July Weather in Dehiwala-Mount Lavinia, Sri Lanka

Last updated: March 19, 2025

Experience the tropical charm of Dehiwala-Mount Lavinia in July, where the weather is characterized by warm and humid conditions. With a maximum temperature reaching 30°C (87°F) and an average of 28°C (82°F), visitors can expect a balmy atmosphere. The month is marked by significant rainfall, accumulating 188 mm (7.4 in) over 26 days, contributing to the lush surroundings. The high humidity level of 82% enhances the feeling of warmth, making it ideal for those who enjoy a vibrant, tropical climate. Whether you're exploring the coastal beauty or savoring local cuisine, July in Dehiwala-Mount Lavinia promises a rich sensory experience.

July Temperature in Dehiwala-Mount Lavinia

In July, Dehiwala-Mount Lavinia experiences pleasant tropical temperatures, with a minimum of around 25°C (77°F), an average of 28°C (82°F), and a maximum reaching 30°C (87°F). This pattern reflects a consistent warmth that characterizes the region throughout the year, especially in the surrounding months. Comparatively, July's temperatures remain stable, showing little fluctuation from the preceding months of June and the following month of August. The mild evenings and warm days create an inviting atmosphere perfect for exploring this vibrant beachside town, making it an ideal time to enjoy outdoor activities and soak in the natural beauty of this part of Sri Lanka.

July Weather in Dehiwala-Mount Lavinia: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Dehiwala-Mount Lavinia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec818282838382828181818181
Data source: Temperature data for Dehiwala-Mount Lavinia 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 Dehiwala-Mount Lavinia

In July, Dehiwala-Mount Lavinia experiences a significant dip in precipitation compared to the preceding months, with a total of 188 mm (7.4 in) of rainfall over 26 days. This month is marked by a shift from June's heavy downpour of 269 mm (10.6 in) and showcases the region's transitional weather patterns as the peak monsoon season slows down. Despite the reduction in volume, July still delivers ample rainfall, contributing to the area's lush landscapes, while setting the stage for August, which typically brings a rise in precipitation to 205 mm (8.1 in) over 27 days. Overall, July serves as a reminder of the monsoon's ebbing energy, balancing hydration with less intense storms.

July Precipitation Trends in Dehiwala-Mount Lavinia

The chart displays monthly precipitation patterns in Dehiwala-Mount Lavinia, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5958118133302270188205238343302199
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Dehiwala-Mount Lavinia

In July, Dehiwala-Mount Lavinia experiences a humidity level of 82%, mirroring the trend observed in June and aligning closely with the higher humidity levels of August at 83%. This mid-year peak indicates that the region is firmly in the grip of its tropical climate, where the humidity remains consistently high throughout the summer months. Notably, the humidity gradually increases from a relatively lower 73% in February, showcasing a steady rise as the year progresses, with only slight fluctuations. With July's humidity sitting above the annual average, residents and visitors alike can expect an enveloping warmth and a lush, vibrant environment that characterizes Sri Lankan coastal weather during this time.

July Average Humidity in Dehiwala-Mount Lavinia

This chart illustrates the average monthly humidity levels in Dehiwala-Mount Lavinia, with July's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how July's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec77%73%74%74%76%82%82%83%82%81%80%80%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Dehiwala-Mount Lavinia

In July, Dehiwala-Mount Lavinia experiences a UV Index of 13, categorized as extreme, which means that sun protection is essential as skin can burn within just 10 minutes of unprotected exposure. Following a trend from the preceding months, July reflects a slight dip from the peak observed in April, yet it remains consistent with the high UV levels typical of the region during this time of year. The overall pattern indicates that from January through June, the UV Index remains between 12 and 15, maintaining an extreme exposure risk. As the year progresses, the UV Index gradually shifts downward, offering a slight respite as the region heads toward its annual decline in solar intensity. For more details, visit the Dehiwala-Mount Lavinia UV Index.

Maximum UV Index Levels in Dehiwala-Mount Lavinia for July

The chart shows the monthly maximum UV Index (UVI) for Dehiwala-Mount Lavinia 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.
JanFebMarAprMayJunJulAugSepOctNovDec121314151412131414131110
Data source: Dehiwala-Mount Lavinia 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 Dehiwala-Mount Lavinia

In July, Dehiwala-Mount Lavinia basks in a generous 332 hours of sunshine, making it a splendid time to enjoy the coastal beauty of Sri Lanka. This bright month follows a steady pattern of sunlight throughout the year, with February and March leading the way with impressive totals of 310 and 336 hours respectively. As summer peaks, the sun's presence remains strong, as indicated by the 318 hours in June, slightly tapering off into August with 327 hours. This consistent brightness reveals a tropical climate that invites both relaxation and adventure, highlighting the allure of July as a vibrant month in the sun-kissed landscape of Dehiwala-Mount Lavinia.

