Last updated: August 31, 2025
In July, Port Moresby experiences a warmth that is both inviting and humid, with maximum temperatures peaking at 30°C (86°F) and an average of 25°C (78°F). Despite the pleasant temperatures, the city sees about 45 mm (1.8 in) of rainfall over 8 days, contributing to a high humidity level of 87%. The combination of warmth and moisture creates a tropical atmosphere, making July an intriguing month for both residents and visitors to explore the vibrant landscapes and culture of Papua New Guinea.
In July, Port Moresby experiences a pleasant dip in temperatures, offering a refreshing break as the minimum settles at 20°C (69°F). The average temperature hovers around 25°C (78°F), marking a slight decrease from the warmer months preceding it. With a maximum reaching only 30°C (86°F), this month showcases the city's cooler climate, making it an ideal time for outdoor exploration and enjoying the lush surroundings. As the region transitions from the wet season, July's conditions present a balance of comfort and warmth, perfect for both locals and visitors seeking a mild tropical experience.
In July, Port Moresby experiences a notable dip in precipitation, receiving just 45 mm (1.8 in) of rain over a mere 8 days. This marks a significant decrease from the wet months earlier in the year, where totals often exceeded 200 mm. Following a trend of declining rainfall from June's 63 mm, July heralds the onset of the dryer season, offering residents and visitors a brief respite from the frequent rain showers typical of the preceding months. As the city transitions into August, precipitation begins to pick up slightly again, but July stands out as a month of relative dryness in the tropical climate of Papua New Guinea.
In July, Port Moresby experiences a notable humidity level of 87%, positioned slightly lower than the peak of 88% in May and June. This month marks the transition from the year's highest humidity, suggesting a slight alleviation as the region moves towards the drier months ahead. While the humidity levels remain relatively high during this period, they gradually decline through August and September, hitting a seasonal low of 80% in September. This pattern highlights a generally humid atmosphere that characterizes the Papuan capital, with only a small dip in moisture content as winter sets in, creating a warm and muggy environment throughout the mid-year months.
In July, Port Moresby experiences a notable UV Index of 11, categorized as extreme, with a burn time of just 10 minutes. This month continues the trend of high UV exposure seen throughout the year, particularly from January to June, where values frequently reached up to 16, emphasizing the need for sun protection. Notably, while June marks a slight drop to 10, July sees a resurgence, aligning with the typically intense solar exposure of this tropical region. As the year progresses, residents and visitors alike should stay vigilant against UV radiation, especially with August expected to climb even higher to a UV Index of 13. For more on the UV Index in Port Moresby, check out Port Moresby UV Index.
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In July, Port Moresby basks in a generous 284 hours of sunshine, continuing the trend of impressive daylight that defines the mid-year months. As the days grow longer, sunlight peaks significantly compared to earlier months like January, which only saw 212 hours. This makes July a vibrant time to explore the city's offerings, with sunny skies paving the way for outdoor adventures. Interestingly, the month shows a slight dip from the height of May's 286 hours, but still maintains a robust count that aligns with the region's climatic consistency. With August not far behind at 289 hours, it's clear that this period in Papua New Guinea is a dazzling spectacle of light, beckoning locals and visitors alike to revel in the beauty of the tropics.
In Port Moresby, July marks a significant upswing in the likelihood of sunny weather, with a 35% chance of sunshine gracing the city. This trend follows a steady increase from the cooler, wetter months of April and May, where sunny days are less frequent, rising from 12% in April to 34% in June. As the mid-year arrives, not only does July stand out with its sunny disposition, but it also serves as a precursor to the more favorable weather of November, which boasts the highest chance of sun at 43%. Overall, July emerges as a prime month for those seeking brighter skies in Papua New Guinea, bridging the gap between the rainy season and the start of the drier months ahead.
