Climate for Station: Ziguinchor, Senegal

Ziguinchor, located in the southern region of Senegal, displays a complex climate narrative with a slight warming trend over the long term, yet a recent decade of contrasting temperature changes. Despite a marginal shift in precipitation patterns, the area remains under the influence of concentrated rainfall events.

Climatic Setting of Ziguinchor

Ziguinchor is situated in a region characterised by a tropical savanna climate according to the Köppen classification. This climate is typically marked by a distinct wet season and a dry season, influenced by the proximity to the Atlantic Ocean and the Casamance River. The geographical setting contributes to the area's weather patterns, with the river enhancing humidity levels and the ocean moderating temperatures.

Temperature Trends: A Mixed Picture

Over the past decade, Ziguinchor has experienced a slight cooling in high temperatures, with a decrease of 0.28°C (0.50°F). In contrast, low temperatures have shown a modest increase of 0.04°C (0.07°F). However, when considering the all-time trends, the region exhibits an overall warming, with high temperatures rising by 0.36°C (0.65°F) and low temperatures increasing by 0.18°C (0.32°F). This suggests a long-term warming trend, although recent years have shown variability.

Temperature Extremes and Records

Ziguinchor has recorded an absolute maximum temperature of 46.0°C (114.8°F) and a minimum of 10.11°C (50.2°F). These extremes highlight the potential for significant temperature fluctuations within the region, influenced by both seasonal changes and broader climatic shifts.

Precipitation Patterns: Slight Adjustments

The Precipitation Concentration Index (PCI) for Ziguinchor shows a baseline of 26.36 compared to a current value of 26.33. This marginal decrease indicates a very slight shift towards a more even distribution of rainfall events. However, the PCI remains above 20, suggesting that precipitation is still highly concentrated in fewer, more intense events. This pattern aligns with the broader regional climate, where heavy rainfall episodes are common during the wet season.

Regional Climate Context and Considerations

Senegal's regional climate goals focus on adapting to and mitigating the impacts of climate change, including managing water resources and enhancing resilience to extreme weather events. Recent weather patterns in Ziguinchor, with their slight warming and concentrated precipitation, underscore the importance of these initiatives. The region's climate profile, with its intricate balance of temperature trends and precipitation patterns, serves as a critical data point for understanding broader climate dynamics in West Africa.