Fortaleza weather in August

In August, Fortaleza sees average daytime highs of 30°C and overnight lows near 24°C, with 8 mm of rain across 2.3 wet days and about 11.9 hours of daylight. It is the 1st-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 84% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of August to 11 h 54 min by month's end. Set against the rest of the year, August is Fortaleza's 2nd-clearest and 2nd-windiest month. For the whole year in context, see Fortaleza's year-round climate.

Daytime high: 30°; 1st warmest
Overnight low: 24°; 2nd coldest
Rainfall: 8 mm; 2.3 wet days
Daylight: 11 h 54 min; 5:42 AM – 5:35 PM
Cloud cover: 21%; 2nd clearest
Wind: 23 km/h; 2nd windiest
Solar energy: 6.3 kWh/m²
Travel score: 6.7; out of 10

Fortaleza is human settlement in Brazil.

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

← July Fortaleza year-round climate September →Best places to visit in August

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical August day in Fortaleza reaches about 30°C in the afternoon and slips back to 24°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 31°C. Set against its neighbours, August runs on par with July and on par with September.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30
Avg low (°C)	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	25	25

	Avg high (°C)	Avg low (°C)
1	30	24
2	30	24
3	30	24
4	30	24
5	30	24
6	30	24
7	30	24
8	30	24
9	30	24
10	30	24
11	30	24
12	30	24
13	30	24
14	30	24
15	30	24
16	30	24
17	30	24
18	30	24
19	30	24
20	30	24
21	30	24
22	30	24
23	30	24
24	30	24
25	30	24
26	30	24
27	30	24
28	30	24
29	30	24
30	30	25
31	30	25

How August really feels in Fortaleza

Once humidity and wind are folded in, August 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

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

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

Fortaleza weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 9th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	29° / 25°	94	18.2	12.2	4.4
Feb	29° / 25°	132	20.1	12.1	4.0
Mar	29° / 25°	194	25.4	12	3.6
Apr	29° / 25°	248	25.5	11.9	3.5
May	29° / 25°	129	19.6	11.8	4.4
Jun	29° / 25°	72	13.7	11.8	5.3
Jul	29° / 24°	36	7.7	11.8	6.2
Aug	30° / 24°	8	2.3	11.9	6.7
Sep	30° / 25°	4	1.2	12	6.8
Oct	30° / 25°	5	1.6	12.1	6.6
Nov	30° / 26°	7	2.3	12.2	6.3
Dec	30° / 26°	27	8.5	12.2	5.5

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 84% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 10% of August, with mostly cloudy or overcast conditions the remaining 6%. Skies tend to open up as the month goes on.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	92	92	93	93	93	94	94	94	94	93	93	94	94	94	94	94	93	93	93	93	94	94	94	94	95	95	95	96	96	95	96
Cloudier (%)	8	8	7	7	7	6	6	6	6	7	7	6	6	6	6	6	7	7	7	7	6	6	6	6	5	5	5	4	4	5	4

	Clearer (%)	Cloudier (%)
1	92	8
2	92	8
3	93	7
4	93	7
5	93	7
6	94	6
7	94	6
8	94	6
9	94	6
10	93	7
11	93	7
12	94	6
13	94	6
14	94	6
15	94	6
16	94	6
17	93	7
18	93	7
19	93	7
20	93	7
21	94	6
22	94	6
23	94	6
24	94	6
25	95	5
26	95	5
27	95	5
28	96	4
29	96	4
30	95	5
31	96	4

Chance of precipitation in August

Any precipitation

Fortaleza gets around 8 mm of rain over 2.3 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 8% and peaks near 11% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	11	11	10	10	9	9	9	9	9	8	8	8	8	7	7	7	7	7	7	7	7	7	6	6	6	6	6	6	5	5	5

	Rain chance (%)
1	11
2	11
3	10
4	10
5	9
6	9
7	9
8	9
9	9
10	8
11	8
12	8
13	8
14	7
15	7
16	7
17	7
18	7
19	7
20	7
21	7
22	7
23	6
24	6
25	6
26	6
27	6
28	6
29	5
30	5
31	5

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the oppressive band about 59% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Muggy (%)	44	44	44	44	44	43	43	43	43	43	43	43	43	43	43	43	43	42	42	41	41	40	39	38	38	37	36	36	36	36	36
Oppressive (%)	56	56	56	56	56	57	57	57	57	57	57	57	57	57	57	57	57	58	58	59	59	60	61	62	62	63	64	64	64	64	64

	Muggy (%)	Oppressive (%)
1	44	56
2	44	56
3	44	56
4	44	56
5	44	56
6	43	57
7	43	57
8	43	57
9	43	57
10	43	57
11	43	57
12	43	57
13	43	57
14	43	57
15	43	57
16	43	57
17	43	57
18	42	58
19	42	58
20	41	59
21	41	59
22	40	60
23	39	61
24	38	62
25	38	62
26	37	63
27	36	64
28	36	64
29	36	64
30	36	64
31	36	64

Wind in August

Winds average 23 km/h in August.

