Last updated: August 31, 2025
June in Port Moresby, Papua New Guinea, presents a warm and humid climate, with average temperatures hovering around 26°C (79°F). Daytime highs can reach a maximum of 30°C (87°F), while nights cool down to a comfortable 21°C (70°F). Rainfall, totaling 63 mm (2.5 in), occurs on about 9 days, contributing to the region's lush vegetation. With a humidity level of 88%, visitors should be prepared for a tropical atmosphere that combines warmth and moisture, making June a vibrant time to experience this bustling capital.
In June, Port Moresby, Papua New Guinea experiences a slight dip in temperatures compared to the preceding months, with minimums reaching 21°C (70°F) and maximums comfortably settling around 30°C (87°F). The average temperature hovers around 26°C (79°F), marking it as a mild month that provides a pleasant escape from the humid heat of earlier in the year. This trend of gradually decreasing temperatures continues into July, hinting at the onset of the cooler dry season. Such moderate conditions make June an ideal time for outdoor activities, as the city enjoys a balance between warmth and comfort, perfect for those looking to explore its vibrant culture and stunning landscapes.
June in Port Moresby marks a noticeable transition in the city's precipitation patterns. With a total of 63 mm (2.5 in) of rainfall over just 9 days, it reflects the onset of drier conditions compared to the previous months. This is a significant drop from May's 95 mm (3.8 in), indicating a shift towards the drier half of the year. The trend of decreasing rainfall continues into July, suggesting that residents can expect more sun-soaked days ahead. As the wet season wanes, June serves as a calm interlude before the relatively dry months of July and August, offering a break for outdoor activities amid the tropical climate of Papua New Guinea.
In June, Port Moresby experiences a notable humidity level of 88%, maintaining the elevated trend observed in the preceding months. The humidity starts its climb from 83% in January, reaching 88% by May, and then plateaus in June. This consistent moisture contributes to the tropical atmosphere, characteristic of the region. As the year progresses, humidity does begin to slightly decrease in July to 87%, foreshadowing a gradual decline that continues into the drier months. Overall, June stands as a pivotal point in the humidity cycle, balancing between the peak of the wet season and the onset of drier conditions to come.
In June, Port Moresby experiences a UV Index of 10, categorizing the sun exposure as very high. This marks a slight decline from the extreme levels seen in the earlier months, where UV indices ranged from 15 to 16, necessitating cautious sun protection with a burn time of just 10 minutes. Interestingly, as the dry season sets in, the burn time in June extends to 15 minutes, offering some respite while still emphasizing the importance of vigilance against sun exposure. As the year progresses towards July and beyond, the UV Index escalates back to extreme levels, reaffirming the need for consistent sun safety practices in this tropical haven. For detailed information, visit Port Moresby UV Index.
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In June, Port Moresby basks in an impressive 271 hours of sunshine, continuing the trend of abundant daylight seen in the preceding months. Following a remarkable May, which boasted the highest hours of sunshine at 286, June maintains a robust brightness, contributing to the city's vibrant atmosphere. As the mid-year approaches, the sunny days gradually increase, with July and August promising even more sunshine, potentially enhancing outdoor activities and local tourism. Overall, the pattern shows a sky full of potential, inviting both residents and visitors to embrace the warm embrace of the Papuan sun.
In June, Port Moresby experiences a notable increase in sunny weather, with the chance of sun reaching 34%. This reflects a broader trend emerging in the months leading up to mid-year; following a moderate 32% in May, June's sunshine likelihood marks a steady rise that continues into July, where it peaks at 35%. This gradual uptick from the relatively lower percentages in the early months—January through April—suggests that as the region transitions toward mid-year, residents and visitors alike can look forward to more bright and sunny days. The trend is particularly striking compared to the later months, where the sunshine likelihood fluctuates again, reminding us of Port Moresby's dynamic weather patterns.
