Last updated: August 27, 2025
In May, Lima, Peru experiences a delightful transition into cooler autumn weather, with maximum temperatures reaching around 25°C (78°F) and a cozy average of 19°C (66°F). The minimum temperature dips to a refreshing 14°C (58°F), making it an ideal time for outdoor activities. With only 9 mm (0.4 in) of precipitation over just one day, the dry atmosphere combined with a high humidity level of 83% creates a unique interplay of warmth and crispness, inviting both locals and visitors to enjoy the city's vibrant culture and stunning coastal views.
In May, Lima, Peru, experiences a gentle transition into cooler temperatures, making it one of the more comfortable months of the year. The average temperature hovers around 19°C (66°F), with a minimum of 14°C (58°F) and a maximum of 25°C (78°F). This gradual decline from the warmth of April sets the stage for the city's characteristic cloud cover, contributing to a refreshing coastal climate. As the month progresses, the cooler evenings invite locals and visitors alike to embrace cozy gatherings, while the mild daytime temperatures remain ideal for exploring Lima's vibrant streets and rich culture.
In May, Lima, Peru, experiences a notable shift in its precipitation patterns, with a mere 9 mm (0.4 in) of rainfall, signaling the onset of dry conditions. This dip in precipitation is reflected in the drastic reduction of rainy days, as the city sees only 1 day of rain during the month, a stark contrast to the wetter months of January through April. The trend continues through the following months, with June and July recording similar low levels of precipitation, often leading to a sustained dry season. This pattern highlights Lima's characteristic climate, where a significant portion of annual rainfall is concentrated in the summer months, leaving May as a transitional period toward the more arid winter.
As May unfolds in Lima, Peru, the city experiences a noticeable shift in humidity levels, dropping to 83%. This marks a continued decline from the peak of 90% recorded in March and the steady 89% in the preceding months of January through April. The transition into May signals the approach of drier months ahead, with humidity levels set to further decrease dramatically in June to 69% and continue descending through the winter months. This gradual reduction not only heralds a change in the climate but also invites a refreshing breath of air, offering a reprieve from the higher moisture levels typical of the region's earlier months. As the seasons shift, Lima's weather promises a more temperate feel.
In May, Lima experiences a UV Index of 10, placing it within the very high exposure category and allowing for a burn time of about 15 minutes. This marks a slight decline from the extreme levels seen earlier in the year, particularly from January to April, when the index consistently reached 14. As summer transitions into winter, the UV intensity remains notably high, suggesting that residents and visitors alike should remain vigilant about sun protection. It’s essential to embrace the sun-warmed days while being mindful of skin safety, as levels remain significant compared to the rest of the year. For more detailed information, check out the Lima UV Index.
UV Risk Categories
In Lima, Peru, May shines brightly with 331 hours of delightful sunshine, marking it as a standout month in a year filled with vibrant sunlit days. As the city transitions from the cooler months of March and April, which each offer over 320 hours, May showcases a steady upward trend in daylight that continues through the year. This increase in luminosity continues into June and July, where the sun seems more generous, peaking with 335 hours in August. Interestingly, from September onwards, the sunlight hours remain consistently high, averaging between 326 and 340 hours per month, indicating that Lima is blessed with an abundance of sunshine that stretches throughout the year. This gradual rise and sustained warmth highlight Lima's appealing climate, making it an inviting destination for sun-seekers year-round.
In May, Lima experiences a notable shift in its weather patterns, with the chance of sunny days reaching an impressive 50%. This marks a considerable increase from the preceding months, where sunshine probabilities hovered below 25%. Following April's increase to 25%, May stands out as a bright beacon of optimism, paving the way for even sunnier months ahead, such as July, which boasts a 55% chance of sun. Additionally, the transition from overcast conditions in earlier months like January and February, with just 6% and 15% chances of sun respectively, showcases a gradual yet uplifting trend toward more favorable weather. As the city moves into May, residents and visitors alike can look forward to a refreshing burst of sunlight amidst the coastal fog that typically defines the Lima climate.