Across August, daily wind ranges from about 22 km/h on the calmest days to 24 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	22	22	22	22	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	24	24	24	24	24	24	24	24
Feels	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy

	Wind speed (km/h)	Feels
1	22	breezy
2	22	breezy
3	22	breezy
4	22	breezy
5	23	breezy
6	23	breezy
7	23	breezy
8	23	breezy
9	23	breezy
10	23	breezy
11	23	breezy
12	23	breezy
13	23	breezy
14	23	breezy
15	23	breezy
16	23	breezy
17	23	breezy
18	23	breezy
19	23	breezy
20	23	breezy
21	23	breezy
22	23	breezy
23	23	breezy
24	24	breezy
25	24	breezy
26	24	breezy
27	24	breezy
28	24	breezy
29	24	breezy
30	24	breezy
31	24	breezy

Sunrise & sunset in August

DaylightNight

Daylight runs from about 11 h 48 min at the start of August to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over August. Sunrise moves from 5:45 AM to 5:36 AM, and sunset from 5:35 PM to 5:32 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	11.8	11.8	11.8	11.8	11.8	11.8	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9
Sunrise (AM)	5:45	5:45	5:45	5:45	5:45	5:44	5:44	5:44	5:44	5:44	5:43	5:43	5:43	5:43	5:42	5:42	5:42	5:41	5:41	5:41	5:40	5:40	5:40	5:39	5:39	5:38	5:38	5:38	5:37	5:37	5:36
Sunset (PM)	5:35	5:35	5:35	5:35	5:35	5:35	5:35	5:35	5:35	5:35	5:35	5:35	5:35	5:35	5:35	5:35	5:34	5:34	5:34	5:34	5:34	5:34	5:34	5:33	5:33	5:33	5:33	5:33	5:32	5:32	5:32

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.8	5:45	5:35
2	11.8	5:45	5:35
3	11.8	5:45	5:35
4	11.8	5:45	5:35
5	11.8	5:45	5:35
6	11.8	5:44	5:35
7	11.9	5:44	5:35
8	11.9	5:44	5:35
9	11.9	5:44	5:35
10	11.9	5:44	5:35
11	11.9	5:43	5:35
12	11.9	5:43	5:35
13	11.9	5:43	5:35
14	11.9	5:43	5:35
15	11.9	5:42	5:35
16	11.9	5:42	5:35
17	11.9	5:42	5:34
18	11.9	5:41	5:34
19	11.9	5:41	5:34
20	11.9	5:41	5:34
21	11.9	5:40	5:34
22	11.9	5:40	5:34
23	11.9	5:40	5:34
24	11.9	5:39	5:33
25	11.9	5:39	5:33
26	11.9	5:38	5:33
27	11.9	5:38	5:33
28	11.9	5:38	5:33
29	11.9	5:37	5:32
30	11.9	5:37	5:32
31	11.9	5:36	5:32

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.3 kWh/m².

For context, solar energy here swings from a low near 4.79 kWh/m² to a high of 6.74 kWh/m² in September across the year — August's 6.3 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	6.0	6.0	6.0	6.0	6.1	6.1	6.1	6.2	6.2	6.2	6.2	6.2	6.3	6.3	6.3	6.3	6.3	6.3	6.3	6.4	6.4	6.4	6.4	6.4	6.5	6.5	6.5	6.5	6.5	6.5	6.5
Level	Bright	Bright	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense

	Solar energy (kWh/m²)	Level
1	6.0	Bright
2	6.0	Bright
3	6.0	Intense
4	6.0	Intense
5	6.1	Intense
6	6.1	Intense
7	6.1	Intense
8	6.2	Intense
9	6.2	Intense
10	6.2	Intense
11	6.2	Intense
12	6.2	Intense
13	6.3	Intense
14	6.3	Intense
15	6.3	Intense
16	6.3	Intense
17	6.3	Intense
18	6.3	Intense
19	6.3	Intense
20	6.4	Intense
21	6.4	Intense
22	6.4	Intense
23	6.4	Intense
24	6.4	Intense
25	6.5	Intense
26	6.5	Intense
27	6.5	Intense
28	6.5	Intense
29	6.5	Intense
30	6.5	Intense
31	6.5	Intense

Planning a trip in August

Hazard calendar for Fortaleza

In seasonPeak

None of Fortaleza's seasonal hazards are active in August. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Fortaleza's monsoon runs February–May, when most of the year's rain falls.

