Solothurn weather in July

In July, Solothurn sees average daytime highs of 23°C and overnight lows near 14°C, with 146 mm of rain across 17.1 wet days and about 15.3 hours of daylight. It is the 1st-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 28% of the time in July, and the air most often feels dry.

Daylight stretches from about 15 h 42 min at the start of July to 14 h 48 min by month's end. Set against the rest of the year, July is Solothurn's 1st-clearest and 8th-windiest month. For the whole year in context, see Solothurn's year-round climate.

Daytime high
23°
1st warmest
Overnight low
14°
12th coldest
Rainfall
146 mm
17.1 wet days
Daylight
15 h 24 min
4:54 AM – 8:16 PM
Cloud cover
57%
1st clearest
Wind
7 km/h
8th windiest
Solar energy
5.59 kWh/m²
Travel score
5.9
out of 10
Air quality
Good
PM2.5 9 µg/m³ · 2020

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 23°C through the month.

A typical July day in Solothurn reaches about 23°C in the afternoon and slips back to 14°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 29°C. Set against its neighbours, July runs about 2°C warmer than June and on par with August.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12313
22313
32313
42313
52313
62313
72313
82313
92313
102313
112314
122314
132314
142314
152314
162314
172314
182314
192414
202414
212414
222414
232414
242414
252414
262414
272414
282414
292414
302414
312414

How July really feels in Solothurn

Once humidity and wind are folded in, July 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

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

Solothurn weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°83137.18.70.0
Feb / -2°7411.76.7100.2
Mar10° / 9014.14.911.62.0
Apr14° / 10315.62.213.33.4
May18° / 14617.90.214.84.6
Jun21° / 12°14017.5015.65.4
Jul23° / 14°14617.1015.35.9
Aug23° / 13°14916.30145.9
Sep19° / 10°10813.6012.45.3
Oct14° / 10213.40.410.63.5
Nov / 9613.33.69.11.0
Dec / -1°10014.26.48.40.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in July, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 23% of July, with mostly cloudy or overcast conditions the remaining 49%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25050
35050
44951
54951
64951
74753
84852
94852
104753
114852
124852
135050
145050
155050
165149
175149
185248
195347
205347
215347
225446
235446
245446
255446
265446
275446
285347
295446
305446
315347

Chance of precipitation in July

Any precipitation

Solothurn gets around 146 mm of rain over 17.1 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 55% and peaks near 56% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
154
254
355
455
555
656
756
856
956
1055
1155
1255
1355
1455
1555
1655
1755
1855
1954
2054
2154
2254
2354
2455
2555
2655
2756
2856
2956
3056
3156

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the dry band about 44% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
1503416
2513415
3503515
4503515
5513514
6513514
7503614
8513613
9513613
10513613
11513613
12513613
13513613
14503713
15493714
16483714
17473815
18463915
19444016
20434116
21424217
22404217
23394318
24384419
25364419
26354520
27344521
28334521
29334522
30334523
31324423

Wind in July

Winds average 7 km/h in July.

Across July, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 15 h 42 min at the start of July to 14 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 54 minutes over July. Sunrise moves from 4:43 AM to 5:11 AM, and sunset from 8:23 PM to 8:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.74:438:23
215.74:438:23
315.64:448:23
415.64:458:23
515.64:458:23
615.64:468:22
715.64:478:22
815.64:478:21
915.54:488:21
1015.54:498:20
1115.54:508:20
1215.54:518:19
1315.44:528:19
1415.44:538:18
1515.44:548:17
1615.44:548:16
1715.34:558:16
1815.34:568:15
1915.34:588:14
2015.24:598:13
2115.25:008:12
2215.25:018:11
2315.15:028:10
2415.15:038:09
2515.15:048:08
2615.05:058:07
2715.05:068:06
2814.95:088:04
2914.95:098:03
3014.95:108:02
3114.85:118:01

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.59 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.03 kWh/m² to a high of 5.59 kWh/m² in July across the year — July's 5.59 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.7Bright
75.6Bright
85.6Bright
95.6Bright
105.6Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.4Bright
295.4Bright
305.4Bright
315.3Bright
Planning a trip in July

Is July a good time to visit Solothurn?

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

5.9
Sightseeing
1st-best month of the year
4.7
Beach & pool
1st-best month of the year

July is a reasonable time to visit Solothurn for sightseeing.

What to pack for Solothurn in July

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

In July, Solothurn sees daytime highs around 23°C and nights near 14°C. Pack rain gear. Worth having: light clothes and sun protection. About 17 days see rain.

rain gearlight clothessun protection

UV index in Solothurn in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Solothurn peaks around July 15 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 15UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr5Moderate
May7High
Jun7Very high
Jul8Very high
Aug7High
Sep4Moderate
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Solothurn?

Solothurn sits at 47.2°N, 7.5°E, 440 m above sea level, in Switzerland. The nearest listed city is Grenchen, 11 km away.

Biel/BienneBernOltenReinachKönizMuttenz

Topography around Solothurn

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

Within 3 km, the terrain around Solothurn has only modest variations in elevation — a maximum elevation change of 182 m around an average of 471 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,021 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,836 m.

The land around Solothurn is covered by trees (41%) and artificial surfaces (24%) within 3 km, trees (47%), grassland (24%) and cropland (21%) within 16 km, and trees (47%) and grassland (31%) within 80 km.

3 km
182 m
16 km
1,021 m
80 km
3,836 m
treesgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Grenchen 11 km · Burgdorf 18 km · Biel/Bienne 23 km · Bern 30 km · Olten 32 km · Reinach 32 km · Köniz 33 km · Muttenz 36 km

Switzerland travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / J
230 V · 50 Hz
Prices
≈ 112% of US
price level, 2025
GDP per capita
$114,769
2025
Happiness
7.0 / 10
World Happiness, 2025
Safe drinking water
97%
of population, 2024
Homicide rate
0.6
per 100k, 2023
Road deaths
2.2
per 100k/yr, 2019
Income group
High
World Bank
English
High
EF EPI 564
Religion
Roman Catholic 34%none 29%Protestant 23%other Christian 6%

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 Solothurn (47.2079°, 7.5371°, elevation 440 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. 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).