Monthly Sunshine Duration in Dehiwala-Mount Lavinia: July Highlighted

The July sunshine duration represents the total number of hours Dehiwala-Mount Lavinia 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.
JanFebMarAprMayJunJulAugSepOctNovDec271h310h336h334h314h318h332h327h307h305h283h312h
Data source: Dehiwala-Mount Lavinia July Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Dehiwala-Mount Lavinia During July

In Dehiwala-Mount Lavinia, July experiences a notable dip in sunny weather, with only a 16% chance of sunshine. This pattern aligns with the preceding months of June and May, which also witness low probabilities of clear skies, suggesting that the area tends to experience wetter conditions during the mid-year. As the year progresses, the likelihood of sunshine gradually increases again towards the end of the year, peaking in February and December with chances rising above 50%. Overall, while July's prospects for sunny days may be limited, the pleasant climate that follows can make this coastal region a delightful destination for those seeking a tropical escape later in the year.

Percentage of Sunny Days in July in Dehiwala-Mount Lavinia

The chart illustrates the percentage of sunny days in Dehiwala-Mount Lavinia 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 Dehiwala-Mount Lavinia experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec20%51%32%45%16%22%16%9%19%16%15%54%
Data source: Dehiwala-Mount Lavinia July chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Dehiwala-Mount Lavinia in July

In July, Dehiwala-Mount Lavinia enjoys a consistent 12 hours of daylight, reflecting a trend established in the previous months. This duration mirrors that of June and aligns with the extended daylight hours seen from March through June. As the region transitions from the vibrant summer months into the later part of the year, daylight begins to diminish slightly, paving the way for shorter days in October. Overall, the area's daylight patterns reveal a fascinating stability during mid-year, providing ample time for outdoor activities and vibrant communal life.

Average Daylight Hours in Dehiwala-Mount Lavinia for July

The chart illustrates the variation in daylight duration in Dehiwala-Mount Lavinia throughout the year, with July highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 45m11h 53m12h 4m12h 15m12h 25m12h 29m12h 27m12h 19m12h 8m11h 57m11h 47m11h 43m
Data source: Dehiwala-Mount Lavinia daylight hours, calculated by summing the hours between sunrise and sunset for each day.

July Winds in Dehiwala-Mount Lavinia

In July, Dehiwala-Mount Lavinia enjoys a refreshing average wind speed of 5.8 m/s (13 mph), marking it as one of the breezier months of the year. This notable increase is part of a gradual upward trend from the milder conditions of the earlier months, particularly April and March, where winds hovered around 2.0 to 2.9 m/s. Following June's gusty beginnings, July not only sustains but slightly elevates wind speeds, continuing the lively atmosphere of the coastal area. As the year progresses into August, wind speeds remain consistent, ensuring that the July breezes carry on, providing a perfect backdrop for beach activities and leisurely seaside strolls during this vibrant season.

Average July Wind Speed in Dehiwala-Mount Lavinia

The chart displays monthly wind speed patterns in Dehiwala-Mount Lavinia, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.24.32.02.94.55.35.8 m/s5.35.14.24.13.2
Data source: Dehiwala-Mount Lavinia July wind data, generated using information from the Copernicus Climate Change Service.

How July Weather in Dehiwala-Mount Lavinia Compares to Other Months

The weather in Dehiwala-Mount Lavinia changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of July's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Dehiwala-Mount Lavinia and find detailed weather information for every month.

In comparing the weather between July and January, it is evident that July experiences a higher level of humidity and significant rainfall, with an average temperature of 28°C (82°F) and precipitation amounting to 188 mm (7.4 in) over 26 days. Conversely, January features slightly cooler conditions, with temperatures averaging 27°C (81°F) and only 59 mm (2.3 in) of rainfall occurring over just 7 days. This results in a more pleasant and less humid atmosphere during January, as reflected in the lower humidity level of 77%. For more detailed insights, you can check Dehiwala-Mount Lavinia weather in January.

When comparing the weather in July and February, both months experience warm temperatures, but July tends to be more humid and wetter. In July, the minimum temperature averages around 25°C (77°F), while February has a slightly lower minimum at 23°C (73°F), although February boasts a higher maximum temperature of 33°C (91°F) compared to July’s 30°C (87°F). Additionally, July receives significantly more rainfall, with an average of 188 mm (7.4 in) over 26 days, contrasting sharply with February’s 58 mm (2.3 in) over only 10 days, highlighting the drier climate during the latter month. The humidity levels also differ, with July at 82% and February at a more comfortable 73%. For more detailed insights, you can check out the Dehiwala-Mount Lavinia weather in February.

In comparing the weather of July and March, we see some notable differences. July tends to be more humid, with an average humidity of 82% compared to March’s 74%. Although both months share a similar minimum temperature of 25°C (77°F) and average temperature of 28°C (82°F), March experiences a higher maximum temperature of 33°C (91°F) compared to July's 30°C (87°F). Additionally, July is significantly wetter, receiving 188 mm (7.4 in) of precipitation over 26 days, while March only sees 118 mm (4.6 in) over 19 days. For more details on March weather conditions, you can check Dehiwala-Mount Lavinia weather in March.