In Lima, Peru, the daylight duration exhibits a fascinating rhythm throughout the year. From January to March, residents enjoy a consistent 12 hours of daylight, basking in the sun's warmth. As April arrives, the days begin to shorten slightly, offering 11 hours of daylight that continues through May and into June. This subtle decrease in sunlight persists until August, after which the trend reverses. By September, Limaans are greeted again with 12 hours of daylight, which remains steady through October, November, and December. This cyclical pattern highlights Lima's unique placement along the equatorial region, where the daylight hours shift gradually but remain relatively balanced across the seasons.
As May unfolds in Lima, Peru, the winds begin to pick up, reaching an average speed of 2.6 m/s (6 mph). This moderate increase from the preceding months signals the onset of a breezier season, as the winds consistently grow stronger through June and into July. Following a relatively calm beginning to the year, with January and February averaging just 2.1 m/s and 1.9 m/s respectively, May's winds are a refreshing shift, bridging the transition toward the consistently brisk gusts of mid-year. The steady rise in wind speed not only enhances the coastal ambiance but also heralds the arrival of lively outdoor conditions, making it an ideal time for kite flying and enjoying the refreshing sea breeze.
Weather in Lima varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Lima, focusing on differences in temperature, rainfall, humidity, and UV levels.
In May, the weather is generally mild with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 25°C (78°F) and an average of 19°C (66°F). This month typically sees low precipitation, with only about 9 mm (0.4 in) spread across just 1 day, and humidity levels around 83%. In contrast, January features warmer conditions, with temperatures ranging from a minimum of 17°C (64°F) to a maximum of 27°C (81°F), averaging at 21°C (71°F). However, it is also much wetter with 47 mm (1.9 in) of rainfall occurring over 15 days and slightly higher humidity at 89%. For more details, you can check out the Lima weather in January.
When comparing the weather in May and February, there are notable differences in both temperature and precipitation. May typically sees milder temperatures, ranging from a minimum of 14°C (58°F) to a maximum of 25°C (78°F), with an average of 19°C (66°F). In contrast, February offers warmer conditions, with temperatures ranging from 18°C (65°F) to 28°C (82°F) and an average of 22°C (72°F).
Precipitation levels also differ significantly; May experiences minimal rainfall, with only 9 mm (0.4 in) over just 1 day, while February is much wetter, receiving 53 mm (2.1 in) over 12 days. Additionally, February tends to have slightly higher humidity at 89%, compared to May's 83%. For more detailed insights, you can check Lima weather in February.
When comparing the weather in May and March, it's evident that May enjoys milder temperatures, with averages around 19°C (66°F) and highs reaching up to 25°C (78°F). In contrast, March boasts warmer conditions, with an average of 22°C (72°F) and maximum temperatures of 27°C (81°F). However, March is significantly wetter, receiving 50 mm (2.0 in) of rainfall over 14 days, whereas May experiences much drier conditions with only 9 mm (0.4 in) of precipitation on just one day. Additionally, while humidity is slightly lower in May at 83%, March records a higher humidity level of 90%. For more detailed weather insights, you can check Lima weather in March.
In comparing the weather of May to that of April, we can observe slight variations in temperature and precipitation. May experiences a minimum temperature of 14°C (58°F) and an average of 19°C (66°F), while April's temperatures are slightly higher, with a minimum of 15°C (60°F) and an average of 20°C (69°F). Although both months have similar maximum temperatures, April is generally wetter, receiving 18 mm (0.7 in) of rainfall over 5 days compared to May's lighter 9 mm (0.4 in) over just 1 day. Notably, humidity levels are also higher in April at 89%, compared to 83% in May. For more details, you can check out Lima weather in April.
In May, the weather tends to be slightly warmer, with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 25°C (78°F) and an average of 19°C (66°F). This month sees minimal precipitation of just 9 mm (0.4 in) over one day and relatively high humidity at 83%. In contrast, June experiences cooler temperatures, with lows of 15°C (59°F) and highs reaching only 21°C (71°F), resulting in an average temperature of 18°C (64°F). Precipitation remains low in June at 10 mm (0.4 in), but notably, there are no rainy days, and humidity decreases to a more comfortable 69%. For more detailed information, you can check Lima weather in June.
