Last updated: February 25, 2025
In May, Mount Isa, Australia, experiences a delightful range of temperatures, with daily highs reaching up to 32°C (91°F) and a comfortable average of 21°C (70°F). Nighttime temperatures can dip to a brisk 6°C (43°F), making evenings refreshing. This month is characterized by minimal rainfall, with only 1 mm of precipitation recorded and no days of rain, contributing to pleasant outdoor conditions. The humidity level remains moderate at 47%, enhancing the overall comfortable climate that residents and visitors alike can enjoy.
May in Mount Isa, Australia welcomes a refreshing transition from the sweltering summer months, with temperatures ranging from a cool 6°C (43°F) at night to a comfortable 32°C (91°F) during the day. As autumn deepens, the average temperature settles at a mild 21°C (70°F), providing a pleasant climate for outdoor activities. This month marks a notable drop in nighttime temperatures compared to April, showcasing a significant shift towards cooler evenings. Overall, May serves as a beautifully temperate period, setting the stage for the chillier months that follow while still retaining enough warmth to enjoy the stunning landscapes of the region.
In Mount Isa, May marks a continuation of the dry spell that characterizes the latter part of the wet season. With only 1 mm of precipitation recorded and no rainy days, May stands as one of the driest months in the region, mirroring April's sparse rainfall. This stark contrast to the preceding months—namely January through March, which averaged around 76 mm of rain—highlights a significant shift towards drier conditions as autumn progresses. As the region transitions into winter, the trend of minimal rainfall continues, with an overall pattern indicating that precipitation becomes increasingly rare, setting the stage for the typically arid winter months ahead.
In May, Mount Isa experiences a noticeable shift in humidity, dropping to 47%, which is consistent with the lower humidity levels that characterize the region in the cooler months. Following a peak in March at 71%, the decline is significant, indicating the transition to the dry season. As the temperatures begin to cool, humidity levels maintain a comparable rate into June. This trend highlights Mount Isa's unique climate, where humidity is markedly high in the summer months but gives way to much drier conditions as winter approaches, creating a distinct seasonal rhythm that underscores the harsh yet fascinating Australian outback environment.
In May, Mount Isa experiences a UV Index of 9, classified as very high. This marks a notable decrease from the extreme levels seen in the earlier months, such as January and February, where indices soared to 17 and 16 respectively, necessitating just 10 minutes of exposure before burning could occur. As the seasons transition, the burn time increases to 15 minutes in May, a small but welcome reprieve. However, with levels still elevated, sun safety remains a priority as the region gears up for a shift back to extreme indices in the upcoming months. For more detailed insights on UV trends throughout the year, visit Mount Isa UV Index.
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In Mount Isa, Australia, the month of May basks in the warm glow of 289 hours of sunshine, reflecting a delightful continuation of the area's vibrant sunny spell. This period follows a steady journey through the year, with sunshine hours peaking in October at 330 hours. Notably, the sunny embrace tends to increase significantly from the cooler months of winter, with May's sunshine slightly trailing behind the sun-kissed days of March and April. As autumn gives way to winter, the region exhibits a generally consistent trend, showcasing an abundance of bright days that make Mount Isa a true gem in the Australian Outback, where the sun soars high and spirits are lifted.
In Mount Isa, Australia, the likelihood of sunny weather experiences a noticeable upward trend as the year progresses into May. Starting at a modest 49% in January, the chances of sunshine steadily rise, reaching 83% by April. May stands out with an impressive 85% likelihood of clear skies, positioning it as one of the sunniest months. This trend continues into the winter months, where July and August boast even higher probabilities at 87% and 90% respectively. Overall, May offers a delightful balance of warmth and brilliant sunshine, making it an ideal time to enjoy the outdoors in this vibrant region.