In Port Moresby, Papua New Guinea, the daylight duration exhibits a consistent rhythm throughout the year, marked by a steady 12 hours of daylight from January to March, inviting long, sunlit days perfect for exploration. As the calendar shifts into April and continues through June, daylight subtly decreases to 11 hours, signaling the transition into the cooler months. This pattern persists into July and August, maintaining a cozy 11-hour daylight before a gradual increase resumes in September and steadily climbs back to 12 hours by October, bringing a return to longer sunny days as the year winds down. Thus, the daylight in Port Moresby reflects a harmonious balance, fluctuating gently with the seasons while providing ample time for both work and leisure.
In July, Port Moresby experiences a gentle breath of air with an average wind speed of 3.5 m/s (8 mph), marking a slight dip from the previous month’s 3.6 m/s (8 mph). This month falls within a transitional period as the winds begin to gather strength in the following months; notably, August sees an uptick to 4.2 m/s (9 mph). This pattern signifies a gradual increase in wind intensity that typically peaks in September at 5.0 m/s (11 mph), aligning with the region's climatic transitions. Thus, while July holds onto relatively calm breezes, the anticipation of stronger gusts in the upcoming months begins to build, inviting both residents and visitors to enjoy the comforting yet brisk conditions that accompany the winter season in Papua New Guinea.
Weather in Port Moresby varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Port Moresby, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in July and January, it is clear that January experiences warmer temperatures and significantly higher precipitation. In July, the temperatures range from a minimum of 20°C (69°F) to a maximum of 30°C (86°F), with an average of 25°C (78°F) and relatively mild humidity levels at 87%. In contrast, January boasts a minimum temperature of 23°C (74°F) and a high of 33°C (91°F), with an average of 27°C (81°F). Additionally, January sees a substantial increase in rainfall, with 276 mm (10.9 in) of precipitation spread over 22 days, compared to July's 45 mm (1.8 in) over just 8 days. For more insights on January weather specifics, check out Port Moresby weather in January.
When comparing the weather in July and February, we notice distinct differences in temperature and precipitation patterns. July typically has milder temperatures, with a minimum of 20°C (69°F) and an average of 25°C (78°F), while February boasts warmer conditions, with a minimum of 23°C (73°F) and an average of 27°C (81°F). Additionally, February experiences significantly higher rainfall, with 200 mm (7.9 in) of precipitation over 21 days, compared to July's 45 mm (1.8 in) across just 8 days. Despite the increased rainfall in February, humidity remains relatively high in both months, registering at 87% in July and 84% in February. For more details on the February weather specifics, you can visit Port Moresby weather in February.
In comparing the weather between July and March, July offers a relatively milder experience with average temperatures ranging from 20°C (69°F) to a maximum of 30°C (86°F). This month sees around 45 mm (1.8 in) of rainfall spread over about 8 days, with humidity levels sitting at 87%. In contrast, March tends to be warmer, with an average temperature range from 23°C (74°F) to a peak of 32°C (89°F), but it is also significantly wetter, receiving 307 mm (12.1 in) of precipitation over 28 days. Humidity in March is slightly lower at 84%. For more detailed information, you can visit Port Moresby weather in March.
In comparing the weather between July and April, one can observe some notable differences. July tends to have slightly lower temperatures, with average values around 25°C (78°F) and a maximum of 30°C (86°F), while April sees a higher minimum temperature of 22°C (72°F) and an average of 26°C (80°F). Precipitation levels also starkly contrast, as July experiences significantly less rain, with only 45 mm (1.8 in) over 8 days, compared to April’s 215 mm (8.5 in) over 24 days. Humidity remains quite similar, with July at 87% and April at 86%. For a detailed look at April's weather, you can visit Port Moresby weather in April.
When comparing the weather in July and May, we can observe several key differences. In July, temperatures range from a minimum of 20°C (69°F) to a maximum of 30°C (86°F), with an average of 25°C (78°F), while May sees slightly warmer temperatures, with a minimum of 22°C (72°F) and a maximum of 31°C (89°F), averaging 26°C (80°F). Precipitation levels also differ significantly; July experiences 45 mm (1.8 in) of rain over 8 days, whereas May has a much higher rainfall of 95 mm (3.8 in) over 13 days. Humidity remains relatively consistent between the two months, with July at 87% and May at 88%. For a deeper look into the specifics of May's climate, you can visit Port Moresby weather in May.
