May Weather in Arica, Chile

Last updated: August 21, 2025

May in Arica, Chile presents a mild coastal climate characterized by an average temperature of 18°C (65°F), with daytime highs reaching up to 26°C (79°F) and nighttime lows dipping to 14°C (57°F). The month is marked by a notable precipitation total of 37 mm (1.5 in), spread across approximately 18 days, contributing to the region's high humidity, averaging around 88%. This unique blend of temperate weather and frequent showers creates an enchanting atmosphere, making May an intriguing time to explore the rich landscapes and vibrant culture of Arica.

May Temperature in Arica

In May, Arica, Chile experiences a gentle transition into cooler weather, with temperatures reflecting a significant drop from the warmth of summer months. The average temperature settles at a mild 18°C (65°F), while daily highs still reach up to 26°C (79°F), making for comfortable afternoons. With nighttime lows dipping to around 14°C (57°F), May offers a refreshing reprieve as it signals the approach of the colder months ahead. This month stands out for its balance, merging the lingering warmth of April with the cooler trends that June will bring, showcasing Arica's unique climate character as it gradually shifts through the seasons.

May Weather in Arica: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Arica, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arica, May typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec727372686562606061636669
Data source: Temperature data for Arica generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Arica

May marks a significant shift in Arica, Chile's precipitation patterns, experiencing a notable increase to 37 mm (1.5 in)—almost a tripling compared to April's total. This month stands out not only for its rainfall volume but also for its prolonged wetness, with rain recorded over 18 days, hinting at a shift towards the region's more humid winter months. As the year progresses, June takes the lead with even higher totals, suggesting that May serves as a crucial transition period. The contrast from the relatively dry months earlier in the year underscores Arica's unique climatic rhythms, illustrating a landscape that transforms dramatically as the seasons turn.

May Precipitation Trends in Arica

The chart displays monthly precipitation patterns in Arica, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Arica, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec1816512374943383119912
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Arica

In May, Arica, Chile, experiences a humidity level of 88%, a slight dip from the consistent 90% recorded in the preceding months. This subtle decrease marks the beginning of a gradual decline in humidity as the region transitions toward winter, with June showing a further drop to 86%. Despite these changes, the overall humidity levels remain relatively high compared to the drier months ahead. This trend highlights Arica's characteristic coastal climate, where humidity tends to stabilize around the mid to high 80s throughout much of the year.

May Average Humidity in Arica

This chart illustrates the average monthly humidity levels in Arica, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Arica is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%90%90%90%88%86%83%82%83%87%87%85%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Arica

In May, Arica, Chile, experiences a very high UV Index of 9, indicating that while the risk of harm from unprotected sun exposure remains significant, it is slightly lower than the extreme levels seen earlier in the year. As temperatures start to cool, the burn time increases to 15 minutes, offering a bit more leeway for outdoor activities without immediate risk. This trend highlights a gradual decrease in UV intensity from the scorching peak months of January through April, where the Index consistently reached an extreme level of 15. Visitors and residents alike should remain vigilant, though, as the sun's rays can still pose a serious threat. For more information on UV exposure levels throughout the year, check out the complete guide here: Arica UV Index.

Maximum UV Index Levels in Arica for May

The chart shows the monthly maximum UV Index (UVI) for Arica in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Arica typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151514129781012141515
Data source: Arica May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

May Sunshine in Arica

May in Arica, Chile, bathes in 329 hours of sunshine, continuing the region's trend of abundant daylight that peaks in the latter half of the year. Following a stellar April with 328 hours, May showcases a slight but consistent brightness as the days lengthen. This month marks a transition into winter; however, the sun remains steadfast, with hours of sunshine gradually decreasing into June. Notably, the sun-drenched months preceding May, such as October to December, hint at an exceptional annual average that enchants residents and tourists alike, making Arica a year-round haven for sunseekers.

Monthly Sunshine Duration in Arica: May Highlighted

The May sunshine duration represents the total number of hours Arica experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec285h311h342h328h329h308h328h337h343h367h365h369h
Data source: Arica May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Arica During May

In Arica, Chile, the likelihood of sunny weather experiences a noticeable decline as May rolls in, with only 24% chance of sun. This marks a significant dip from the warmer months, where summer peaks in January at 29% and February at 36%. The transition into autumn sees a gradual decrease, with April holding a modest 30% chance before May's sunshine potential dwindles further. Following May, June drops to just 18%, reflecting the onset of cooler weather. As we look at the year as a whole, it’s clear that sun-soaked days are more frequent in the earlier months, making May a transitional period where sunshine becomes less certain, hinting at the cooler and cloudier days ahead.

