Senegal experiences two distinct seasons that dictate packing requirements. The dry season runs November through May with daytime temperatures in Dakar averaging 24-27°C, while the rainy season from June through October brings temperatures of 27-32°C with humidity levels exceeding 80 percent. The Sahel zones including Tambacounda and Matam regularly exceed 40°C during March through May. Coastal areas including Dakar, Saint-Louis, and Mbour experience Atlantic winds that reduce perceived temperatures by 3-5 degrees year-round.
Lightweight cotton or linen clothing in long sleeves provides sun protection while allowing air circulation in Senegal's heat. Senegal is approximately 95 percent Muslim, and visitors to Touba cannot enter the Great Mosque of Touba wearing shorts or sleeveless shirts regardless of gender. Women visiting the mosque must cover their hair. In Dakar and coastal cities, Western casual dress is common, but shoulders and knees covered remains the standard for government offices, religious sites, and rural areas including the Casamance region and towns along the Senegal River. A lightweight scarf serves multiple functions: head covering for mosque visits, dust protection in the Ferlo Desert area, and sun shield in exposed locations.
Footwear must address multiple terrains. Dakar's Plateau district and the colonial quarter of Saint-Louis feature paved streets, but most residential areas in cities including Kaolack, Ziguinchor, and Thiès have unpaved or partially paved roads that become muddy during the rainy season. Closed-toe walking shoes with good tread handle urban environments. Sandals with ankle support work for beach areas in Mbour and Saly but are inadequate for the rocky paths in Niokolo-Koba National Park or the uneven ground at the Stone Circles of Senegambia. Rubber-soled water shoes are necessary for Lake Retba, where salt concentrations reaching 380 grams per liter crystallize on lakebeds and shorelines, creating sharp surfaces that cut unprotected feet.
Sun protection requires specific metrics in Senegal's latitude at 14-16 degrees north. Sunscreen must be SPF 50 or higher and reapplied every 90 minutes when outdoors. The Harmattan wind from the Sahara, occurring December through February, carries fine dust particles that reduce visibility but does not significantly reduce UV exposure. Wide-brimmed hats with chin straps prevent loss in coastal winds at Cap-Vert and during boat trips in the Sine-Saloum Delta. Sunglasses require UV400 protection minimum; polarized lenses reduce glare from water surfaces critical when visiting Djoudj National Bird Sanctuary or taking the ferry between Dakar and Gorée Island.
Mosquito-borne illness prevention centers on physical barriers and chemical deterrents. Senegal has endemic malaria in all regions, with highest transmission during and immediately after the rainy season. The CDC and WHO recommend antimalarial prophylaxis for all travelers. DEET-based repellents at 25-30 percent concentration provide 4-6 hours of protection; higher concentrations above 50 percent offer no additional benefit and increase skin absorption risks. Picaridin at 20 percent provides equivalent protection with less skin irritation. Permethrin-treated clothing kills mosquitoes on contact and withstands six wash cycles when applied according to manufacturer instructions. Long sleeves and pants after dusk reduce exposed skin when mosquito activity peaks. A portable mosquito net weighing 300-500 grams fits in luggage and provides sleeping protection in accommodations without screened windows, common in rural Casamance guesthouses and camps near Tambacounda.
Electronics require voltage adaptation and dust protection. Senegal uses 230V electrical current with Type C, D, E, and K outlets. Devices designed for 110V North American current require both a plug adapter and voltage converter; many modern phone and laptop chargers handle 110-240V automatically, but hair dryers, curling irons, and other heating elements typically do not. Power outages occur weekly in Dakar and daily in smaller cities, making external battery packs essential for maintaining phone charge. A 20,000mAh battery bank provides 4-5 full smartphone charges. Dust from unpaved roads and Harmattan winds infiltrates bags and pockets; ziplock bags protect phone charging ports, camera sensors, and other vulnerable openings.
Water purification addresses inconsistent municipal treatment. Dakar's tap water undergoes chlorination, but infrastructure built in the 1950s contains aging pipes that introduce contaminants after treatment. Outside Dakar, Saint-Louis, and Thiès, municipal treatment is minimal or absent. Bottled water is available in cities at 300-500 CFA francs per 1.5-liter bottle, but generates plastic waste and may be unavailable in national parks. A portable water filter with 0.2-micron absolute pore size removes bacteria and protozoa including Giardia and Cryptosporidium common in Senegalese water sources. Hollow-fiber filters process one liter in 60-90 seconds. Chemical treatment tablets containing chlorine dioxide require 30-minute contact time but weigh almost nothing, making them backup options for multi-day trips to Niokolo-Koba National Park or trekking in Bassari country near Kédougou.
Medical supplies must account for limited pharmacy access and language barriers. French is Senegal's official language, but pharmacists in rural areas may have limited French and primarily speak Wolof, Pulaar, or Jola. A basic first aid kit includes adhesive bandages for blisters common when walking Dakar's hilly Plateau area, antibiotic ointment for cuts that infect quickly in humid conditions, oral rehydration salts for diarrhea affecting 30-50 percent of travelers to West Africa, and ibuprofen or paracetamol for headaches and fever. Anti-diarrheal medication like loperamide provides symptomatic relief but should not be used if fever or bloody stools are present. Ciprofloxacin or azithromycin antibiotics for bacterial diarrhea require prescription in most countries but treat infections when medical care is hours away; carry copies of prescriptions when passing through customs. Personal prescription medications should be packed in original labeled containers with sufficient supply plus seven extra days in case of travel delays.
Photography equipment needs protection from dust and humidity. Camera sensors accumulate Saharan dust within days of exposure; a rocket blower removes particles without touching sensor surfaces, while cotton swabs with sensor cleaning solution remove stuck residue. Silica gel packets in camera bags absorb moisture during rainy season when humidity prevents evaporation. Memory cards fail in heat above 40°C, common in vehicles parked in Tambacounda or Matam; store cards in insulated cases separate from direct sun exposure. Drone use in Senegal requires approval from Agence Nationale de l'Aviation Civile et de la Météorologie, and flight is prohibited within 10 kilometers of any military installation, which includes portions of Dakar, the port areas of Saint-Louis, and zones along the Mauritanian border.
Bags and luggage selection balances security and mobility. Dakar's Blaise Diagne International Airport is 50 kilometers from the city center; travelers carrying only carry-on bags avoid checked baggage delays that can exceed 90 minutes. A 40-liter backpack meets most airlines' carry-on size limits while holding 5-7 days of clothing. Lockable zippers deter opportunistic theft on crowded sept-places shared taxis and on Dakar buses including the Dakar Dem Dikk network. A packable daypack of 15-20 liters carries water, snacks, and valuables during day trips to Gorée Island or walking through Saint-Louis's Sor district. Waterproof dry bags protect documents and electronics during pirogue rides in the Sine-Saloum Delta where waves splash passengers.