In Port Moresby, Papua New Guinea, the daylight duration experiences a subtle yet noticeable shift throughout the year. From January to March, residents enjoy a consistent 12 hours of daylight, allowing for ample time to engage in outdoor activities. However, as April arrives, there's a slight decline, with daylight dipping to 11 hours, a trend that continues through June and into July and August. This stable pattern of 11 hours suggests a gentle transition into the cooler months. Interestingly, as September rolls in, daylight begins to lengthen again, returning to 12 hours by October and remaining steady through December. This rhythmic cycle of daylight not only influences daily life but also reflects the region's unique climatic changes.
In June, Port Moresby experiences a refreshing average wind speed of 3.6 m/s (8 mph), signaling a delightful shift from the lighter breezes of earlier months. Following the mild winds of April and May, which saw speeds of 2.3 m/s and 4.1 m/s respectively, June's winds seem to strike a balance, offering a gentle yet invigorating atmosphere. This trend of increasing winds continues into July, suggesting a seasonal pattern where the calm of late autumn gives way to more dynamic breezes. As the year progresses, the wind speeds generally trend upwards, peaking in September at 5.0 m/s (11 mph) before tapering off again in the latter months. This transitional phase not only characterizes the June climate but also hints at the vibrant environmental shifts that define Port Moresby's unique maritime climate.
Weather in Port Moresby varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in Port Moresby, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in June and January, it’s clear that both months bring warm temperatures, but with notable differences in precipitation and humidity. June experiences a slightly lower temperature range with a minimum of 21°C (70°F) and a maximum of 30°C (87°F), along with 63 mm (2.5 inches) of rainfall over about 9 days. In contrast, January is hotter, with temperatures ranging from a minimum of 23°C (74°F) to a maximum of 33°C (91°F) and significantly more rainfall totaling 276 mm (10.9 inches) over 22 days. Despite January having higher humidity levels at 83%, June has a notably higher humidity of 88%, contributing to a more tropical feel. For a detailed look at January weather, check out Port Moresby weather in January.
When comparing the weather in June and February, several notable differences can be observed. June experiences milder temperatures with a minimum of 21°C (70°F) and an average of 26°C (79°F), while February is typically warmer, with a minimum of 23°C (73°F) and an average of 27°C (81°F). Additionally, February tends to be wetter, boasting a precipitation level of 200 mm (7.9 in) over 21 days, compared to June's 63 mm (2.5 in) across just 9 days. Notably, humidity levels are slightly higher in June at 88%, compared to February's 84%. For more detailed information about February's weather, you can visit Port Moresby weather in February.
When comparing the weather in June and March, it's clear that both months offer warm temperatures, but with different characteristics. In June, temperatures range from a minimum of 21°C (70°F) to a maximum of 30°C (87°F), with an average of 26°C (79°F). The month receives 63 mm (2.5 in) of precipitation across 9 days and has higher humidity at 88%. In contrast, March is generally warmer, with minimum temperatures of 23°C (74°F) and maximums reaching 32°C (89°F), averaging 27°C (80°F). However, March is also significantly wetter, with 307 mm (12.1 in) of rainfall spread across 28 days, and slightly lower humidity at 84%. For more detailed weather patterns, check out this link: Port Moresby weather in March.
When comparing the weather in April and June, notable differences emerge in both temperature and precipitation. In April, temperatures range from a minimum of 22°C (72°F) to a maximum of 31°C (88°F), with an average of 26°C (80°F). However, this month experiences significantly higher rainfall, accumulating 215 mm (8.5 in) over 24 days, resulting in a humidity level of 86%. In contrast, June sees a slightly lower minimum temperature of 21°C (70°F) and a similar average of 26°C (79°F), but with a higher maximum of 30°C (87°F). Precipitation in June drops to 63 mm (2.5 in) over just 9 days, leading to a higher humidity level of 88%. For further details about April's weather, you can visit Port Moresby weather in April.
In comparing the weather of May and June, we see some notable differences. May has slightly higher temperatures, with a minimum of 22°C (72°F), an average of 26°C (80°F), and a maximum of 31°C (89°F). In contrast, June's temperatures are a bit lower, with a minimum of 21°C (70°F) and a maximum of 30°C (87°F). Precipitation levels also vary; May experiences more rainfall at 95 mm (3.8 in) over 13 days, while June sees a reduction to 63 mm (2.5 in) over 9 days. Both months have consistent humidity at 88%. For more detailed information on May's weather, you can check Port Moresby weather in May.
