American Samoa Climate
Climate Zone and Historical Climate Data
American Samoa Climatic Classifications
| Code | Description | Group | Number of states/regions | States/regions |
|---|---|---|---|---|
| Aw | Tropical wet and dry or savanna | Tropical | 5 | Eastern Manu'a Rose Island Swains Island Western |
Summary: Most regions (5) in American Samoa lie in the Tropical wet and dry or savanna climate zone (Köppen: Aw). The mean average of annual temperatures range from a high of 28.53°C (83.35°F) in Swains Island to a low of 27.87°C (82.17°F) in Eastern.
Climate American Samoa: Weather By Month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Nov | Oct | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Record high °C (°F) | 28.93(84.07) | 28.82(83.88) | 29.0(84.2) | 29.12(84.42) | 29.08(84.34) | 28.86(83.95) | 28.55(83.39) | 28.35(83.03) | 28.41(83.14) | 28.5(83.3) | 28.71(83.68) | 28.77(83.79) | 29.12(84.42) |
| Average high °C (°F) | 28.73(83.71) | 28.7(83.66) | 28.94(84.09) | 28.88(83.98) | 28.56(83.41) | 28.09(82.56) | 27.61(81.7) | 27.4(81.32) | 27.56(81.61) | 27.89(82.2) | 28.2(82.76) | 28.42(83.16) | 28.25(82.85) |
| Daily mean °C (°F) | 28.43(83.17) | 28.4(83.12) | 28.66(83.59) | 28.64(83.55) | 28.35(83.03) | 27.9(82.22) | 27.37(81.27) | 27.2(80.96) | 27.36(81.25) | 27.65(81.77) | 27.94(82.29) | 28.14(82.65) | 28.0(82.4) |
| Average low °C (°F) | 27.46(81.43) | 27.43(81.37) | 27.83(82.09) | 27.83(82.09) | 27.42(81.36) | 26.92(80.46) | 26.36(79.45) | 26.3(79.34) | 26.41(79.54) | 26.61(79.9) | 26.99(80.58) | 27.16(80.89) | 27.06(80.71) |
| Record low °C (°F) | 27.41(81.34) | 27.41(81.34) | 27.8(82.04) | 27.74(81.93) | 27.28(81.1) | 26.72(80.1) | 26.1(78.98) | 26.09(78.96) | 26.21(79.18) | 26.45(79.61) | 26.88(80.38) | 27.07(80.73) | 26.09(78.96) |
| Average precipitation mm (inches) | 201.19(7.92) | 227.81(8.97) | 109.24(4.3) | 122.66(4.83) | 141.12(5.56) | 83.1(3.27) | 94.56(3.72) | 74.42(2.93) | 71.09(2.8) | 115.17(4.53) | 113.73(4.48) | 159.84(6.29) | 126.16(4.97) |
| Average precipitation days (≥ 1.0 mm) | 21.42 | 19.75 | 21.17 | 21.47 | 19.45 | 14.33 | 15.42 | 13.92 | 14.63 | 18.43 | 18.98 | 21.87 | 18.4 |
| Average relative humidity (%) | 75.61 | 76.04 | 74.5 | 75.37 | 76.38 | 77.55 | 77.6 | 77.22 | 77.54 | 76.98 | 76.14 | 75.46 | 76.37 |
| Mean monthly sunshine hours | 10.7 | 10.28 | 10.65 | 10.44 | 9.56 | 9.3 | 9.73 | 10.16 | 10.37 | 11.58 | 12.15 | 12.03 | 10.58 |
American Samoa Climate Graph
American Samoa’s Cities by Temperature
American Samoa’s states/regions ranking by average yearly temperature:
| Swains Island |
|
28.53°C | 83.35°F |
| Western |
|
27.87°C | 82.17°F |
| Manu'a |
|
27.87°C | 82.17°F |
| Rose Island |
|
27.87°C | 82.17°F |
| Eastern |
|
27.87°C | 82.17°F |
States/Regions
Popular places in American Samoa
- A`oloaufou Western
- Vasaaiga Eastern
- Lauagae Eastern
- `Amanave Western
- Mapusagafou Western
- Alao Eastern
- Amouli Eastern
- Masefau Eastern
- Vailoatai Western
- Ogefao Eastern
- Tafunafou Eastern
- Avaio Eastern
- Nu`uuli Eastern
- Falili Western
- Lalopua Eastern
- Asili Western
- Alega Eastern
- Onenoa Eastern
- Swains Swains Island
- Si`ufaga Manu'a
- Utumea East Eastern
- Fagali`i Western
- Mesepa Western
- Futiga Western
- Vaitogi Western
- Aasu' Western
- Malaeimi Western
- Aganoa Eastern
- Ta`u Manu'a
- A'oloau Western
- Sogi Western
- Leusoali`i Manu'a
- Fusi Manu'a
- Amaluia Western
- Fagatele Eastern
- Fiti`uta Manu'a
- Tagapofu Eastern
- Tula Eastern
- Tafuna Western
- A`asufou Western
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