Naantali weather in March

In March, Naantali sees average daytime highs of 2°C and overnight lows near -4°C, with 34 mm of precipitation across 8.2 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 4°C by the end. The sky is clear or mostly clear about 25% 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 Naantali's 7th-clearest and 6th-windiest month. For the whole year in context, see Naantali's year-round climate.

Daytime high: 2°; 9th warmest
Overnight low: -4°; 3rd coldest
Precipitation: 34 mm; 8.2 wet days
Daylight: 11 h 18 min; 7:02 AM – 6:21 PM
Cloud cover: 66%; 7th clearest
Wind: 14 km/h; 6th windiest
Solar energy: 2.33 kWh/m²
Travel score: 0.0; out of 10

← February Naantali year-round climate April →Best places to visit in March

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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 4°C by the end.

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

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	0	0	0	0	0	0	1	1	1	1	1	1	1	2	2	2	2	2	2	3	3	3	3	3	3	4	4	4	4	4	4
Avg low (°C)	-6	-6	-6	-6	-6	-5	-5	-5	-5	-5	-5	-5	-5	-5	-4	-4	-4	-4	-4	-4	-4	-4	-4	-3	-3	-3	-3	-3	-3	-2	-2

	Avg high (°C)	Avg low (°C)
1	0	-6
2	0	-6
3	0	-6
4	0	-6
5	0	-6
6	0	-5
7	1	-5
8	1	-5
9	1	-5
10	1	-5
11	1	-5
12	1	-5
13	1	-5
14	2	-5
15	2	-4
16	2	-4
17	2	-4
18	2	-4
19	2	-4
20	3	-4
21	3	-4
22	3	-4
23	3	-4
24	3	-3
25	3	-3
26	4	-3
27	4	-3
28	4	-3
29	4	-3
30	4	-2
31	4	-2

How March really feels in Naantali

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

heat index over the day's high

Days feeling ≤ 0°C

14 feel bitter (≤ -10°C)

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

Naantali 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.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	-1° / -5°	48	10.2	8.3	6.3	0.0
Feb	-2° / -7°	36	8.4	7.2	8.6	0.0
Mar	2° / -4°	34	8.2	5.4	11.3	0.0
Apr	8° / 0°	32	7.7	1.8	14.2	1.2
May	13° / 5°	39	8.6	0.1	16.9	4.0
Jun	18° / 10°	62	10.5	0	18.5	5.6
Jul	21° / 13°	76	11.8	0	17.8	6.2
Aug	20° / 12°	75	12.2	0	15.4	5.9
Sep	15° / 9°	58	9.7	0	12.6	4.4
Oct	9° / 4°	62	11	0.6	9.7	1.7
Nov	4° / 1°	58	11.3	3.2	7.1	0.1
Dec	1° / -3°	57	12.3	6.8	5.5	0.0

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% 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 62%. Skies tend to open up as the month goes on.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	29	29	30	32	32	33	34	35	37	37	37	38	38	39	39	40	41	41	41	41	42	42	42	42	42	42	43	43	42	42	42
Cloudier (%)	71	71	70	68	68	67	66	65	63	63	63	62	62	61	61	60	59	59	59	59	58	58	58	58	58	58	57	57	58	58	58

	Clearer (%)	Cloudier (%)
1	29	71
2	29	71
3	30	70
4	32	68
5	32	68
6	33	67
7	34	66
8	35	65
9	37	63
10	37	63
11	37	63
12	38	62
13	38	62
14	39	61
15	39	61
16	40	60
17	41	59
18	41	59
19	41	59
20	41	59
21	42	58
22	42	58
23	42	58
24	42	58
25	42	58
26	42	58
27	43	57
28	43	57
29	42	58
30	42	58
31	42	58

Chance of precipitation in March

Any precipitationSnow

Naantali gets around 34 mm of rain and snow over 8.2 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 27% and peaks near 30% on the wettest days, and about 5 days bring snow.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	30	30	30	29	29	28	28	28	27	27	27	27	27	27	26	26	26	26	25	25	25	25	25	25	25	25	25	25	25	25	26
Snow chance (%)	23	23	22	22	21	21	20	20	19	19	19	18	18	17	17	17	17	16	16	16	16	15	15	15	15	14	14	13	13	13	12

