Lieto weather in May

In May, Lieto sees average daytime highs of 15°C and overnight lows near 5°C, with 41 mm of precipitation across 9.1 wet days and about 16.9 hours of daylight. It is the 5th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 13°C in the first days to 17°C by the end. The sky is clear or mostly clear about 32% of the time in May, and the air most often feels dry.

Daylight stretches from about 15 h 36 min at the start of May to 18 hours by month's end. Set against the rest of the year, May is Lieto's 1st-clearest and 9th-windiest month. For the whole year in context, see Lieto's year-round climate.

Daytime high
15°
5th warmest
Overnight low
8th coldest
Precipitation
41 mm
9.1 wet days
Daylight
16 h 54 min
3:59 AM – 8:54 PM
Cloud cover
58%
1st clearest
Wind
12 km/h
9th windiest
Solar energy
5.48 kWh/m²
Travel score
4.6
out of 10

Lieto is village in Lieto, Finland.

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 13°C in the first days to 17°C by the end.

A typical May day in Lieto reaches about 15°C in the afternoon and slips back to 5°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 21°C. Set against its neighbours, May runs about 6°C warmer than April and about 4°C cooler than June.

10°20°151015202531
Avg high (°C)Avg low (°C)
1122
2122
3133
4133
5133
6133
7133
8143
9143
10144
11144
12144
13144
14154
15154
16155
17155
18155
19155
20165
21166
22166
23166
24166
25166
26166
27177
28177
29177
30177
31177

How May really feels in Lieto

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 6 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
6
wind chill below the day's low

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

Lieto weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-2° / -6°4810.18.96.30.0
Feb-2° / -8°378.27.48.60.0
Mar / -5°368.5611.30.0
Apr / -0°338.31.914.21.7
May15° / 419.10.116.94.6
Jun19° / 6611.2018.55.8
Jul22° / 12°7912.3017.86.3
Aug20° / 11°7612.2015.46.0
Sep15° / 559.5012.64.5
Oct / 5810.20.69.71.6
Nov / -0°53113.67.10.0
Dec / -4°5511.375.50.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in May, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 18% of May, with mostly cloudy or overcast conditions the remaining 50%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24753
34951
44951
54951
65050
75050
85149
95149
105248
115248
125248
135149
145149
155149
165149
175149
185050
195050
205050
214951
224951
235050
245050
255050
265050
274951
285050
295050
305149
315050

Chance of precipitation in May

Any precipitationSnow

Lieto gets around 41 mm of rain and snow over 9.1 wet days in May. 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 34% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1282
2282
3282
4271
5271
6271
7271
8271
9270
10260
11260
12260
13260
14260
15260
16270
17270
18280
19290
20290
21300
22310
23310
24320
25320
26330
27330
28330
29330
30340
31340

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 (%)Humid (%)
110000
210000
310000
410000
510000
610000
710000
810000
910000
109910
119910
129910
139910
149910
159820
169820
179820
189820
199820
209820
219820
229820
239721
249721
259721
269631
279631
289631
299631
309631
319631

Wind in May

Winds average 12 km/h in May.

Across May, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
912calm
1012calm
1112calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 15 h 36 min at the start of May to 18 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 144 minutes over May. Sunrise moves from 4:38 AM to 3:29 AM, and sunset from 8:16 PM to 9:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.64:388:16
215.74:368:19
315.84:338:21
415.94:308:24
516.04:278:26
616.14:258:29
716.24:228:31
816.24:198:34
916.34:178:36
1016.44:148:39
1116.54:118:41
1216.64:098:44
1316.74:068:46
1416.74:048:49
1516.84:028:51
1616.93:598:54
1717.03:578:56
1817.13:548:58
1917.13:529:01
2017.23:509:03
2117.33:489:05
2217.43:469:08
2317.43:439:10
2417.53:419:12
2517.63:399:14
2617.63:379:16
2717.73:369:19
2817.83:349:21
2917.83:329:23
3017.93:309:25
3118.03:299:26

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.48 kWh/m².

For context, solar energy here swings from a low near 0.15 kWh/m² to a high of 5.79 kWh/m² in June across the year — May's 5.48 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
35.0Bright
45.0Bright
55.1Bright
65.1Bright
75.2Bright
85.2Bright
95.3Bright
105.3Bright
115.3Bright
125.4Bright
135.4Bright
145.5Bright
155.5Bright
165.5Bright
175.5Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in May

Is May a good time to visit Lieto?

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

4.6
Sightseeing
4th-best month of the year
0.4
Beach & pool
5th-best month of the year

May is a reasonable time to visit Lieto for sightseeing.

What to pack for Lieto in May

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

In May, Lieto sees daytime highs around 15°C and nights near 5°C. Worth packing: a warm layer, rain gear and sun protection. About 9 days see rain.

a warm layerrain gearsun protection

Sea temperature near Lieto in May

The nearest coast averages about 6°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 43 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
Sep14Bracing
Oct10Bracing
Nov7Bracing
Dec5Bracing

UV index in Lieto in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Lieto peaks around June 17 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 17UV 5Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr3Moderate
May4Moderate
Jun5High
Jul5Moderate
Aug4Moderate
Sep2Moderate
Oct1Low
Nov0Low
Dec0Low
Location & terrain

Where is Lieto?

Lieto sits at 60.5°N, 22.5°E, 15 m above sea level, in Finland. The nearest listed city is Turku, 12 km away.

Forssa

Topography around Lieto

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

Within 3 km, the terrain around Lieto has only modest variations in elevation — a maximum elevation change of 65 m around an average of 33 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 96 m; within 80 km, significant variations in elevation — a maximum elevation change of 276 m.

The land around Lieto is covered by trees (46%) and cropland (39%) within 3 km, trees (55%) and cropland (27%) within 16 km, and trees (52%) and water (28%) within 80 km.

3 km
65 m
16 km
96 m
80 km
276 m
treesgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Turku 12 km · Kaarina 13 km · Raisio 16 km · Naantali 24 km · Väståboland 25 km · Salo 39 km · Loimaa 50 km · Forssa 72 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 Lieto (60.5103°, 22.4618°, elevation 15 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).