Suhu rata-rata tahunan di Samadua adalah +25.9°. Bulan terpanas adalah Juni (rata-rata siang +28.9°), dan terdingin Januari (rata-rata malam +23.1°). Chove cerca de 4459 mm por ano, com pico em November (568 mm). Data merupakan rata-rata iklim 60 tahun terakhir dan rekor dari 66 tahun pengamatan.
| Bulan | Siang | Malam | Curah hujan | Hari hujan | Rekor maks. | Rekor min. |
|---|---|---|---|---|---|---|
| Januari | +27.9° | +23.1° | 452 mm | 28 | +34.8° (1998) | +20.4° (1975) |
| Februari | +28.3° | +23.3° | 401 mm | 25 | +33.2° (1985) | +20.5° (1962) |
| Maret | +28.4° | +23.5° | 450 mm | 29 | +33.9° (1975) | +21° (1977) |
| April | +28.5° | +23.9° | 492 mm | 27 | +35.1° (1964) | +21.2° (1972) |
| Mei | +28.8° | +24.4° | 286 mm | 21 | +32.7° (1998) | +21.6° (1964) |
| Juni | +28.9° | +24.2° | 136 mm | 15 | +34.4° (2007) | +21° (1985) |
| Juli | +28.5° | +23.8° | 150 mm | 16 | +34.8° (1969) | +21.3° (1961) |
| Agustus | +28.2° | +23.7° | 209 mm | 19 | +32.4° (2013) | +21.6° (1990) |
| September | +27.9° | +23.6° | 308 mm | 22 | +33.9° (1979) | +21.3° (1961) |
| Oktober | +27.7° | +23.4° | 468 mm | 25 | +34.2° (2001) | +21.1° (1971) |
| November | +27.4° | +23.3° | 568 mm | 27 | +32.8° (2003) | +21.1° (1961) |
| Desember | +27.6° | +23.1° | 539 mm | 28 | +36.1° (1993) | +20.2° (1964) |