SeasonMapPhnom Penh vs Sihanoukville: which is better, month by month
Sihanoukville beats Phnom Penh in 10 of 12 months — its lead peaks in April (78 vs 54) — and they are within 3 points in July to August.
Each place is scored under the lens that suits its type — they are different kinds of destination, so the scores are each place at its own best. Comfort is SeasonMap's 0–100 estimate from ERA5 climate normals, not a forecast.
Phnom Penh vs Sihanoukville — all 12 months
| Month | Phnom Penh | Sihanoukville | Winner | Gap |
|---|---|---|---|---|
| January | 77Bsweltering, dry | 92Ssweltering, a little rain | Sihanoukville | 15 |
| February | 74Bsweltering, dry | 90Ssweltering, a little rain | Sihanoukville | 16 |
| March | 63Csweltering, dry | 85Asweltering, rainy | Sihanoukville | 22 |
| April | 54Dsweltering, a little rain | 78Bsweltering, soaked, muggy air | Sihanoukville | 24 |
| May | 48Fsweltering, soaked, muggy air | 63Csweltering, soaked, clean air | Sihanoukville | 15 |
| June | 53Dsweltering, soaked, muggy air | 61Csweltering, soaked, clean air | Sihanoukville | 8 |
| July | 56Dsweltering, soaked, clean air | 56Dsweltering, soaked, clean air | Tie | 0 |
| August | 57Dsweltering, soaked, clean air | 60Csweltering, soaked, clean air | Tie | 3 |
| September | 47Fsweltering, soaked, clean air | 53Dsweltering, soaked, clean air | Sihanoukville | 6 |
| October | 50Dsweltering, soaked, muggy air | 57Dsweltering, soaked, clean air | Sihanoukville | 7 |
| November | 64Csweltering, rainy, clean air | 74Bsweltering, soaked, clean air | Sihanoukville | 10 |
| December | 75Bsweltering, a little rain, clean air | 87Asweltering, a little rain, clean air | Sihanoukville | 12 |
A month is a tie when the two are within 3 points. The widest gap is April (54 vs 78). Tap a month for that month's temperature, rain, humidity and air quality side by side.