Tumba weather in August

In August, Tumba sees average daytime highs of 21°C and overnight lows near 12°C, with 70 mm of rain across 12.1 wet days and about 15.2 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 22°C in the first days to 19°C by the end. The sky is clear or mostly clear about 18% of the time in August, and the air most often feels dry.

Daylight stretches from about 16 h 30 min at the start of August to 14 hours by month's end. Set against the rest of the year, August is Tumba's 6th-clearest and 11th-windiest month. For the whole year in context, see Tumba's year-round climate.

Daytime high
21°
2nd warmest
Overnight low
12°
11th coldest
Rainfall
70 mm
12.1 wet days
Daylight
15 h 18 min
4:15 AM – 7:31 PM
Cloud cover
65%
6th clearest
Wind
11 km/h
11th windiest
Solar energy
4.21 kWh/m²
Travel score
6.0
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 August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 22°C in the first days to 19°C by the end.

A typical August day in Tumba reaches about 21°C in the afternoon and slips back to 12°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 25°C. Set against its neighbours, August runs about 1°C cooler than July and about 5°C warmer than September.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12213
22213
32213
42213
52213
62213
72213
82213
92213
102213
112113
122113
132112
142112
152112
162112
172112
182112
192012
202012
212012
222012
232012
242011
252011
261911
271911
281911
291911
301911
311910

How August really feels in Tumba

Once humidity and wind are folded in, August 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

August 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 August compares with the rest of the year at a glance. August is the 2nd-warmest and 2nd-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 August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 20% of August, with mostly cloudy or overcast conditions the remaining 62%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14456
24456
34456
44357
54357
64258
74258
84258
94060
103961
113961
123862
133763
143763
153664
163664
173763
183763
193664
203664
213664
223664
233664
243664
253664
263664
273664
283664
293664
303664
313763

Chance of precipitation in August

Any precipitation

Tumba gets around 70 mm of rain over 12.1 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 39% and peaks near 40% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
237
337
438
538
639
739
839
940
1040
1140
1240
1340
1440
1540
1640
1740
1840
1940
2040
2140
2239
2339
2439
2539
2638
2738
2838
2937
3037
3136

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the dry band about 57% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14736143
24736133
34836133
44936123
54936113
65036113
75136103
85136103
9533692
10533692
11543682
12543682
13553681
14553681
15563671
16573571
17573571
18583471
19583471
20593371
21593371
22613270
23623170
24623170
25643060
26652960
27672760
28682660
29702550
30712450
31722350

Wind in August

Winds average 11 km/h in August.

Across August, 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
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 16 h 30 min at the start of August to 14 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 150 minutes over August. Sunrise moves from 3:41 AM to 4:50 AM, and sunset from 8:09 PM to 6:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
116.53:418:09
216.43:438:07
316.33:458:04
416.23:478:02
516.23:507:59
616.13:527:57
716.03:547:54
815.93:567:52
915.83:597:49
1015.84:017:47
1115.74:037:44
1215.64:067:41
1315.54:087:39
1415.44:107:36
1515.34:137:33
1615.34:157:31
1715.24:177:28
1815.14:207:25
1915.04:227:22
2014.94:247:19
2114.84:277:17
2214.74:297:14
2314.74:317:11
2414.64:347:08
2514.54:367:05
2614.44:387:02
2714.34:416:59
2814.24:436:56
2914.14:456:53
3014.04:486:50
3114.04:506:47

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.21 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 — August's 4.21 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.8Bright
44.8Bright
54.7Bright
64.7Bright
74.6Bright
84.6Bright
94.5Bright
104.5Bright
114.4Bright
124.4Bright
134.3Bright
144.3Bright
154.2Bright
164.2Bright
174.1Bright
184.1Bright
194.0Bright
204.0Bright
214.0Moderate
223.9Moderate
233.8Moderate
243.8Moderate
253.7Moderate
263.7Moderate
273.6Moderate
283.6Moderate
293.5Moderate
303.5Moderate
313.4Moderate
Planning a trip in August

Is August a good time to visit Tumba?

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

6.0
Sightseeing
2nd-best month of the year
3.5
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Tumba for sightseeing.

What to pack for Tumba in August

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

In August, Tumba sees daytime highs around 21°C and nights near 12°C. Worth packing: rain gear. About 12 days see rain.

rain gear

Sea temperature near Tumba in August

The nearest coast averages about 17°C in August — 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 August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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
August 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).