Karhula weather in March

In March, Karhula sees average daytime highs of 1°C and overnight lows near -5°C, with 37 mm of precipitation across 9 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 -1°C in the first days to 3°C by the end. The sky is clear or mostly clear about 22% 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 Karhula's 7th-clearest and 7th-windiest month. For the whole year in context, see Karhula's year-round climate.

Daytime high
9th warmest
Overnight low
-5°
3rd coldest
Precipitation
37 mm
9 wet days
Daylight
11 h 18 min
6:43 AM – 6:01 PM
Cloud cover
69%
7th clearest
Wind
15 km/h
7th windiest
Solar energy
2.31 kWh/m²
Travel score
0.0
out of 10

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about -1°C in the first days to 3°C by the end.

A typical March day in Karhula reaches about 1°C in the afternoon and slips back to -5°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between -4°C and 5°C. Set against its neighbours, March runs about 4°C warmer than February and about 6°C cooler than April.

-20°-10°10°151015202531
Avg high (°C)Avg low (°C)
1-2-7
2-1-7
3-1-6
4-1-6
5-1-6
6-1-6
7-1-6
80-6
90-6
100-6
110-5
120-5
130-5
141-5
151-5
161-5
171-5
181-5
191-5
201-5
212-5
222-4
232-4
242-4
252-4
262-4
273-4
283-4
293-3
303-3
313-3

How March really feels in Karhula

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
20 feel bitter (≤ -10°C)

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

Karhula 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-3° / -7°4710.910.96.30.0
Feb-3° / -8°429.29.28.60.0
Mar / -5°3797.211.30.0
Apr / 358.82.614.20.9
May13° / 439.50.116.93.7
Jun17° / 10°6411.1018.55.3
Jul21° / 14°5810.1017.86.4
Aug20° / 13°6611.6015.45.9
Sep15° / 5810.2012.64.2
Oct / 6411.619.71.3
Nov / -0°61125.170.0
Dec-0° / -4°5912.395.50.0

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 12% of March, with mostly cloudy or overcast conditions the remaining 67%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12377
22377
32575
42575
52674
62773
72872
83070
93070
103268
113268
123268
133367
143466
153565
163664
173664
183763
193763
203763
213862
223862
233862
243763
253862
263862
273961
283961
293862
303961
313961

Chance of precipitation in March

Any precipitationSnow

Karhula gets around 37 mm of rain and snow over 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 29% and peaks near 30% on the wettest days, and about 7 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
13028
23028
33027
43027
52926
62926
72925
82925
92925
102824
112924
122924
132924
142924
152924
162923
172923
182923
192823
202822
212922
222922
232922
242922
252921
262921
272920
282920
292919
302918
312918

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 15 km/h in March.

Across March, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light 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 7:29 AM to 5:55 AM, and sunset from 5:22 PM to 6:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.97:295:22
210.07:265:25
310.17:235:28
410.27:205:30
510.37:175:33
610.47:145:35
710.57:115:38
810.67:085:41
910.67:045:43
1010.77:015:46
1110.86:585:48
1210.96:555:51
1311.06:525:54
1411.16:495:56
1511.26:465:59
1611.36:436:01
1711.46:396:04
1811.56:366:06
1911.66:336:09
2011.76:306:11
2111.86:276:14
2211.96:246:17
2312.06:216:19
2412.16:176:22
2512.26:146:24
2612.36:116:27
2712.46:086:29
2812.56:056:32
2912.56:016:34
3012.65:586:37
3112.75:556:39

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 2.31 kWh/m².

For context, solar energy here swings from a low near 0.14 kWh/m² to a high of 5.61 kWh/m² in June across the year — March's 2.31 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
11.4Dim
21.5Dim
31.5Dim
41.6Dim
51.6Dim
61.7Dim
71.8Dim
81.8Dim
91.9Dim
101.9Dim
112.0Moderate
122.1Moderate
132.1Moderate
142.2Moderate
152.3Moderate
162.3Moderate
172.4Moderate
182.4Moderate
192.5Moderate
202.6Moderate
212.6Moderate
222.7Moderate
232.7Moderate
242.8Moderate
252.9Moderate
262.9Moderate
273.0Moderate
283.0Moderate
293.1Moderate
303.1Moderate
313.2Moderate
Planning a trip in March

Is March a good time to visit Karhula?

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
6th-best month of the year

March is a weaker month for outdoor sightseeing in Karhula.

What to pack for Karhula in March

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

In March, Karhula sees daytime highs around 1°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 Karhula in March

The nearest coast averages about 0°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 17 km away) is warmest in August at about 17°C and coldest in February near 0°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
Jan1Bracing
Feb0Bracing
Mar0Bracing
Apr2Bracing
May6Bracing
Jun12Bracing
Jul17Cool
Aug17Cool
Sep14Bracing
Oct10Bracing
Nov7Bracing
Dec4Bracing

UV index in Karhula 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 Karhula peaks around June 20 at about 5 (high) — a little sun protection helps at midday. It bottoms out near December 19 at about 0 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 20UV 5Dec 19UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr3Moderate
May4Moderate
Jun5High
Jul5Moderate
Aug4Moderate
Sep2Moderate
Oct1Low
Nov0Low
Dec0Low
Location & terrain

Where is Karhula?

Karhula sits at 60.5°N, 26.9°E, 4 m above sea level, in Finland. The nearest listed city is Kotka, 6.0 km away.

OrimattilaLahtiMäntsälä

Topography around Karhula

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

Within 3 km, the terrain around Karhula has only modest variations in elevation — a maximum elevation change of 54 m around an average of 15 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 90 m; within 80 km, only modest variations in elevation — a maximum elevation change of 178 m.

The land around Karhula is covered by trees (60%) within 3 km, trees (49%) and water (33%) within 16 km, and water (47%) and trees (44%) within 80 km.

3 km
54 m
16 km
90 m
80 km
178 m
treesgrasslandcroplandartificial surfaceswaterwetland
March weather nearby: Kotka 6.0 km · Hamina 16 km · Anjala 19 km · Kouvola 40 km · Porvoo 71 km · Orimattila 73 km · Lahti 86 km · Mäntsälä 89 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 Karhula (60.5216°, 26.9312°, elevation 4 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).