Santa Cruz weather in September

In September, Santa Cruz sees average daytime highs of 31°C and overnight lows near 21°C, with 3 mm of rain across 0.9 wet days and about 12 hours of daylight. It is the 7th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 45% of the time in September, and the air most often feels muggy.

Daylight stretches from about 11 h 54 min at the start of September to 12 hours by month's end. Set against the rest of the year, September is Santa Cruz's 2nd-clearest and 1st-windiest month. For the whole year in context, see Santa Cruz's year-round climate.

Daytime high: 31°; 7th warmest
Overnight low: 21°; 3rd coldest
Rainfall: 3 mm; 0.9 wet days
Daylight: 12 hours; 5:19 AM – 5:17 PM
Cloud cover: 43%; 2nd clearest
Wind: 19 km/h; 1st windiest
Solar energy: 5.89 kWh/m²
Travel score: 5.6; out of 10

Santa Cruz is settlement in Brazil.

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

← August Santa Cruz year-round climate October →Best places to visit in September

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical September day in Santa Cruz reaches about 31°C in the afternoon and slips back to 21°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 32°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

	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
Avg high (°C)	30	30	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	32	32	32	32	32	32	32
Avg low (°C)	20	20	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21

	Avg high (°C)	Avg low (°C)
1	30	20
2	30	20
3	31	21
4	31	21
5	31	21
6	31	21
7	31	21
8	31	21
9	31	21
10	31	21
11	31	21
12	31	21
13	31	21
14	31	21
15	31	21
16	31	21
17	31	21
18	31	21
19	31	21
20	31	21
21	31	21
22	31	21
23	31	21
24	32	21
25	32	21
26	32	21
27	32	21
28	32	21
29	32	21
30	32	21

How September really feels in Santa Cruz

Once humidity and wind are folded in, September averages 15 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 September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Santa Cruz weather by month

How September compares with the rest of the year at a glance. September is the 7th-warmest and 11th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	32° / 23°	32	8	12.3	4.1
Feb	32° / 23°	39	9.4	12.2	3.9
Mar	32° / 23°	61	12.5	12	3.8
Apr	31° / 23°	62	12.4	11.9	4.2
May	31° / 22°	39	7.4	11.7	5.0
Jun	29° / 21°	30	5.5	11.6	5.8
Jul	29° / 20°	22	4.1	11.7	6.2
Aug	30° / 20°	7	1.4	11.8	6.1
Sep	31° / 21°	3	0.9	12	5.6
Oct	32° / 21°	3	0.6	12.1	5.0
Nov	32° / 22°	4	0.8	12.3	4.8
Dec	32° / 22°	10	3	12.4	4.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 30% of September, with mostly cloudy or overcast conditions the remaining 26%. 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
Clearer (%)	69	69	69	69	69	69	69	69	69	69	70	70	71	72	72	73	73	75	76	77	78	79	79	80	81	82	83	84	83	84
Cloudier (%)	31	31	31	31	31	31	31	31	31	31	30	30	29	28	28	27	27	25	24	23	22	21	21	20	19	18	17	16	17	16

	Clearer (%)	Cloudier (%)
1	69	31
2	69	31
3	69	31
4	69	31
5	69	31
6	69	31
7	69	31
8	69	31
9	69	31
10	69	31
11	70	30
12	70	30
13	71	29
14	72	28
15	72	28
16	73	27
17	73	27
18	75	25
19	76	24
20	77	23
21	78	22
22	79	21
23	79	21
24	80	20
25	81	19
26	82	18
27	83	17
28	84	16
29	83	17
30	84	16

Chance of precipitation in September

Any precipitation

Santa Cruz gets around 3 mm of rain over 0.9 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 3% and peaks near 4% 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
Rain chance (%)	3	3	4	4	4	4	4	4	4	4	4	4	4	4	4	4	3	3	3	3	2	2	2	2	1	1	1	1	1	1

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

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 52% of days. Sticky, muggy-or-worse air turns up on roughly 52% 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
Comfortable (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1
Humid (%)	51	51	52	52	52	52	52	52	52	51	51	50	49	49	48	47	47	46	45	45	44	44	44	44	43	43	42	42	41	40
Muggy (%)	49	49	48	48	48	48	48	48	48	49	49	50	51	51	52	53	53	54	55	55	56	56	56	56	57	57	58	58	59	59

	Comfortable (%)	Humid (%)	Muggy (%)
1	0	51	49
2	0	51	49
3	0	52	48
4	0	52	48
5	0	52	48
6	0	52	48
7	0	52	48
8	0	52	48
9	0	52	48
10	0	51	49
11	0	51	49
12	0	50	50
13	0	49	51
14	0	49	51
15	0	48	52
16	0	47	53
17	0	47	53
18	0	46	54
19	0	45	55
20	0	45	55
21	0	44	56
22	0	44	56
23	0	44	56
24	0	44	56
25	0	43	57
26	0	43	57
27	0	42	58
28	0	42	58
29	0	41	59
30	1	40	59

Wind in September

Winds average 19 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 18 km/h on the calmest days to 19 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
Wind speed (km/h)	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	18	18	18	18	18	18	18	18	18
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