In May, the weather tends to be milder with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 25°C (78°F), and an average of 19°C (66°F). The humidity is relatively high at 83%, and there is minimal precipitation, typically around 9 mm (0.4 in) over about one day. In contrast, July sees cooler temperatures, with a range from 14°C (57°F) to 21°C (69°F) and an average of 17°C (63°F). Interestingly, July experiences no rainy days, though precipitation can still reach 11 mm (0.4 in). The humidity drops significantly to 56%, making the July weather feel much drier. For a closer look at the specifics of July weather, you can check out Lima weather in July.
In May, temperatures are generally pleasant, ranging from a minimum of 14°C (58°F) to a maximum of 25°C (78°F), with an average of 19°C (66°F). The month experiences some rainfall, with about 9 mm (0.4 in) of precipitation over only one day, resulting in a higher humidity level of 83%. In contrast, August features cooler temperatures, with daily averages peaking at 20°C (69°F) and minimums hovering around 14°C (57°F). Notably, August is drier, with no recorded precipitation, leading to a lower humidity of 50%. For more detailed meteorological insights, you can check out Lima weather in August.
May and September exhibit distinct differences in temperature and humidity despite having similar minimum temperatures. In May, the average temperature reaches 19°C (66°F), peaking at a warmer 25°C (78°F), while September sees a cooler average of 17°C (62°F) with a maximum of only 20°C (69°F). Both months experience low precipitation levels, with May having 9 mm (0.4 in) and September slightly higher at 10 mm (0.4 in), each registering only one day of rain. However, humidity plays a significant role; May's humidity stands at 83%, creating a much more humid environment compared to the drier 53% experienced in September. For more detailed insights on September weather, you can check out Lima weather in September.
In May, the weather is generally warmer, with average temperatures ranging from a minimum of 14°C (58°F) to a maximum of 25°C (78°F). The month sees only a small amount of precipitation, around 9 mm (0.4 in) over just one day, coupled with a higher humidity of 83%. In contrast, October experiences cooler temperatures, peaking at 21°C (71°F) and averaging 17°C (63°F). Rainfall increases slightly to 10 mm (0.4 in) over two days, but humidity is lower at 68%. For more detailed insights, you can check Lima weather in October.
In May, the weather tends to be slightly warmer with average temperatures ranging from a minimum of 14°C (58°F) to a maximum of 25°C (78°F), while November sees a similar temperature range, with a minimum of 15°C (59°F) and a maximum of 23°C (74°F). Both months experience low precipitation, with May averaging just 9 mm (0.4 in) over 1 day and November receiving the same amount over 2 days, although November's humidity is a bit lower at 81% compared to May's 83%. Overall, both months offer mild climates, making them pleasant times to visit. For more specific information on November weather, you can check Lima weather in November.
In May, the weather features a comfortable temperature range with a minimum of 14°C (58°F) and a maximum of 25°C (78°F), averaging around 19°C (66°F). The month sees light precipitation of 9 mm (0.4 in) over just one day and maintains a humidity level of 83%. In contrast, December experiences slightly warmer temperatures, with a minimum of 16°C (62°F) and a maximum of 25°C (76°F), with an average of 20°C (68°F). However, it also has increased precipitation at 17 mm (0.7 in) spread across three days and a marginally higher humidity of 87%. For more detailed information, you can check Lima weather in December.
As May unfolds in Lima, the city experiences a pleasant shift in weather, marked by warmer temperatures and significantly reduced rainfall compared to the preceding months. With an average temperature of around 19°C (66°F), daytime highs reach 25°C (78°F), offering a delightful atmosphere for outdoor activities. The respite from rain, with only 9 mm of precipitation over a mere day, allows for clearer skies and vibrant landscapes, making it a perfect time to explore the city's rich culture. Additionally, the moderate humidity level of 83% lends a refreshing feel to the air. For a comprehensive overview of what to expect throughout the year, check out Lima Climate.