October Weather in Callao, Peru

Last updated: August 27, 2025

In October, Callao, Peru, experiences mild temperatures, with an average reaching around 17°C (63°F), while maximum highs can climb to 21°C (71°F) and lows dip to 14°C (58°F). This month sees a moderate humidity level of 68%, creating a pleasantly balmy atmosphere. Rainfall is light, with only 10 mm (0.4 in) recorded over approximately 2 days, making it a relatively dry time of year for outdoor activities and exploration.

October Temperature in Callao

In October, Callao, Peru experiences a gentle transition into cooler temperatures, with minimums around 14°C (58°F) and maximums reaching 21°C (71°F). The average temperature settles at a crisp 17°C (63°F), reflecting a steady drop compared to the warmer months earlier in the year. This shift highlights a significant trend as the year progresses, moving from the summer highs of January and February, where temperatures soar to around 27°C (81°F). The October weather is characterized by mild days and cooler evenings, making it a pleasant time to explore the coastal charm of Callao, while also marking the onset of the cooler, overcast months ahead.

October Weather in Callao: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Callao, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Callao, October 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).
JanFebMarAprMayJunJulAugSepOctNovDec707272696664636262636567
Data source: Temperature data for Callao 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.

October Precipitation in Callao

In Callao, Peru, October marks a transition into one of the driest months of the year, with precipitation amounting to just 10 mm (0.4 in) and typically limited to two rainy days. This pattern mirrors the preceding months, especially September and August, which also recorded minimal rainfall. Over the course of the year, the rainfall peaks in January and February, showcasing a marked contrast with the dry spell from June to September. As October rolls in, the city maintains its dry trend, setting the stage for a brief stint of moisture before the return to the hotter, drier months of late spring and summer. This consistent drop in precipitation not only impacts the local climate but also influences agricultural practices and water conservation efforts in the region.

October Precipitation Trends in Callao

The chart displays monthly precipitation patterns in Callao, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Callao, October typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec4753501891011101010917
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Callao

In October, Callao, Peru, experiences a noticeable shift in humidity, with levels averaging around 68%. This marks a gradual increase from the drier months of July and August, where humidity dropped to 56% and 50%, respectively. As the month transitions from the cooler winter months into the warmer season, humidity begins to rise again, signaling a return to the more tropical climate of the region. Notably, the October humidity remains lower than the earlier months of the year, particularly from January to April, when levels consistently hovered near 89% to 90%. This trend highlights the dynamic climate of Callao, where humidity fluctuates throughout the year, providing a unique experience for residents and visitors alike.

October Average Humidity in Callao

This chart illustrates the average monthly humidity levels in Callao, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Callao is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%89%90%89%83%69%56%51%53%68%82%87%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Callao

In Callao, Peru, October reveals an extreme UV Index of 13, indicating potential for significant skin damage with just 10 minutes of unprotected exposure. This month continues the trend of high UV levels, following a remarkable stretch from January to March when the index peaked at a staggering 14. While it dips slightly in May and June, the index remains consistently very high or extreme, underscoring the need for protective measures year-round. November returns to the 14 mark, emphasizing the relentless intensity of the sun in this coastal region. Remember to check the latest details at Callao UV Index and stay safe under the sun!

Maximum UV Index Levels in Callao for October

The chart shows the monthly maximum UV Index (UVI) for Callao in October, 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 October, the maximum UV index in Callao typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec14141412109101112131413
Data source: Callao October 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.

October Sunshine in Callao

In October, Callao, Peru, basks in an impressive 340 hours of sunshine, marking the month as one of the sunniest of the year. This upward trend in daylight hours, peaking after a series of consistently bright months from June to September, reflects a gradual increase in sunlight as the year transitions towards its end. With each month leading to October showing a steady rise, it’s clear that the coastal charm of Callao flourishes under the warm embrace of the sun, inviting both locals and visitors to enjoy the vibrant outdoor scenes. As winter approaches in the Northern Hemisphere, Callao stands out, offering a delightful escape into sunnier days.

Monthly Sunshine Duration in Callao: October Highlighted

The October sunshine duration represents the total number of hours Callao experiences direct sunlight during the month of October, excluding cloudy or obstructed periods. This chart compares the sunshine duration of October with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec270h301h321h320h331h313h327h335h326h340h333h338h
Data source: Callao October Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Callao During October

As October approaches in Callao, Peru, the likelihood of sunny weather begins to decline slightly, with a 37% chance of sun during this month. This marks a noticeable shift from the drier months of winter, where July enjoys the most sunshine at 55%. Interestingly, the percentage of sunny days has seen a general rising trend from the rainy season in early months—where January starts with a mere 6% and gradually increases through April's 25%. However, by October, we find ourselves transitioning into the wetter season again, as the likelihood diminishes, bringing a mix of sun and clouds. Overall, while October offers better prospects for sunshine compared to the earlier months, it hints at the upcoming rainier conditions that lie ahead in the year.