Monsoon

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is August a good time to visit Fortaleza?

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

6.7

Sightseeing

2nd-best month of the year

8.8

Beach & pool

3rd-best month of the year

August is a reasonable time to visit Fortaleza for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Fortaleza in August

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

In August, Fortaleza sees daytime highs around 30°C and nights near 24°C. Pack light clothes and sun protection. Worth having: a windbreaker.

light clothessun protectiona windbreaker

Sea temperature near Fortaleza in August

The nearest coast averages about 27°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 14 km away) is warmest in April at about 29°C and coldest in August near 27°C.

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	28	28	29	29	29	28	27	27	27	27	27	28
Comfort	Tropical	Tropical	Tropical	Tropical	Tropical	Warm	Warm	Warm	Warm	Warm	Warm	Warm

	Sea temperature (°C)	Comfort
Jan	28	Tropical
Feb	28	Tropical
Mar	29	Tropical
Apr	29	Tropical
May	29	Tropical
Jun	28	Warm
Jul	27	Warm
Aug	27	Warm
Sep	27	Warm
Oct	27	Warm
Nov	27	Warm
Dec	28	Warm

UV index in Fortaleza in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Fortaleza peaks around March 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 10 (very high).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	13	14	16	14	11	10	10	10	12	12	12	11
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high	Extreme	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	13	Extreme
Feb	14	Extreme
Mar	16	Extreme
Apr	14	Extreme
May	11	Extreme
Jun	10	Very high
Jul	10	Very high
Aug	10	Extreme
Sep	12	Extreme
Oct	12	Extreme
Nov	12	Extreme
Dec	11	Extreme

Location & terrain

Where is Fortaleza?

Fortaleza sits at 3.7°S, 38.5°W, 18 m above sea level, in Brazil. The nearest listed city is Caucaia, 12 km away.

Topography around Fortaleza

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

Within 3 km, the terrain around Fortaleza has only modest variations in elevation — a maximum elevation change of 33 m around an average of 12 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 67 m; within 80 km, large variations in elevation — a maximum elevation change of 1,081 m.

The land around Fortaleza is covered by artificial surfaces (54%) and water (41%) within 3 km, water (50%) and artificial surfaces (29%) within 16 km, and water (39%) and trees (22%) within 80 km.

3 km

33 m

artificial surfaces 54%

16 km

67 m

water 50%

80 km

1,081 m

water 39%

treesshrubsgrasslandcroplandartificial surfacesbare terrainwatermangroves

← July Fortaleza year-round climate September →Best places to visit in August

August weather nearby: Caucaia 12 km · Maracanaú 20 km · Eusébio 22 km · Maranguape 25 km · Aquiraz 27 km · Itaitinga 28 km · Pacatuba 31 km · Guaiúba 37 km

Brazil travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type C / N; 127 / 220 V · 60 Hz
Prices: ≈ 46% of US; price level, 2025
GDP per capita: $10,713; 2025
Happiness: 6.6 / 10; World Happiness, 2025
Safe drinking water: 89%; of population, 2024
Homicide rate: 19.3; per 100k, 2023
Road deaths: 16; per 100k/yr, 2019
Income group: Upper middle; World Bank
English: Low; EF EPI 482
Religion

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 Fortaleza (-3.7172°, -38.5431°, elevation 18 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. 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°C)	Avg low (°C)
1	30	24
2	30	24
3	30	24
4	30	24
5	30	24
6	30	24
7	30	24
8	30	24
9	30	24
10	30	24
11	30	24
12	30	24
13	30	24
14	30	24
15	30	24
16	30	24
17	30	24
18	30	24
19	30	24
20	30	24
21	30	24
22	30	24
23	30	24
24	30	24
25	30	24
26	30	24
27	30	24
28	30	24
29	30	24
30	30	25
31	30	25

	Clearer (%)	Cloudier (%)
1	92	8
2	92	8
3	93	7
4	93	7
5	93	7
6	94	6
7	94	6
8	94	6
9	94	6
10	93	7
11	93	7
12	94	6
13	94	6
14	94	6
15	94	6
16	94	6
17	93	7
18	93	7
19	93	7
20	93	7
21	94	6
22	94	6
23	94	6
24	94	6
25	95	5
26	95	5
27	95	5
28	96	4
29	96	4
30	95	5
31	96	4

