Tumba weather in May

In May, Tumba sees average daytime highs of 15°C and overnight lows near 5°C, with 45 mm of precipitation across 9.6 wet days and about 16.6 hours of daylight. It is the 5th-warmest and 7th-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 26% of the time in May, and the air most often feels dry.

Daylight stretches from about 15 h 24 min at the start of May to 17 h 36 min by month's end. Set against the rest of the year, May is Tumba's 1st-clearest and 9th-windiest month. For the whole year in context, see Tumba's year-round climate.

Daytime high
15°
5th warmest
Overnight low
8th coldest
Precipitation
45 mm
9.6 wet days
Daylight
16 h 36 min
3:26 AM – 8:04 PM
Cloud cover
61%
1st clearest
Wind
12 km/h
9th windiest
Solar energy
5.42 kWh/m²
Travel score
4.6
out of 10

Tumba is urban area in Botkyrka and Salem Municipalities, Sweden.

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 Tumba 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 10°C and 21°C. Set against its neighbours, May runs about 5°C warmer than April and about 4°C cooler than June.

10°20°151015202531
Avg high (°C)Avg low (°C)
1133
2133
3133
4134
5134
6134
7144
8144
9144
10144
11145
12145
13155
14155
15155
16155
17155
18156
19166
20166
21166
22166
23166
24167
25167
26177
27177
28177
29177
30178
31178

How May really feels in Tumba

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

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Tumba weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -4°368.15.46.60.0
Feb / -5°307.56.18.80.0
Mar / -3°307.74.611.30.2
Apr10° / 338.11.514.12.2
May15° / 459.60.216.64.6
Jun19° / 10°6611.4018.15.8
Jul22° / 13°7111.5017.56.3
Aug21° / 12°7012.1015.26.0
Sep16° / 518.7012.64.9
Oct10° / 499.50.29.82.2
Nov / 469.92.87.30.2
Dec / -3°4410.45.65.90.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% 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 56%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14357
24258
34357
44456
54456
64456
74456
84555
94555
104456
114555
124555
134654
144555
154456
164654
174555
184456
194456
204357
214456
224456
234357
244357
254357
264357
274456
284357
294456
304456
314555

Chance of precipitation in May

Any precipitationSnow

Tumba gets around 45 mm of rain and snow over 9.6 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 31% and peaks near 33% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1302
2302
3301
4291
5291
6291
7291
8291
9291
10291
11291
12291
13291
14291
15291
16301
17301
18311
19310
20320
21320
22330
23330
24330
25330
26330
27320
28320
29320
30320
31310

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 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
13991
14991
15991
16991
17991
18991
19991
20991
21991
22991
23991
24991
25991
26991
27991
28991
29991
30982
31982

Wind in May

Winds average 12 km/h in May.

Across May, daily wind ranges from about 12 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
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
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 24 min at the start of May to 17 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 132 minutes over May. Sunrise moves from 4:03 AM to 2:59 AM, and sunset from 7:29 PM to 8:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.44:037:29
215.54:007:31
315.63:587:33
415.73:557:36
515.83:537:38
615.83:507:41
715.93:487:43
816.03:457:45
916.13:437:48
1016.23:407:50
1116.23:387:52
1216.33:357:54
1316.43:337:57
1416.53:317:59
1516.53:298:01
1616.63:268:04
1716.73:248:06
1816.83:228:08
1916.83:208:10
2016.93:188:12
2117.03:168:14
2217.03:148:16
2317.13:128:18
2417.23:108:20
2517.23:088:22
2617.33:078:24
2717.43:058:26
2817.43:038:28
2917.53:028:30
3017.53:008:32
3117.62:598:34

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.42 kWh/m².

For context, solar energy here swings from a low near 0.21 kWh/m² to a high of 5.73 kWh/m² in June across the year — May's 5.42 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
145.4Bright
155.5Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in May

Is May a good time to visit Tumba?

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

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

May is a reasonable time to visit Tumba for sightseeing.

What to pack for Tumba in May

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

In May, Tumba sees daytime highs around 15°C and nights near 5°C. Worth packing: a warm layer, rain gear and sun protection. About 10 days see rain.

a warm layerrain gearsun protection

Sea temperature near Tumba in May

The nearest coast averages about 7°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 32 km away) is warmest in August at about 17°C and coldest in March near 2°C.

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

0°5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan3Bracing
Feb2Bracing
Mar2Bracing
Apr3Bracing
May7Bracing
Jun12Bracing
Jul16Cool
Aug17Cool
Sep14Bracing
Oct10Bracing
Nov7Bracing
Dec5Bracing

UV index in Tumba 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 Tumba peaks around June 17 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateModerateLowJun 17UV 5Dec 19UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr3Moderate
May4Moderate
Jun5High
Jul5Moderate
Aug4Moderate
Sep3Moderate
Oct1Low
Nov0Low
Dec0Low
Location & terrain

Where is Tumba?

Tumba sits at 59.2°N, 17.8°E, 25 m above sea level, in Sweden. The nearest listed city is Tullinge, 4.0 km away.

Topography around Tumba

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

Within 3 km, the terrain around Tumba has only modest variations in elevation — a maximum elevation change of 88 m around an average of 43 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 110 m; within 80 km, only modest variations in elevation — a maximum elevation change of 130 m.

The land around Tumba is covered by trees (66%) within 3 km, trees (63%) within 16 km, and trees (42%) and water (40%) within 80 km.

3 km
88 m
16 km
110 m
80 km
130 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Tullinge 4.0 km · Huddinge 9.0 km · Ekerö 10 km · Södertälje 12 km · Årsta 17 km · Bromma 17 km · Haninge 18 km · Södermalm 19 km

Sweden travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 87% of US
price level, 2025
GDP per capita
$63,133
2025
Happiness
7.3 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
1.1
per 100k, 2023
Road deaths
3.1
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 609
Religion
Church of Sweden 54%none or unspecified 37%other 9%

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 Tumba (59.1986°, 17.8332°, elevation 25 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).