Nova Olinda do Norte weather in September

In September, Nova Olinda do Norte sees average daytime highs of 32°C and overnight lows near 25°C, with 135 mm of rain across 18.7 wet days and about 12 hours of daylight. It is the 1st-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 23% of the time in September, and the air most often feels miserable.

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 Nova Olinda do Norte's 4th-clearest and 5th-windiest month. For the whole year in context, see Nova Olinda do Norte's year-round climate.

Daytime high: 32°; 1st warmest
Overnight low: 25°; 12th coldest
Rainfall: 135 mm; 18.7 wet days
Daylight: 12 hours; 5:51 AM – 5:50 PM
Cloud cover: 65%; 4th clearest
Wind: 5 km/h; 5th windiest
Solar energy: 5.31 kWh/m²
Travel score: 3.1; out of 10

Nova Olinda do Norte is settlement in Brazil.

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

← August Nova Olinda do Norte 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 32°C through the month.

A typical September day in Nova Olinda do Norte reaches about 32°C in the afternoon and slips back to 25°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 34°C. Set against its neighbours, September runs on par with August and on par with 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)	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32
Avg low (°C)	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25

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

How September really feels in Nova Olinda do Norte

Once humidity and wind are folded in, September averages 30 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

30 feel dangerously hot (≥ 39°C)

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.

Nova Olinda do Norte weather by month

How September compares with the rest of the year at a glance. September is the 1st-warmest and 10th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	30° / 24°	335	28.7	12.2	2.8
Feb	30° / 24°	308	25.9	12.1	2.8
Mar	30° / 24°	372	28.9	12	2.7
Apr	30° / 24°	338	28.6	11.9	2.7
May	30° / 24°	268	28.2	11.8	2.8
Jun	31° / 24°	140	21.1	11.8	3.5
Jul	31° / 24°	105	17.5	11.8	3.9
Aug	32° / 25°	107	16.6	11.9	3.6
Sep	32° / 25°	135	18.7	12	3.1
Oct	32° / 25°	155	20.3	12.1	2.9
Nov	32° / 25°	197	22.6	12.2	2.8
Dec	31° / 24°	294	27.3	12.2	2.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 19% of September, with mostly cloudy or overcast conditions the remaining 58%.

	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 (%)	49	48	47	47	47	46	46	45	44	44	44	43	43	43	42	42	41	41	40	40	38	38	39	38	38	38	38	38	37	37
Cloudier (%)	51	52	53	53	53	54	54	55	56	56	56	57	57	57	58	58	59	59	60	60	62	62	61	62	62	62	62	62	63	63

	Clearer (%)	Cloudier (%)
1	49	51
2	48	52
3	47	53
4	47	53
5	47	53
6	46	54
7	46	54
8	45	55
9	44	56
10	44	56
11	44	56
12	43	57
13	43	57
14	43	57
15	42	58
16	42	58
17	41	59
18	41	59
19	40	60
20	40	60
21	38	62
22	38	62
23	39	61
24	38	62
25	38	62
26	38	62
27	38	62
28	38	62
29	37	63
30	37	63

Chance of precipitation in September

Any precipitation

Nova Olinda do Norte gets around 135 mm of rain over 18.7 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 62% and peaks near 62% 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 (%)	62	62	62	62	62	62	62	62	62	62	62	62	62	62	62	62	62	62	62	62	62	62	62	61	61	61	60	60	60	60

	Rain chance (%)
1	62
2	62
3	62
4	62
5	62
6	62
7	62
8	62
9	62
10	62
11	62
12	62
13	62
14	62
15	62
16	62
17	62
18	62
19	62
20	62
21	62
22	62
23	62
24	61
25	61
26	61
27	60
28	60
29	60
30	60

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the miserable band about 84% 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
Oppressive (%)	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	16	16	16	17	17	18	18	18	19	19
Miserable (%)	85	85	85	85	85	85	85	85	85	85	85	85	85	85	85	85	85	85	85	85	84	84	84	83	83	82	82	82	81	81

	Oppressive (%)	Miserable (%)
1	15	85
2	15	85
3	15	85
4	15	85
5	15	85
6	15	85
7	15	85
8	15	85
9	15	85
10	15	85
11	15	85
12	15	85
13	15	85
14	15	85
15	15	85
16	15	85
17	15	85
18	15	85
19	15	85
20	15	85
21	16	84
22	16	84
23	16	84
24	17	83
25	17	83
26	18	82
27	18	82
28	18	82
29	19	81
30	19	81

Wind in September

Winds average 5 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 5 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)	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