	Rain chance (%)	Snow chance (%)
1	30	23
2	30	23
3	30	22
4	29	22
5	29	21
6	28	21
7	28	20
8	28	20
9	27	19
10	27	19
11	27	19
12	27	18
13	27	18
14	27	17
15	26	17
16	26	17
17	26	17
18	26	16
19	25	16
20	25	16
21	25	16
22	25	15
23	25	15
24	25	15
25	25	15
26	25	14
27	25	14
28	25	13
29	25	13
30	25	13
31	26	12

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.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

Wind in March

Winds average 14 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.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

	Wind speed (km/h)	Feels
1	15	light breeze
2	15	light breeze
3	15	light breeze
4	15	light breeze
5	15	light breeze
6	15	light breeze
7	15	light breeze
8	15	light breeze
9	15	light breeze
10	15	light breeze
11	15	light breeze
12	15	light breeze
13	15	light breeze
14	15	light breeze
15	15	light breeze
16	15	light breeze
17	14	light breeze
18	14	light breeze
19	14	light breeze
20	14	light breeze
21	14	light breeze
22	14	light breeze
23	14	light breeze
24	14	light breeze
25	14	light breeze
26	14	light breeze
27	14	light breeze
28	14	light breeze
29	14	light breeze
30	14	light breeze
31	14	light 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 7:48 AM to 6:15 AM, and sunset from 5:42 PM to 6:59 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	9.9	10.0	10.1	10.2	10.3	10.4	10.5	10.6	10.6	10.7	10.8	10.9	11.0	11.1	11.2	11.3	11.4	11.5	11.6	11.7	11.8	11.9	12.0	12.1	12.2	12.3	12.4	12.5	12.5	12.6	12.7
Sunrise (AM)	7:48	7:45	7:42	7:39	7:36	7:33	7:30	7:27	7:24	7:21	7:18	7:15	7:12	7:08	7:05	7:02	6:59	6:56	6:53	6:50	6:46	6:43	6:40	6:37	6:34	6:31	6:27	6:24	6:21	6:18	6:15
Sunset (PM)	5:42	5:45	5:47	5:50	5:53	5:55	5:58	6:00	6:03	6:05	6:08	6:11	6:13	6:16	6:18	6:21	6:23	6:26	6:29	6:31	6:34	6:36	6:39	6:41	6:44	6:46	6:49	6:51	6:54	6:56	6:59

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	9.9	7:48	5:42
2	10.0	7:45	5:45
3	10.1	7:42	5:47
4	10.2	7:39	5:50
5	10.3	7:36	5:53
6	10.4	7:33	5:55
7	10.5	7:30	5:58
8	10.6	7:27	6:00
9	10.6	7:24	6:03
10	10.7	7:21	6:05
11	10.8	7:18	6:08
12	10.9	7:15	6:11
13	11.0	7:12	6:13
14	11.1	7:08	6:16
15	11.2	7:05	6:18
16	11.3	7:02	6:21
17	11.4	6:59	6:23
18	11.5	6:56	6:26
19	11.6	6:53	6:29
20	11.7	6:50	6:31
21	11.8	6:46	6:34
22	11.9	6:43	6:36
23	12.0	6:40	6:39
24	12.1	6:37	6:41
25	12.2	6:34	6:44
26	12.3	6:31	6:46
27	12.4	6:27	6:49
28	12.5	6:24	6:51
29	12.5	6:21	6:54
30	12.6	6:18	6:56
31	12.7	6:15	6:59

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 2.33 kWh/m².

