July Weather in Sierre, Switzerland

Last updated: August 27, 2025

Experience the summer charm of Sierre, Switzerland, where July temperatures can soar to a delightful 28°C (82°F), creating the perfect backdrop for outdoor adventures. The month welcomes an average temperature of 14°C (57°F), but be prepared for cooler nights with lows reaching 1°C (34°F). July also brings about 121 mm (4.8 in) of precipitation over 16 days, contributing to the region's lush landscapes. With humidity levels at 82%, the air is refreshingly crisp, making it an ideal time for exploring this picturesque destination.

July Temperature in Sierre

In Sierre, Switzerland, July brings a delightful warmth, standing out as a peak summer month with temperatures that invite outdoor activities and exploration. With minimums around 1°C (34°F) and average highs reaching up to 28°C (82°F), it's a stark contrast to the winter chill of the earlier months. The consistent rise in temperatures from the previous months showcases a gradual transition towards summer, making July an ideal time for hiking, enjoying local festivals, or simply relaxing in the beautiful alpine surroundings. The pleasant average of 14°C (57°F) makes it a perfect escape from the heat, providing a refreshing atmosphere that balances warmth with the crisp mountain air.

July Weather in Sierre: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Sierre, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sierre, July typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec162329374353565649412918
Data source: Temperature data for Sierre generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

July Precipitation in Sierre

In July, Sierre, Switzerland experiences a moderate precipitation level of 121 mm (4.8 in), continuing a trend seen throughout the summer months. This total is slightly lower than June's 130 mm (5.1 in) but echoes the consistency of rainfall typical for this time of year. With 16 days of rainfall, the region remains lush and green, providing an inviting backdrop for outdoor activities. While the precipitation levels in May peak at 160 mm (6.3 in), July's rainfall contributes to an overall trend of slightly reduced precipitation as summer progresses, hinting at a gradual transition to drier conditions leading into August.

July Precipitation Trends in Sierre

The chart displays monthly precipitation patterns in Sierre, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Sierre, July typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec13596122811601301211299013598188
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Sierre

In July, Sierre, Switzerland experiences a notable humidity level of 82%, maintaining the trend of moderate humidity seen since June. This level represents a slight decrease from the earlier months, as humidity gradually drops from the peak found in winter. Typically high during the colder months, humidity starts to taper off toward the late summer, with August showing an even lower 77%. This gradual decline suggests that while July remains relatively humid, the warmer days are leading to a shift, fostering a comfortable yet refreshing atmosphere perfect for enjoying the picturesque landscapes of Sierre.

July Average Humidity in Sierre

This chart illustrates the average monthly humidity levels in Sierre, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Sierre is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%84%80%82%82%77%81%89%89%91%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Sierre

In July, Sierre, Switzerland experiences a UV Index of 10, categorizing the sun's exposure as very high. This indicates that residents and visitors should be particularly cautious, as the burn time is only 15 minutes under direct sunlight. Following June's peak UV Index of 11, July's readings remain significantly elevated, although slightly lower, emphasizing the ongoing need for sun protection during the summer months. This trend of increasing UV levels from early spring to mid-summer highlights the importance of staying vigilant about sun safety, as the intensity of UV radiation can lead to serious skin damage with minimal exposure. For more information on daily UV levels, check out the comprehensive guide at Sierre UV Index.

Maximum UV Index Levels in Sierre for July

The chart shows the monthly maximum UV Index (UVI) for Sierre in July, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In July, the maximum UV index in Sierre typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec347810111097632
Data source: Sierre July UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

July Sunshine in Sierre

July shines brightly in Sierre, Switzerland, boasting an impressive 416 hours of sunshine—the peak of summer radiance. As the year progresses, it's evident that the days grow longer and sunnier; starting from a modest 176 hours in January, each month blooms with increasing light, reaching 388 hours by June. This upward trend culminates in July, where the warmth and brilliance create an inviting atmosphere for both locals and visitors to enjoy outdoor activities. Following July, the sunshine hours gradually decline, with August still holding strong at 383 hours but signaling the gentle transition toward autumn. The vibrant July sun heralds a season of abundance, making it a cherished time in Sierre.

Monthly Sunshine Duration in Sierre: July Highlighted

The July sunshine duration represents the total number of hours Sierre experiences direct sunlight during the month of July, excluding cloudy or obstructed periods. This chart compares the sunshine duration of July with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec176h234h303h355h360h388h416h383h323h288h232h202h
Data source: Sierre July Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Sierre During July

In Sierre, Switzerland, July brings a 35% chance of sunny weather, which marks a slight dip compared to the previous months of May and June, both sitting at 32%. This period is characterized by a notable variation in sunshine probability throughout the year, with March and October displaying the highest chances at 45% and 44%, respectively. Despite July's relatively modest odds, the summer sun can still grace the region, inviting outdoor adventures. Interestingly, the likelihood of sunny weather in the months leading up to July reflects a gradual increase, with February reaching 40% before the peak summer months, suggesting a transition into warmer, sunnier days as the year unfolds. Overall, while the chance of sunshine in July isn't the highest, the allure of summer still promises plenty of opportunities for sunny escapes.

