July Weather in Spa, Belgium

Last updated: August 21, 2025

July in Spa, Belgium, presents a delightful blend of warm temperatures and refreshing occasional rain. With a maximum temperature soaring to 38°C (101°F), the month brings an average of 18°C (64°F), ensuring plenty of sunshine for outdoor enthusiasts. However, visitors should be prepared for 12 days of rain throughout the month, contributing to a total precipitation of 97 mm (3.8 in). High humidity levels standing at 72% can make the warm days feel even more sultry. Whether enjoying the thermal spas or exploring the picturesque landscapes, Spa in July offers a unique and vibrant atmosphere amidst its variable weather.

July Temperature in Spa

In July, Spa, Belgium, experiences its warmest temperatures, showcasing a striking summer ambiance. With minimums around 7°C (44°F) and average highs reaching a sizzling 38°C (101°F), it’s a month that invites both locals and tourists to relish the outdoors. The average temperature settles comfortably at 18°C (64°F), making it an ideal time for leisurely strolls or enjoying the pristine nature that Spa is renowned for. This is a noteworthy contrast to the preceding months, where temperatures steadily climbed, highlighting July as the pinnacle of warmth in the annual cycle. Whether you're basking in the sun or exploring the lush surroundings, July's balmy climate perfectly encapsulates the beauty of summer in this charming Belgian town.

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

The chart illustrates July temperature patterns in Spa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Spa, 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).
JanFebMarAprMayJunJulAugSepOctNovDec363943485463646457514339
Data source: Temperature data for Spa generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

July Precipitation in Spa

In July, Spa, Belgium experiences a moderate precipitation level of 97 mm (approximately 3.8 in), accompanied by 12 rainy days throughout the month. This amount is slightly above the average for the preceding months, highlighting July's role as a transitional period into the wetter autumn season. While the rainfall in July is more substantial than the drier spells of April (45 mm) and May (81 mm), it is less than the peaks seen in January (100 mm) and March (108 mm). The consistent rainfall pattern across the summer months, notably the proximity of July’s figures to June's (91 mm), suggests a steady climate that supports lush greenery, making Spa a picturesque location during this season. As the month concludes, the presence of moisture lays the groundwork for the transitional shift into August, which tends to see a slight decrease in precipitation.

July Precipitation Trends in Spa

The chart displays monthly precipitation patterns in Spa, 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 Spa, July typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec100911084581919783749671139
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

July Humidity in Spa

In July, Spa, Belgium, experiences a subtle retreat in humidity, with levels dipping to 72%. This marks a continuation of the annual decline in moisture, as the summer months deliver a reprieve from the higher humidity found in the earlier part of the year. After starting the year with a humid 91% in January, the region gradually sees moisture levels decrease, reaching their annual low in July. Following this trend, August will likely maintain similar conditions, with humidity slightly lower at 71%. As summer transitions into autumn, Spa will witness humidity levels rising again, emphasizing the region's characteristic seasonal fluctuations. Overall, July offers a refreshing break from the dampness, making it an ideal time for outdoor activities in this picturesque town.

July Average Humidity in Spa

This chart illustrates the average monthly humidity levels in Spa, 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 Spa is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%87%84%77%74%72%71%81%88%91%92%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Spa

July in Spa, Belgium witnesses a consistent UV Index of 8, indicating a very high exposure category. This level of UV intensity, similar to June, means that sunburn can occur in just 15 minutes of unprotected sun exposure. The trend from earlier months shows a significant increase in UV levels starting from May, where the Index spiked from a moderate rating to very high. As we move into August, the UV Index slightly decreases to 7, signaling a shift in intensity as summer progresses. To stay safe in the sun and enjoy the beautiful weather, it's crucial to be mindful of these ratings and take appropriate sun safety measures during July. For more details, visit Spa UV Index.

Maximum UV Index Levels in Spa for July

The chart shows the monthly maximum UV Index (UVI) for Spa 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 Spa typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234588876421
Data source: Spa 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 Spa

In Spa, Belgium, July shines as a delightful peak of sunshine, boasting an impressive 407 hours of sunlight. This marks a slight increase from June's already generous 405 hours, showcasing the summer’s embrace as the days stretch longer and brighter. Following a steady climb from the winter months, where daylight barely reaches 112 hours in January, the sunny streak during July reflects a vibrant pattern of warmth and light that carries through the summer. Although a drop in sunshine is expected in August with 382 hours, the light-filled July serves as a spectacular reminder of the lively season. Overall, the trends illustrate a brilliant transition from the cold grayness of early winter to the radiant glow of midsummer, painting Spa as a perfect summer retreat.

