Last updated: August 27, 2025
In July, Phra Nakhon Si Ayutthaya experiences a tropical climate characterized by high temperatures and significant rainfall. With maximum temperatures soaring up to 38°C (101°F) and an average of 29°C (85°F), the heat is palpable, making it essential to stay hydrated. Minimum temperatures hover around 25°C (77°F), providing slight relief during the evenings. However, the month also sees substantial precipitation, with a total of 179 mm (7.1 in) falling over 26 days, contributing to a humidity level of around 80%. Visitors should be prepared for persistent rain and muggy conditions typical of this vibrant season in Thailand.
In July, Phra Nakhon Si Ayutthaya experiences warm and humid conditions typical of Thailand’s rainy season. With minimum temperatures hovering around 25°C (77°F), the nights remain comfortably warm. The average temperature reaches approximately 29°C (85°F), providing a pleasant backdrop for exploring the city's rich historical sites. Though daytime can still see highs of 38°C (101°F), a slight drop from the scorching peaks of previous months, July’s warmth is often accompanied by refreshing rains, causing a lush greening of the landscape. This delightful combination makes July a vibrant time to visit, where travelers can appreciate both the natural beauty and cultural heritage of this UNESCO World Heritage site.
In July, Phra Nakhon Si Ayutthaya experiences a significant surge in precipitation, recording 179 mm (7.1 in) of rain across 26 days. This marks the peak of the rainy season, following a progressive increase in rainfall from the earlier months—most notably May and June, which also see substantial precipitation. The sharp rise in July not only exceeds the June total but also sets the stage for a wetter August and September, indicating a clear trend of increasing rainfall as the monsoon gains momentum. This pattern underscores the region's transition into its most humid and vibrant phase of the year, where the lush landscapes thrive under the generous downpours.
In July, Phra Nakhon Si Ayutthaya experiences a significant increase in humidity, averaging around 80%. This marks a continuation of the rising trend that began in May, with humidity climbing sharply from 76% in May to 83% in June. The summer months in this region are notably humid, with August peaking even higher at 85%. As the rainy season approaches, humidity levels typically remain elevated, creating a sultry atmosphere that is characteristic of the region during this time. Following July, humidity begins to gradually decline in September, reflecting a seasonal shift that will continue into the later months of the year.
In July, visitors to Phra Nakhon Si Ayutthaya, Thailand will experience a UV Index of 13, categorizing it as extreme with a burn time of just 10 minutes. This trend of elevated UV levels is consistent throughout the summer months, maintaining an intense exposure category from February through August. Whether you’re exploring ancient temples or enjoying outdoor activities, it’s essential to remain vigilant about sun protection during this period of peak UV intensity. As the year progresses, humidity peaks and temperatures soar, yet the UV Index shows only minor fluctuation, ensuring that precautions are necessary well into the fall. For detailed insights on UV levels and safety tips, check out Phra Nakhon Si Ayutthaya UV Index.
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In July, Phra Nakhon Si Ayutthaya enjoys about 288 hours of sunshine, marking a subtle dip from the sunlit peak of 333 hours in March but still holding on to the vibrant warmth characteristic of the Thai summer. As the months progress, sunlight gradually diminishes, with July sandwiched between the lush greenery of May and the cooler rain clouds of August. This slight decrease is a gentle reminder of the seasonal shift, as travelers can still savor the enchanting beauty of this historical city, basking in ample daylight while exploring its stunning temples and rich heritage.
In Phra Nakhon Si Ayutthaya, the month of July typically sees low likelihood of sunny weather, with only a 10% chance of clear skies. This significant decline follows a trend of diminishing sunshine from the hotter months of April through June, where sunny days drop sharply. The general pattern indicates that as the rainy season peaks, the chances of enjoying a sunny July are quite slim, contrasting with the brighter days witnessed earlier in the year, such as February's 79% chance. Thus, visitors should prepare for the possibility of overcast skies and rain during their July excursions.
