Chad has a highly diverse climate, with major differences between regions. Annual temperatures range from lows of -65°C in the coldest regions to highs of 30°C in the warmest areas. Annual precipitation ranges from 0mm in drier regions to 393mm in wetter parts of the country. Some regions receive significant snowfall, with up to 393cm annually, while other areas see little to none. The warmest areas are hot year-round while the coldest regions remain very cold, making Chad a country of sharp climate contrasts.

Temperature patterns across Chad vary by region, with distinct differences between areas. The Southwest is the warmest part of the country, with peak temperatures reaching 30°C and an annual average of 28°C. Cooler conditions are found in the South, where winter lows drop to -65°C and an annual average of -53°C. This 81°C difference in annual averages between regions means travellers can experience vastly different conditions depending on which part of Chad they visit. Regional temperature differences remain relatively consistent across seasons, with around 84°C of variation in both summer and winter. For example, Pala in the Mayo-Kebbi West Region averages 28°C annually, while Moundou in the Logone Occidental Region averages -53°C.

Chad sees notable variation in rainfall across its regions, ranging from 0mm to 393mm per year. The South receives the most rainfall, at approximately 393mm annually. The South is the driest, with around 0mm per year. Rainfall is distributed fairly evenly across the seasons, with no strong wet or dry period in most regions. The Southwest sees the most snowfall, with up to 393cm annually, while other parts of the country receive little to none. Travellers should pack rain gear when visiting wetter areas, while drier regions offer more favourable conditions throughout the year.