Bissau weather in March

In March, Bissau sees average daytime highs of 35°C and overnight lows near 23°C, with 0 mm of rain across 0 wet days and about 11.9 hours of daylight. It is the 1st-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 35°C through the month. The sky is clear or mostly clear about 70% of the time in March, and the air most often feels muggy.

Daylight stretches from about 11 h 48 min at the start of March to 12 h 06 min by month's end. Set against the rest of the year, March is Bissau's 1st-clearest and 4th-windiest month. For the whole year in context, see Bissau's year-round climate.

Daytime high
35°
1st warmest
Overnight low
23°
4th coldest
Rainfall
0 mm
0 wet days
Daylight
11 h 54 min
7:15 AM – 7:10 PM
Cloud cover
27%
1st clearest
Wind
11 km/h
4th windiest
Solar energy
6.83 kWh/m²
Travel score
3.3
out of 10

Bissau is capital city of Guinea-Bissau.

Density
5,674/km²
people per km²
Founded
1687

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 35°C through the month.

A typical March day in Bissau reaches about 35°C in the afternoon and slips back to 23°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 33°C and 38°C. Set against its neighbours, March runs on par with February and on par with April.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13522
23522
33522
43523
53523
63523
73523
83523
93523
103523
113523
123523
133523
143523
153523
163523
173523
183523
193523
203523
213523
223523
233523
243523
253523
263523
273523
283523
293523
303523
313524

How March really feels in Bissau

Once humidity and wind are folded in, March averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in March is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Bissau weather by month

How March compares with the rest of the year at a glance. March is the 1st-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 21°00.111.44.4
Feb34° / 22°10.111.63.6
Mar35° / 23°0011.93.3
Apr35° / 24°0012.33.6
May33° / 25°61.312.54.1
Jun32° / 26°871212.73.8
Jul30° / 25°35227.812.63.0
Aug29° / 25°45229.312.42.9
Sep30° / 25°30727.712.12.8
Oct31° / 25°1422211.73.2
Nov33° / 24°234.611.54.2
Dec33° / 22°20.311.34.4

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 70% of the time in March, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 12% of March, with mostly cloudy or overcast conditions the remaining 17%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18416
28416
38416
48416
58416
68416
78317
88317
98317
108218
118119
128119
138119
148119
158119
168119
178119
188119
198218
208218
218218
228218
238218
248218
258317
268317
278416
288515
298515
308515
318515

Chance of precipitation in March

Any precipitation

Bissau gets around 0 mm of rain over 0 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 0% and peaks near 0% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

Most of March feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, March lands in the muggy band about 35% of days. Sticky, muggy-or-worse air turns up on roughly 48% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
12320212610
22320222610
32220222611
42119222611
52119222612
62019222712
72019222712
81919222812
91819222913
101719222913
111619223013
121519223112
131419223312
141319223412
151219223512
161119223611
171019233711
18918233811
19918243911
20817244011
21717254011
22616254112
23515264212
24415264212
25414274313
26314274313
27313274414
28212264415
29212264515
30212264516
31211254517

Wind in March

Winds average 11 km/h in March.

Across March, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 h 48 min at the start of March to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over March. Sunrise moves from 7:23 AM to 7:05 AM, and sunset from 7:08 PM to 7:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.87:237:08
211.87:237:08
311.87:227:08
411.87:227:09
511.87:217:09
611.87:207:09
711.87:207:09
811.87:197:09
911.87:197:09
1011.97:187:09
1111.97:187:09
1211.97:177:09
1311.97:167:09
1411.97:167:09
1511.97:157:10
1611.97:157:10
1711.97:147:10
1811.97:137:10
1912.07:137:10
2012.07:127:10
2112.07:117:10
2212.07:117:10
2312.07:107:10
2412.07:097:10
2512.07:097:10
2612.07:087:10
2712.07:077:10
2812.17:077:10
2912.17:067:10
3012.17:057:10
3112.17:057:10

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 6.83 kWh/m².

