Suhu rata-rata tahunan di Lamno adalah +26.9°. Bulan terpanas adalah Maret (rata-rata siang +29.9°), dan terdingin November (rata-rata malam +24°). Chove cerca de 2783 mm por ano, com pico em November (376 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 | +29.4° | +24° | 163 mm | 18 | +35.5° (2016) | +20.8° (2023) |
| Februari | +29.9° | +24.2° | 141 mm | 17 | +32.1° (2010) | +21.6° (2018) |
| Maret | +29.9° | +24.4° | 212 mm | 24 | +33.3° (2010) | +21.4° (2017) |
| April | +29.8° | +24.8° | 250 mm | 26 | +36.4° (1964) | +22.1° (2023) |
| Mei | +29.8° | +25.1° | 247 mm | 23 | +33.3° (1998) | +23° (1975) |
| Juni | +29.9° | +25.1° | 151 mm | 18 | +32.9° (2003) | +21.7° (1967) |
| Juli | +29.5° | +24.7° | 184 mm | 19 | +34.5° (1998) | +22.3° (1965) |
| Agustus | +29.2° | +24.5° | 193 mm | 21 | +32.7° (1961) | +22.4° (2025) |
| September | +28.9° | +24.2° | 258 mm | 22 | +31.9° (1974) | +21.9° (2025) |
| Oktober | +28.6° | +24.1° | 336 mm | 26 | +31.8° (1991) | +22° (2021) |
| November | +28.6° | +24° | 376 mm | 27 | +34.1° (1980) | +21.6° (2025) |
| Desember | +28.9° | +24° | 272 mm | 23 | +33.4° (1984) | +21.5° (1976) |