Percentage of Sunny Days in October in Callao

The chart illustrates the percentage of sunny days in Callao throughout the year, with October 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 Callao experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec6%15%12%25%50%40%55%48%41%37%17%22%
Data source: Callao October chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Callao in October

In Callao, Peru, the pattern of daylight duration reveals a captivating rhythm throughout the year. From January to March, the days bask in a consistent 12 hours of light, offering ample time to enjoy the coastal beauty. As the calendar shifts to April, daylight begins to contract slightly, settling at 11 hours from April through August, fostering a cozy ambiance during the cooler months. This trend reverses in September, when daylight returns to 12 hours, inviting a feeling of renewal. By October, the days remain long and vibrant, mirroring the optimism of the spring season ahead, while the balance of light and dark holds steady into November and December. Overall, Callao experiences a largely stable daylight pattern, punctuated by seasonal shifts that enhance its scenic allure.

Average Daylight Hours in Callao for October

The chart illustrates the variation in daylight duration in Callao throughout the year, with October highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec12h 43m12h 28m12h 8m11h 48m11h 32m11h 24m11h 28m11h 42m12h 1m12h 21m12h 39m12h 48m
Data source: Callao daylight hours, calculated by summing the hours between sunrise and sunset for each day.

October Winds in Callao

As October arrives in Callao, Peru, the breezy coastal charm continues to allure with an average wind speed of 3.0 m/s (7 mph), maintaining the momentum established in the preceding months. Following a gradual ascent from 2.1 m/s in January to a peak of 3.1 m/s in August, the winds remain consistent as summer slips into autumn. This moderate yet invigorating breeze, comparable to the previous months of September and July, creates a delightful atmosphere for ocean enthusiasts and wanderers alike. With November on the horizon, a slight dip in wind speed to 2.8 m/s (6 mph) is anticipated, foreshadowing a gentle transition in the coastal weather.

Average October Wind Speed in Callao

The chart displays monthly wind speed patterns in Callao, with values for each month shown alongside October's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how October's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.11.91.92.42.62.93.03.13.03.0 m/s2.82.6
Data source: Callao October wind data, generated using information from the Copernicus Climate Change Service.

How October Weather in Callao Compares to Other Months

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

October and January present notably different weather patterns. October features milder temperatures, with a minimum of 14°C (58°F) and an average of 17°C (63°F), alongside low precipitation of just 10 mm (0.4 in) over only 2 days, and a humidity level of 68%. In contrast, January brings warmer conditions, with minimum temperatures rising to 17°C (64°F) and an average of 21°C (71°F), peaking at 27°C (81°F). However, January also sees significantly higher precipitation at 47 mm (1.9 in), spanning 15 days, and increased humidity at 89%. For more detailed information, check out Callao weather in January.

October and February present notably different weather patterns. In October, temperatures range from a minimum of 14°C (58°F) to a maximum of 21°C (71°F), with an average of 17°C (63°F). The month experiences relatively low precipitation, totaling only 10 mm (0.4 in) over just 2 days, and a moderate humidity level of 68%. In contrast, February is warmer, featuring temperatures that span from 18°C (65°F) to a maximum of 28°C (82°F), with an average of 22°C (72°F). This month sees significantly higher precipitation at 53 mm (2.1 in) across 12 days, accompanied by increased humidity at 89%. For a more detailed look at February’s climate, you can check Callao weather in February.

In October, the weather is generally mild, with average temperatures ranging from a minimum of 14°C (58°F) to a maximum of 21°C (71°F) and relatively low humidity at 68%. Precipitation is minimal, with only about 10 mm (0.4 in) falling over just 2 days. In contrast, March experiences warmer conditions, with temperatures ranging from a minimum of 17°C (64°F) to a maximum of 27°C (81°F), accompanied by higher humidity at 90%. Additionally, March sees significantly more rainfall, totaling around 50 mm (2.0 in) over approximately 14 days. For more detailed information, you can check Callao weather in March.

In October, the weather tends to be mild with average temperatures ranging from a minimum of 14°C (58°F) to a maximum of 21°C (71°F). It experiences minimal precipitation, averaging just 10 mm (0.4 in) over 2 days, and humidity levels are a comfortable 68%. In contrast, April brings slightly warmer conditions with average temperatures between 15°C (60°F) and 26°C (79°F). However, it tends to be wetter, accumulating around 18 mm (0.7 in) of rain over 5 days, and humidity levels rise to 89%. For a more detailed look at April's climate, you can visit Callao weather in April.