In Phra Nakhon Si Ayutthaya, Thailand, the rhythm of daylight reveals a fascinating trend throughout the year. From January to February, residents enjoy a consistent 11 hours of daylight, marking the beginning of the year with gentle, shorter days. As spring approaches in March, daylight gradually increases to 12 hours, a duration that remains steady from April through July. This sustained period of 12 hours highlights the balance of light during the warm summer months, encouraging outdoor activities and vibrant local culture. The pattern continues into August and September, where daylight remains unwaveringly at 12 hours. However, as autumn sets in with October, daylight begins to recede back to 11 hours, leading into the shorter days of November and December. This cyclical dance of daylight provides a beautiful backdrop to life in Ayutthaya, influencing both the environment and the daily rhythms of its inhabitants.
In July, the winds in Phra Nakhon Si Ayutthaya pick up slightly with an average speed of 2.7 m/s (6 mph), showcasing a refreshing shift from the milder currents experienced earlier in the year. Following a breezy June which peaked at 3.0 m/s (7 mph), July's wind speed remains robust, indicating a steady summer rhythm. This moderate breeze not only offers a respite from the tropical heat but also aligns with the overall trend of increasing wind speeds through the mid-year months. As the province transitions into August, we can anticipate the winds to taper down slightly but still maintain a pleasant consistency that characterizes the warm season.
Weather in Phra Nakhon Si Ayutthaya varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Phra Nakhon Si Ayutthaya, focusing on differences in temperature, rainfall, humidity, and UV levels.
In July, the weather is notably hot and humid, with average temperatures around 29°C (85°F) and maximum highs reaching up to 38°C (101°F). This month also experiences significant rainfall, with precipitation occurring on 26 days, totaling 179 mm (7.1 in) and an average humidity level of 80%.
In contrast, January offers a more temperate climate, featuring a lower minimum temperature of 16°C (61°F) and an average of 27°C (81°F), peaking at 36°C (96°F). Rainfall is minimal during this month, with only 17 mm (0.7 in) recorded over just 3 days, resulting in a much drier atmosphere with humidity at 50%. For more details on January's weather, you can visit Phra Nakhon Si Ayutthaya weather in January.
In comparing the weather in July and February, July tends to be significantly warmer and more humid. With average temperatures reaching 29°C (85°F) and a maximum of 38°C (101°F), July also experiences a substantial amount of rainfall, totaling 179 mm (7.1 in) across 26 days. In contrast, February has a milder climate, with average temperatures around 28°C (83°F) and a peak of 37°C (98°F). Additionally, February sees minimal rainfall, with only 12 mm (0.5 in) over just 3 days, and lower humidity at 47%. For more detailed information, you can check Phra Nakhon Si Ayutthaya weather in February.
When comparing the weather in July and March, July tends to be significantly more humid and rainy. July has an average temperature of 29°C (85°F), with humidity levels around 80% and rainfall totaling 179 mm (7.1 in) across 26 days. In contrast, March showcases a slightly higher average temperature of 30°C (86°F), but with much lower humidity at 41% and only 47 mm (1.8 in) of precipitation over just 5 days. This makes March a drier and more comfortable month compared to the heavy rains and humidity characteristic of July. For more detailed insights, you can check Phra Nakhon Si Ayutthaya weather in March.
When comparing the weather in July and April, it's evident that both months bring distinct characteristics. July has a minimum temperature of 25°C (77°F) and an average of 29°C (85°F), with maximum temperatures reaching 38°C (101°F). This month also sees significant precipitation, totaling 179 mm (7.1 in) over 26 days, contributing to a high humidity level of 80%. In contrast, April features a lower minimum temperature of 20°C (68°F) and a higher average of 31°C (87°F), with maximum temperatures peaking at 40°C (104°F). Precipitation during April is notably less, with 100 mm (4.0 in) across 15 days and a much lower humidity of 51%. For more detailed insights, you can refer to the Phra Nakhon Si Ayutthaya weather in April.
In comparing the weather between July and May, we see some notable differences. July experiences slightly cooler temperatures with a minimum of 25°C and an average high of 29°C, whereas May can reach up to 40°C, with an average temperature of 30°C. Precipitation levels in July are also higher, with 179 mm over 26 days, compared to May’s 166 mm over 21 days. Additionally, July has a humidity level of 80%, slightly higher than May's 76%. For more detailed information about conditions in May, you can check out Phra Nakhon Si Ayutthaya weather in May.
