Nallıhan weather in May

In May, Nallıhan sees average daytime highs of 21°C and overnight lows near 9°C, with 52 mm of rain across 11.2 wet days and about 14.2 hours of daylight. It is the 5th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 19°C in the first days to 23°C by the end. The sky is clear or mostly clear about 38% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 42 min at the start of May to 14 h 36 min by month's end. Set against the rest of the year, May is Nallıhan's 6th-clearest and 6th-windiest month. For the whole year in context, see Nallıhan's year-round climate.

Daytime high
21°
5th warmest
Overnight low
8th coldest
Rainfall
52 mm
11.2 wet days
Daylight
14 h 12 min
4:44 AM – 6:57 PM
Cloud cover
51%
6th clearest
Wind
7 km/h
6th windiest
Solar energy
6.27 kWh/m²
Travel score
6.5
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 May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 19°C in the first days to 23°C by the end.

A typical May day in Nallıhan reaches about 21°C in the afternoon and slips back to 9°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 27°C. Set against its neighbours, May runs about 5°C warmer than April and about 4°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1197
2197
3197
4197
5197
6207
7208
8208
9208
10208
11218
12218
13218
14219
15219
16219
17219
18229
19229
20229
212210
222210
232210
242210
252210
262210
272210
282210
292310
302311
312311

How May really feels in Nallıhan

Once humidity and wind are folded in, May 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

May 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 May compares with the rest of the year at a glance. May is the 5th-warmest and 5th-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 May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 22% of May, with mostly cloudy or overcast conditions the remaining 40%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25446
35545
45545
55545
65545
75743
85743
95743
105842
115941
126040
136139
146139
156238
166238
176238
186337
196238
206337
216238
226337
236337
246337
256337
266436
276436
286436
296535
306535
316634

Chance of precipitation in May

Any precipitation

Nallıhan gets around 52 mm of rain over 11.2 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 35% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
133
233
334
434
534
635
735
835
935
1035
1135
1235
1335
1435
1534
1634
1734
1834
1935
2035
2135
2235
2336
2436
2536
2637
2737
2838
2938
3038
3138

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
15991
16991
17991
18991
19982
20982
21982
22973
23973
24973
25964
26964
27964
28955
29955
30946
31937

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 7 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
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 42 min at the start of May to 14 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over May. Sunrise moves from 5:01 AM to 4:33 AM, and sunset from 6:42 PM to 7:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.75:016:42
213.75:006:43
313.84:596:44
413.84:576:45
513.84:566:46
613.94:556:47
713.94:546:48
813.94:536:49
914.04:526:50
1014.04:506:51
1114.14:496:52
1214.14:486:53
1314.14:476:54
1414.24:466:55
1514.24:456:56
1614.24:446:57
1714.24:436:58
1814.34:426:59
1914.34:427:00
2014.34:417:01
2114.44:407:02
2214.44:397:03
2314.44:387:04
2414.54:387:05
2514.54:377:06
2614.54:367:07
2714.54:367:07
2814.64:357:08
2914.64:347:09
3014.64:347:10
3114.64:337:11

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.27 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 — May's 6.27 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.0Bright
26.0Bright
36.0Intense
46.0Intense
56.1Intense
66.1Intense
76.1Intense
86.1Intense
96.2Intense
106.2Intense
116.2Intense
126.2Intense
136.2Intense
146.3Intense
156.3Intense
166.3Intense
176.3Intense
186.3Intense
196.3Intense
206.4Intense
216.4Intense
226.4Intense
236.4Intense
246.4Intense
256.4Intense
266.4Intense
276.5Intense
286.5Intense
296.5Intense
306.5Intense
316.5Intense
Planning a trip in May

Is May a good time to visit Nallıhan?

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

6.5
Sightseeing
6th-best month of the year
4.0
Beach & pool
5th-best month of the year

May is a reasonable time to visit Nallıhan for sightseeing.

What to pack for Nallıhan in May

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

In May, Nallıhan sees daytime highs around 21°C and nights near 9°C. Pack sun protection. Worth having: rain gear. About 11 days see rain.

sun protectionrain gear

UV index in Nallıhan in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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.

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 May

GoodModeratePoorUnhealthyVery unhealthy

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