In Mount Isa, Australia, daylight duration follows a distinct seasonal rhythm throughout the year. Starting with an impressive 13 hours of daylight in January, the days gradually shorten to 12 hours by February and March, before dipping to 11 hours in both April and May. This slight decline indicates the transition into the cooler months. As June and July arrive, daylight continues to diminish, reaching a low of 10 hours. However, as winter gives way to spring, daylight begins to stretch again, climbing back to 11 hours in August and September. The cycle completes itself with a return to 12 hours in October, and finally, 13 hours in both November and December, celebrating the summer's resurgence. This trend illustrates Mount Isa's dynamic interplay of light and dark, offering varied experiences throughout the year.
In Mount Isa, the winds of May deliver a refreshing breeze, averaging 5.3 m/s (12 mph), matching the transitional gusts of April. This consistency marks a distinct trend as the region experiences higher wind speeds during the autumn months, with April, May, and September all boasting similar averages. As the year progresses, wind speeds begin to taper off, particularly in the warmer months, dipping to 4.1 m/s (9 mph) in February and 3.9 m/s (9 mph) in October. With May's invigorating winds creating a perfect backdrop for both outdoor activities and serene moments, this month encapsulates the blend of stability and change typical of Mount Isa's climate.
The weather in Mount Isa changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of May's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Mount Isa and find detailed weather information for every month.
May and January showcase distinct weather patterns. In May, temperatures range from a mild 6°C (43°F) at night to a comfortable 32°C (91°F) during the day, with minimal precipitation of only 1 mm (0.0 in) and low humidity at 47%. In contrast, January experiences significantly warmer conditions, with nighttime lows of 22°C (72°F) and daytime highs soaring to 43°C (110°F). This month also sees an increase in rainfall, receiving about 55 mm (2.1 in) over six rainy days, contributing to a higher humidity level of 56%. For a detailed look at January's climate, you can check Mount Isa weather in January.
May and February present contrasting weather patterns. In May, temperatures range from a minimum of 6°C (43°F) to a comfortable average of 21°C (70°F), peaking at 32°C (91°F), with minimal precipitation of just 1 mm and no rainy days. The humidity is relatively low at 47%. In stark contrast, February experiences significantly higher temperatures, with a minimum of 18°C (65°F), an average of 30°C (86°F), and a maximum reaching 42°C (107°F). Additionally, February sees much higher precipitation at 85 mm over six days, accompanied by increased humidity at 62%. For more details on February weather in Mount Isa, visit Mount Isa weather in February.
In comparing the weather between March and May, a clear contrast emerges. May features milder temperatures, with a minimum of 6°C (43°F), an average of 21°C (70°F), and a maximum reaching 32°C (91°F), accompanied by minimal precipitation of just 1 mm and dryness throughout the month. In stark contrast, March is significantly warmer with a minimum of 18°C (66°F), averaging 29°C (85°F), and peaking at a sweltering 41°C (106°F). Additionally, March sees considerable rainfall, totaling 87 mm spread over six days, along with higher humidity levels at 71%. For a more detailed look at March weather, check Mount Isa weather in March.
In comparing the weather of May and April, May generally presents milder temperatures, with a minimum of 6°C (43°F) and a maximum reaching up to 32°C (91°F), while April experiences warmer conditions with a minimum of 11°C (51°F) and a peak temperature of 37°C (99°F). Despite both months recording negligible precipitation of just 1 mm (0.0 in) and having no rainy days, April tends to be more humid, averaging around 53% compared to May’s 47%. For a closer look at April’s weather patterns, you can visit Mount Isa weather in April.
May enjoys warmer temperatures with a minimum of 6°C (43°F) and an average high of 32°C (91°F), while June experiences slightly cooler weather, with a minimum of 4°C (40°F) and an average high of 31°C (89°F). Despite the drop in average temperature, both months maintain a relatively low humidity level of 47% and have no recorded precipitation days. However, June does see a slight increase in precipitation, totaling 6 mm (0.2 in), compared to May's negligible 1 mm (0.0 in). For more detailed weather insights, you can explore Mount Isa weather in June.