When comparing the weather in June and July, both months exhibit similar temperature ranges, with June being slightly warmer overall. June boasts a minimum temperature of 21°C (70°F) and an average of 26°C (79°F), while July has a slightly cooler minimum of 20°C (69°F) and an average of 25°C (78°F). Precipitation levels are also noteworthy; June experiences 63 mm (2.5 in) over 9 days, whereas July sees a decrease to 45 mm (1.8 in) over 8 days, indicating a drier month. Humidity remains high in both months, with average levels of 88% in June and 87% in July, creating a persistently tropical climate. For more detailed information, you can visit Port Moresby weather in July.
In comparing the weather of June and August, both months exhibit warm temperatures, with June slightly outperforming August in terms of average temperature, registering an average of 26°C (79°F) compared to August's 25°C (78°F). While both months share the same minimum and maximum temperatures, June experiences a slightly higher level of precipitation at 63 mm (2.5 in) over 9 days, compared to August's 58 mm (2.3 in) over 10 days. Humidity levels are also comparable, with June at 88% and August at 85%. For more details about the temperature and conditions specific to August, you can visit Port Moresby weather in August.
In June, the weather features slightly warmer temperatures with a minimum of 21°C (70°F) and an average of 26°C (79°F), reaching a maximum of 30°C (87°F). This month experiences around 63 mm (2.5 inches) of precipitation spread over 9 days and a high humidity level of 88%. In contrast, September sees a slight dip in the minimum temperature to 19°C (66°F) while maintaining a similar maximum of 30°C (87°F) and an average of 25°C (78°F). Rainfall increases to 81 mm (3.2 inches) over 11 days, accompanied by a slightly lower humidity of 80%. Overall, both months are warm, but September is a bit wetter and cooler. For more details, you can check Port Moresby weather in September.
June and October in Port Moresby feature similar average temperatures, with minimums around 21°C (70°F) and averages hovering around 26°C (79°F). However, October tends to be slightly warmer with a maximum of 31°C (88°F) compared to June’s 30°C (87°F). Precipitation is significantly higher in October, with 119 mm (4.7 in) spread over 17 days, while June experiences 63 mm (2.5 in) across 9 days. Interestingly, humidity levels are also different, with June being more humid at 88%, while October sees a decrease to 81%. For more details, visit Port Moresby weather in October.
In June, the weather tends to be warm with temperatures ranging from a minimum of 21°C (70°F) to a maximum of 30°C (87°F), averaging around 26°C (79°F). The month experiences moderate rainfall, with 63 mm (2.5 in) spread over about 9 days, accompanied by high humidity at 88%.
In contrast, November sees slightly warmer temperatures, with a minimum of 21°C (69°F) and a maximum of 33°C (91°F), averaging 27°C (80°F). However, November is also wetter, receiving 130 mm (5.1 in) of precipitation over approximately 17 days, and the humidity is slightly lower at 81%. For a more detailed look at the climate during this month, you can check out the Port Moresby weather in November.
In June, the weather is warm and relatively humid, with average temperatures ranging from a minimum of 21°C (70°F) to a maximum of 30°C (87°F). Precipitation levels are moderate, totaling 63 mm (2.5 in) over approximately 9 days, resulting in an 88% humidity level.
In contrast, December experiences slightly higher temperatures, with averages between 23°C (73°F) and 33°C (93°F). This month sees significantly more rainfall, with 169 mm (6.7 in) of precipitation over 22 days, contributing to a humidity level of 83%. For more detailed information on December weather, you can check Port Moresby weather in December.
Overall, while both months are warm and humid, December is notably wetter and hotter than June.
June in Port Moresby experiences milder temperatures compared to the sweltering heat of preceding months, as the average settles around a comfortable 26°C. With an average humidity of 88% and 63 mm of rainfall over approximately 9 days, this month marks a transition period, blending warmth with occasional refreshing showers. The lower humidity and precipitation levels make it an inviting time for outdoor activities, offering a stark contrast to the heavier rains characteristic of late wet season months. For more details on what to expect throughout the year, check out Port Moresby Climate.