Monthly Sunshine Duration in Spa: July Highlighted

The July sunshine duration represents the total number of hours Spa 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.
JanFebMarAprMayJunJulAugSepOctNovDec112h199h266h346h396h405h407h382h319h240h183h124h
Data source: Spa July Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Spa During July

In Spa, Belgium, July brings a moderate 32% chance of sunny weather, aligning closely with June's and exceeding the more temperate conditions of May. This trend reveals a slight dip in sunny days as summer progresses into August, which experiences a further decline to 28%. Notably, the likelihood of sunshine in July is a welcome sight compared to the bleak winter months, where January sees only a 7% chance. Overall, while July offers some promising sunny opportunities, it’s wise to remain prepared for the typical variability of Belgian weather as the summer unfolds.

Percentage of Sunny Days in July in Spa

The chart illustrates the percentage of sunny days in Spa 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 Spa experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec7%32%40%43%30%31%32%28%38%28%22%14%
Data source: Spa July chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Spa in July

In July, Spa, Belgium bask in approximately 15 hours of daylight, offering a perfect blend of sunlit hours to enjoy the lush landscapes and outdoor activities. This month showcases a slight decline from the preceding 16 hours in June, yet remains vibrant with ample time for exploration and relaxation. As the days gradually shorten into August with 14 hours of daylight, it highlights a consistent trend of longer days in the heart of summer, inviting locals and visitors alike to embrace the warmth and charm of this picturesque destination. The gradual tapering of daylight reminds us of the cyclic nature of the year, transitioning from the long, sun-drenched days of late spring and summer into the cozy, darker months ahead.

Average Daylight Hours in Spa for July

The chart illustrates the variation in daylight duration in Spa throughout the year, with July highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 31m10h 2m11h 55m13h 50m15h 30m16h 22m15h 55m14h 25m12h 34m10h 39m8h 57m8h 2m
Data source: Spa daylight hours, calculated by summing the hours between sunrise and sunset for each day.

July Winds in Spa

In July, Spa, Belgium experiences a gentle breeze with an average wind speed of 3.4 m/s (8 mph). This marks a slight increase from June's calm, where the winds settled at just 2.8 m/s (6 mph). Following this trend, July's winds provide a refreshing respite from the summer warmth, positioning it comfortably between the spring's variable breezes and the blustery gusts often seen in autumn. Interestingly, August sees a minor uptick in wind speed, aligning closely with July. Overall, while the summer months typically feature less wind, the subtle fluctuations hint at an evolving landscape that perfectly complements Spa's serene atmosphere.

Average July Wind Speed in Spa

The chart displays monthly wind speed patterns in Spa, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.44.74.13.34.52.83.4 m/s3.52.84.53.34.2
Data source: Spa July wind data, generated using information from the Copernicus Climate Change Service.

How July Weather in Spa Compares to Other Months

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

The weather in July contrasts significantly with that of January. In July, temperatures can range from a cool 7°C (44°F) at night to a scorching 38°C (101°F) during the day, with an average of 18°C (64°F). Conversely, January sees much colder conditions, with temperatures ranging from a biting -12°C (10°F) to a mild 12°C (54°F), averaging around 2°C (36°F). While July experiences relatively high humidity levels at 72%, January's humidity peaks at 91%, contributing to the crisp, cold atmosphere. Both months receive a similar amount of precipitation—around 100 mm—though July has fewer rainy days, with 12 compared to January's 15. For a more detailed look at the January climate, visit Spa weather in January.

July and February present strikingly different weather conditions. In July, temperatures range from a chilly 7°C (44°F) at night to a scorching 38°C (101°F) during the day, with an average of 18°C (64°F). The month experiences 97 mm (3.8 in) of precipitation over 12 days, and humidity levels hover around 72%. In contrast, February features much colder temperatures, with minimums dropping to -11°C (13°F), and even at its warmest, the average max is only 20°C (68°F), giving an average of 4°C (39°F). This month sees slightly less precipitation at 91 mm (3.6 in) over 13 days, but high humidity of 90% makes it feel even colder. For a deeper look into what to expect during this wintry month, consider checking out Spa weather in February.

When comparing the weather in July and March, notable differences emerge. July features a wide temperature range, with minimums around 7°C (44°F) and maximums soaring up to 38°C (101°F), resulting in an average of 18°C (64°F). Humidity is moderate at 72%, and rainfall is significant, totaling 97 mm (3.8 in) across 12 days. In contrast, March experiences much cooler temperatures, with minimums dropping as low as -12°C (10°F) and maximums reaching only 22°C (72°F), leading to a chilly average of 6°C (43°F). The month sees slightly more precipitation at 108 mm (4.2 in) over 16 days, along with higher humidity levels at 87%. For those interested in what Spa weather looks like in March, more detailed information can be found here: Spa weather in March.

July and April exhibit striking differences in weather characteristics. In July, temperatures can soar to a maximum of 38°C (101°F), with an average of 18°C (64°F), while April's temperatures are milder, peaking at 26°C (79°F) with an average of 9°C (48°F). Precipitation is more frequent in July, with 97 mm (3.8 in) recorded over 12 days, compared to April’s 45 mm (1.8 in) over 9 days. Additionally, July has a lower humidity level of 72% than April's more humid 84%, making April feel quite damp and cool in comparison. For more specific insights on weather conditions during this month, check out Spa weather in April.

