Nhamundá weather in September

In September, Nhamundá sees average daytime highs of 32°C and overnight lows near 26°C, with 89 mm of rain across 12.6 wet days and about 12 hours of daylight. It is the 1st-warmest and 11th-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 40% of the time in September, and the air most often feels miserable.

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

Daytime high: 32°; 1st warmest
Overnight low: 26°; 11th coldest
Rainfall: 89 mm; 12.6 wet days
Daylight: 12 hours; 6:42 AM – 6:41 PM
Cloud cover: 53%; 2nd clearest
Wind: 7 km/h; 1st windiest
Solar energy: 5.78 kWh/m²
Travel score: 3.7; out of 10

← August Nhamundá 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 Nhamundá reaches about 32°C in the afternoon and slips back to 26°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	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26

	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	26
9	32	26
10	32	26
11	32	26
12	32	26
13	32	26
14	32	26
15	32	26
16	32	26
17	32	26
18	32	26
19	32	26
20	32	26
21	32	26
22	32	26
23	32	26
24	32	26
25	32	26
26	32	26
27	32	26
28	32	26
29	32	26
30	32	26

How September really feels in Nhamundá

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.

Nhamundá weather by month

How September compares with the rest of the year at a glance. September is the 1st-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	30° / 24°	351	27.5	12.1	3.0
Feb	29° / 24°	366	25.6	12.1	3.0
Mar	29° / 24°	427	29	12	2.9
Apr	29° / 24°	429	28.9	12	2.8
May	30° / 24°	325	28.7	11.9	2.9
Jun	30° / 24°	189	23.8	11.9	3.3
Jul	31° / 24°	122	19.2	11.9	3.9
Aug	32° / 25°	78	13.5	11.9	4.0
Sep	32° / 26°	89	12.6	12	3.7
Oct	32° / 26°	124	14.9	12	3.4
Nov	32° / 25°	166	18.9	12.1	3.2
Dec	31° / 25°	264	24.6	12.1	3.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 43%. Skies tend to cloud over 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 (%)	61	61	59	59	58	58	58	57	57	57	58	57	57	57	58	58	57	58	57	58	57	58	57	57	57	56	56	56	55	53
Cloudier (%)	39	39	41	41	42	42	42	43	43	43	42	43	43	43	42	42	43	42	43	42	43	42	43	43	43	44	44	44	45	47

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

Chance of precipitation in September

Any precipitation

Nhamundá gets around 89 mm of rain over 12.6 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 42% and peaks near 43% 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 (%)	42	43	43	43	43	43	43	43	43	42	42	42	42	42	41	41	41	41	40	40	40	40	40	40	41	41	41	41	42	42

	Rain chance (%)
1	42
2	43
3	43
4	43
5	43
6	43
7	43
8	43
9	43
10	42
11	42
12	42
13	42
14	42
15	41
16	41
17	41
18	41
19	40
20	40
21	40
22	40
23	40
24	40
25	41
26	41
27	41
28	41
29	42
30	42

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 78% 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	16	17	18	19	19	20	21	21	22	22	23	23	23	23	23	23	23	23	24	24	24	25	26	26	27	27	27	27
Miserable (%)	85	85	84	83	82	81	81	80	79	79	78	78	77	77	77	77	77	77	77	77	76	76	76	75	74	74	73	73	73	73

	Oppressive (%)	Miserable (%)
1	15	85
2	15	85
3	16	84
4	17	83
5	18	82
6	19	81
7	19	81
8	20	80
9	21	79
10	21	79
11	22	78
12	22	78
13	23	77
14	23	77
15	23	77
16	23	77
17	23	77
18	23	77
19	23	77
20	23	77
21	24	76
22	24	76
23	24	76
24	25	75
25	26	74
26	26	74
27	27	73
28	27	73
29	27	73
30	27	73

Wind in September

Winds average 7 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 6 km/h on the calmest days to 7 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)	6	6	6	6	6	6	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7
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	6	calm
2	6	calm
3	6	calm
4	6	calm
5	6	calm
6	6	calm
7	7	calm
8	7	calm
9	7	calm
10	7	calm
11	7	calm
12	7	calm
13	7	calm
14	7	calm
15	7	calm
16	7	calm
17	7	calm
18	7	calm
19	7	calm
20	7	calm
21	7	calm
22	7	calm
23	7	calm
24	7	calm
25	7	calm
26	7	calm
27	7	calm
28	7	calm
29	7	calm
30	7	calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 hours 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 0 minutes over September. Sunrise moves from 6:48 AM to 6:36 AM, and sunset from 6:45 PM to 6:37 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)	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	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0
Sunrise (AM)	6:48	6:47	6:47	6:47	6:46	6:46	6:45	6:45	6:45	6:44	6:44	6:43	6:43	6:42	6:42	6:42	6:41	6:41	6:40	6:40	6:39	6:39	6:39	6:38	6:38	6:37	6:37	6:36	6:36	6:36
Sunset (PM)	6:45	6:45	6:45	6:44	6:44	6:44	6:44	6:43	6:43	6:43	6:42	6:42	6:42	6:41	6:41	6:41	6:41	6:40	6:40	6:40	6:39	6:39	6:39	6:38	6:38	6:38	6:38	6:37	6:37	6:37