Percentage of Sunny Days in May in Arica

The chart illustrates the percentage of sunny days in Arica throughout the year, with May highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Arica experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec29%36%34%30%24%18%24%24%21%30%24%15%
Data source: Arica May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Arica in May

In Arica, Chile, the rhythm of daylight reveals a fascinating trend throughout the year. January and December boast the longest days with 13 hours of sunlight, creating a vibrant summer atmosphere. As the year progresses into the autumn months, daylight gradually shortens, dropping to 11 hours by April and continuing through the winter. Interestingly, daylight hours stabilize at this duration from May through August, offering a consistent experience of natural light. As spring approaches in September, the days slowly begin to lengthen again, ramping up to 12 hours in October and November before returning to the summer peak. This cyclical pattern not only highlights Arica's unique geographic location but also enhances the charm of each season.

Average Daylight Hours in Arica for May

The chart illustrates the variation in daylight duration in Arica throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec13h 4m12h 40m12h 9m11h 38m11h 13m11h 1m11h 7m11h 29m11h 59m12h 31m12h 58m13h 12m
Data source: Arica daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Arica

In Arica, Chile, the month of May showcases a gentle breeze with an average wind speed of 2.3 m/s (5 mph), slightly easing from the preceding April's 2.5 m/s (6 mph). This trend of mild winds typically marks the transition into the winter season, as the region exhibits consistently moderate wind patterns throughout the year. It's interesting to note that following May, wind speeds pick up again in June, returning to 2.5 m/s (6 mph). Overall, Arica's weather demonstrates a remarkable stability in wind conditions, maintaining a pleasant atmosphere that is ideal for leisurely outdoor activities all year round.

Average May Wind Speed in Arica

The chart displays monthly wind speed patterns in Arica, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.42.42.32.52.3 m/s2.52.52.52.62.62.62.6
Data source: Arica May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Arica Compares to Other Months

Weather in Arica varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Arica, focusing on differences in temperature, rainfall, humidity, and UV levels.

When comparing the weather in May and January, it's evident that January tends to be warmer with average temperatures ranging from a low of 17°C (63°F) to a high of 28°C (83°F), while May's temperatures are milder, ranging from 14°C (57°F) to 26°C (79°F). Additionally, January experiences significantly less precipitation, with only 18 mm (0.7 in) over about 5 days, compared to May’s 37 mm (1.5 in) spread over 18 days. Humidity levels remain similar in both months, hovering around 88% in May and slightly higher at 89% in January. For more details on January weather specifics, you can visit Arica weather in January.

When comparing the weather in May and February, it is evident that February tends to be warmer, with average temperatures ranging from a minimum of 17°C (63°F) to a maximum of 29°C (84°F). In contrast, May experiences milder conditions with temperatures between 14°C (57°F) and 26°C (79°F). February also sees significantly less precipitation, with only 16 mm (0.6 in) over just 3 days, compared to May's 37 mm (1.5 in) spread over 18 days. Both months have high humidity levels, with February at 90% and May slightly lower at 88%. For more detailed information about February weather, you can visit Arica weather in February.

In comparing the weather of May and March, we see distinct differences. March typically enjoys a warmer temperature range, with average highs reaching 29°C (84°F), while May sees a milder peak at 26°C (79°F). However, May brings more frequent rainfall, with precipitation occurring on 18 days and totaling 37 mm (1.5 in), compared to March's minimal 5 mm (0.2 in) over just one day. Additionally, humidity remains high in both months, though May's average humidity of 88% is slightly lower than March's 90%. For a deeper insight into the climate specifics, you can check Arica weather in March.

In comparing the weather of April and May, we can see some notable differences. April experiences slightly warmer average temperatures, with a minimum of 14°C (57°F) and an average of 20°C (68°F), peaking at 27°C (81°F). The precipitation during April is relatively low, totaling only 12 mm (0.5 in) over just 2 days, with humidity at 90%. In contrast, May has a cooler average temperature of 18°C (65°F), with a more significant maximum of 26°C (79°F) but a similar minimum of 14°C (57°F). Additionally, May sees increased precipitation at 37 mm (1.5 in) over 18 days, along with slightly less humidity at 88%. For a closer look at April weather, check out Arica weather in April.

In comparison to May, June experiences slightly cooler temperatures, with a minimum of 11°C (53°F) and a maximum of 22°C (72°F), leading to an average temperature of 17°C (62°F). May, on the other hand, offers a warmer climate with a minimum of 14°C (57°F) and a maximum of 26°C (79°F), resulting in a higher average of 18°C (65°F). Regarding precipitation, June has more rainfall at 49 mm (1.9 in) over 24 days, compared to May's 37 mm (1.5 in) over 18 days. Humidity levels remain similar, with June at 86% and May slightly higher at 88%. For more detailed information, you can check Arica weather in June.

