Guayas Climate

Last updated: January 18, 2025

Guayas, Ecuador, is characterized by a tropical savanna climate (Köppen-Geiger classification: Aw), which is marked by distinct seasonal temperature variations. The region experiences mild minimum temperatures averaging 14°C (58°F) in November, while the maximum temperatures can soar up to a sweltering 35°C (96°F) during the same month. Overall, Guayas maintains a pleasant average temperature of 25°C (77°F), creating an inviting atmosphere that appeals to both residents and visitors, especially in the transitional periods of the year.

Guayas temperature by month

In Guayas, Ecuador, temperature patterns exhibit a notable consistency throughout the year, characterized by mild minimums and warm maximums. The region begins the year with minimum temperatures around 16°C (61°F) in January and February, peaking at 14°C (58°F) in November, while average temperatures hover between 24°C (75°F) and 26°C (79°F) from March through May. Maximum temperatures experience slight fluctuations, generally maintaining highs around 33°C (91°F) to 35°C (96°F), particularly in the warmer months of November and December. The summer months, specifically from January to April, tend to be the warmest, while the cooler, drier months from June to August show a modest decrease in average temperatures, culminating in a comfortable climate that remains stable and inviting throughout the year.

Monthly Temperatures in Guayas, Ecuador

The chart illustrates Guayas's temperature patterns throughout the year, with values aggregated from various locations across the region. It highlights seasonal variations and temperature changes across the months.
JanFebMarAprMayJunJulAugSepOctNovDec787879797776747474757577
Data source: Guayas temperature data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

Guayaquil experiences a minimum temperature of 19°C (66°F) in September, rising to a maximum of 34°C (93°F) in January, making it a warm destination year-round. In contrast, La Libertad has slightly cooler temperatures, with a minimum of 18°C (65°F) in September and a maximum of 28°C (83°F) in March. For more detailed temperature information, visit monthly temperatures in Guayaquil and monthly temperatures in La Libertad.

Precipitation Patterns in Guayas

Precipitation in Guayas, Ecuador, exhibits a pronounced seasonal pattern, peaking during the early part of the year. January begins the rainy season with 260 mm (10.2 in) of rainfall over approximately 21 days. This trend intensifies in February and March, with precipitation reaching 398 mm (15.7 in) and 485 mm (19.1 in), respectively. April also maintains substantial rainfall at 365 mm (14.4 in), making these months crucial for the region's water supply and agriculture, as they support lush vegetation and crop growth.

As the year progresses into the latter half, precipitation begins to taper off significantly. June marks a notable decline with only 188 mm (7.4 in) of rain over 19 days, followed by further reductions in July (142 mm / 5.6 in) and August (94 mm / 3.7 in). By November and December, rainfall drops to 80 mm (3.1 in) and 172 mm (6.8 in), respectively, although the overall number of rainy days remains relatively consistent. This seasonal variability in precipitation not only impacts local ecosystems but also shapes the lifestyle and agricultural practices of the residents in Guayas.

Monthly Average Precipitation in Guayas, Ecuador

The average monthly precipitation in Guayas, providing insights into seasonal rainfall patterns and the region's precipitation trends throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec2603984853653011881429412312080172
Data source: Guayas precipitation data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.
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Sunshine Duration in Guayas

In Guayas, Ecuador, the duration of sunshine exhibits a remarkable seasonal trend, with a distinct increase as the year progresses. Beginning with 207 hours of sunshine in January, the region gradually transitions into sunnier months. Notably, March and April see a significant uptick, reaching 237 hours and 256 hours, respectively. This upward trend peaks during the middle of the year, particularly in July and August, where residents enjoy an impressive 291 hours and 299 hours of sunshine. This period is vital for agricultural activities, allowing crops to thrive under abundant sunlight.

As the year advances toward the end, there is a slight decrease in sunshine, yet the levels remain relatively high compared to earlier months. The sunshine hours dip to 246 hours in November and to 254 hours in December, indicating a gradual transition into a less sun-drenched season while still offering ample sunlight. Overall, Guayas enjoys a favorable climate characterized by long sunny days, particularly during the mid-year months, which are critical not only for agriculture but also for outdoor activities and tourism.