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.0	6:48	6:45
2	12.0	6:47	6:45
3	12.0	6:47	6:45
4	12.0	6:47	6:44
5	12.0	6:46	6:44
6	12.0	6:46	6:44
7	12.0	6:45	6:44
8	12.0	6:45	6:43
9	12.0	6:45	6:43
10	12.0	6:44	6:43
11	12.0	6:44	6:42
12	12.0	6:43	6:42
13	12.0	6:43	6:42
14	12.0	6:42	6:41
15	12.0	6:42	6:41
16	12.0	6:42	6:41
17	12.0	6:41	6:41
18	12.0	6:41	6:40
19	12.0	6:40	6:40
20	12.0	6:40	6:40
21	12.0	6:39	6:39
22	12.0	6:39	6:39
23	12.0	6:39	6:39
24	12.0	6:38	6:38
25	12.0	6:38	6:38
26	12.0	6:37	6:38
27	12.0	6:37	6:38
28	12.0	6:36	6:37
29	12.0	6:36	6:37
30	12.0	6:36	6:37

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.78 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.69 kWh/m² to a high of 5.78 kWh/m² in September across the year — September's 5.78 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)	5.6	5.6	5.6	5.7	5.7	5.7	5.7	5.7	5.7	5.7	5.7	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.9	5.9	5.9	5.9	5.9	5.9	5.9	5.9	5.9
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	5.6	Bright
2	5.6	Bright
3	5.6	Bright
4	5.7	Bright
5	5.7	Bright
6	5.7	Bright
7	5.7	Bright
8	5.7	Bright
9	5.7	Bright
10	5.7	Bright
11	5.7	Bright
12	5.8	Bright
13	5.8	Bright
14	5.8	Bright
15	5.8	Bright
16	5.8	Bright
17	5.8	Bright
18	5.8	Bright
19	5.8	Bright
20	5.8	Bright
21	5.8	Bright
22	5.9	Bright
23	5.9	Bright
24	5.9	Bright
25	5.9	Bright
26	5.9	Bright
27	5.9	Bright
28	5.9	Bright
29	5.9	Bright
30	5.9	Bright

Planning a trip in September

Hazard calendar for Nhamundá

In seasonPeak

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

Nhamundá's rainy season runs December–May, when most of the year's rain falls.

Rainy season

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is September a good time to visit Nhamundá?

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

3.7

Sightseeing

3rd-best month of the year

6.1

Beach & pool

2nd-best month of the year

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

What to pack for Nhamundá in September

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

In September, Nhamundá sees daytime highs around 32°C and nights near 26°C. Pack light clothes. Worth having: rain gear and sun protection. About 13 days see rain.

light clothesrain gearsun protection

UV index in Nhamundá in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Nhamundá peaks around February 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 16 at about 9 (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	15	14	11	10	10	10	12	11	9	12
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Extreme	Extreme	Extreme	Very high	Extreme

	UV index (midday)	Level
Jan	14	Extreme
Feb	15	Extreme
Mar	15	Extreme
Apr	14	Extreme
May	11	Extreme
Jun	10	Extreme
Jul	10	Very high
Aug	10	Extreme
Sep	12	Extreme
Oct	11	Extreme
Nov	9	Very high
Dec	12	Extreme

Air quality in Nhamundá 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 Nhamundá is worst in November — around 28 µg/m³ PM2.5 (moderate), about 3.2× the cleanest month (June, 9 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)	14	14	15	13	10	9	9	12	20	27	28	18
Level	Moderate	Moderate	Moderate	Moderate	Good	Good	Good	Moderate	Moderate	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	14	Moderate
Feb	14	Moderate
Mar	15	Moderate
Apr	13	Moderate
May	10	Good
Jun	9	Good
Jul	9	Good
Aug	12	Moderate
Sep	20	Moderate
Oct	27	Moderate
Nov	28	Moderate
Dec	18	Moderate

Location & terrain

Where is Nhamundá?