For context, solar energy here swings from a low near 0.16 kWh/m² to a high of 5.97 kWh/m² in June across the year — March's 2.33 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	1.5	1.5	1.6	1.6	1.7	1.7	1.8	1.9	1.9	2.0	2.0	2.1	2.1	2.2	2.3	2.3	2.4	2.5	2.5	2.6	2.6	2.7	2.8	2.8	2.9	2.9	3.0	3.0	3.1	3.1	3.2
Level	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	1.5	Dim
2	1.5	Dim
3	1.6	Dim
4	1.6	Dim
5	1.7	Dim
6	1.7	Dim
7	1.8	Dim
8	1.9	Dim
9	1.9	Dim
10	2.0	Dim
11	2.0	Moderate
12	2.1	Moderate
13	2.1	Moderate
14	2.2	Moderate
15	2.3	Moderate
16	2.3	Moderate
17	2.4	Moderate
18	2.5	Moderate
19	2.5	Moderate
20	2.6	Moderate
21	2.6	Moderate
22	2.7	Moderate
23	2.8	Moderate
24	2.8	Moderate
25	2.9	Moderate
26	2.9	Moderate
27	3.0	Moderate
28	3.0	Moderate
29	3.1	Moderate
30	3.1	Moderate
31	3.2	Moderate

Planning a trip in March

Is March a good time to visit Naantali?

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

0.0

Sightseeing

9th-best month of the year

0.0

Beach & pool

6th-best month of the year

March is a weaker month for outdoor sightseeing in Naantali.

What to pack for Naantali in March

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

In March, Naantali sees daytime highs around 2°C and nights near -4°C. Pack a warm layer and a heavy coat. Worth having: rain gear. About 8 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Naantali 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 24 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	2	1	1	2	6	11	16	17	14	10	7	4
Comfort	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Cool	Cool	Bracing	Bracing	Bracing	Bracing

	Sea temperature (°C)	Comfort
Jan	2	Bracing
Feb	1	Bracing
Mar	1	Bracing
Apr	2	Bracing
May	6	Bracing
Jun	11	Bracing
Jul	16	Cool
Aug	17	Cool
Sep	14	Bracing
Oct	10	Bracing
Nov	7	Bracing
Dec	4	Bracing

UV index in Naantali 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 Naantali peaks around June 16 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	0	1	2	3	4	5	4	4	2	1	0	0
Level	Low	Low	Low	Moderate	Moderate	High	Moderate	Moderate	Moderate	Low	Low	Low

	UV index (midday)	Level
Jan	0	Low
Feb	1	Low
Mar	2	Low
Apr	3	Moderate
May	4	Moderate
Jun	5	High
Jul	4	Moderate
Aug	4	Moderate
Sep	2	Moderate
Oct	1	Low
Nov	0	Low
Dec	0	Low

Location & terrain

Where is Naantali?

Naantali sits at 60.5°N, 22.0°E, 9 m above sea level, in Finland. The nearest listed city is Raisio, 8.0 km away.

Topography around Naantali

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

Within 3 km, the terrain around Naantali has only modest variations in elevation — a maximum elevation change of 49 m around an average of 13 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 73 m; within 80 km, significant variations in elevation — a maximum elevation change of 263 m.

The land around Naantali is covered by trees (45%) and water (28%) within 3 km, trees (48%) and water (25%) within 16 km, and water (43%) and trees (41%) within 80 km.

3 km

49 m

trees 45%

16 km

73 m

trees 48%

80 km

263 m

water 43%

treesgrasslandcroplandartificial surfacesbare terrainwaterwetland

← February Naantali year-round climate April →Best places to visit in March

March weather nearby: Raisio 8.0 km · Turku 14 km · Kaarina 20 km · Väståboland 24 km · Lieto 24 km · Salo 62 km · Loimaa 70 km · Rauma 78 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

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 Naantali (60.4674°, 22.0243°, elevation 9 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).

	Avg high (°C)	Avg low (°C)
1	0	-6
2	0	-6
3	0	-6
4	0	-6
5	0	-6
6	0	-5
7	1	-5
8	1	-5
9	1	-5
10	1	-5
11	1	-5
12	1	-5
13	1	-5
14	2	-5
15	2	-4
16	2	-4
17	2	-4
18	2	-4
19	2	-4
20	3	-4
21	3	-4
22	3	-4
23	3	-4
24	3	-3
25	3	-3
26	4	-3
27	4	-3
28	4	-3
29	4	-3
30	4	-2
31	4	-2