In comparing the weather of May and July, May typically experiences a milder temperature range with a minimum of 14°C (57°F) and an average of 18°C (65°F), peaking at a maximum of 26°C (79°F). This month also sees 37 mm (1.5 in) of precipitation over 18 days, contributing to a higher humidity level of 88%. In contrast, July presents cooler temperatures, with a minimum of 11°C (52°F), an average of 16°C (61°F), and a maximum of 28°C (83°F). The precipitation increases slightly to 43 mm (1.7 in), spread out over 23 days, while humidity is a bit lower at 83%. For more details, you can check Arica weather in July.

In comparing the weather of May and August, May generally experiences warmer temperatures, with minimums around 14°C (57°F) and maximums reaching up to 26°C (79°F), while August is cooler, with minimums of 11°C (53°F) and maximums only hitting 21°C (69°F). Both months receive similar amounts of precipitation, with May at 37 mm (1.5 in) and August slightly higher at 38 mm (1.5 in), accompanied by a comparable number of rainy days—18 days in May and 19 in August. Humidity levels are also slightly higher in May at 88%, compared to August's 82%. For a detailed look at August weather specifics, visit Arica weather in August.

May and September present distinct weather patterns, showcasing the transition from spring to early autumn. In May, temperatures range from a low of 14°C (57°F) to a high of 26°C (79°F), with an average of 18°C (65°F), making it a warmer month compared to September. However, May experiences more humidity at 88% and a higher frequency of rainfall over 18 days, totaling 37 mm (1.5 in). In September, the weather cools down, with temperatures dipping to a minimum of 11°C (52°F) and a maximum of 22°C (72°F), averaging 16°C (61°F). On the positive side, rainfall is less frequent in September, occurring over 13 days and accumulating only 31 mm (1.2 in), alongside a slight decrease in humidity to 83%. For more detailed insights on September weather, visit Arica weather in September.

In May, the weather features warmer temperatures with an average of 18°C (65°F), ranging from a minimum of 14°C (57°F) to a maximum of 26°C (79°F). This month also sees higher precipitation, totaling 37 mm (1.5 in) over approximately 18 days, coupled with a high humidity level of 88%. In contrast, October offers slightly cooler conditions, with an average temperature of 17°C (63°F), a minimum of 12°C (54°F), and a maximum of 24°C (76°F). Precipitation in October is significantly lower, at 19 mm (0.8 in) across just 4 days, and humidity remains similar at 87%. For a detailed look into October's weather, you can visit Arica weather in October.

May and November exhibit similar mild temperatures, with May showing a slight fluctuation from a minimum of 14°C (57°F) to a maximum of 26°C (79°F) and an average of 18°C (65°F). In contrast, November offers slightly cooler temperatures, with a minimum of 13°C (56°F), an average of 19°C (66°F), and a maximum of 25°C (78°F). However, May experiences significantly more precipitation, totaling 37 mm (1.5 in) across 18 days, while November sees much drier conditions with only 9 mm (0.4 in) of rain across 0 days of precipitation. Humidity levels remain similar, with May at 88% and November at 87%. For more detailed information, you can refer to Arica weather in November.

In May, the weather is characterized by a range of temperatures, with a minimum of 14°C (57°F) and a maximum of 26°C (79°F), averaging around 18°C (65°F). This month sees about 37 mm (1.5 in) of precipitation over roughly 18 days, contributing to a high humidity level of 88%. In contrast, December experiences slightly warmer temperatures, with a minimum of 15°C (59°F) and a maximum of 27°C (80°F), averaging at 20°C (69°F). Precipitation drops significantly to just 11 mm (0.5 in) over only 1 day, resulting in a slightly lower humidity of 85%. For more details on December weather, you can refer to this link: Arica weather in December.

Compare Arica's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Arica

As May arrives in Arica, the weather begins to shift noticeably, offering a cooler embrace compared to the warmer months preceding it. With average temperatures settling around a comfortable 18°C (65°F), residents experience a significant drop from the summer highs. This month is also marked by increased humidity and a rise in precipitation, with rain making an appearance on more days than usual. While the city is known for its dry climate overall, May's 37 mm of rainfall reminds us that even desert areas can experience seasonal changes. For a deeper insight into how May fits into the broader climatic patterns of Arica, explore the detailed data at Arica Climate.