Monthly Sunshine in Guayas, Ecuador

Monthly sunshine duration represents the total hours of direct sunlight Guayas receives each month, excluding periods when the sun is obscured by clouds or other obstructions.
JanFebMarAprMayJunJulAugSepOctNovDec207h228h237h256h258h255h291h299h284h255h246h254h
Data source: Guayas sunshine duration data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.

Guayas UV Index Trends

In Guayas, Ecuador, the UV Index consistently falls within the extreme exposure category throughout the year, signaling a significant risk for skin damage from unprotected sun exposure. From January to April, the UV Index peaks impressively at 16, presenting a persistent warning for residents and visitors alike to take precautions, as the burn time is as little as 10 minutes. Even in May, the Index remains high at 13, reflecting the region's relentless sun intensity. Such conditions underline the importance of protective measures, especially during the first half of the year when UV levels are at their highest.

As the year progresses into the latter months, the UV Index begins to see a slight decrease, hovering around 11 to 14 from June to November. Despite this reduction, the exposure category remains classified as extreme, indicating that potential harm from the sun is still a serious concern. The year closes with a UV Index of 13 in both November and December, ensuring that vigilance against sun exposure remains a necessity year-round. This consistent intensity of ultraviolet radiation emphasizes the importance of effective sun protection strategies for anyone spending time outdoors in Guayas.

Monthly Maximum UV Index for Guayas, Ecuador

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Guayas. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec141616151311111214141313
Data source: Guayas UV Index data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.

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.

Daylight Hours in Guayas

In Guayas, Ecuador, daylight duration exhibits a remarkably stable pattern throughout the year, consistently averaging around 12 hours per day from January to May, and resuming this duration from August to November. This even distribution of daylight allows residents to engage in outdoor activities and agriculture without the seasonal fluctuations commonly experienced in other regions. The consistency of 12 hours of daylight promotes a sense of regularity, making it easier for locals to plan their daily routines and seasonal agricultural practices.

However, a slight shift occurs during the month of June and July, when daylight duration decreases to 11 hours. This minor reduction does not significantly disrupt the overall rhythm of life in Guayas, as the dry and stable climate compensates for the shorter days. By August, daylight resumes to the familiar 12-hour standard, reinforcing the region's unique equatorial advantage, where the sun's path remains relatively constant throughout the year. This stability in daylight duration not only supports a vibrant lifestyle but also fosters a predictable environment for various activities year-round.

Average Monthly Daylight Hours in Guayas, Ecuador

This chart shows the total daylight hours Guayas receives each month, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec732h729h725h722h720h719h719h721h724h728h731h733h
Data source: Guayas daylight hours, calculated based on aggregated data for various regional locations, determined by the times between sunrise and sunset.

Climate Highlights of Guayas's Popular Destinations

Guayaquil, Ecuador experiences a tropical climate characterized by warm temperatures and significant rainfall, particularly from January to April. Average monthly temperatures range from 24°C (75°F) in the cooler months of July and August to a peak of 27°C (80°F) in March and April. Precipitation is highest during the first quarter of the year, with March recording up to 495 mm (19.5 in) of rain, while the months of June to August are relatively drier. The city enjoys ample sunshine throughout the year, with the most hours recorded in July and August at 296 and 304 hours, respectively. For more detailed information, visit Guayaquil climate.

La Libertad, Ecuador, enjoys a tropical climate with warm temperatures year-round. Average monthly temperatures range from a minimum of 18°C (65°F) in September to a maximum of 28°C (83°F) in March. The area experiences distinct wet and dry seasons, with the highest rainfall in March (118 mm) and considerably less in the drier months of June (14 mm) and August (8 mm). Despite the rain, La Libertad benefits from abundant sunshine, particularly in April, which boasts 322 hours of sun. For more detailed information, visit La Libertad climate.

Conclusion

In conclusion, Guayas, Ecuador, presents a compelling climatic profile characterized by a well-defined tropical savanna climate, stable temperatures, significant sunshine, and consistent daylight durations. The region's temperature patterns, along with the high UV Index, underscore the need for effective sun protection, particularly in the summer months when exposure risks are at their peak. Meanwhile, the seasonal precipitation cycle and the ample availability of sunshine enhance agricultural productivity and outdoor lifestyles. With its predictable weather patterns and favorable living conditions, Guayas offers both residents and visitors an engaging and vibrant environment throughout the year, highlighting the importance of understanding and adapting to these climatic features.

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