Percentage of Sunny Days in July in Sierre

The chart illustrates the percentage of sunny days in Sierre throughout the year, with July highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Sierre experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec22%41%45%44%32%32%35%38%33%44%33%41%
Data source: Sierre July chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Sierre in July

In Sierre, Switzerland, July shines brightly with an impressive 15 hours of daylight, maintaining the peak summer glow established in June. This is part of a gradual ascent that begins in January with only 9 hours and reaches a zenith mid-year, reflecting the long, sun-drenched days that define the summer months. As July progresses into August, a gentle decline in daylight begins, tapering to 14 hours. This pattern underscores a seasonal rhythm, where the abundance of light in summer is cherished before the gradual return to shorter days in the fall. The transition from the sun-filled days of July to the crisp autumn months serves as a reminder of the cyclical beauty of nature in this picturesque Swiss locale.

Average Daylight Hours in Sierre for July

The chart illustrates the variation in daylight duration in Sierre throughout the year, with July highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 3m10h 20m11h 56m13h 35m14h 59m15h 42m15h 19m14h 4m12h 29m10h 51m9h 24m8h 39m
Data source: Sierre daylight hours, calculated by summing the hours between sunrise and sunset for each day.

July Winds in Sierre

In July, Sierre, Switzerland, experiences gentle breezes with an average wind speed of 1.1 m/s (approximately 2 mph), a consistent continuation of the subtle calm that has characterized the preceding months. This marks a slight dip from the peak winds of earlier in the year, notably January and February, which recorded their highest averages at around 1.4 m/s (3 mph). As summer unfolds, the winds remain relatively mild, mirroring the tranquil atmosphere of the region, while August shows a return to the 3 mph mark, suggesting a seasonal stability. The overall trend points to a serene yet variable summer climate, allowing for warm sunny days complemented by light winds, perfect for enjoying the picturesque landscapes of the Swiss countryside.

Average July Wind Speed in Sierre

The chart displays monthly wind speed patterns in Sierre, with values for each month shown alongside July's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how July's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.41.61.11.11.11.01.1 m/s1.11.01.31.41.4
Data source: Sierre July wind data, generated using information from the Copernicus Climate Change Service.

How July Weather in Sierre Compares to Other Months

Weather in Sierre varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Sierre, focusing on differences in temperature, rainfall, humidity, and UV levels.

The weather in July and January presents a stark contrast, reflecting the seasonal extremes. In July, temperatures range from a minimum of 1°C (34°F) to a maximum of 28°C (82°F), averaging around 14°C (57°F). This month experiences about 121 mm (4.8 in) of precipitation over 16 days and maintains a high humidity level of 82%. In contrast, January is much colder, with temperatures dipping as low as -27°C (-17°F) and peaking at 6°C (44°F), averaging -9°C (16°F). January also sees slightly higher precipitation at 135 mm (5.3 in) but over fewer days—just 10. The humidity in January is even higher at 91%, contributing to the biting cold. For more detailed information, you can check Sierre weather in January.

July and February present stark contrasts in weather. In July, temperatures range from a chilly 1°C (34°F) at night to a warm 28°C (82°F) during the day, with an average of 14°C (57°F). The month sees considerable rainfall, totaling 121 mm (4.8 in) over 16 days, coupled with high humidity at 82%. In contrast, February is notably colder, with temperatures dipping as low as -23°C (-8°F) and averaging -5°C (23°F); the maximum only reaches 11°C (52°F). Despite lower total precipitation at 95 mm (3.8 in) over 11 days, February experiences higher humidity at 89%. For more detailed information, you can check out Sierre weather in February.

In July, the weather is considerably warmer with temperatures ranging from a chilly 1°C (34°F) to a pleasant maximum of 28°C (82°F), averaging around 14°C (57°F). However, this month experiences significant rainfall, with 121 mm (4.8 in) of precipitation over 16 days, accompanied by high humidity levels at 82%.

In contrast, March presents a much colder climate, featuring minimum temperatures plummeting to -25°C (-12°F) and a maximum of 14°C (57°F), averaging a frigid -2°C (29°F). Precipitation remains similar at 122 mm (4.8 in) but occurs over one day fewer, with 15 days of moisture, and slightly higher humidity at 87%.

For more detailed insights into March weather conditions, you can check Sierre weather in March.

The weather in July is significantly warmer than in April, with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 28°C (82°F), compared to April's range of -17°C (1°F) to 17°C (63°F). While July sees an average temperature of 14°C (57°F), April's average is only 3°C (37°F). Precipitation is higher in July, totaling 121 mm (4.8 in) over 16 days, whereas April experiences 81 mm (3.2 in) over just 11 days. Both months have high humidity, though July's humidity at 82% is slightly less than April's 84%. For further details on April weather, you can visit Sierre weather in April.

