Sudan has no ideal window. No month clears the bar for comfortable travel outright, but Dec–Jan comes closest — rated fair rather than too hot, too cold or too wet.
Two rainy seasons
| Month | High °C | High °F | Rainy days | Verdict |
|---|---|---|---|---|
| January | 31.1 | 88 | 0% | Fair |
| February | 33.7 | 93 | 0% | Too hot |
| March | 37.0 | 99 | 0% | Too hot |
| April | 40.4 | 105 | 0% | Too hot |
| May | 42.1 | 108 | 2% | Too hot |
| June | 41.9 | 107 | 4% | Too hot |
| July | 38.3 | 101 | 30% | Too hot |
| August | 36.5 | 98 | 42% | Too hot |
| September | 38.7 | 102 | 19% | Too hot |
| October | 39.1 | 102 | 5% | Too hot |
| November | 35.5 | 96 | 0% | Too hot |
| December | 32.2 | 90 | 0% | Fair |
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.
January is the driest month, with rain on 0% of days and daytime highs near 31.1°C (88°F). August is the wettest, at 42%. The warmest month is May at 42.1°C (108°F); the coolest is January at 31.1°C (88°F). The record rules out too hot in Feb–Nov.