When comparing the weather in July and April, both months display warm temperatures, but with some notable differences. In July, the minimum temperature is consistently 25°C and the average hovers around 28°C, while the maximum reaches 30°C. In contrast, April also sees a minimum of 25°C, an average temperature of 28°C, but boasts a higher maximum of 32°C. Precipitation is more frequent in July, with 188 mm falling over 26 days at a humidity level of 82%, compared to April’s 133 mm over 25 days and a lower humidity of 74%. For more detailed insights, you can refer to Dehiwala-Mount Lavinia weather in April.

July and May exhibit similar temperature ranges, with both months featuring minimum temperatures around 25°C (77°F) and average temperatures hovering around 28°C (82°F). However, May tends to be slightly warmer during the day with maximum temperatures reaching 32°C (90°F), compared to July's peak of 30°C (87°F). When it comes to precipitation, May surpasses July significantly, with 302 mm (11.9 in) of rainfall over 29 days, whereas July experiences 188 mm (7.4 in) spread across 26 days. Additionally, May's humidity level is a bit lower at 76%, compared to July's 82%, resulting in a somewhat more uncomfortable feel during the latter month. For more detailed insights, you can check Dehiwala-Mount Lavinia weather in May.

In comparing the weather between June and July, both months exhibit similar temperature ranges with minimums around 25°C (77°F), average highs of 28°C (82°F), and maximums peaking at 30°C (87°F). However, July experiences less rainfall, with 188 mm (7.4 in) of precipitation over 26 days, while June is wetter, receiving 269 mm (10.6 in) across 28 days. Despite their shared humidity level of 82%, July offers slightly more drier conditions than June. For more details, you can check Dehiwala-Mount Lavinia weather in June.

In comparing the weather conditions of July and August, both months exhibit warm temperatures; however, August is slightly cooler on average with a maximum of 29°C (85°F) compared to July's 30°C (87°F). While the minimum temperatures remain consistent at 25°C (77°F) for both months, August shows a marginally lower average temperature of 27°C (81°F) compared to July's 28°C (82°F). In terms of precipitation, August experiences a total of 205 mm (8.1 in) over 27 days, which is an increase from July's 188 mm (7.4 in) across 26 days. Humidity levels are also comparable, with August having a slight increase at 83% compared to July's 82%. For more details on the weather in August, you can check Dehiwala-Mount Lavinia weather in August.

In comparing the weather between July and September, both months exhibit similarly warm temperatures, with July recording a minimum of 25°C (77°F) and an average of 28°C (82°F), while September sees a slight drop in the maximum to 30°C (86°F) despite an average temperature of 27°C (81°F). However, September experiences increased precipitation, with 238 mm (9.4 in) over 26 days compared to July's 188 mm (7.4 in) on the same number of rainy days. Humidity remains consistent at 82% for both months, making the air feel quite sultry. For more details on the weather specifics, you can check Dehiwala-Mount Lavinia weather in September.

In comparing July and October weather, both months feature similar temperature ranges, with July showing a minimum of 25°C (77°F) and an average of 28°C (82°F), while October's temperatures are slightly cooler with a minimum of 24°C (76°F) and an average of 27°C (81°F). However, October experiences significantly higher rainfall, accumulating 343 mm (13.5 in) over 29 days, in contrast to July's 188 mm (7.4 in) spread over 26 days. Humidity levels remain quite comparable, with July at 82% and October just slightly lower at 81%. For more detailed information, you can check Dehiwala-Mount Lavinia weather in October.

In comparing the weather between July and November, we find that both months experience similar temperature ranges, with a minimum of 25°C (77°F) in July and 24°C (75°F) in November, and maximum temperatures peaking at 30°C (87°F). However, November tends to be wetter, with higher precipitation levels of 302 mm (11.9 in) compared to July's 188 mm (7.4 in), despite having the same number of rainy days at 26. Humidity remains comparable as well, with July being slightly more humid at 82% compared to November's 80%. For a closer look at November's weather specifics, you can visit Dehiwala-Mount Lavinia weather in November.

In comparing the weather of July and December, both months showcase relatively warm temperatures, with July having a minimum of 25°C (77°F) and an average temperature of 28°C (82°F), while December features a slightly lower minimum of 23°C (74°F) and an average of 27°C (81°F). Interestingly, December records a higher maximum temperature of 31°C (89°F) compared to July's peak of 30°C (87°F). Precipitation is also notable, with July experiencing 188 mm (7.4 in) across 26 days, while December sees a slightly higher total of 199 mm (7.8 in) over 18 days. Humidity levels are relatively comparable, with July at 82% and December at 80%. For more details on the weather in December, you can check the link: Dehiwala-Mount Lavinia weather in December.

Compare Dehiwala-Mount Lavinia's Climate with Cities Worldwide

Conclusion: What to Expect From July Weather in Dehiwala-Mount Lavinia

In July, Dehiwala-Mount Lavinia experiences a notable shift in weather patterns, characterized by a higher humidity and increased precipitation compared to other months. With temperatures averaging around 28°C, this period brings about a more tropical feel, as frequent showers contribute to a lush and vibrant environment. The month is marked by a substantial number of rainy days, making it a contrast to the drier seasons. For those looking to understand the nuances of the region's climate, you can explore more at Dehiwala-Mount Lavinia Climate.