Suhu rata-rata tahunan di Kutacane Lama adalah +26.1°. Bulan terpanas adalah Maret (rata-rata siang +31°), dan terdingin November (rata-rata malam +21.6°). Chove cerca de 4122 mm por ano, com pico em November (496 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 | +29.7° | +21.7° | 253 mm | 25 | +37.8° (1977) | +16.9° (1985) |
| Februari | +30.6° | +21.8° | 204 mm | 21 | +35.3° (2024) | +17.1° (2019) |
| Maret | +31° | +22.1° | 281 mm | 25 | +38.2° (1968) | +16.9° (1971) |
| April | +31° | +22.4° | 350 mm | 27 | +35.5° (2024) | +18° (1991) |
| Mei | +30.9° | +22.6° | 367 mm | 28 | +43.6° (1963) | +18.4° (1968) |
| Juni | +30.9° | +22.2° | 260 mm | 24 | +37.1° (1962) | +16.8° (1985) |
| Juli | +30.5° | +21.9° | 277 mm | 25 | +36.7° (1984) | +18.2° (2022) |
| Agustus | +30.3° | +21.8° | 350 mm | 27 | +35.3° (1987) | +18.2° (2008) |
| September | +30° | +21.8° | 418 mm | 28 | +35.1° (2002) | +18.2° (1961) |
| Oktober | +29.7° | +21.7° | 474 mm | 29 | +34.4° (2021) | +17.5° (1971) |
| November | +29.3° | +21.6° | 496 mm | 29 | +33.8° (2012) | +17.8° (1983) |
| Desember | +29.2° | +21.7° | 394 mm | 28 | +34.6° (2010) | +16.9° (1974) |