:40
109.37:224:41
119.37:224:42
129.37:224:43
139.47:224:44
149.47:214:45
159.47:214:46
169.47:214:47
179.57:204:48
189.57:204:49
199.57:204:50
209.57:194:51
219.67:194:52
229.67:184:53
239.67:184:55
249.67:174:56
259.77:164:57
269.77:164:58
279.77:154:59
289.87:145:00
299.87:145:01
309.87:135:03
319.97:125:04

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.11 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 — January's 2.11 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
11.8Dim
21.8Dim
31.8Dim
41.9Dim
51.9Dim
61.9Dim
71.9Dim
81.9Dim
92.0Dim
102.0Dim
112.0Moderate
122.0Moderate
132.1Moderate
142.1Moderate
152.1Moderate
162.1Moderate
172.2Moderate
182.2Moderate
192.2Moderate
202.2Moderate
212.3Moderate
222.3Moderate
232.3Moderate
242.3Moderate
252.4Moderate
262.4Moderate
272.4Moderate
282.4Moderate
292.5Moderate
302.5Moderate
312.5Moderate
Planning a trip in January

Is January a good time to visit Nallıhan?

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

0.0
Sightseeing
12th-best month of the year
0.0
Beach & pool
10th-best month of the year

January is a weaker month for outdoor sightseeing in Nallıhan.

What to pack for Nallıhan in January

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

In January, Nallıhan sees daytime highs around 4°C and nights near -2°C. Pack a warm layer. Worth having: a heavy coat and rain gear. About 10 days see rain.

a warm layera heavy coatrain gear

UV index in Nallıhan in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 2. 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highModerateLowAug 10UV 10Dec 21UV 2
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar3Moderate
Apr7High
May7Very high
Jun9Very high
Jul9Very high
Aug10Very high
Sep7Very high
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Nallıhan in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January 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).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMay 916 µg/m³Dec 2310 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar16Moderate
Apr16Moderate
May17Moderate
Jun13Moderate
Jul11Good
Aug10Good
Sep10Good
Oct11Good
Nov11Good
Dec10Good
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.

Polatlı

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
16 km
1,353 m
80 km
2,327 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January 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
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 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).