A'ana Climate

Last updated: January 18, 2025

The climate of A'ana, Samoa, is characterized by a tropical rainforest classification (Koppen-Geiger Af), providing a warm and inviting environment year-round. The temperatures exhibit minimal variation, with a minimum of 22°C (72°F) in July, rising to an average of 27°C (81°F), and peaking at 30°C (86°F) in February. This stable tropical climate supports lush vegetation and diverse ecosystems, making A'ana a unique destination for both ecological study and leisurely travel.

A'ana temperature by month

A'ana, Samoa, exhibits a relatively stable temperature pattern throughout the year, reflecting its tropical climate. January to April sees consistent minimum and maximum temperatures, with lows starting at 23°C (75°F) in January and rising slightly to 25°C (77°F) by April, while daily highs remain around 30°C (86°F). The average temperature remains steady at 27°C (81°F). A slight cooling trend occurs from May to September, with July marking the coolest month at 22°C (72°F) minimum and 29°C (84°F) maximum. However, this drop is subtle, as the average temperatures hover between 26°C (80°F) and 27°C (81°F) during these months. As the year concludes, temperatures warm slightly again from October to December, stabilizing with average highs around 29°C (85°F) and maintaining the characteristic warm climate of the region. Overall, A'ana exhibits tropical warmth, with minor seasonal variations that contribute to its lush ecosystem.

Monthly Temperatures in A'ana, Samoa

The chart illustrates A'ana'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.
JanFebMarAprMayJunJulAugSepOctNovDec818181818181807980808080
Data source: A'ana 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.

In Satapuala, Fasitoouta, and Leulumoega, the climate features a consistent temperature range with a minimum of 23°C (74°F) in July and a maximum of 30°C (86°F) in February. For more detailed monthly temperature information, you can explore the links for [Satapuala](/climate/samoa/a-ana/satapuala.html), [Fasitoouta](/climate/samoa/a-ana/fasito-outa.html), and Leulumoega.

Precipitation Patterns in A'ana

A'ana, Samoa, experiences a distinct precipitation pattern throughout the year, marked by both intensity and frequency of rainfall. The wettest months are typically February and January, recording 424 mm (16.7 in) and 296 mm (11.7 in), respectively, with February also having the highest number of rainy days at 26. This heavy rainfall supports the lush tropical environment characteristic of the region. Following this peak, the precipitation decreases sharply in March to 172 mm (6.8 in) and continues to exhibit a downward trend into the drier months, with June receiving the least rainfall at 132 mm (5.2 in).

As the months progress towards the year-end, rainfall begins to increase again, particularly in November and December, which see 261 mm (10.3 in) and 350 mm (13.8 in), respectively. Notably, December also has 28 days of recorded precipitation, highlighting the consistent humidity as the wet season gains momentum. Overall, A'ana’s precipitation patterns underscore the region's tropical climate, characterized by a pronounced wet season and a slightly drier period in mid-year, supporting a diverse and vibrant ecosystem.

Monthly Average Precipitation in A'ana, Samoa

The average monthly precipitation in A'ana, providing insights into seasonal rainfall patterns and the region's precipitation trends throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec296424172191166132191111116204261350
Data source: A'ana precipitation data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.
Choose your preferred precipitation unit

Sunshine Duration in A'ana

In A'ana, Samoa, sunshine duration displays a notable seasonal trend, reflecting the region's tropical climate. The year starts with a substantial 229 hours of sunshine in January, which slightly dips to 214 hours in February. However, as the months progress into spring and summer, sunshine duration experiences a significant increase. March marks a turning point with 304 hours of sunshine, which continues to rise throughout the year, peaking in October with 309 hours. This progressive enhancement in sunlight hours highlights the transition into the drier, sunnier months, making this period particularly appealing for visitors seeking warmth and outdoor activities.

As the dry season settles in from October onwards, A'ana benefits from extended hours of sunshine, sustaining an average of 296 to 309 hours monthly until November. The sunlit days provide a vibrant backdrop to the lush landscape, fostering ideal conditions for exploration and tourism. Interestingly, while the summer months bask in abundant sunshine, the winter months take on a more subdued tone, with lower sunshine hours in January and February. Nevertheless, the overall trend demonstrates that A'ana experiences a balance of vibrant sunshine and necessary rainfall, contributing to its unique tropical ecosystem.

Monthly Sunshine in A'ana, Samoa

Monthly sunshine duration represents the total hours of direct sunlight A'ana receives each month, excluding periods when the sun is obscured by clouds or other obstructions.
JanFebMarAprMayJunJulAugSepOctNovDec229h214h304h274h279h270h276h295h304h309h296h286h
Data source: A'ana sunshine duration data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.

A'ana UV Index Trends

A'ana, Samoa, experiences consistently high UV Index levels throughout the year, posing notable sun exposure risks. The months of January to March remain at an extreme UV Index of 16, requiring only 10 minutes of unprotected sun exposure for potential skin damage. This pattern continues with the UV Index remaining high into the early months of spring, where it drops to 13 in April and gradually decreases to 11 in May. Despite the slight reduction, the exposure category remains extreme, emphasizing the need for sun protection even during these months.