When comparing the weather in May and July, notable differences emerge. July typically boasts a much wider temperature range, with minimums around 7°C (44°F) and maximums soaring to 38°C (101°F), resulting in an average of 18°C (64°F). In contrast, May starts cooler with minimum temperatures dipping to -1°C (31°F) and maximums reaching 30°C (87°F) for an average of 12°C (55°F). Precipitation levels are slightly higher in July, totaling 97 mm (3.8 in) over 12 days, whereas May records 81 mm (3.2 in) spread across 15 days. Humidity levels are also noteworthy, with July at 72% and May slightly higher at 77%. For those interested in more detailed insights, check out Spa weather in May.

In comparing the weather between June and July, July tends to be warmer, featuring a minimum temperature of 7°C (44°F) and a maximum of 38°C (101°F), with an average temperature rising to 18°C (64°F). In contrast, June sees slightly cooler temperatures, with a minimum of 6°C (43°F) and a maximum of 33°C (91°F), resulting in an average of 17°C (63°F). Interestingly, despite July being warmer, it also has higher precipitation at 97 mm (3.8 in) over 12 days, compared to June's 91 mm (3.6 in) across 13 days. Additionally, humidity levels remain high in both months, though July experiences a slightly lower humidity at 72% compared to June's 74%. For more detailed information about the weather in June, you can refer to Spa weather in June.

In comparing the weather of July and August, we see some notable similarities and differences. Both months have the same average temperature of 18°C (64°F), but July experiences a wider temperature range with a maximum of 38°C (101°F) compared to August's cap of 35°C (95°F). July also has more precipitation with 97 mm (3.8 in) over 12 days, while August sees slightly less rainfall at 83 mm (3.3 in) across 16 days. Additionally, humidity levels are quite comparable, with July at 72% and August at 71%. For more detailed information, you can check Spa weather in August.

In July, the weather tends to be warmer, with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 38°C (101°F) and an average of 18°C (64°F). The month experiences significant rainfall, with 97 mm (3.8 in) of precipitation over 12 days and a humidity level of 72%. In contrast, September experiences cooler temperatures, with a minimum of 2°C (36°F), an average of 14°C (58°F), and a maximum of 32°C (90°F). It also sees less precipitation, totaling 74 mm (2.9 in) over 10 days, along with slightly higher humidity at 81%. Overall, July is characterized by its heat and moisture, while September offers a more temperate climate with less rain. For more specific weather details, you can check Spa weather in September.

In comparing the weather of July and October, we see significant shifts in temperature and humidity. July boasts a much warmer range, with temperatures reaching as high as 38°C (101°F) and an average of 18°C (64°F). In contrast, October's temperatures are considerably cooler, with maximums of 24°C (75°F) and an average of 11°C (52°F).

Additionally, while both months experience similar total precipitation—around 96-97 mm (3.8 in)—October has slightly more rainy days, with 15 days of precipitation compared to July's 12. The humidity also rises in October to 88%, compared to July’s relatively lower 72%. For more details about October weather specifically, you can check Spa weather in October.

July and November present stark contrasts in weather conditions. In July, temperatures range from a minimum of 7°C (44°F) to a scorching maximum of 38°C (101°F), with an average of 18°C (64°F). The month experiences significant precipitation, totaling 97 mm (3.8 in) over about 12 days, and humidity levels average 72%. In comparison, November is much colder, with temperatures dipping as low as -4°C (24°F), and an average of just 6°C (43°F), reaching a maximum of 18°C (64°F). While it sees less rainfall at 71 mm (2.8 in), humidity is notably higher at 91%, creating a damp atmosphere. For more details, check out Spa weather in November.

In July, the weather is much warmer, boasting a temperature range from a cool 7°C (44°F) to a scorching 38°C (101°F), with an average of 18°C (64°F). Despite the high temperatures, the month sees relatively moderate precipitation of 97 mm (3.8 in) over 12 days and a humidity level of 72%. In contrast, December experiences a much colder climate, where temperatures drop to a minimum of -5°C (23°F) and only reach a maximum of 14°C (57°F), with an average of just 4°C (39°F). Additionally, December is characterized by higher precipitation levels of 139 mm (5.5 in) spread over 21 days and a notably higher humidity of 92%. For more insights on December's weather conditions, you can refer to Spa weather in December.

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Conclusion: What to Expect From July Weather in Spa

July in Spa presents a striking contrast to the cooler months, with its warm temperatures and high humidity creating a vibrant summer atmosphere. While the average temperature reaches a comfortable 18°C, it can soar to a sizzling 38°C on peak days, making it the warmest month of the year. However, visitors should be prepared for the occasional rain, as July experiences about 12 days of precipitation, totaling 97 mm. This mix of warmth and rainfall contributes to Spa’s lush greenery, enhancing its charm. For a more detailed look at the annual patterns that define this beautiful locale, visit Spa Climate.