	Clearer (%)	Cloudier (%)
1	29	71
2	29	71
3	30	70
4	32	68
5	32	68
6	33	67
7	34	66
8	35	65
9	37	63
10	37	63
11	37	63
12	38	62
13	38	62
14	39	61
15	39	61
16	40	60
17	41	59
18	41	59
19	41	59
20	41	59
21	42	58
22	42	58
23	42	58
24	42	58
25	42	58
26	42	58
27	43	57
28	43	57
29	42	58
30	42	58
31	42	58

	Rain chance (%)	Snow chance (%)
1	30	23
2	30	23
3	30	22
4	29	22
5	29	21
6	28	21
7	28	20
8	28	20
9	27	19
10	27	19
11	27	19
12	27	18
13	27	18
14	27	17
15	26	17
16	26	17
17	26	17
18	26	16
19	25	16
20	25	16
21	25	16
22	25	15
23	25	15
24	25	15
25	25	15
26	25	14
27	25	14
28	25	13
29	25	13
30	25	13
31	26	12

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°C)	Avg low (°C)
1	0	-6
2	0	-6
3	0	-6
4	0	-6
5	0	-6
6	0	-5
7	1	-5
8	1	-5
9	1	-5
10	1	-5
11	1	-5
12	1	-5
13	1	-5
14	2	-5
15	2	-4
16	2	-4
17	2	-4
18	2	-4
19	2	-4
20	3	-4
21	3	-4
22	3	-4
23	3	-4
24	3	-3
25	3	-3
26	4	-3
27	4	-3
28	4	-3
29	4	-3
30	4	-2
31	4	-2

	Clearer (%)	Cloudier (%)
1	29	71
2	29	71
3	30	70
4	32	68
5	32	68
6	33	67
7	34	66
8	35	65
9	37	63
10	37	63
11	37	63
12	38	62
13	38	62
14	39	61
15	39	61
16	40	60
17	41	59
18	41	59
19	41	59
20	41	59
21	42	58
22	42	58
23	42	58
24	42	58
25	42	58
26	42	58
27	43	57
28	43	57
29	42	58
30	42	58
31	42	58

	Rain chance (%)	Snow chance (%)
1	30	23
2	30	23
3	30	22
4	29	22
5	29	21
6	28	21
7	28	20
8	28	20
9	27	19
10	27	19
11	27	19
12	27	18
13	27	18
14	27	17
15	26	17
16	26	17
17	26	17
18	26	16
19	25	16
20	25	16
21	25	16
22	25	15
23	25	15
24	25	15
25	25	15
26	25	14
27	25	14
28	25	13
29	25	13
30	25	13
31	26	12

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°C)	Avg low (°C)
1	0	-6
2	0	-6
3	0	-6
4	0	-6
5	0	-6
6	0	-5
7	1	-5
8	1	-5
9	1	-5
10	1	-5
11	1	-5
12	1	-5
13	1	-5
14	2	-5
15	2	-4
16	2	-4
17	2	-4
18	2	-4
19	2	-4
20	3	-4
21	3	-4
22	3	-4
23	3	-4
24	3	-3
25	3	-3
26	4	-3
27	4	-3
28	4	-3
29	4	-3
30	4	-2
31	4	-2

	Clearer (%)	Cloudier (%)
1	29	71
2	29	71
3	30	70
4	32	68
5	32	68
6	33	67
7	34	66
8	35	65
9	37	63
10	37	63
11	37	63
12	38	62
13	38	62
14	39	61
15	39	61
16	40	60
17	41	59
18	41	59
19	41	59
20	41	59
21	42	58
22	42	58
23	42	58
24	42	58
25	42	58
26	42	58
27	43	57
28	43	57
29	42	58
30	42	58
31	42	58

	Rain chance (%)	Snow chance (%)
1	30	23
2	30	23
3	30	22
4	29	22
5	29	21
6	28	21
7	28	20
8	28	20
9	27	19
10	27	19
11	27	19
12	27	18
13	27	18
14	27	17
15	26	17
16	26	17
17	26	17
18	26	16
19	25	16
20	25	16
21	25	16
22	25	15
23	25	15
24	25	15
25	25	15
26	25	14
27	25	14
28	25	13
29	25	13
30	25	13
31	26	12

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100