May Weather in Tumbes, Peru

Last updated: August 27, 2025

In May, Tumbes, Peru experiences a delightful warm climate characterized by a maximum temperature of 32°C (90°F) and an average of 26°C (79°F), making it an inviting destination. The evenings cool down to a minimum of 21°C (71°F), providing a comfortable respite from the daytime heat. Visitors should be prepared for some rain, as the area sees approximately 43 mm (1.7 in) of precipitation over 7 days this month. The humidity is notably high at 87%, enhancing the tropical feel of Tumbes. This blend of warmth and occasional showers contributes to the region’s lush landscapes and vibrant culture, ideal for exploration and adventure.

May Temperature in Tumbes

In May, Tumbes, Peru, experiences a pleasant climate, with temperatures showcasing a subtle yet notable trend towards cooling as the year progresses. The minimum temperature gently drops to 21°C (71°F), while the average holds steady at a comfortable 26°C (79°F). With a peak maximum of 32°C (90°F), the warm days remain inviting but slightly milder than the sizzling highs of previous months. This balance creates an ideal backdrop for outdoor adventures and exploration, as the climate transitions toward the cooler winter months, making May an excellent time to visit this vibrant coastal city.

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

The chart illustrates May temperature patterns in Tumbes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tumbes, 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).
JanFebMarAprMayJunJulAugSepOctNovDec798080807877757374747577
Data source: Temperature data for Tumbes 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 Tumbes

In May, Tumbes, Peru experiences a notable decline in precipitation, recording only 43 mm (1.7 in) over 7 days, a sharp contrast to the wetter months preceding it. This drop follows April's more substantial rainfall of 85 mm (3.3 in) and ushers in the dry season. As the landscape transitions into June, where rainfall continues to diminish to just 12 mm (0.5 in) across a mere 2 days, it's evident that May serves as a pivotal month, marking a key shift from the frequently wet conditions of earlier months. This trend towards dryness sets the stage for the region's arid winter, with rainfall significantly tapering off until the following year.

May Precipitation Trends in Tumbes

The chart displays monthly precipitation patterns in Tumbes, 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 Tumbes, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec651622398543131034161034
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Tumbes

As May rolls into Tumbes, Peru, the humidity remains consistently high, hovering around 87%—the same level recorded in both February and June. This slight uptick from April’s 84% marks a return to the richer moisture levels typical of the region, which begins with January’s peak at 88%. The data reveals a trend of fairly stable humidity throughout the year, oscillating between 84% and 88%, suggesting that Tumbes experiences a consistently humid climate, particularly as it transitions from the warmer season into the cooler months. Overall, May serves as a reminder of Tumbes' lush atmosphere, providing a refreshing breath of moisture before the slightly drier months ahead.

May Average Humidity in Tumbes

This chart illustrates the average monthly humidity levels in Tumbes, 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 Tumbes is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%86%84%87%87%84%84%86%86%87%89%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Tumbes

In May, Tumbes, Peru continues to experience extreme UV index levels, with a reading of 13 this month. Though slightly lower than the 15 recorded in March and April, May still demands vigilance, as the recommended burn time remains a swift 10 minutes. This trend emphasizes the consistently high UV exposure in Tumbes throughout the year, with January and February peaking at 14, and March and April reaching 15. Even as we transition into the mid-year months, June and July only dip to 11, keeping skin protection a high priority. To stay informed and safe, check out the detailed guidelines at Tumbes UV Index.

Maximum UV Index Levels in Tumbes for May

The chart shows the monthly maximum UV Index (UVI) for Tumbes 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 Tumbes typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141415151311111214131312
Data source: Tumbes 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 Tumbes

In May, Tumbes, Peru basks in an impressive 315 hours of sunshine, marking a continuation of the upward trend from the previous months. This increment reflects a vibrant transition into the dry season, as daylight hours steadily increase from January's 251 hours to an exuberant 337 hours by August. The gradual rise in sunshine hours signifies a delightful opportunity for outdoor activities, with May standing out as a striking prelude to the sun-drenched peak of winter. The consistency of bright days continues through June and July, ensuring that Tumbes remains a bright and inviting destination for sun-seekers.