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

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 5:58 AM to 5:45 AM, and sunset from 5:54 PM to 5:47 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	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	12.0	12.0	12.0	12.0	12.0
Sunrise (AM)	5:58	5:58	5:57	5:57	5:57	5:56	5:56	5:55	5:55	5:54	5:54	5:53	5:53	5:52	5:52	5:51	5:51	5:50	5:50	5:49	5:49	5:48	5:48	5:48	5:47	5:47	5:46	5:46	5:45	5:45
Sunset (PM)	5:54	5:54	5:53	5:53	5:53	5:53	5:52	5:52	5:52	5:52	5:51	5:51	5:51	5:51	5:50	5:50	5:50	5:50	5:49	5:49	5:49	5:49	5:48	5:48	5:48	5:48	5:47	5:47	5:47	5:47

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.9	5:58	5:54
2	11.9	5:58	5:54
3	11.9	5:57	5:53
4	11.9	5:57	5:53
5	11.9	5:57	5:53
6	11.9	5:56	5:53
7	11.9	5:56	5:52
8	11.9	5:55	5:52
9	12.0	5:55	5:52
10	12.0	5:54	5:52
11	12.0	5:54	5:51
12	12.0	5:53	5:51
13	12.0	5:53	5:51
14	12.0	5:52	5:51
15	12.0	5:52	5:50
16	12.0	5:51	5:50
17	12.0	5:51	5:50
18	12.0	5:50	5:50
19	12.0	5:50	5:49
20	12.0	5:49	5:49
21	12.0	5:49	5:49
22	12.0	5:48	5:49
23	12.0	5:48	5:48
24	12.0	5:48	5:48
25	12.0	5:47	5:48
26	12.0	5:47	5:48
27	12.0	5:46	5:47
28	12.0	5:46	5:47
29	12.0	5:45	5:47
30	12.0	5:45	5:47

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.31 kWh/m².

For context, solar energy here swings from a low near 3.89 kWh/m² to a high of 5.41 kWh/m² in October across the year — September's 5.31 kWh/m² sits near the top of that range.

	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)	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.4	5.4	5.4	5.4	5.4	5.4	5.4	5.4	5.4	5.4	5.4	5.4
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	5.2	Bright
2	5.2	Bright
3	5.2	Bright
4	5.2	Bright
5	5.2	Bright
6	5.2	Bright
7	5.2	Bright
8	5.3	Bright
9	5.3	Bright
10	5.3	Bright
11	5.3	Bright
12	5.3	Bright
13	5.3	Bright
14	5.3	Bright
15	5.3	Bright
16	5.3	Bright
17	5.3	Bright
18	5.3	Bright
19	5.4	Bright
20	5.4	Bright
21	5.4	Bright
22	5.4	Bright
23	5.4	Bright
24	5.4	Bright
25	5.4	Bright
26	5.4	Bright
27	5.4	Bright
28	5.4	Bright
29	5.4	Bright
30	5.4	Bright

Planning a trip in September

Is September a good time to visit Nova Olinda do Norte?

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

3.1

Sightseeing

4th-best month of the year

5.0

Beach & pool

3rd-best month of the year

September is a weaker month for outdoor sightseeing in Nova Olinda do Norte.

What to pack for Nova Olinda do Norte in September

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

In September, Nova Olinda do Norte sees daytime highs around 32°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 19 days see rain.

light clothesrain gearsun protection

UV index in Nova Olinda do Norte in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Nova Olinda do Norte peaks around March 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 12 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)	15	15	15	14	12	10	10	11	11	10	10	12
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high	Extreme	Extreme	Extreme	Very high	Extreme

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

Air quality in Nova Olinda do Norte in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Nova Olinda do Norte is worst in October — around 36 µg/m³ PM2.5 (poor), about 3.4× the cleanest month (June, 11 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	15	15	15	14	11	11	13	24	33	36	27	18
Level	Moderate	Moderate	Moderate	Moderate	Good	Good	Moderate	Moderate	Moderate	Poor	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	15	Moderate
Feb	15	Moderate
Mar	15	Moderate
Apr	14	Moderate
May	11	Good
Jun	11	Good
Jul	13	Moderate
Aug	24	Moderate
Sep	33	Moderate
Oct	36	Poor
Nov	27	Moderate
Dec	18	Moderate

Location & terrain

Where is Nova Olinda do Norte?

Nova Olinda do Norte sits at 3.9°S, 59.1°W, 22 m above sea level, in Brazil. The nearest listed city is Autazes, 35 km away.

Topography around Nova Olinda do Norte

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Nova Olinda do Norte.

Within 3 km, the terrain around Nova Olinda do Norte has only modest variations in elevation — a maximum elevation change of 32 m around an average of 23 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 39 m; within 80 km, only modest variations in elevation — a maximum elevation change of 74 m.