For context, solar energy here swings from a low near 4.14 kWh/m² to a high of 7.03 kWh/m² in April across the year — March's 6.83 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
36.6Intense
46.6Intense
56.7Intense
66.7Intense
76.7Intense
86.7Intense
96.8Intense
106.8Intense
116.8Intense
126.8Intense
136.8Intense
146.8Intense
156.8Intense
166.8Intense
176.9Intense
186.9Intense
196.9Intense
206.9Intense
216.9Intense
226.9Intense
236.9Intense
246.9Intense
256.9Intense
267.0Intense
277.0Intense
287.0Intense
297.0Intense
307.0Intense
317.0Intense
Planning a trip in March

Hazard calendar for Bissau

In seasonPeak

In March, Bissau sits inside its dust season. The full year is below, with each hazard's peak months called out.

Bissau sits in the Atlantic hurricane belt; the season peaks August–October.

Bissau's monsoon runs July–September, when most of the year's rain falls.

Bissau sees seasonal dust haze (February–June), heaviest in June.

Atlantic hurricane
Monsoon
Dust
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is March a good time to visit Bissau?

Our two travel scores rate March for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

3.3
Sightseeing
8th-best month of the year
7.1
Beach & pool
6th-best month of the year

March is a weaker month for outdoor sightseeing in Bissau. The water and warmth also suit a beach or pool day.

What to pack for Bissau in March

From March's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In March, Bissau sees daytime highs around 35°C and nights near 23°C. Pack light clothes and sun protection.

light clothessun protection

Sea temperature near Bissau in March

The nearest coast averages about 26°C in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 27 km away) is warmest in November at about 29°C and coldest in February near 25°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan25Warm
Feb25Warm
Mar26Warm
Apr27Warm
May28Warm
Jun28Tropical
Jul28Tropical
Aug28Warm
Sep28Tropical
Oct29Tropical
Nov29Tropical
Dec27Warm

UV index in Bissau in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Bissau peaks around August 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 7 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 18UV 13Dec 20UV 7
UV index (midday)Level
Jan8Very high
Feb11Extreme
Mar13Extreme
Apr11Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec7Very high

Air quality in Bissau in March

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where March falls, not just the annual average.

Air quality in Bissau is worst in February — around 86 µg/m³ PM2.5 (unhealthy), about 5.5× the cleanest month (August, 16 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0306090JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorFeb 1884 µg/m³Aug 2116 µg/m³
PM2.5 (µg/m³)Level
Jan63Unhealthy
Feb86Unhealthy
Mar76Unhealthy
Apr51Poor
May53Poor
Jun50Poor
Jul24Moderate
Aug16Moderate
Sep18Moderate
Oct35Moderate
Nov45Poor
Dec58Unhealthy
Location & terrain

Where is Bissau?

Bissau sits at 11.9°N, 15.6°W, 13 m above sea level, in Guinea-Bissau. The nearest listed city is Sintra-Nema, 0.0 km away.

Topography around Bissau

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Bissau.

Within 3 km, the terrain around Bissau has only modest variations in elevation — a maximum elevation change of 43 m around an average of 14 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 48 m; within 80 km, only modest variations in elevation — a maximum elevation change of 61 m.

The land around Bissau is covered by artificial surfaces (63%) within 3 km, water (43%) within 16 km, and trees (41%) and water (32%) within 80 km.

3 km
43 m
16 km
48 m
80 km
61 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
March weather nearby: Sintra-Nema 0.0 km · Missira 1.0 km · Belem 1.0 km · Reino de Bandim 2.0 km · Luanda 2.0 km · Bairro Militar 2.0 km · Contumo 3.0 km · Santa-Luzia 3.0 km

Guinea-Bissau travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type C / E / F
220 V · 50 Hz
Prices
≈ 34% of US
price level, 2025
GDP per capita
$1,124
2025
Safe drinking water
24%
of population, 2024
Homicide rate
1.1
per 100k, 2017
Road deaths
32.2
per 100k/yr, 2019
Income group
Low
World Bank
Religion
Muslim 46%folk religions 31%Christian 19%other or unaffiliated 4%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Bissau (11.8636°, -15.5977°, elevation 13 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).