Porvoo weather in March

In March, Porvoo sees average daytime highs of 2°C and overnight lows near -5°C, with 36 mm of precipitation across 8.5 wet days and about 11.3 hours of daylight. It is the 9th-warmest and 11th-wettest month of the year here.

Highs climb over the month, from about -0°C in the first days to 5°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 9 h 54 min at the start of March to 12 h 42 min by month's end. Set against the rest of the year, March is Porvoo's 6th-clearest and 6th-windiest month. For the whole year in context, see Porvoo's year-round climate.

Daytime high
9th warmest
Overnight low
-5°
3rd coldest
Precipitation
36 mm
8.5 wet days
Daylight
11 h 18 min
6:48 AM – 6:06 PM
Cloud cover
69%
6th clearest
Wind
13 km/h
6th windiest
Solar energy
2.24 kWh/m²
Travel score
0.0
out of 10

Porvoo is urban area in Porvoo, Finland.

Air quality
Good
PM10 16.6 µg/m³ · 2016

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 -0°C in the first days to 5°C by the end.

A typical March day in Porvoo reaches about 2°C in the afternoon and slips back to -5°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between -3°C and 7°C. Set against its neighbours, March runs about 5°C warmer than February and about 7°C cooler than April.

-20°-10°10°151015202531
Avg high (°C)Avg low (°C)
1-1-7
2-1-7
30-7
40-7
50-6
60-6
70-6
81-6
91-6
101-6
111-6
121-6
132-5
142-5
152-5
162-5
172-5
182-5
193-5
203-5
213-5
223-4
233-4
244-4
254-4
264-4
274-4
284-3
295-3
305-3
315-3

How March really feels in Porvoo

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
18 feel bitter (≤ -10°C)

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

Porvoo weather by month

How March compares with the rest of the year at a glance. March is the 9th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-2° / -7°4510.710.56.30.0
Feb-2° / -8°3998.98.60.0
Mar / -5°368.57.411.30.0
Apr / 368.82.314.21.7
May15° / 459.40.116.84.8
Jun19° / 10°7111.9018.55.8
Jul22° / 13°6811.2017.86.4
Aug21° / 12°6511.7015.46.1
Sep15° / 519.9012.64.5
Oct / 5510.40.89.71.4
Nov / -1°5410.94.77.10.0
Dec-0° / -4°5311.79.35.50.0

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 11% of March, with mostly cloudy or overcast conditions the remaining 66%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12377
22575
32674
42674
52674
62872
72872
83070
93070
103169
113268
123367
133367
143565
153664
163664
173763
183763
193862
203862
213862
223961
233961
243961
253961
263961
273961
283961
293961
303961
313862

Chance of precipitation in March

Any precipitationSnow

Porvoo gets around 36 mm of rain and snow over 8.5 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 28% and peaks near 30% on the wettest days, and about 7 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
13030
22930
32929
42929
52828
62827
72827
82726
92726
102725
112725
122724
132724
142723
152723
162722
172722
182621
192621
202621
212721
222721
232721
242821
252820
262920
272919
282919
293018
303018
313017

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 13 km/h in March.

Across March, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in March

DaylightNight

Daylight runs from about 9 h 54 min at the start of March to 12 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 168 minutes over March. Sunrise moves from 7:34 AM to 6:00 AM, and sunset from 5:28 PM to 6:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.97:345:28
210.07:315:30
310.17:285:33
410.27:255:35
510.37:215:38
610.47:185:41
710.57:155:43
810.67:125:46
910.77:095:48
1010.77:065:51
1110.87:035:54
1210.97:005:56
1311.06:575:59
1411.16:546:01
1511.26:516:04
1611.36:486:06
1711.46:446:09
1811.56:416:11
1911.66:386:14
2011.76:356:17
2111.86:326:19
2211.96:296:22
2312.06:266:24
2412.16:226:27
2512.26:196:29
2612.36:166:32
2712.46:136:34
2812.46:106:37
2912.56:076:39
3012.66:036:42
3112.76:006:44

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 2.24 kWh/m².

For context, solar energy here swings from a low near 0.14 kWh/m² to a high of 5.57 kWh/m² in June across the year — March's 2.24 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
11.4Dim
21.4Dim
31.5Dim
41.6Dim
51.6Dim
61.6Dim
71.7Dim
81.8Dim
91.8Dim
101.9Dim
111.9Dim
122.0Moderate
132.1Moderate
142.1Moderate
152.2Moderate
162.2Moderate
172.3Moderate
182.4Moderate
192.4Moderate
202.5Moderate
212.5Moderate
222.6Moderate
232.6Moderate
242.7Moderate
252.8Moderate
262.8Moderate
272.9Moderate
282.9Moderate
293.0Moderate
303.0Moderate
313.0Moderate
Planning a trip in March

Is March a good time to visit Porvoo?

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

0.0
Sightseeing
8th-best month of the year
0.0
Beach & pool
7th-best month of the year

March is a weaker month for outdoor sightseeing in Porvoo.

What to pack for Porvoo in March

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

In March, Porvoo sees daytime highs around 2°C and nights near -5°C. Pack a warm layer and a heavy coat. Worth having: rain gear. About 9 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Porvoo in March

The nearest coast averages about 1°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 30 km away) is warmest in August at about 17°C and coldest in March near 1°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan2Bracing
Feb1Bracing
Mar1Bracing
Apr2Bracing
May6Bracing
Jun12Bracing
Jul16Cool
Aug17Cool
Sep15Bracing
Oct10Bracing
Nov7Bracing
Dec4Bracing

UV index in Porvoo in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Porvoo peaks around June 18 at about 5 (high) — a little sun protection helps at midday. It bottoms out near January 1 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 4 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateModerateLowJun 18UV 5Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr3Moderate
May4Moderate
Jun5High
Jul5Moderate
Aug4Moderate
Sep2Moderate
Oct1Low
Nov0Low
Dec0Low
Location & terrain

Where is Porvoo?

Porvoo sits at 60.4°N, 25.7°E, 29 m above sea level, in Finland. The nearest listed city is Sibbo, 22 km away.

Topography around Porvoo

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

Within 3 km, the terrain around Porvoo has only modest variations in elevation — a maximum elevation change of 58 m around an average of 20 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 98 m; within 80 km, only modest variations in elevation — a maximum elevation change of 226 m.

The land around Porvoo is covered by trees (51%) and artificial surfaces (22%) within 3 km, trees (61%) within 16 km, and trees (43%) and water (42%) within 80 km.

3 km
58 m
16 km
98 m
80 km
226 m
treesgrasslandcroplandartificial surfaceswaterwetland
March weather nearby: Sibbo 22 km · Kerava 31 km · Järvenpää 33 km · Mäntsälä 33 km · Tuusula 35 km · Vuosaari 35 km · Mellunkylä 36 km · Vantaa 36 km

Finland travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 85% of US
price level, 2025
GDP per capita
$56,149
2025
Happiness
7.8 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
1
per 100k, 2023
Road deaths
3.9
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 603
Religion
Lutheran 67%none 31%other 2%Greek Orthodox 1%

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 Porvoo (60.3923°, 25.6651°, elevation 29 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).