	Rain chance (%)
1	11
2	11
3	10
4	10
5	9
6	9
7	9
8	9
9	9
10	8
11	8
12	8
13	8
14	7
15	7
16	7
17	7
18	7
19	7
20	7
21	7
22	7
23	6
24	6
25	6
26	6
27	6
28	6
29	5
30	5
31	5

	Muggy (%)	Oppressive (%)
1	44	56
2	44	56
3	44	56
4	44	56
5	44	56
6	43	57
7	43	57
8	43	57
9	43	57
10	43	57
11	43	57
12	43	57
13	43	57
14	43	57
15	43	57
16	43	57
17	43	57
18	42	58
19	42	58
20	41	59
21	41	59
22	40	60
23	39	61
24	38	62
25	38	62
26	37	63
27	36	64
28	36	64
29	36	64
30	36	64
31	36	64

	Avg high (°C)	Avg low (°C)
1	30	24
2	30	24
3	30	24
4	30	24
5	30	24
6	30	24
7	30	24
8	30	24
9	30	24
10	30	24
11	30	24
12	30	24
13	30	24
14	30	24
15	30	24
16	30	24
17	30	24
18	30	24
19	30	24
20	30	24
21	30	24
22	30	24
23	30	24
24	30	24
25	30	24
26	30	24
27	30	24
28	30	24
29	30	24
30	30	25
31	30	25

	Clearer (%)	Cloudier (%)
1	92	8
2	92	8
3	93	7
4	93	7
5	93	7
6	94	6
7	94	6
8	94	6
9	94	6
10	93	7
11	93	7
12	94	6
13	94	6
14	94	6
15	94	6
16	94	6
17	93	7
18	93	7
19	93	7
20	93	7
21	94	6
22	94	6
23	94	6
24	94	6
25	95	5
26	95	5
27	95	5
28	96	4
29	96	4
30	95	5
31	96	4

	Rain chance (%)
1	11
2	11
3	10
4	10
5	9
6	9
7	9
8	9
9	9
10	8
11	8
12	8
13	8
14	7
15	7
16	7
17	7
18	7
19	7
20	7
21	7
22	7
23	6
24	6
25	6
26	6
27	6
28	6
29	5
30	5
31	5

	Muggy (%)	Oppressive (%)
1	44	56
2	44	56
3	44	56
4	44	56
5	44	56
6	43	57
7	43	57
8	43	57
9	43	57
10	43	57
11	43	57
12	43	57
13	43	57
14	43	57
15	43	57
16	43	57
17	43	57
18	42	58
19	42	58
20	41	59
21	41	59
22	40	60
23	39	61
24	38	62
25	38	62
26	37	63
27	36	64
28	36	64
29	36	64
30	36	64
31	36	64

	Avg high (°C)	Avg low (°C)
1	30	24
2	30	24
3	30	24
4	30	24
5	30	24
6	30	24
7	30	24
8	30	24
9	30	24
10	30	24
11	30	24
12	30	24
13	30	24
14	30	24
15	30	24
16	30	24
17	30	24
18	30	24
19	30	24
20	30	24
21	30	24
22	30	24
23	30	24
24	30	24
25	30	24
26	30	24
27	30	24
28	30	24
29	30	24
30	30	25
31	30	25

	Clearer (%)	Cloudier (%)
1	92	8
2	92	8
3	93	7
4	93	7
5	93	7
6	94	6
7	94	6
8	94	6
9	94	6
10	93	7
11	93	7
12	94	6
13	94	6
14	94	6
15	94	6
16	94	6
17	93	7
18	93	7
19	93	7
20	93	7
21	94	6
22	94	6
23	94	6
24	94	6
25	95	5
26	95	5
27	95	5
28	96	4
29	96	4
30	95	5
31	96	4

	Rain chance (%)
1	11
2	11
3	10
4	10
5	9
6	9
7	9
8	9
9	9
10	8
11	8
12	8
13	8
14	7
15	7
16	7
17	7
18	7
19	7
20	7
21	7
22	7
23	6
24	6
25	6
26	6
27	6
28	6
29	5
30	5
31	5

	Muggy (%)	Oppressive (%)
1	44	56
2	44	56
3	44	56
4	44	56
5	44	56
6	43	57
7	43	57
8	43	57
9	43	57
10	43	57
11	43	57
12	43	57
13	43	57
14	43	57
15	43	57
16	43	57
17	43	57
18	42	58
19	42	58
20	41	59
21	41	59
22	40	60
23	39	61
24	38	62
25	38	62
26	37	63
27	36	64
28	36	64
29	36	64
30	36	64
31	36	64