In comparing the weather between May and July, we notice some interesting variations. May typically features a wider temperature range, with minimums reaching 6°C (43°F) and average highs of 21°C (70°F), while July sees lower minimum temperatures of 4°C (40°F) and an average of 18°C (65°F). Both months experience similar maximum temperatures, peaking at 32°C (91°F) in May and 33°C (91°F) in July. Precipitation is minimal in both months, with only 1 mm recorded, and neither experiences rainy days, contributing to a relatively dry climate. Humidity levels are slightly higher in May at 47% compared to July's 42%. For more specific insights on July weather, you can check out Mount Isa weather in July.
In May, the weather is generally warm with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 32°C (91°F) and an average of 21°C (70°F). With only 1 mm of precipitation over the month and humidity at 47%, the conditions feel quite pleasant. In contrast, August experiences slightly lower average temperatures at 20°C (68°F), with maximums reaching up to 34°C (94°F) and the same minimum of 6°C (43°F). Despite the similar lack of precipitation—0 mm recorded in August—the humidity is lower at 43%, making it feel a bit drier. For more details on August weather in Mount Isa, you can check Mount Isa weather in August.
In comparing the weather between May and September, notable differences emerge. May typically sees temperatures ranging from a minimum of 6°C (43°F) to a pleasant average of 21°C (70°F), with a maximum reaching 32°C (91°F). Precipitation is minimal in May, averaging just 1 mm (0.0 in) over the month and with no rainy days, while humidity hovers around 47%. In contrast, September experiences slightly warmer temperatures, with a minimum of 9°C (48°F), an average of 24°C (75°F), and a maximum soaring to 39°C (102°F). There is a slight increase in precipitation, averaging 5 mm (0.2 in) over one rainy day, and the humidity decreases to 32%. For more detailed information, you can check out Mount Isa weather in September.
May and October present contrasting weather patterns. In May, temperatures range from a mild 6°C (43°F) at night to a comfortable average of 21°C (70°F) during the day, peaking at a hot 32°C (91°F). The atmosphere remains dry, with no recorded precipitation and a humidity level of 47%. In sharp contrast, October sees higher minimum temperatures starting at 15°C (58°F), with an average of 28°C (83°F) and extreme highs reaching 41°C (105°F). This month also experiences slight precipitation of 10 mm (0.4 in) over two days, but the humidity drops to a much lower 23%. For more details, visit Mount Isa weather in October.
May and November in Mount Isa present contrasting weather patterns. May typically enjoys mild temperatures, with minimums around 6°C (43°F) and average highs reaching 32°C (91°F), accompanied by low humidity at 47% and almost no precipitation. In contrast, November heats up significantly, featuring a minimum temperature of 13°C (57°F) and average highs soaring to 41°C (107°F). November also witnesses increased precipitation, with about 18 mm (0.7 in) over approximately four days, and lower humidity at 28%. For more details on November's weather, you can visit Mount Isa weather in November.
May and December showcase contrasting weather patterns. In May, temperatures range from a minimum of 6°C (43°F) to a maximum of 32°C (91°F), with an average temperature of 21°C (70°F) and minimal precipitation, totaling just 1 mm over the month. The humidity is relatively low at 47%, making for pleasant conditions.
In contrast, December brings warmer temperatures, with a minimum of 17°C (63°F) and a maximum soaring to 44°C (111°F). The average temperature rises to 32°C (90°F), accompanied by more precipitation, totaling 20 mm over three days. Despite the increased rainfall, humidity remains steady at 47%. For more detailed insights, you can check Mount Isa weather in December.
As May rolls into Mount Isa, residents and visitors alike can enjoy a delightful transition in weather marked by mild temperatures and low humidity. With maximums settling around 32°C (91°F) and a pleasant average of 21°C (70°F), it offers a refreshing break from the hotter months that precede it. Unlike the earlier months, May boasts minimal rainfall, with no recorded precipitation days, which makes outdoor activities more enjoyable. The clearer skies and drier conditions invite everyone to explore the stunning landscapes that Mount Isa has to offer. For a deeper insight into what to expect year-round, visit Mount Isa Climate.