Monthly weather averages & travel planning

Africa › 🇹🇿 Tanzania › Dar es Salaam
Updated: March 2026
December is a fair time to visit Dar es Salaam (4/10). With 12 daily sunshine hours and only 18 rain days, this month delivers genuinely reliable outdoor conditions, ranking it 3rd sunniest of the year in Dar es Salaam. December suits travellers visiting for indoor culture, food, and architecture rather than outdoor activities. Pack accordingly for 18 potential rain days. January offers a similar profile at lower hotel rates if dates are flexible. Watch out for prolonged rain stretches: with 18 wet days, a fully outdoor itinerary is risky. Build in museum days and covered market visits as contingency. Planning tips: most accommodation categories have availability, and last-minute deals are common. The quieter streets and shorter queues can make this a genuinely enjoyable time to visit for the right type of traveller. Budget-conscious visitors will find the best value of the year in this period.
Dar es Salaam's December climate peaks at 30°C each afternoon before cooling to 25°C overnight. 12 daily sunshine hours and just 18 wet days mean the odds of a fine day are solidly in your favour. It is a reasonable time to visit, with a backup plan for the occasional shower.
30°C
86°F
Avg High
25°C
77°F
Avg Low
18 days
93 mm total
Rain Days
12h
per day avg
Sunshine
82%
Humid
Humidity
The narrow 5°C gap between daytime and overnight temperatures, characteristic of coastal cities with maritime moderation, means a single mid-layer works across the whole day. At 82% humidity, the 30°C daytime high feels 2-4°C warmer in practice: quick-dry fabrics and shade-seeking between noon and 3pm are the sensible response. UV index averages 8 this month, classed as high to very high. SPF 30+ sunscreen, a brim hat, and sunglasses are not optional between 10am and 4pm. Wind averages 16 km/h, light enough to be refreshing on warm days but noticeable in open coastal areas or elevated viewpoints. In Fahrenheit: 86°F average high, 77°F overnight low. Data sourced from Open-Meteo ERA5 climate reanalysis (1991–2020 normals).
Packing for Dar es Salaam in December means dressing for 30°C days and 25°C evenings. A lightweight linen or cotton shirt with loose-fit trousers or a sundress handles the 30°C daytime heat. Evening temperatures settle at 25°C, a modest 5°C drop that a light cardigan or denim jacket covers. For footwear, breathable walking sandals work for casual exploration, but closed-toe trainers are better for uneven surfaces in the historic centre. With 18 rain days expected, a compact travel umbrella is worth the bag space. A waterproof jacket is better than an umbrella if you plan full-day outdoor routes. At 82% average humidity, quick-dry synthetic or bamboo fabrics dry overnight and stay comfortable longer than cotton.
Local tip: Dar es Salaam sees heavy rain periods where a compact travel umbrella can feel inadequate. A packable waterproof jacket offers better coverage for prolonged downpours and leaves both hands free for maps and cameras.
December has no major festivals or public holidays in Dar es Salaam, which is one of its practical advantages for independent travellers. Attractions run at lower capacity than during peak event periods, queues are shorter, and accommodation is easier to find without needing to book many months in advance. Local restaurants, markets, and transport operate at a relaxed pace, making this an ideal time for visitors who prefer a more authentic, unhurried experience of everyday city life rather than large crowds drawn in by a single major headline event.
Based on 30°C average highs and 18 rainy days
Dar es Salaam's December climate is governed by the Inter-Tropical Convergence Zone (ITCZ), which draws moisture-laden trade winds across the region, producing the characteristic wet season rainfall of steamy tropical cities. Daytime heat peaks around 30°C, moderated slightly by afternoon convective showers. Overnight temperatures remain warm at 25°C because the humid air retains heat effectively. Climate data: Open-Meteo ERA5 (1991–2020).
Sunshine Hours
The average number of hours per day with direct sunlight. Calculated from satellite measurements. Days with more than 7 hours of sunshine are ideal for outdoor activities. Under 3 hours means overcast conditions dominate.
UV Index
A scale from 0-11+ measuring ultraviolet radiation intensity. UV 0-2: Minimal risk. UV 3-5: Moderate, wear sunscreen. UV 6-7: High, hat and SPF 30+ essential. UV 8-10: Very High, limit midday exposure. UV 11+: Extreme, seek shade between 10am-4pm.
Rain Days
A rain day is counted when precipitation exceeds 0.1mm. This threshold captures even light drizzle. Unlike total rainfall in mm, rain days tells you how often you might need an umbrella, which is useful for planning outdoor activities.
Humidity
Relative humidity as a percentage. Below 40%: Dry, skin and throat may feel parched. 40-60%: Comfortable, ideal for most people. 60-80%: Sticky, light breathable fabrics recommended. Above 80%: Muggy, heat feels more intense; quick-dry clothing is essential.
Dar es Salaam in December
December ranks 3rd sunniest of the year in Dar es Salaam, with an average 12 daily sunshine hours. The driest months are July, August, and September. January is the hottest month (31°C avg high); July is the coolest (27°C). From here, temperatures rise 1°C into January. Compared to last month (November: 30°C high, 18 rain days), December is similarly warm and equally dry. December is among the top three sunniest months to visit Dar es Salaam.
| Month | High | Low | Rain Days | Sun | Details |
|---|---|---|---|---|---|
| January | 31°C | 25°C | 11 | 11h | View |
| February | 31°C | 25°C | 10 | 11h | View |
| March | 30°C | 25°C | 23 | 10h | View |
| April | 29°C | 24°C | 26 | 10h | View |
| May | 28°C | 23°C | 20 | 10h | View |
| June | 28°C | 22°C | 9 | 11h | View |
| July | 27°C | 22°C | 6 | 11h | View |
| August | 28°C | 22°C | 7 | 11h | View |
| September | 29°C | 22°C | 7 | 11h | View |
| October | 29°C | 23°C | 12 | 12h | View |
| November | 30°C | 24°C | 18 | 12h | View |
| December | 30°C | 25°C | 18 | 12h | View |
January
11 rain days, 11h sun
February
10 rain days, 11h sun
March
23 rain days, 10h sun
April
26 rain days, 10h sun
May
20 rain days, 10h sun
June
9 rain days, 11h sun
July
6 rain days, 11h sun
August
7 rain days, 11h sun
September
7 rain days, 11h sun
October
12 rain days, 12h sun
November
18 rain days, 12h sun
December
18 rain days, 12h sun
Data Sources for Dar es Salaam
Climate normals represent 30-year averages (1991-2020). Individual years may vary.