Bolu weather in March

In March, Bolu sees average daytime highs of 9°C and overnight lows near -0°C, with 107 mm of precipitation across 14.9 wet days and about 11.7 hours of daylight. It is the 9th-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 8°C in the first days to 11°C by the end. The sky is clear or mostly clear about 23% of the time in March, and the air most often feels dry.

Daylight stretches from about 11 hours at the start of March to 12 h 24 min by month's end. Set against the rest of the year, March is Bolu's 10th-clearest and 4th-windiest month. For the whole year in context, see Bolu's year-round climate.

Daytime high
9th warmest
Overnight low
-0°
4th coldest
Precipitation
107 mm
14.9 wet days
Daylight
11 h 42 min
6:13 AM – 5:53 PM
Cloud cover
66%
10th clearest
Wind
6 km/h
4th windiest
Solar energy
4.05 kWh/m²
Travel score
1.6
out of 10

Bolu is central district and city in Bolu Province, Turkey.

Air quality
Elevated
PM2.5 24.4 µg/m³ · 2019
Density
6,840/km²
people per km²

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

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 8°C in the first days to 11°C by the end.

A typical March day in Bolu reaches about 9°C in the afternoon and slips back to -0°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 2°C and 16°C. Set against its neighbours, March runs about 4°C warmer than February and about 5°C cooler than April.

-10°10°20°151015202531
Avg high (°C)Avg low (°C)
18-1
28-1
38-1
48-1
58-1
68-1
78-1
88-1
98-1
108-1
118-1
1280
1380
1480
1580
1690
1790
1890
1990
2090
2190
22100
23100
24100
25101
26101
27111
28111
29111
30111
31112

How March really feels in Bolu

Once humidity and wind are folded in, March 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 March is cold — wind chill drags the overnight "feels like" below the raw low.

Bolu weather by month

How March compares with the rest of the year at a glance. March is the 9th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -4°9113.9119.40.0
Feb / -3°8813.81010.40.2
Mar / -0°10714.98.511.71.6
Apr14° / 9914.42.513.13.5
May18° / 11015.90.114.25.2
Jun22° / 11°9613.3014.96.3
Jul24° / 14°508.6014.67.6
Aug25° / 14°528.3013.67.7
Sep22° / 11°668.8012.37.1
Oct17° / 9011.20.810.95.4
Nov11° / 7510.33.69.72.8
Dec / -2°9613.48.29.10.4

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 13% of March, with mostly cloudy or overcast conditions the remaining 64%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13565
23565
33565
43565
53466
63466
73466
83367
93367
103367
113466
123367
133466
143466
153466
163466
173565
183664
193763
203763
213763
223763
233862
243862
253862
263961
273862
283961
293961
303961
313961

Chance of precipitation in March

Any precipitationSnow

Bolu gets around 107 mm of rain and snow over 14.9 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 49% and peaks near 51% on the wettest days, and about 9 days bring snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
15031
25030
35030
45030
55030
65029
75030
85030
95130
105131
115131
125131
135131
145131
155131
165031
175031
184930
194829
204829
214728
224727
234726
244724
254723
264722
274720
284719
294718
304816
314916

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March 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 March

Winds average 6 km/h in March.

Across March, 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
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 hours at the start of March to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 84 minutes over March. Sunrise moves from 6:37 AM to 5:48 AM, and sunset from 5:36 PM to 6:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.06:375:36
211.06:365:37
311.16:345:39
411.16:335:40
511.26:315:41
611.26:305:42
711.36:285:43
811.36:265:44
911.36:255:45
1011.46:235:47
1111.46:225:48
1211.56:205:49
1311.56:185:50
1411.66:175:51
1511.66:155:52
1611.76:135:53
1711.76:125:54
1811.86:105:55
1911.86:085:56
2011.86:075:58
2111.96:055:59
2211.96:036:00
2312.06:016:01
2412.06:006:02
2512.15:586:03
2612.15:566:04
2712.25:556:05
2812.25:536:06
2912.35:516:07
3012.35:496:08
3112.45:486:09

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.05 kWh/m².

For context, solar energy here swings from a low near 1.72 kWh/m² to a high of 6.88 kWh/m² in July across the year — March's 4.05 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
13.5Moderate
23.5Moderate
33.5Moderate
43.6Moderate
53.6Moderate
63.6Moderate
73.7Moderate
83.7Moderate
93.7Moderate
103.8Moderate
113.8Moderate
123.9Moderate
133.9Moderate
143.9Moderate
154.0Moderate
164.0Bright
174.1Bright
184.1Bright
194.2Bright
204.2Bright
214.3Bright
224.3Bright
234.3Bright
244.4Bright
254.4Bright
264.5Bright
274.5Bright
284.5Bright
294.6Bright
304.6Bright
314.7Bright
Planning a trip in March

Is March a good time to visit Bolu?

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

1.6
Sightseeing
9th-best month of the year
0.0
Beach & pool
9th-best month of the year

March is a weaker month for outdoor sightseeing in Bolu.

What to pack for Bolu in March

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

In March, Bolu sees daytime highs around 9°C and nights near -0°C. Pack a warm layer and rain gear. About 15 days see rain.

a warm layerrain gear

Sea temperature near Bolu in March

The nearest coast averages about 8°C in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 47 km away) is warmest in August at about 25°C and coldest in February near 7°C.

It's comfortable for a long swim from Jun 11 to Oct 12 — about 4.1 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan9Bracing
Feb7Bracing
Mar8Bracing
Apr11Bracing
May16Cool
Jun21Refreshing
Jul24Refreshing
Aug25Warm
Sep23Refreshing
Oct20Cool
Nov15Cool
Dec12Bracing

UV index in Bolu in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Bolu peaks around August 10 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowAug 10UV 9Dec 19UV 2
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar3Moderate
Apr7High
May7Very high
Jun9Very high
Jul9Very high
Aug9Very high
Sep6High
Oct4Moderate
Nov2Moderate
Dec2Low

Air quality in Bolu in March

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where March falls, not just the annual average.

Air quality in Bolu is worst in May — around 33 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (December, 19 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Bolu's WHO annual average of 24.4 µg/m³.

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateMay 933 µg/m³Dec 2319 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb23Moderate
Mar32Moderate
Apr33Moderate
May33Moderate
Jun26Moderate
Jul21Moderate
Aug21Moderate
Sep20Moderate
Oct22Moderate
Nov22Moderate
Dec19Moderate
Location & terrain

Where is Bolu?

Bolu sits at 40.7°N, 31.6°E, 733 m above sea level, in Turkey. The nearest listed city is Kaynaşlı, 24 km away.

Topography around Bolu

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

Within 3 km, the terrain around Bolu has only modest variations in elevation — a maximum elevation change of 178 m around an average of 745 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,296 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,359 m.

The land around Bolu is covered by artificial surfaces (51%) and cropland (33%) within 3 km, trees (67%) within 16 km, and trees (63%) and grassland (21%) within 80 km.

3 km
178 m
16 km
1,296 m
80 km
2,359 m
treesgrasslandcroplandartificial surfacesbare terrainwater
March weather nearby: Kaynaşlı 24 km · Düzce 39 km · Gerede 50 km · Alaplı 53 km · Akçakoca 56 km · Devrek 61 km · Ereğli 63 km · Nallıhan 65 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 Bolu (40.7358°, 31.6061°, elevation 733 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).