Weather by month for central American Samoa, the best months to go and how American Samoa's regions differ, scored from 10 years of climate data.
Aug, Sep
The highest month scores: comfortable temperatures, little rain and plenty of sun.
Highs 27°C · 16–17 rain days
Jun, Jul, Oct, Nov
Still good weather, just not quite the top months.
Highs 28°C · 20–23 rain days
Jan, Feb, Mar, Apr, May, Dec
No months with tough weather, but these are only average.
Highs 28°C to 29°C · 24–26 rain days
Weather by month
Average highs and lows, rain days, sunshine and our month score out of 10.
| Month | High / low | Rain days | Sunshine | Score |
|---|---|---|---|---|
| January | 29°C / 27°C | 26 days (316 mm) | 10.3 h/day | 4.7/10 |
| February | 29°C / 26°C | 25 days (410 mm) | 8.9 h/day | 4.8/10 |
| March | 29°C / 27°C | 26 days (232 mm) | 10.4 h/day | 4.7/10 |
| April | 29°C / 27°C | 25 days (293 mm) | 9.6 h/day | 4.7/10 |
| May | 28°C / 27°C | 24 days (234 mm) | 9.8 h/day | 4.8/10 |
| June | 28°C / 26°C | 20 days (181 mm) | 9.9 h/day | 6.0/10 |
| July | 28°C / 26°C | 20 days (131 mm) | 10.2 h/day | 6.3/10 |
| Best month: August | 27°C / 26°C | 16 days (100 mm) | 10.4 h/day | 6.4/10 |
| Best month: September | 27°C / 26°C | 17 days (96 mm) | 11.0 h/day | 6.4/10 |
| October | 28°C / 26°C | 22 days (183 mm) | 10.9 h/day | 6.2/10 |
| November | 28°C / 26°C | 23 days (271 mm) | 10.5 h/day | 6.0/10 |
| December | 28°C / 26°C | 26 days (331 mm) | 10.3 h/day | 4.9/10 |
Figures for central American Samoa; the country's best months are weighted across its cities. Best months are highlighted. How we score months
Month by month
29°C / 27°C · 26 rain days · 10.3 h sun
January is hot and wet, with highs around 28.6°C and rain on about 26 days. Rainfall totals 316mm, so showers are frequent and the air feels humid. The score sits at 4.7, an ok month rather than a standout, since rain can interrupt plans often.
29°C / 26°C · 25 rain days · 8.9 h sun
February stays warm at 28.5°C with the wettest totals of the year, 410mm of rain over about 25 days. Sun hours drop to 8.9, the lowest of the year, so skies are often grey. The score is 4.8, still just ok, reflecting the heavy rain.
29°C / 27°C · 26 rain days · 10.4 h sun
March highs reach 28.7°C with rain on about 26 days, though total rainfall eases to 232mm. Sun hours recover to 10.4. The month scores 4.7, an ok choice with frequent but somewhat lighter rain than January or February.
29°C / 27°C · 25 rain days · 9.6 h sun
April is similar to March, with a high of 28.7°C and rain on roughly 25 days totalling 293mm. Sun hours sit at 9.6. The score is 4.7, ok overall, as rain remains a regular feature of daily life.
28°C / 27°C · 24 rain days · 9.8 h sun
May brings a high of 28.4°C and rain days drop slightly to about 24, with 234mm of rainfall. Sun hours are 9.8. Scoring 4.8, it's an ok month, marking the start of a gradual shift toward drier conditions.
28°C / 26°C · 20 rain days · 9.9 h sun
June cools a touch to 28°C highs and rain becomes less frequent, around 20 days, with 181mm total. This marks the start of the better season, scoring 6, a good verdict as the wet pattern eases.
28°C / 26°C · 20 rain days · 10.2 h sun
July highs ease to 27.5°C, among the cooler months, with rain on about 20 days and 131mm total. Sun hours rise to 10.2. The score climbs to 6.3, good, as drier weather continues.
27°C / 26°C · 16 rain days · 10.4 h sun
August is the driest month, with just 100mm of rain over about 16 days and highs of 27.3°C. Sun hours reach 10.4. This gives the year's near-top score of 6.4, a good time for outdoor plans with less rain interruption.
27°C / 26°C · 17 rain days · 11.0 h sun
September keeps the dry trend, with 96mm of rain over about 17 days, the lowest rainfall total of the year, and highs of 27.3°C. Sun hours peak at 11. The score matches August at 6.4, good conditions throughout.
28°C / 26°C · 22 rain days · 10.9 h sun
October highs rise slightly to 27.6°C, with rain picking back up to about 22 days and 183mm total. Sun hours stay high at 10.9. The score is 6.2, still good, though rain becomes a bit more frequent again.
28°C / 26°C · 23 rain days · 10.5 h sun
November sees highs of 28°C with rain returning to about 23 days and 271mm total. Sun hours are 10.5. Scoring 6, it remains good, though the wetter pattern is clearly building back up.
28°C / 26°C · 26 rain days · 10.3 h sun
December highs reach 28.3°C with rain on about 26 days and 331mm total, close to January's wet conditions. Sun hours hold at 10.3. The score falls to 4.9, ok, as the wetter season firmly returns.
By trip type
City sightseeing
August and September are the driest months in American Samoa, with just 15.8 and 16.7 rain days and only 100mm and 96mm of rainfall. Sunshine hours peak at 10.4 and 11 hours, making these months comfortable for exploring towns and villages without constant rain.
Hiking & nature
For hiking, August and September offer the best trail conditions. Rainfall drops to 100mm and 96mm, fewer rain days mean drier paths, and highs of 27.3°C are a touch cooler than the rest of the year, reducing the risk of heat fatigue on exposed routes.
Keep planning
FAQ
Yes, August is one of the best months to visit, with a score of 6.4 out of 10. It has only 15.8 rain days and 100mm of rain, the lowest rainfall of the year. Highs reach 27.3°C and sunshine runs to 10.4 hours a day, making it a drier, sunnier window than the rest of the year.
February is rated just ok, scoring 4.8 out of 10. It's one of the wettest months, with 410mm of rain over 24.9 rain days, the highest monthly rainfall in the data. Sunshine is also lower, at 8.9 hours a day, so expect frequent showers and cloudier skies.
The best months are August and September, both scoring 6.4 out of 10. Rainfall drops to 100mm in August and 96mm in September, the two driest months, with rain days falling to 15.8 and 16.7. Sun hours also rise to 10.4 and 11 hours a day, giving the clearest, driest stretch of the year.
December scores 4.9 out of 10, rated ok rather than good. Rain picks back up to 331mm over 25.7 rain days, among the wetter months. Temperatures stay warm, with highs of 28.3°C, but the heavier rainfall makes it less reliable than the June to November stretch.
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