Climate profileUnited States of America
National Park of American Samoa
- Annual mean
- 27.6 °C
- Warmest month
- April
- Wettest month
- January
Park climate1991–2020 climate normals3 m source elevationNASA POWER
Twelve month average temperature, precipitation, and daylight data based on representative coordinates
Annual Climate Normals and Monthly Atmospheric Patterns for the National Marine Sanctuary of American Samoa
Examine the long term climate normals for the National Marine Sanctuary of American Samoa, featuring monthly averages derived from the 1991 to 2020 climatology period. These measurements provide a consistent baseline for temperature, relative humidity, average daily precipitation, and wind speeds at a representative point. Data serves as a reference for atmospheric patterns within this protected area, distinct from short term weather forecasts or local microclimate variations.
Annual climate pattern
Evaluating twelve months of consistent thermal ranges and shifting daily rainfall averages at sea level
Monthly Temperature and Precipitation Trends in National Marine Sanctuary of American Samoa
Long-term climate normals for the National Marine Sanctuary of American Samoa show stable thermal patterns, with average monthly mean temperatures varying by less than two degrees Celsius throughout the year. Daily precipitation averages exhibit greater fluctuation, declining from over eight millimeters in January to about two millimeters in August, captured at a representative sea-level coordinate.
- Annual mean
- 27.6 °C
- Warmest month
- April
- Coolest month
- August
- Wettest month
- January
Twelve-month climate
Analyzing average temperature bounds, daily precipitation rates, wind speed, and daylight hours.
National Marine Sanctuary of American Samoa Monthly Climate and Weather by Month Patterns
Browse the annual climatological baseline for the National Marine Sanctuary of American Samoa using twelve monthly records modeled from long-term observations between 1991 and 2020. Comparing average temperature bounds, daily precipitation rates, wind speed, and calculated daylight hours reveals the monthly shifts across the protected marine environment.
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | 28 °C26.5° to 29.2° | 8.8 mm/day | 81.4% | 5 m/s | 12.8 hours |
| February | 28.1 °C26.7° to 29.2° | 8.5 mm/day | 81.1% | 5.1 m/s | 12.5 hours |
| March | 28.1 °C26.8° to 29.3° | 6.7 mm/day | 80.9% | 4.5 m/s | 12.1 hours |
| April | 28.2 °C26.9° to 29.3° | 6.1 mm/day | 80.4% | 4.8 m/s | 11.7 hours |
| May | 27.8 °C26.5° to 29° | 4.4 mm/day | 79.7% | 5.6 m/s | 11.3 hours |
| June | 27.4 °C26.1° to 28.6° | 2.8 mm/day | 79.5% | 6.7 m/s | 11.2 hours |
| July | 26.9 °C25.4° to 28.1° | 2.3 mm/day | 79.5% | 6.7 m/s | 11.2 hours |
| August | 26.7 °C25.3° to 28° | 2.1 mm/day | 79.3% | 6.6 m/s | 11.5 hours |
| September | 27 °C25.6° to 28.1° | 3.1 mm/day | 79.7% | 6.7 m/s | 11.9 hours |
| October | 27.2 °C25.9° to 28.4° | 4.9 mm/day | 80.5% | 6 m/s | 12.3 hours |
| November | 27.6 °C26.1° to 28.8° | 7.4 mm/day | 81.1% | 5.3 m/s | 12.7 hours |
| December | 27.9 °C26.3° to 29.1° | 7.6 mm/day | 80.9% | 5.1 m/s | 12.8 hours |
Calculated climate highlights
Calculated monthly climate averages identifying seasonal shifts in temperature, wind, and precipitation
Monthly Climate Highlights for National Marine Sanctuary of American Samoa
Long-term climate normals from a representative coastal coordinate highlight the warmest, coolest, wettest, and driest periods based on thirty years of seasonal observations. Evaluating calculated monthly averages rather than absolute weather extremes provides a clear baseline of typical precipitation rates, humidity levels, and daylight duration.
- Warmest month
- April28.2 °C
- Coolest month
- August26.7 °C
- Wettest month
- January8.8 mm/day
- Driest month
- August2.1 mm/day
- Most humid month
- January81.4%
- Windiest month
- September6.7 m/s
- Longest daylight
- December12.8 hours
Interactive climate map
Compare National Park Climate Data Through an Interactive Global Map
Visit the MoriAtlas climate map to compare long-term monthly temperature and precipitation metrics across national parks. This visual interface helps you understand seasonal variations at specific protected area coordinates to deepen your knowledge of global park geography and environmental characteristics.
Other park climates
Compare monthly temperature, precipitation, and wind patterns across diverse protected landscapes.
Compare Climate Profiles of Other Protected Areas with National Marine Sanctuary of American Samoa
Standardized monthly climate normals allow readers to contrast the seasonal temperature rhythms and precipitation cycles of the National Marine Sanctuary of American Samoa with other marine and terrestrial parks. Examining monthly daylight, wind, and humidity across regional conservation areas clarifies how distinct geographic settings shape local atmospheric patterns.
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MoriAtlas Explorer
Continue Exploring the National Marine Sanctuary of American Samoa's Protected Landscape
Deepen your understanding of the National Marine Sanctuary of American Samoa by examining its precise geographic placement and protected marine boundaries. This area offers significant insight into the conservation landscapes of American Samoa and the wider South Pacific region. Continue your atlas exploration to trace its unique ecological and geographic features.
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