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

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 54 min at the start of September to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over September. Sunrise moves from 5:27 AM to 5:12 AM, and sunset from 5:20 PM to 5:15 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
Daylight (h)	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	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0
Sunrise (AM)	5:27	5:27	5:26	5:26	5:25	5:25	5:24	5:24	5:23	5:23	5:22	5:22	5:21	5:21	5:20	5:19	5:19	5:18	5:18	5:17	5:17	5:16	5:16	5:15	5:15	5:14	5:13	5:13	5:12	5:12
Sunset (PM)	5:20	5:20	5:20	5:20	5:20	5:19	5:19	5:19	5:19	5:19	5:18	5:18	5:18	5:18	5:18	5:17	5:17	5:17	5:17	5:17	5:16	5:16	5:16	5:16	5:16	5:16	5:15	5:15	5:15	5:15

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.9	5:27	5:20
2	11.9	5:27	5:20
3	11.9	5:26	5:20
4	11.9	5:26	5:20
5	11.9	5:25	5:20
6	11.9	5:25	5:19
7	11.9	5:24	5:19
8	11.9	5:24	5:19
9	11.9	5:23	5:19
10	11.9	5:23	5:19
11	11.9	5:22	5:18
12	11.9	5:22	5:18
13	11.9	5:21	5:18
14	12.0	5:21	5:18
15	12.0	5:20	5:18
16	12.0	5:19	5:17
17	12.0	5:19	5:17
18	12.0	5:18	5:17
19	12.0	5:18	5:17
20	12.0	5:17	5:17
21	12.0	5:17	5:16
22	12.0	5:16	5:16
23	12.0	5:16	5:16
24	12.0	5:15	5:16
25	12.0	5:15	5:16
26	12.0	5:14	5:16
27	12.0	5:13	5:15
28	12.0	5:13	5:15
29	12.0	5:12	5:15
30	12.0	5:12	5:15

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.89 kWh/m².

For context, solar energy here swings from a low near 4.32 kWh/m² to a high of 6.44 kWh/m² in November across the year — September's 5.89 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
Solar energy (kWh/m²)	5.5	5.5	5.5	5.5	5.5	5.6	5.6	5.6	5.6	5.7	5.7	5.7	5.8	5.8	5.8	5.9	5.9	6.0	6.0	6.0	6.1	6.1	6.2	6.2	6.2	6.3	6.3	6.3	6.3	6.3
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense

	Solar energy (kWh/m²)	Level
1	5.5	Bright
2	5.5	Bright
3	5.5	Bright
4	5.5	Bright
5	5.5	Bright
6	5.6	Bright
7	5.6	Bright
8	5.6	Bright
9	5.6	Bright
10	5.7	Bright
11	5.7	Bright
12	5.7	Bright
13	5.8	Bright
14	5.8	Bright
15	5.8	Bright
16	5.9	Bright
17	5.9	Bright
18	6.0	Bright
19	6.0	Bright
20	6.0	Intense
21	6.1	Intense
22	6.1	Intense
23	6.2	Intense
24	6.2	Intense
25	6.2	Intense
26	6.3	Intense
27	6.3	Intense
28	6.3	Intense
29	6.3	Intense
30	6.3	Intense

Planning a trip in September

Is September a good time to visit Santa Cruz?

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

5.6

Sightseeing

4th-best month of the year

8.3

Beach & pool

2nd-best month of the year

September is a reasonable time to visit Santa Cruz for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Santa Cruz in September

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

In September, Santa Cruz sees daytime highs around 31°C and nights near 21°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Santa Cruz in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Santa Cruz peaks around March 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 15 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)	14	15	16	14	11	10	10	10	13	12	12	12
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Extreme	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	14	Extreme
Feb	15	Extreme
Mar	16	Extreme
Apr	14	Extreme
May	11	Extreme
Jun	10	Extreme
Jul	10	Very high
Aug	10	Extreme
Sep	13	Extreme
Oct	12	Extreme
Nov	12	Extreme
Dec	12	Extreme

Location & terrain

Where is Santa Cruz?

Santa Cruz sits at 6.2°S, 36.0°W, 230 m above sea level, in Brazil. The nearest listed city is Cuité, 32 km away.

Topography around Santa Cruz

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

Within 3 km, the terrain around Santa Cruz has only modest variations in elevation — a maximum elevation change of 97 m around an average of 240 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 389 m; within 80 km, large variations in elevation — a maximum elevation change of 734 m.

The land around Santa Cruz is covered by grassland (57%) and shrubs (25%) within 3 km, shrubs (67%) and grassland (30%) within 16 km, and shrubs (62%) and grassland (35%) within 80 km.