The land around Nova Olinda do Norte is covered by trees (48%) and water (30%) within 3 km, trees (68%) and water (21%) within 16 km, and trees (81%) within 80 km.

3 km

32 m

trees 48%

16 km

39 m

trees 68%

80 km

74 m

trees 81%

treesgrasslandartificial surfaceswaterwetland

← August Nova Olinda do Norte year-round climate October →Best places to visit in September

September weather nearby: Autazes 35 km · Borba 78 km · Itacoatiara 110 km · Careiro da Várzea 112 km · Urucurituba 135 km · Manaus 135 km · Iranduba 139 km · Careiro 142 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 Nova Olinda do Norte (-3.8917°, -59.0954°, elevation 22 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. 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).

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

	Clearer (%)	Cloudier (%)
1	49	51
2	48	52
3	47	53
4	47	53
5	47	53
6	46	54
7	46	54
8	45	55
9	44	56
10	44	56
11	44	56
12	43	57
13	43	57
14	43	57
15	42	58
16	42	58
17	41	59
18	41	59
19	40	60
20	40	60
21	38	62
22	38	62
23	39	61
24	38	62
25	38	62
26	38	62
27	38	62
28	38	62
29	37	63
30	37	63

	Rain chance (%)
1	62
2	62
3	62
4	62
5	62
6	62
7	62
8	62
9	62
10	62
11	62
12	62
13	62
14	62
15	62
16	62
17	62
18	62
19	62
20	62
21	62
22	62
23	62
24	61
25	61
26	61
27	60
28	60
29	60
30	60

	Oppressive (%)	Miserable (%)
1	15	85
2	15	85
3	15	85
4	15	85
5	15	85
6	15	85
7	15	85
8	15	85
9	15	85
10	15	85
11	15	85
12	15	85
13	15	85
14	15	85
15	15	85
16	15	85
17	15	85
18	15	85
19	15	85
20	15	85
21	16	84
22	16	84
23	16	84
24	17	83
25	17	83
26	18	82
27	18	82
28	18	82
29	19	81
30	19	81

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

	Clearer (%)	Cloudier (%)
1	49	51
2	48	52
3	47	53
4	47	53
5	47	53
6	46	54
7	46	54
8	45	55
9	44	56
10	44	56
11	44	56
12	43	57
13	43	57
14	43	57
15	42	58
16	42	58
17	41	59
18	41	59
19	40	60
20	40	60
21	38	62
22	38	62
23	39	61
24	38	62
25	38	62
26	38	62
27	38	62
28	38	62
29	37	63
30	37	63

	Rain chance (%)
1	62
2	62
3	62
4	62
5	62
6	62
7	62
8	62
9	62
10	62
11	62
12	62
13	62
14	62
15	62
16	62
17	62
18	62
19	62
20	62
21	62
22	62
23	62
24	61
25	61
26	61
27	60
28	60
29	60
30	60

	Oppressive (%)	Miserable (%)
1	15	85
2	15	85
3	15	85
4	15	85
5	15	85
6	15	85
7	15	85
8	15	85
9	15	85
10	15	85
11	15	85
12	15	85
13	15	85
14	15	85
15	15	85
16	15	85
17	15	85
18	15	85
19	15	85
20	15	85
21	16	84
22	16	84
23	16	84
24	17	83
25	17	83
26	18	82
27	18	82
28	18	82
29	19	81
30	19	81

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

	Clearer (%)	Cloudier (%)
1	49	51
2	48	52
3	47	53
4	47	53
5	47	53
6	46	54
7	46	54
8	45	55
9	44	56
10	44	56
11	44	56
12	43	57
13	43	57
14	43	57
15	42	58
16	42	58
17	41	59
18	41	59
19	40	60
20	40	60
21	38	62
22	38	62
23	39	61
24	38	62
25	38	62
26	38	62
27	38	62
28	38	62
29	37	63
30	37	63

	Rain chance (%)
1	62
2	62
3	62
4	62
5	62
6	62
7	62
8	62
9	62
10	62
11	62
12	62
13	62
14	62
15	62
16	62
17	62
18	62
19	62
20	62
21	62
22	62
23	62
24	61
25	61
26	61
27	60
28	60
29	60
30	60

	Oppressive (%)	Miserable (%)
1	15	85
2	15	85
3	15	85
4	15	85
5	15	85
6	15	85
7	15	85
8	15	85
9	15	85
10	15	85
11	15	85
12	15	85
13	15	85
14	15	85
15	15	85
16	15	85
17	15	85
18	15	85
19	15	85
20	15	85
21	16	84
22	16	84
23	16	84
24	17	83
25	17	83
26	18	82
27	18	82
28	18	82
29	19	81
30	19	81