Monthly Sunshine Duration in Tumbes: May Highlighted

The May sunshine duration represents the total number of hours Tumbes 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.
JanFebMarAprMayJunJulAugSepOctNovDec251h266h283h302h315h314h336h337h326h324h319h320h
Data source: Tumbes May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Tumbes During May

In Tumbes, Peru, May marks a significant shift in the likelihood of sunny weather, boasting a 44% chance of sunshine—nearly double the percentages seen in the earlier months of the year. This increase not only sets May apart as a promising time for outdoor activities but also signals the approach of the drier season, with subsequent months like July reaching a peak of 57% sunshine. As the region transitions from the cooler, overcast days of January through April, May offers a refreshing glimpse of brighter weather, inviting both locals and tourists to embrace the warmth and vibrancy of this coastal paradise.

Percentage of Sunny Days in May in Tumbes

The chart illustrates the percentage of sunny days in Tumbes 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 Tumbes experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec19%16%16%19%44%40%57%39%42%26%29%22%
Data source: Tumbes May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Tumbes in May

In Tumbes, Peru, daylight duration showcases a consistent pattern throughout the year, with a notable shift in May. From January to April, the region enjoys a steady 12 hours of daylight, creating a sense of balance between day and night. However, in May, this duration decreases to 11 hours, marking the onset of a trend that continues through June, July, and August. During these months, Tumbes experiences shorter days, before gradually returning to its previous 12-hour daylight schedule in September through December. This cyclical variation adds a unique rhythm to the tropical climate, inviting residents and visitors alike to embrace the vibrant transitions that accompany each season.

Average Daylight Hours in Tumbes for May

The chart illustrates the variation in daylight duration in Tumbes throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec12h 17m12h 12m12h 6m12h11h 56m11h 54m11h 55m11h 59m12h 4m12h 10m12h 15m12h 18m
Data source: Tumbes daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Tumbes

In May, Tumbes, Peru, experiences a modest uptick in average wind speed, reaching 2.4 m/s (5 mph). This subtle increase follows a steady pattern from earlier months, reflecting a gradual shift into breezier conditions as the year progresses. Comparing this to the preceding months, we see that April held steady at 2.0 m/s, while January through March displayed slightly lower averages, indicating a seasonal trend towards more invigorating winds. As we transition to the winter months, June continues the trend with similar speeds, ultimately leading into July, where wind speeds increase further to 2.6 m/s (6 mph). Overall, May stands as a pivotal point, heralding the arrival of more consistent and refreshing breezes in Tumbes.

Average May Wind Speed in Tumbes

The chart displays monthly wind speed patterns in Tumbes, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.32.31.92.02.4 m/s2.32.62.52.82.73.02.8
Data source: Tumbes May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Tumbes Compares to Other Months

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

May and January in Tumbes exhibit similar temperature ranges, with both months averaging around 26°C (79°F). However, January tends to be slightly warmer, reaching a maximum of 34°C (93°F), compared to May's high of 32°C (90°F). Precipitation levels also differ, as January sees more rainfall at 65 mm (2.6 in) over 12 days, whereas May has 43 mm (1.7 in) over just 7 days. The humidity remains quite consistent between the two months, with January at 88% and May at 87%. For further details, you can find more information on Tumbes weather in January.

When comparing the weather in May and February, we see notable differences in both temperature and precipitation. May generally has a slightly lower temperature range, with minimums of 21°C and maximums reaching 32°C, while February tends to be warmer with minimums of 23°C and maximums of 33°C. Additionally, February is significantly wetter, receiving 162 mm of rain over 19 days compared to May's 43 mm over just 7 days. Despite the similar humidity levels in both months at 87%, the rainfall in February can impact outdoor activities. For more details on Tumbes weather in February, check out Tumbes weather in February.

In comparing the weather of May and March, both months experience similar maximum temperatures, peaking at 32°C (90°F). However, March tends to be slightly warmer on average, with minimum temperatures around 23°C (74°F) compared to May's 21°C (71°F). Notably, March is much wetter, with a significant amount of precipitation totaling 239 mm (9.4 in) over 20 days, while May sees only 43 mm (1.7 in) over just 7 days. Humidity remains high in both months, with May at 87% and March slightly lower at 86%. For detailed insights on the weather in March, you can check this Tumbes weather in March.

In comparing the weather between April and May, we see a slight decrease in average temperatures, with April registering a minimum of 22°C (73°F) and a maximum of 33°C (91°F), compared to May's minimum of 21°C (71°F) and maximum of 32°C (90°F). April also experiences significantly higher precipitation, totaling 85 mm (3.3 in) over 11 days, while May has only 43 mm (1.7 in) across 7 days. Humidity remains relatively similar, with April at 84% and May slightly higher at 87%. For more detailed insights, check out Tumbes weather in April.

