Climate and monthly weather forecastIriba, Chad

The climate of Iriba

Located in Chad, Iriba experiences a BWh or subtropical desert climate according to the Köppen climate classification. The subtropical desert climate is typically warm to hot all year round, with significant temperature variations between day and night.

Throughout the year, Iriba experiences high temperatures ranging from 30.5°C (86.9°F) to a sweltering 38.3°C (100.9°F) and low temperatures fluctuating between 14.2°C (57.6°F) and 26.2°C (79.2°F). Relative humidity is generally low, ranging from 13 to 66% on average, resulting in a dry, arid atmosphere. The visibility is consistently good, averaging 10km (6.2mi) throughout the year.

Iriba receives minimal rainfall in a year, with the majority of the rain falling between May to August. The highest amount of rainfall is recorded at 197mm (7.76") in August. The number of rainfall days increases dramatically from May, peaking in August with 23.3 days.

Among the unique weather patterns in Iriba is the significant difference between day and night temperatures, and the concentrated rainfall during mid-year, with virtually no rainfall from September to April.

The best time to visit Iriba

Given the subtropical desert climate of Iriba, the best time to visit would primarily depend on individual heat tolerance. Generally, the cooler months from December through to February present the most comfortable climatic conditions for a visit. During these months, the high temperatures range from 30.5°C (86.9°F) to 34.6°C (94.3°F) and the low temperatures range from 14.2°C (57.6°F) to 19.5°C (67.1°F). The relative humidity is on the lower end of the scale, and the number of sunshine hours is consistently high, with 10 hours per day on average.

The worst time to visit Iriba

Unless heat and high humidity are favored, the months of May through to August may prove quite challenging for visitors. During this period, temperatures can reach a high of 38.3°C (100.9°F) and a low of 26.2°C (79.2°F). Additionally, rainfall is at its peak, particularly in August when rainfall amounts to 197mm (7.76").

Spring weather in Iriba

Considering Iriba's subtropical desert climate, the region does not experience true spring weather. However, March and April are transitional months, which move from the cooler winter months to the hotter and more humid summer months. High temperatures climb from 36.7°C (98.1°F) in March up to 38.3°C (100.9°F) in April; meanwhile, lows rise from 19.5°C (67.1°F) to 21.8°C (71.2°F). Rainfall is rare, with only 1mm (0.04") falling in April over a period of 1.5 days on average.

Summer weather in Iriba

Summer in Iriba, which spans May to August, brings more extreme temperatures, which peak at 38°C (100.4°F). The lowest temperatures still remain quite high, between 24.3°C (75.7°F) and 26.2°C (79.2°F). The amount of rainfall increases significantly, especially from June onwards with maximum rainfall recorded in August at 197mm (7.76") spread over 23.3 days.

Autumn weather in Iriba

Iriba does not have a traditional autumn, but September and October can be considered as transitional months as they mark the shift from the wet and hot summer to the drier and cooler winter. High temperatures in these months range from 34.3°C (93.7°F) to 33.3°C (91.9°F) and lows from 24.1°C (75.4°F) to 19.6°C (67.3°F). Rainfall decreases dramatically across this period, from 54mm (2.13") in September to 11mm (0.43") in October.

Winter weather in Iriba

Winter months in Iriba, from November to February, are characterized by cooler temperatures and virtually no rainfall. High temperatures fluctuate from 32.8°C (91°F) in November to a mild 30.5°C (86.9°F) in both December and February. Low temperatures, on the other hand, drop from 19.6°C (67.3°F) in November to 14.2°C (57.6°F) in December and rise to 14.9°C (58.8°F) by February. These months exhibit the least relative humidity, making it the driest period for Iriba.

Weather in January

January in Iriba, Chad is characterized by a modest daylight length of 11.4 hours and temperatures ranging from 14.2°C (57.6°F) to 31.6°C (88.9°F). The month brings a fresh breeze, with wind speeds hitting up to 17.4km/h (10.8mph) indicating a relatively windier environment compared to the remaining seasons. Weather in January »

Weather in February

As the second month rolls in, February ushers in the early signs of summer for Iriba. Temperatures tend to climb a bit higher, though they never exceed 34.6°C (94.3°F). Relative humidity is slightly lower than the previous month, leading to even drier conditions. Weather in February »

Weather in March

March indicates further progression into summer with marginally warmer temperatures. The city's weather starts to experience slight changes, notably shifting winds. Wind speeds striking a balance at 16.6km/h (10.3mph) demonstrate a calming influence of the wind compared to the start of the year. Weather in March »

Weather in April

April sees Iriba firmly rooted in the summer season, with the temperature soaring up to 38.3°C (100.9°F). These hotter conditions coincide with longer days, contributing to the overall feel of summer. Despite occasional clouds, visibility remains mostly unobstructed throughout the month. Weather in April »

Weather in May

Advancing to May, the heat continues to persist in Iriba, albeit at slightly cooler levels. The summer season begins to recede, giving way to the start of a sporadic wet season. However, it is the increased cloud cover that is the defining characteristic of the month, accounting for 9% of the sky. Weather in May »

Weather in June

As summer transitions towards the rainy season in June, Iriba starts experiencing a substantial increase in humidity, rising to 32%. The cooling rain showers bring relief from the scorching heat. Despite the onset of the rainy season, the city still manages to enjoy a decent amount of sunshine. Weather in June »

Weather in July

July marks the height of the rainy season in Iriba, with precipitation levels peaking at 97mm (3.82") over a span of 17.9 days. Yet, sunlight is not scarce as the city benefits from just over 9 hours of sunshine daily. Winds retain a mild velocity providing a soothing effect against the humidity. Weather in July »

Weather in August

August stands as the rainiest month in Iriba with a whopping 197mm (7.76") over 23.3 days. Despite the rain, the city's temperature stays comfortable, never falling below 22.9°C (73.2°F). The slight drop in daylight hours and the increased cloud cover may affect outdoor plans. Weather in August »

Weather in September

As September rolls in, Iriba begins to witness a decline in rainfall, signaling the end of the heavy rains. Apart from the lessened precipitation, the city experiences a receding cloud cover percentage, paving the way for more radiant days. Weather in September »

Weather in October

October brings the return of summer as Iriba transitions away from the rainy season. The month sees a rapid drop in humidity levels to 28% under a typically clear sky. A significant decrease in rainfall indicates virtually dry conditions across the city. Weather in October »

Weather in November

November consolidates the arrival of summer in Iriba. An increase in wind speeds to 14.9km/h (9.3mph) and reduced rainfall re-establishes the dry phase of the year. The extended daylight hours and stable UV index make it conducive for outdoor activities. Weather in November »

Weather in December

Concluding the year, December remains a predominantly warm month in Iriba. The blend of warm daytime temperatures and cool evenings make it a comfortable period. With no rainfall, visitors can expect a dry and clear month perfect for sightseeing. Weather in December »