In comparing the weather of July and May, it's clear that July experiences significantly warmer temperatures, with average highs reaching up to 28°C (82°F), compared to May's average maximum of 22°C (72°F). However, May starts off colder, with minimum temperatures dipping to -16°C (4°F), while July's minimum is relatively mild at 1°C (34°F). In terms of precipitation, May has a higher amount, with 160 mm (6.3 in) over 20 days, compared to July’s 121 mm (4.8 in) over 16 days, indicating that May is slightly wetter despite the warmer summer conditions in July. Both months also share similar humidity levels, with July at 82% and May at 80%. For a detailed look at May's weather patterns, visit Sierre weather in May.

In comparing the weather between June and July, we see a slight increase in average temperatures, with July's minimum temperature at 1°C (34°F) and an average of 14°C (57°F), compared to June's minimum of -4°C (25°F) and average of 12°C (53°F). July experiences similar maximum temperatures, peaking at 28°C (82°F), slightly surpassing June's maximum of 27°C (81°F). Both months see comparable precipitation levels, with July receiving 121 mm (4.8 in) and June slightly higher at 130 mm (5.1 in), both occurring over 16 days. Humidity remains consistent at 82% for both months. For a more detailed look at June's weather patterns, you can refer to Sierre weather in June.

In July, the weather is warmer, with average temperatures reaching 14°C (57°F) and maximums climbing to 28°C (82°F), while August sees a slight dip in temperatures, averaging around 13°C (56°F) and peaking at 26°C (80°F). Both months experience similar levels of precipitation, with July recording 121 mm (4.8 in) and August slightly higher at 129 mm (5.1 in), yet both months have rainfall on 16 days. Humidity is also noteworthy, as July holds a higher humidity level at 82%, compared to August's 77%. For more detailed insights, you can check Sierre weather in August.

July and September present notably different weather patterns. In July, temperatures range from a minimum of 1°C (34°F) to a comfortable maximum of 28°C (82°F), with an average of 14°C (57°F). This month experiences significant rainfall, with 121 mm (4.8 in) over 16 days and high humidity at 82%. In contrast, September sees cooler temperatures, with a minimum of -5°C (23°F), an average of 9°C (49°F), and a maximum of 22°C (72°F). Precipitation is also lower at 90 mm (3.6 in) over 12 days, accompanied by slightly decreased humidity at 81%. For a more detailed look at September weather, check out Sierre weather in September.

July and October present quite contrasting weather conditions. In July, temperatures range from a minimum of 1°C (34°F) to a maximum of 28°C (82°F), with an average of 14°C (57°F), making it a warm month with high humidity levels at 82%. It also sees significant rainfall, with 121 mm (4.8 in) spread over 16 days. In comparison, October faces cooler temperatures, with a minimum dipping to -6°C (21°F) and an average of 5°C (41°F), peaking at 18°C (64°F). This month is also wetter, experiencing 135 mm (5.3 in) of precipitation over 13 days, coupled with an increase in humidity to 89%. For more details on October weather in Sierre, you can refer to Sierre weather in October.

In July, temperatures range from a chilly 1°C (34°F) to a warm 28°C (82°F), bringing an average temperature of 14°C (57°F). Despite the pleasant warmth, the month experiences significant precipitation of 121 mm (4.8 in) over 16 days, with an average humidity of 82%. In stark contrast, November sees a dramatic drop in temperatures, with lows reaching a frigid -23°C (-10°F) and daytime highs averaging around 14°C (58°F), culminating in an average of -2°C (29°F). November also receives 98 mm (3.8 in) of precipitation over 14 days, accompanied by higher humidity at 89%. For more specifics about this time of year, you can check out Sierre weather in November.

In July, the weather is notably warmer, with average temperatures around 14°C (57°F) and highs reaching up to 28°C (82°F). The humidity is relatively high at 82%, and the month experiences about 121 mm (4.8 in) of precipitation over 16 days. In stark contrast, December brings much colder conditions, with average temperatures dropping to -8°C (18°F) and maximums of only 7°C (45°F). During this month, precipitation rises to 188 mm (7.4 in), also spread over 16 days, and humidity increases to 91%. For more details on December's conditions, you can visit Sierre weather in December.

Compare Sierre's Climate with Cities Worldwide

Conclusion: What to Expect From July Weather in Sierre

In July, Sierre experiences a dynamic shift in weather, offering warmer temperatures and increased humidity that stand out from other months. With maximum temperatures soaring up to a pleasant 28°C, the summer sun invites outdoor activities, while the average temperature provides a comfortable backdrop for sightseeing. However, July also sees a fair share of rain, averaging 121 mm across about half the month, which adds an element of unpredictability. Those visiting during this vibrant month should be prepared for the occasional shower but can also look forward to lush landscapes and stunning mountain views. For a deeper dive into what to expect throughout the year, explore Sierre Climate.