In October, the weather features mild temperatures with a minimum of 14°C (58°F), averaging around 17°C (63°F) and reaching a maximum of 21°C (71°F). The month experiences light rainfall, with about 10 mm (0.4 in) of precipitation over just 2 days and a humidity level of 68%.

In contrast, May showcases slightly warmer conditions, with temperatures ranging from a minimum of 14°C (58°F) to an average of 19°C (66°F) and a maximum of 25°C (78°F). This month sees even less precipitation, totaling 9 mm (0.4 in) over only 1 day, but the humidity is higher at 83%. For a more detailed look at the weather in May, you can visit Callao weather in May.

In comparing the weather in October and June, both months feature similar maximum temperatures, reaching around 21°C (71°F), but October tends to be slightly cooler overall, with an average temperature of 17°C (63°F) compared to June's average of 18°C (64°F). Precipitation levels are identical at 10 mm (0.4 in), but while October experiences rainfall on 2 days, June remains dry with no recorded precipitation. Additionally, humidity levels are quite close, with October at 68% and June at 69%, indicating a similarly comfortable climate. For a closer look at June's weather specifics, check out Callao weather in June.

In comparing the weather of October and July, it's notable that both months exhibit similar temperature ranges, with October showing a minimum of 14°C (58°F), an average of 17°C (63°F), and a maximum of 21°C (71°F). July has comparable figures, with temperatures of 14°C (57°F) at the low end and maxing out at 21°C (69°F). However, October experiences slightly more precipitation, with 10 mm (0.4 in) over two days, unlike July, which records 11 mm (0.4 in) but with no rainy days. Furthermore, the humidity levels are higher in October at 68%, while July maintains a lower humidity of 56%. This seasonal difference provides a subtle contrast in comfort, with October feeling a bit damper compared to the drier July conditions, which you can explore further at Callao weather in July.

In comparing the weather between October and August, both months exhibit similar temperature ranges, with October averaging around 17°C (63°F) and August slightly cooler at 17°C (62°F). However, October experiences marginally higher maximum temperatures, reaching up to 21°C (71°F), while August peaks at 20°C (69°F). Notably, October has a higher humidity level at 68%, compared to August's more comfortable 50%. Precipitation levels remain the same for both months at 10 mm (0.4 in), but October sees rain over two days, whereas August is dry with no recorded rainfall. For a more detailed look at conditions in August, check Callao weather in August.

In comparing the weather of October and September, we find that both months have similar temperature ranges, with October featuring a minimum temperature of 14°C (58°F), an average of 17°C (63°F), and a maximum of 21°C (71°F). September, on the other hand, also has a minimum of 14°C (57°F), an average of 17°C (62°F), but a slightly lower maximum of 20°C (69°F). Precipitation levels remain consistent between the two months, with both experiencing 10 mm (0.4 in), but October has slightly more rainy days, totaling two compared to September's single day of rain. Notably, humidity in October is higher at 68%, while September sees a more comfortable 53%. For a detailed look at September's weather, consider checking Callao weather in September.

In October, the weather features mild temperatures with a minimum of 14°C (58°F) and a maximum of 21°C (71°F), alongside relatively low precipitation of 10 mm (0.4 in) over just 2 days. The average humidity stands at 68%, providing a comfortable atmosphere. In contrast, November shows a slight increase in temperature, with minimums at 15°C (59°F) and maximums reaching 23°C (74°F). Precipitation decreases slightly to 9 mm (0.4 in) over the same number of days, yet the humidity rises to 81%, making it feel a bit more humid than in October. For more detailed insights into November weather, check out Callao weather in November.

In October, temperatures in Callao range from a minimum of 14°C (58°F) to a maximum of 21°C (71°F), with an average of 17°C (63°F). The month experiences relatively low precipitation, totaling 10 mm (0.4 in) over about 2 rainy days, and a humidity level of 68%. By December, the weather is noticeably warmer, with temperatures ranging from 16°C (62°F) to 25°C (76°F) and an average of 20°C (68°F). Rainfall increases slightly to 17 mm (0.7 in) across 3 days, and humidity rises to 87%. For more detailed insights on the December weather, you can check Callao weather in December.

Compare Callao's Climate with Cities Worldwide

Conclusion: What to Expect From October Weather in Callao

October in Callao brings a delightful shift in weather, with milder temperatures and a pleasant coastal atmosphere. As the city transitions into the warmer months, the average temperature hovers around 17°C, offering a perfect respite from the chillier winters. Unlike the rainy season, October sees minimal precipitation, with just a couple of damp days, allowing for more sunshine and outdoor activities. The humidity remains comfortable at 68%, making it an ideal time to explore the vibrant surroundings without the oppressive heat typical of the peak summer months. For those interested in understanding more about the climate in this fascinating area, check out Callao Climate.