In comparing the weather of June and July, July shows slightly cooler temperatures with a minimum of 20°C and an average of 25°C, whereas June has a minimum of 21°C and an average of 26°C. Both months reached a maximum temperature of 30°C; however, July experienced less precipitation with 45 mm over 8 days compared to June's 63 mm over 9 days. Humidity levels remain quite similar, with July at 87% and June at 88%. For a more detailed look at June's weather, you can visit Port Moresby weather in June.
In July, the weather typically features a minimum temperature of 20°C (69°F), with an average of 25°C (78°F) and a maximum reaching 30°C (86°F). This month also experiences about 45 mm (1.8 in) of precipitation over roughly 8 days and maintains a high humidity level of 87%. In comparison, August shows a slight increase in minimum temperature at 21°C (69°F), while the average and maximum temperatures remain stable at 25°C (78°F) and 30°C (86°F), respectively. However, August sees an increase in precipitation to 58 mm (2.3 in) across 10 days, with humidity slightly easing to 85%. For more detailed information, you can check Port Moresby weather in August.
In comparing the weather between July and September, it is noted that both months share an average temperature of 25°C (78°F) and a maximum temperature peaking at 30°C (86°F to 87°F). However, July experiences a slightly higher minimum temperature of 20°C (69°F), compared to September's 19°C (66°F). Additionally, September sees an increase in precipitation, with 81 mm (3.2 in) over 11 days, in contrast to July's 45 mm (1.8 in) over 8 days. Humidity remains relatively high in both months, but September is slightly less humid at 80% compared to July's 87%. For more detailed information on September weather, please refer to Port Moresby weather in September.
In comparing July and October weather, both months exhibit relatively warm temperatures, but October tends to be slightly warmer overall. In July, the temperatures range from a minimum of 20°C (69°F) to a maximum of 30°C (86°F), with an average of 25°C (78°F) and an average humidity of 87%. Conversely, October features a minimum of 21°C (70°F) and a peak of 31°C (88°F), with an average temperature of 26°C (79°F) and a lower humidity of 81%. However, October also sees a significant increase in precipitation, with 119 mm (4.7 in) spread over 17 days, compared to July's 45 mm (1.8 in) over just 8 days. For a more detailed look at weather patterns in October, you can check out Port Moresby weather in October.
In comparing the weather of July and November, July tends to be slightly cooler, with average temperatures ranging from a minimum of 20°C (69°F) to a maximum of 30°C (86°F). It experiences less precipitation, totaling 45 mm (1.8 in) over about 8 days, and features higher humidity levels at 87%. In contrast, November shows warmer temperatures, with averages between 21°C (69°F) and 33°C (91°F). It also sees more rainfall, with 130 mm (5.1 in) spread over 17 days, although the humidity is lower at 81%. For a more detailed look at this month, check out Port Moresby weather in November.
July and December present contrasting weather patterns in terms of temperature and precipitation. In July, temperatures range from a minimum of 20°C (69°F) to a maximum of 30°C (86°F), with an average of 25°C (78°F) and relatively low precipitation of 45 mm (1.8 in) over 8 days, complemented by high humidity at 87%. In contrast, December sees warmer conditions with temperatures fluctuating from a minimum of 23°C (73°F) to a maximum of 33°C (93°F), averaging 27°C (81°F). However, December is also marked by significantly higher rainfall, accumulating 169 mm (6.7 in) over 22 days, while maintaining a slightly lower humidity level of 83%. For an in-depth look at December's climate specifics, check out Port Moresby weather in December.
In July, Port Moresby's weather promises a comfortable experience with warm temperatures averaging around 25°C and maximums reaching up to 30°C. Unlike the wetter months, July sees a slight decline in precipitation, with about 45 mm falling over just 8 days, creating a relatively drier atmosphere. The humidity remains high at 87%, though the cooler evenings can offer a refreshing escape. This combination makes July a more pleasant time to explore the vibrant culture and stunning landscapes of the region. For more detailed insights, check out Port Moresby Climate.