3 km

97 m

grassland 57%

16 km

389 m

shrubs 67%

80 km

734 m

shrubs 62%

treesshrubsgrasslandcroplandartificial surfacesbare terrainwater

← August Santa Cruz year-round climate October →Best places to visit in September

September weather nearby: Cuité 32 km · São Paulo do Potengi 47 km · Picuí 48 km · Araruna 48 km · Lagoa Nova 52 km · Cacimba de Dentro 53 km · Currais Novos 55 km · Santo Antônio 61 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 Santa Cruz (-6.2294°, -36.0228°, elevation 230 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. 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	20
2	30	20
3	31	21
4	31	21
5	31	21
6	31	21
7	31	21
8	31	21
9	31	21
10	31	21
11	31	21
12	31	21
13	31	21
14	31	21
15	31	21
16	31	21
17	31	21
18	31	21
19	31	21
20	31	21
21	31	21
22	31	21
23	31	21
24	32	21
25	32	21
26	32	21
27	32	21
28	32	21
29	32	21
30	32	21

	Clearer (%)	Cloudier (%)
1	69	31
2	69	31
3	69	31
4	69	31
5	69	31
6	69	31
7	69	31
8	69	31
9	69	31
10	69	31
11	70	30
12	70	30
13	71	29
14	72	28
15	72	28
16	73	27
17	73	27
18	75	25
19	76	24
20	77	23
21	78	22
22	79	21
23	79	21
24	80	20
25	81	19
26	82	18
27	83	17
28	84	16
29	83	17
30	84	16

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

	Comfortable (%)	Humid (%)	Muggy (%)
1	0	51	49
2	0	51	49
3	0	52	48
4	0	52	48
5	0	52	48
6	0	52	48
7	0	52	48
8	0	52	48
9	0	52	48
10	0	51	49
11	0	51	49
12	0	50	50
13	0	49	51
14	0	49	51
15	0	48	52
16	0	47	53
17	0	47	53
18	0	46	54
19	0	45	55
20	0	45	55
21	0	44	56
22	0	44	56
23	0	44	56
24	0	44	56
25	0	43	57
26	0	43	57
27	0	42	58
28	0	42	58
29	0	41	59
30	1	40	59

	Avg high (°C)	Avg low (°C)
1	30	20
2	30	20
3	31	21
4	31	21
5	31	21
6	31	21
7	31	21
8	31	21
9	31	21
10	31	21
11	31	21
12	31	21
13	31	21
14	31	21
15	31	21
16	31	21
17	31	21
18	31	21
19	31	21
20	31	21
21	31	21
22	31	21
23	31	21
24	32	21
25	32	21
26	32	21
27	32	21
28	32	21
29	32	21
30	32	21

	Clearer (%)	Cloudier (%)
1	69	31
2	69	31
3	69	31
4	69	31
5	69	31
6	69	31
7	69	31
8	69	31
9	69	31
10	69	31
11	70	30
12	70	30
13	71	29
14	72	28
15	72	28
16	73	27
17	73	27
18	75	25
19	76	24
20	77	23
21	78	22
22	79	21
23	79	21
24	80	20
25	81	19
26	82	18
27	83	17
28	84	16
29	83	17
30	84	16

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

	Comfortable (%)	Humid (%)	Muggy (%)
1	0	51	49
2	0	51	49
3	0	52	48
4	0	52	48
5	0	52	48
6	0	52	48
7	0	52	48
8	0	52	48
9	0	52	48
10	0	51	49
11	0	51	49
12	0	50	50
13	0	49	51
14	0	49	51
15	0	48	52
16	0	47	53
17	0	47	53
18	0	46	54
19	0	45	55
20	0	45	55
21	0	44	56
22	0	44	56
23	0	44	56
24	0	44	56
25	0	43	57
26	0	43	57
27	0	42	58
28	0	42	58
29	0	41	59
30	1	40	59

	Avg high (°C)	Avg low (°C)
1	30	20
2	30	20
3	31	21
4	31	21
5	31	21
6	31	21
7	31	21
8	31	21
9	31	21
10	31	21
11	31	21
12	31	21
13	31	21
14	31	21
15	31	21
16	31	21
17	31	21
18	31	21
19	31	21
20	31	21
21	31	21
22	31	21
23	31	21
24	32	21
25	32	21
26	32	21
27	32	21
28	32	21
29	32	21
30	32	21

	Clearer (%)	Cloudier (%)
1	69	31
2	69	31
3	69	31
4	69	31
5	69	31
6	69	31
7	69	31
8	69	31
9	69	31
10	69	31
11	70	30
12	70	30
13	71	29
14	72	28
15	72	28
16	73	27
17	73	27
18	75	25
19	76	24
20	77	23
21	78	22
22	79	21
23	79	21
24	80	20
25	81	19
26	82	18
27	83	17
28	84	16
29	83	17
30	84	16

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

	Comfortable (%)	Humid (%)	Muggy (%)
1	0	51	49
2	0	51	49
3	0	52	48
4	0	52	48
5	0	52	48
6	0	52	48
7	0	52	48
8	0	52	48
9	0	52	48
10	0	51	49
11	0	51	49
12	0	50	50
13	0	49	51
14	0	49	51
15	0	48	52
16	0	47	53
17	0	47	53
18	0	46	54
19	0	45	55
20	0	45	55
21	0	44	56
22	0	44	56
23	0	44	56
24	0	44	56
25	0	43	57
26	0	43	57
27	0	42	58
28	0	42	58
29	0	41	59
30	1	40	59