In comparing the weather between June and July, both months feature warm temperatures, with June having a slightly higher average temperature of 30°C (86°F) compared to July's 29°C (85°F). However, July experiences a broader range of temperatures, with a maximum reaching 38°C (101°F) compared to June's peak of 39°C (102°F). Precipitation is more pronounced in July, with 179 mm (7.1 in) falling over 26 days, versus June's 135 mm (5.3 in) over 22 days. Additionally, humidity levels are slightly lower in July at 80%, compared to June's 83%. For more detailed insights into June weather, you can refer to Phra Nakhon Si Ayutthaya weather in June.
In July, temperatures in Phra Nakhon Si Ayutthaya typically range from a minimum of 25°C (77°F) to a maximum of 38°C (101°F), with an average of 29°C (85°F). The month sees considerable rainfall, averaging 179 mm (7.1 in) over 26 days, while the humidity levels hover around 80%.
In comparison, August experiences a similar temperature profile, with minimums of 24°C (76°F) and maximums still reaching 38°C (101°F). However, this month sees a slight increase in precipitation, totaling 194 mm (7.6 in) over 25 rainy days, accompanied by slightly higher humidity at 85%. For more detailed information, you can check the Phra Nakhon Si Ayutthaya weather in August.
July and September present somewhat similar temperatures but differ notably in their precipitation levels and humidity. In July, the minimum temperature hovers around 25°C (77°F), with an average of 29°C (85°F) and a maximum reaching 38°C (101°F). The month experiences significant rainfall, totaling 179 mm (7.1 in) over 26 days, with humidity at 80%. In contrast, September sees only a slight decrease in daily temperatures, with a minimum of 24°C (76°F), an average of 29°C (84°F), and a maximum of 37°C (98°F). However, it is considerably wetter, with 279 mm (11.0 in) of rainfall spread across 25 days and higher humidity levels of 88%. For more detailed information, check out Phra Nakhon Si Ayutthaya weather in September.
In July, the weather is characterized by higher maximum temperatures, reaching up to 38°C (101°F), with an average of 29°C (85°F) and a significant amount of rainfall totaling 179 mm (7.1 in) over 26 days, resulting in high humidity levels of 80%. In contrast, October experiences slightly cooler conditions, with a minimum temperature of 22°C (71°F) and a maximum of 37°C (99°F), while the average remains consistent at 29°C (84°F). However, October sees an increase in total precipitation to 212 mm (8.4 in) across 19 days, coupled with a marginally lower humidity of 79%. For a detailed look at October weather patterns, visit Phra Nakhon Si Ayutthaya weather in October.
In July, the weather is notably warmer, with temperatures ranging from a minimum of 25°C (77°F) to a maximum of 38°C (101°F) and an average of 29°C (85°F). Alongside the high temperatures, July experiences significant rainfall, totaling 179 mm (7.1 in) across 26 days, resulting in high humidity levels of 80%. In contrast, November is milder with temperatures ranging from a minimum of 21°C (70°F) to a maximum of 36°C (97°F), averaging 28°C (83°F). Precipitation drops dramatically to 50 mm (2.0 in) spread over just 8 days, and humidity also decreases to 68%. For more details about the weather conditions in November, visit Phra Nakhon Si Ayutthaya weather in November.
In July, the weather is characterized by high temperatures, with minimums around 25°C (77°F) and average highs reaching 38°C (101°F). The month also experiences significant precipitation, totaling 179 mm (7.1 in) over approximately 26 rainy days, contributing to a high humidity level of 80%. In contrast, December offers a much milder climate, with minimum temperatures of 15°C (60°F) and average highs around 36°C (97°F). Precipitation is minimal in December, totaling just 18 mm (0.7 in) over three days, and the humidity decreases to a more comfortable 59%. For more specific information about December weather in Phra Nakhon Si Ayutthaya, you can refer to Phra Nakhon Si Ayutthaya weather in December.
July in Phra Nakhon Si Ayutthaya brings a noticeable shift in weather, characterized by higher humidity and increased rainfall compared to the preceding months. With daily temperatures averaging around 29°C (85°F) and reaching peaks of 38°C (101°F), the tropical climate becomes quite pronounced. The city typically experiences frequent rain, with precipitation occurring on 26 days during the month, leading to a total of 179 mm (7.1 in) of rainfall. This contrast not only enhances the lushness of the region but also contributes to the vibrant atmosphere of Ayutthaya. For a more in-depth look at how the weather patterns shape your visit, check out the detailed guide on Phra Nakhon Si Ayutthaya Climate.