In comparing the weather of May and June, it is evident that both months experience warm temperatures, but there are some notable differences. May features a higher average temperature of 26°C (79°F), with max temperatures reaching 32°C (90°F), while June sees a slight decrease in the average temperature to 25°C (77°F) and similar maximums of 32°C (89°F). Additionally, May receives significantly more precipitation, totaling 43 mm (1.7 in) over 7 days, compared to June's much drier conditions with only 12 mm (0.5 in) falling over 2 days. The humidity remains consistent in both months at 87%, contributing to the warm feel. For more specific details on weather patterns in June, you can check Tumbes weather in June.

In May, the weather is significantly warmer, with average temperatures reaching 26°C (79°F) and maximums soaring up to 32°C (90°F). Additionally, the humidity is relatively high at 87%, and the region experiences about 43 mm (1.7 in) of precipitation over approximately 7 days. In contrast, July brings cooler temperatures, with an average of 24°C (75°F), a maximum of 29°C (85°F), and significantly less rainfall at only 10 mm (0.4 in) over just 2 days. The humidity remains similar, at 84%. For a more detailed look at weather specifics in this month, check out Tumbes weather in July.

In May, the weather is characterized by warmer temperatures, with a minimum of 21°C (71°F) and a maximum of 32°C (90°F), resulting in an average temperature of 26°C (79°F). This month experiences higher humidity at 87% and considerable rainfall, totaling 43 mm (1.7 in) over 7 days. In contrast, August offers milder conditions, with temperatures ranging from a minimum of 18°C (65°F) to a maximum of 29°C (85°F), leading to an average of 23°C (74°F). Additionally, August sees significantly less precipitation, only 3 mm (0.1 in) with no rainy days, and a slightly lower humidity of 84%. For more specifics on August weather, you can visit Tumbes weather in August.

May weather is typically warmer than September, with average temperatures reaching around 26°C (79°F) and maximums peaking at 32°C (90°F). In contrast, September offers a cooler average of 23°C (74°F) and maximums of 29°C (84°F). Additionally, May experiences considerably more rainfall, with 43 mm (1.7 in) over about 7 days, while September sees much less precipitation at only 4 mm (0.1 in) across just 1 day. Humidity levels remain similar in both months, hovering around 86-87%. For a more detailed look at weather conditions, you can check Tumbes weather in September.

In May, the weather tends to be warmer with temperatures ranging from a minimum of 21°C (71°F) to a maximum of 32°C (90°F), accompanied by higher humidity levels at 87%. Additionally, this month sees more precipitation, averaging 43 mm (1.7 in) over about 7 days. In contrast, October experiences slightly cooler temperatures, with a minimum of 19°C (66°F) and a maximum of 30°C (86°F). The month also enjoys significantly less rainfall, with only 16 mm (0.6 in) across 3 days, and humidity remains comparable at 86%. For more detailed information, you can visit Tumbes weather in October.

May and November present quite similar temperatures, with both months seeing highs reaching up to 32°C (90°F) in May and 32°C (89°F) in November. However, May is generally warmer with an average temperature of 26°C (79°F), compared to November's average of 24°C (75°F). Precipitation levels are notably different, as May experiences significantly more rainfall at 43 mm (1.7 in) over 7 days, while November sees only 10 mm (0.4 in) over just 2 days. Both months share the same humidity level of 87%, contributing to a consistently humid atmosphere. For more insights on November weather, check out Tumbes weather in November.

In May, the weather features a warm average temperature of 26°C (79°F), with daytime highs reaching up to 32°C (90°F) and a minimum temperature of 21°C (71°F). This month experiences a bit more precipitation at 43 mm (1.7 in) over approximately 7 days, alongside high humidity levels of 87%.

In contrast, December sees a slightly cooler average temperature of 25°C (78°F) with similar maximum temperatures of 32°C (90°F) and a minimum temperature of 20°C (68°F). Precipitation decreases to 34 mm (1.4 in) over 8 days, while humidity is only marginally higher at 88%. For a detailed look at the weather patterns, check out Tumbes weather in December.

Compare Tumbes's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Tumbes

In May, Tumbes experiences a delightful transition with average temperatures hovering around 26°C (79°F), marking a shift towards warmer days and cooler nights. Compared to other months, this period sees increased humidity levels at 87% and a modest rise in precipitation, averaging 43 mm over about 7 days. This balance between warmth and moisture creates an inviting atmosphere, making May ideal for enjoying the region's natural beauty. For a deeper insight into the distinct weather patterns throughout the year, visit Tumbes Climate.