The best time to visit Southern China (Guangzhou, Guilin) is Oct–Feb. Month by month, the verdicts rate Oct–Mar as comfortable on both daytime heat and rainfall — 6 months in all.
Humid; wet Apr–Sep
| Month | High °C | High °F | Rainy days | Verdict |
|---|---|---|---|---|
| January | 20.7 | 69 | 18% | Go |
| February | 22.9 | 73 | 27% | Go |
| March | 26.2 | 79 | 38% | Go |
| April | 29.3 | 85 | 51% | Fair |
| May | 30.5 | 87 | 64% | Too wet |
| June | 30.9 | 88 | 77% | Too wet |
| July | 31.4 | 89 | 67% | Too wet |
| August | 31.5 | 89 | 67% | Too wet |
| September | 30.7 | 87 | 52% | Fair |
| October | 28.9 | 84 | 20% | Go |
| November | 26.2 | 79 | 18% | Go |
| December | 21.8 | 71 | 15% | Go |
Verdict combines mean daytime high with rainy-day frequency. “Rainy days” is the share of days in the month with at least 1 mm of rain.
December is the driest month, with rain on 15% of days and daytime highs near 21.8°C (71°F). June is the wettest, at 77%. The warmest month is August at 31.5°C (89°F); the coolest is January at 20.7°C (69°F). The record rules out too wet in May–Aug.