Sierre weather in July

In July, Sierre sees average daytime highs of 17°C and overnight lows near 7°C, with 127 mm of precipitation across 16.1 wet days and about 15.2 hours of daylight. It is the 1st-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 17°C through the month. The sky is clear or mostly clear about 31% of the time in July, and the air most often feels dry.

Daylight stretches from about 15 h 36 min at the start of July to 14 h 42 min by month's end. Set against the rest of the year, July is Sierre's 2nd-clearest and 10th-windiest month. For the whole year in context, see Sierre's year-round climate.

Daytime high
17°
1st warmest
Overnight low
12th coldest
Precipitation
127 mm
16.1 wet days
Daylight
15 h 18 min
4:58 AM – 8:13 PM
Cloud cover
54%
2nd clearest
Wind
4 km/h
10th windiest
Solar energy
5.95 kWh/m²
Travel score
5.0
out of 10

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 17°C through the month.

A typical July day in Sierre reaches about 17°C in the afternoon and slips back to 7°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 22°C. Set against its neighbours, July runs about 2°C warmer than June and on par with August.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1177
2177
3177
4177
5177
6177
7177
8177
9177
10177
11177
12177
13177
14177
15177
16177
17177
18187
19187
20187
21187
22187
23187
24187
25187
26187
27187
28187
29187
30187
31187

How July really feels in Sierre

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.

Sierre 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-5° / -14°11812.213.18.80.0
Feb-2° / -12°9811.411.8100.0
Mar / -7°10113.113.111.60.0
Apr / -3°10613.510.913.30.4
May11° / 13816.46.214.72.1
Jun15° / 13116.71.515.53.9
Jul17° / 12716.10.815.25.0
Aug17° / 11913.80.7145.2
Sep13° / 10612.82.412.33.6
Oct / -1°10212.36.210.71.6
Nov / -8°12213.111.69.20.0
Dec-4° / -13°12513.1148.50.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 25% of July, with mostly cloudy or overcast conditions the remaining 43%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25644
35743
45644
55644
65644
75545
85545
95545
105545
115644
125644
135545
145644
155644
165743
175644
185644
195644
205743
215842
225842
235842
245842
255842
265743
275743
285842
295743
305743
315743

Chance of precipitation in July

Any precipitationSnow

Sierre gets around 127 mm of rain and snow over 16.1 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 52% and peaks near 54% on the wettest days, and about 1 day brings snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
1532
2532
3532
4543
5543
6543
7544
8534
9534
10534
11524
12524
13524
14514
15514
16514
17514
18513
19513
20512
21512
22512
23511
24511
25511
26511
27511
28510
29500
30500
31490

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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in July

Winds average 4 km/h in July.

Across July, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 15 h 36 min at the start of July to 14 h 42 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 4:47 AM to 5:14 AM, and sunset from 8:20 PM to 7:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.64:478:20
215.54:478:20
315.54:488:19
415.54:488:19
515.54:498:19
615.54:508:19
715.54:508:18
815.44:518:18
915.44:528:17
1015.44:538:17
1115.44:538:16
1215.44:548:16
1315.34:558:15
1415.34:568:14
1515.34:578:14
1615.34:588:13
1715.24:598:12
1815.25:008:12
1915.25:018:11
2015.15:028:10
2115.15:038:09
2215.15:048:08
2315.05:058:07
2415.05:068:06
2515.05:078:05
2614.95:088:04
2714.95:098:03
2814.85:118:01
2914.85:128:00
3014.85:137:59
3114.75:147:58

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.95 kWh/m².

For context, solar energy here swings from a low near 1.38 kWh/m² to a high of 6 kWh/m² in June across the year — July's 5.95 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.1Intense
46.1Intense
56.1Intense
66.1Intense
76.1Intense
86.0Intense
96.0Intense
106.0Intense
116.0Intense
126.0Intense
136.0Intense
146.0Intense
156.0Intense
166.0Bright
176.0Bright
186.0Bright
196.0Bright
205.9Bright
215.9Bright
225.9Bright
235.9Bright
245.9Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in July

Is July a good time to visit Sierre?

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

5.0
Sightseeing
2nd-best month of the year
1.4
Beach & pool
1st-best month of the year

July is a reasonable time to visit Sierre for sightseeing.

What to pack for Sierre in July

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

In July, Sierre sees daytime highs around 17°C and nights near 7°C. Pack rain gear. Worth having: a warm layer and sun protection. About 16 days see rain.

rain geara warm layersun protection

UV index in Sierre in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sierre peaks around July 16 at about 9 (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 16UV 9Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar5High
Apr7High
May8Very high
Jun8Very high
Jul9Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Sierre?

Sierre sits at 46.3°N, 7.5°E, 528 m above sea level, in Switzerland. The nearest listed city is Sitten, 16 km away.

ZermattMartigny-VilleLauterbrunnenMontheyMontreuxInterlakenThun

Topography around Sierre

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

Within 3 km, the terrain around Sierre has large variations in elevation — a maximum elevation change of 1,154 m around an average of 747 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,920 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,591 m.

The land around Sierre is covered by trees (62%) and artificial surfaces (20%) within 3 km, trees (40%) and grassland (33%) within 16 km, and trees (40%) and grassland (35%) within 80 km.

3 km
1,154 m
16 km
2,920 m
80 km
4,591 m
treesgrasslandcroplandartificial surfacesbare terrainsnow and icewatermoss and lichen
July weather nearby: Sitten 16 km · Zermatt 34 km · Martigny-Ville 41 km · Lauterbrunnen 44 km · Monthey 45 km · Montreux 50 km · Interlaken 50 km · Thun 51 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 Sierre (46.2919°, 7.5356°, elevation 528 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).