As the year progresses into the winter months, the UV Index experiences a modest decline, with June and July reporting 9 and 10 respectively, classified as very high. However, this does not diminish the risk; instead, it highlights the importance of protective measures, including sunscreen and clothing, especially in peak sunlight hours. The UV Index peaks again from August to October, returning to extreme levels of 12 to 16, reinforcing that throughout the year, residents and visitors alike must remain vigilant against the sun's harmful rays to safeguard their skin health.

Monthly Maximum UV Index for A'ana, Samoa

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in A'ana. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec16161613119101214151515
Data source: A'ana 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 A'ana

A'ana, Samoa, enjoys a relatively stable pattern of daylight duration throughout the year, typical of its tropical location near the equator. For the first three months, January through March, the days are consistently long, averaging 12 hours of daylight. This consistent daylight sets the tone for a vibrant environment, allowing for ample opportunity to explore the rich natural beauty of the region. As the year progresses into April, daylight begins a gradual decline to 11 hours, a trend that continues through the mid-year months of May to August, creating a slightly shorter daylight period that can be ideal for enjoying cooler evenings.

As spring approaches, daylight duration begins to increase again in September, returning to 12 hours and maintaining this duration through the end of the year. This cyclical pattern provides the A'ana region with a balanced blend of light and shade, conducive to its lush vegetation and outdoor activities year-round. The consistent daylight also contributes to the overall tropical charm of A'ana, making it an appealing locale for visitors seeking both adventure and relaxation in a sun-drenched paradise.

Average Monthly Daylight Hours in A'ana, Samoa

This chart shows the total daylight hours A'ana receives each month, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec769h751h728h705h686h678h683h699h721h744h764h774h
Data source: A'ana daylight hours, calculated based on aggregated data for various regional locations, determined by the times between sunrise and sunset.

Climate Highlights of A'ana's Popular Destinations

Faleatiu, Samoa enjoys a tropical climate characterized by warm temperatures throughout the year, with average highs around 27°C (81°F) and minimal variation between months. January and February are the wettest months, receiving substantial rainfall, while June and August experience lower precipitation. Sunshine is abundant, particularly in October, with over 300 hours of sunshine, perfect for outdoor activities. With consistently mild temperatures and significant rainfall, Faleatiu presents a lush environment year-round. For more details, visit Faleatiu climate.

Fasitoouta, Samoa experiences a tropical climate characterized by warm temperatures and significant rainfall throughout the year. Average temperatures typically hover around 27°C (81°F), with maxima reaching up to 30°C (86°F) during the warmer months. The region sees the most precipitation from February (429 mm) to January (301 mm), while drier months, such as August (111 mm) and June (132 mm), offer slightly less rainfall. The sunshine duration is robust, peaking in October with 309 hours of sunshine. For more detailed information, check the [Fasitoouta climate](/climate/samoa/a-ana/fasito-outa.html).

Leulumoega, Samoa experiences a tropical climate with warm temperatures year-round, averaging around 27°C (81°F). Monthly maximum temperatures generally peak at 30°C (86°F) during the warmest months of January, April, May, and November. The rainy season varies, with February receiving the highest precipitation at 429 mm (16.9 in), while August sees significantly less at 111 mm (4.4 in). Sunshine is abundant, particularly from March to October, with October boasting the most hours at 309. For more detailed information, visit Leulumoega climate.

Nofoalii, Samoa experiences a tropical climate characterized by consistent warmth throughout the year, with average temperatures ranging from 26°C to 27°C (79°F to 81°F). The wettest months are February and November, receiving over 400 mm of rainfall, while the drier months, such as August, see around 110 mm. Sunshine hours peak in October with approximately 309 hours, contributing to the region's lush scenery. This climate offers a mix of wet and dry periods, making it a vibrant destination year-round. For more details on the climate, visit [Nofoalii climate](/climate/samoa/a-ana/nofoali-i.html).

Samatau, Samoa experiences a tropical climate characterized by warm temperatures year-round. January to April sees average highs around 30°C (86°F), while the coolest temperatures occur in July and August, averaging 26°C (79°F). Precipitation peaks in February with 397 mm (15.6 in), contributing to a rainy season from December to April. Despite the rain, the region enjoys considerable sunshine, with October boasting the highest hours at 309. For detailed information, visit Samatau climate.

Satapuala, Samoa experiences a tropical climate characterized by warm temperatures year-round, with average monthly highs around 27-30°C (81-86°F) and lows between 23-25°C (74-77°F). The area receives significant rainfall, peaking in February with 429 mm (16.9 in) and generally tapering off in the drier months of June and August. Sunshine hours vary, with March and October offering the most daylight at over 300 hours. This combination of warmth and moisture contributes to a lush, green environment. For more detailed information, visit Satapuala climate.

Conclusion

In conclusion, A'ana, Samoa, presents a captivating climate characterized by warm temperatures, high UV exposure, ample sunshine, and stable daylight durations throughout the year. With its tropical rainforest climate, the region experiences minimal temperature variation, ensuring pleasant conditions for both residents and visitors. The precipitation patterns, highlighted by pronounced wet and dry seasons, support the lush biodiversity that makes A'ana unique. Coupled with consistent daylight and extreme UV Index levels, effective sun protection and outdoor planning are essential for enjoying the beauty of this tropical paradise. Whether basking in the sun's rays or exploring the vibrant landscape, A'ana offers an enchanting experience that showcases the remarkable interplay of weather and climate in this Samoan gem.

Discover the Climate of A'ana's Places

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