Nhamundá sits at 2.2°S, 56.7°W, 1 m above sea level, in Brazil. The nearest listed city is Terra Santa, 27 km away.

Topography around Nhamundá

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

Within 3 km, the terrain around Nhamundá has only modest variations in elevation — a maximum elevation change of 40 m around an average of 15 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 140 m; within 80 km, only modest variations in elevation — a maximum elevation change of 217 m.

The land around Nhamundá is covered by water (46%), grassland (24%) and trees (23%) within 3 km, trees (48%), water (26%) and grassland (21%) within 16 km, and trees (69%) within 80 km.

3 km

40 m

water 46%

16 km

140 m

trees 48%

80 km

217 m

trees 69%

treesgrasslandartificial surfaceswaterwetland

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

September weather nearby: Terra Santa 27 km · Parintins 49 km · Juruti 69 km · Barreirinha 78 km · Oriximiná 105 km · Urucará 123 km · Óbidos 136 km · Maués 174 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 Nhamundá (-2.1861°, -56.7131°, elevation 1 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	26
9	32	26
10	32	26
11	32	26
12	32	26
13	32	26
14	32	26
15	32	26
16	32	26
17	32	26
18	32	26
19	32	26
20	32	26
21	32	26
22	32	26
23	32	26
24	32	26
25	32	26
26	32	26
27	32	26
28	32	26
29	32	26
30	32	26

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

	Rain chance (%)
1	42
2	43
3	43
4	43
5	43
6	43
7	43
8	43
9	43
10	42
11	42
12	42
13	42
14	42
15	41
16	41
17	41
18	41
19	40
20	40
21	40
22	40
23	40
24	40
25	41
26	41
27	41
28	41
29	42
30	42

	Oppressive (%)	Miserable (%)
1	15	85
2	15	85
3	16	84
4	17	83
5	18	82
6	19	81
7	19	81
8	20	80
9	21	79
10	21	79
11	22	78
12	22	78
13	23	77
14	23	77
15	23	77
16	23	77
17	23	77
18	23	77
19	23	77
20	23	77
21	24	76
22	24	76
23	24	76
24	25	75
25	26	74
26	26	74
27	27	73
28	27	73
29	27	73
30	27	73

	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	26
9	32	26
10	32	26
11	32	26
12	32	26
13	32	26
14	32	26
15	32	26
16	32	26
17	32	26
18	32	26
19	32	26
20	32	26
21	32	26
22	32	26
23	32	26
24	32	26
25	32	26
26	32	26
27	32	26
28	32	26
29	32	26
30	32	26

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

	Rain chance (%)
1	42
2	43
3	43
4	43
5	43
6	43
7	43
8	43
9	43
10	42
11	42
12	42
13	42
14	42
15	41
16	41
17	41
18	41
19	40
20	40
21	40
22	40
23	40
24	40
25	41
26	41
27	41
28	41
29	42
30	42

	Oppressive (%)	Miserable (%)
1	15	85
2	15	85
3	16	84
4	17	83
5	18	82
6	19	81
7	19	81
8	20	80
9	21	79
10	21	79
11	22	78
12	22	78
13	23	77
14	23	77
15	23	77
16	23	77
17	23	77
18	23	77
19	23	77
20	23	77
21	24	76
22	24	76
23	24	76
24	25	75
25	26	74
26	26	74
27	27	73
28	27	73
29	27	73
30	27	73

	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	26
9	32	26
10	32	26
11	32	26
12	32	26
13	32	26
14	32	26
15	32	26
16	32	26
17	32	26
18	32	26
19	32	26
20	32	26
21	32	26
22	32	26
23	32	26
24	32	26
25	32	26
26	32	26
27	32	26
28	32	26
29	32	26
30	32	26

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

	Rain chance (%)
1	42
2	43
3	43
4	43
5	43
6	43
7	43
8	43
9	43
10	42
11	42
12	42
13	42
14	42
15	41
16	41
17	41
18	41
19	40
20	40
21	40
22	40
23	40
24	40
25	41
26	41
27	41
28	41
29	42
30	42

	Oppressive (%)	Miserable (%)
1	15	85
2	15	85
3	16	84
4	17	83
5	18	82
6	19	81
7	19	81
8	20	80
9	21	79
10	21	79
11	22	78
12	22	78
13	23	77
14	23	77
15	23	77
16	23	77
17	23	77
18	23	77
19	23	77
20	23	77
21	24	76
22	24	76
23	24	76
24	25	75
25	26	74
26	26	74
27	27	73
28	27	73
29	27	73
30	27	73