Oiapoque weather in October

In October, Oiapoque sees average daytime highs of 33°C and overnight lows near 23°C, with 41 mm of rain across 8.2 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 33°C through the month. The sky is clear or mostly clear about 48% of the time in October, and the air most often feels oppressive.

Daylight stretches from about 12 hours at the start of October to 11 h 54 min by month's end. Set against the rest of the year, October is Oiapoque's 2nd-clearest and 3rd-windiest month. For the whole year in context, see Oiapoque's year-round climate.

Daytime high
33°
1st warmest
Overnight low
23°
6th coldest
Rainfall
41 mm
8.2 wet days
Daylight
11 h 54 min
6:15 AM – 6:10 PM
Cloud cover
46%
2nd clearest
Wind
8 km/h
3rd windiest
Solar energy
5.94 kWh/m²
Travel score
3.7
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 33°C through the month.

A typical October day in Oiapoque reaches about 33°C in the afternoon and slips back to 23°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 35°C. Set against its neighbours, October runs on par with September and about 1°C warmer than November.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13323
23323
33323
43323
53323
63323
73323
83323
93323
103323
113323
123323
133323
143323
153323
163323
173323
183323
193323
203323
213323
223323
233323
243323
253323
263323
273323
283323
293323
303323
313323

How October really feels in Oiapoque

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

Oiapoque weather by month

How October compares with the rest of the year at a glance. October 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
Jan29° / 23°28426.911.83.4
Feb29° / 23°26222.811.93.5
Mar29° / 23°21323.6123.5
Apr29° / 23°27125.112.13.2
May29° / 23°38129.112.22.9
Jun30° / 23°27627.312.23.0
Jul30° / 23°19025.112.23.4
Aug31° / 23°9415.612.14.0
Sep33° / 23°367.1124.1
Oct33° / 23°418.211.93.7
Nov32° / 23°10616.411.83.4
Dec30° / 23°2342611.83.2

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 25% of October, with mostly cloudy or overcast conditions the remaining 27%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18119
28020
38020
48020
57921
67921
77822
87822
97723
107723
117723
127624
137624
147624
157525
167525
177525
187426
197327
207327
217228
227030
237030
246931
256733
266634
276436
286337
296238
306139
315941

Chance of precipitation in October

Any precipitation

Oiapoque gets around 41 mm of rain over 8.2 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 26% and peaks near 40% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
124
224
324
424
524
624
724
823
923
1023
1122
1222
1322
1421
1521
1621
1722
1822
1923
2024
2126
2227
2329
2430
2532
2633
2735
2836
2937
3039
3140

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the oppressive band about 92% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
17921
27921
36931
46931
56931
66931
76931
86931
96931
106931
116931
126931
136931
146931
156931
166931
176931
187921
197912
207912
217912
227903
237903
246904
256904
266895
276895
286895
295896
305896
315887

Wind in October

Winds average 8 km/h in October.

Across October, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in October

DaylightNight

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

Days shrink by about 6 minutes over October. Sunrise moves from 6:17 AM to 6:15 AM, and sunset from 6:15 PM to 6:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:176:15
212.06:176:15
312.06:176:14
412.06:176:14
512.06:176:14
611.96:166:13
711.96:166:13
811.96:166:12
911.96:166:12
1011.96:166:12
1111.96:166:11
1211.96:156:11
1311.96:156:11
1411.96:156:10
1511.96:156:10
1611.96:156:10
1711.96:156:10
1811.96:156:09
1911.96:156:09
2011.96:156:09
2111.96:156:08
2211.96:156:08
2311.96:156:08
2411.96:156:08
2511.96:156:08
2611.96:156:07
2711.96:156:07
2811.96:156:07
2911.96:156:07
3011.96:156:07
3111.96:156:07

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.94 kWh/m².

For context, solar energy here swings from a low near 3.68 kWh/m² to a high of 6 kWh/m² in September across the year — October's 5.94 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.1Intense
56.1Intense
66.0Intense
76.0Intense
86.0Intense
96.0Intense
106.0Intense
116.0Intense
126.0Intense
136.0Bright
146.0Bright
156.0Bright
166.0Bright
176.0Bright
185.9Bright
195.9Bright
205.9Bright
215.9Bright
225.9Bright
235.8Bright
245.8Bright
255.8Bright
265.8Bright
275.7Bright
285.7Bright
295.7Bright
305.6Bright
315.6Bright
Planning a trip in October

Is October a good time to visit Oiapoque?

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

3.7
Sightseeing
3rd-best month of the year
6.6
Beach & pool
2nd-best month of the year

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

What to pack for Oiapoque in October

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

In October, Oiapoque sees daytime highs around 33°C and nights near 23°C. Pack light clothes. Worth having: rain gear and sun protection. About 8 days see rain.

light clothesrain gearsun protection

Sea temperature near Oiapoque in October

The nearest coast averages about 29°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 64 km away) is warmest in October at about 29°C and coldest in February near 27°C.

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

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr28Warm
May28Warm
Jun28Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Oiapoque in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October 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 Oiapoque peaks around April 12 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeApr 12UV 14Nov 23UV 11
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar14Extreme
Apr14Extreme
May13Extreme
Jun12Extreme
Jul11Extreme
Aug11Extreme
Sep12Extreme
Oct13Extreme
Nov11Extreme
Dec11Extreme

Air quality in Oiapoque in October

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Oiapoque is worst in February — around 26 µg/m³ PM2.5 (moderate), about 3.9× the cleanest month (August, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateFeb 1925 µg/m³Aug 117 µg/m³
PM2.5 (µg/m³)Level
Jan22Moderate
Feb26Moderate
Mar25Moderate
Apr23Moderate
May15Moderate
Jun9Good
Jul7Good
Aug7Good
Sep8Good
Oct10Good
Nov11Good
Dec18Moderate
Location & terrain

Where is Oiapoque?

Oiapoque sits at 3.8°N, 51.8°W, 18 m above sea level, in Brazil. The nearest listed city is Matoury, 124 km away.

Saint-Laurent-du-MaroniPorto GrandeBlauwgrondRainville

Topography around Oiapoque

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

Within 3 km, the terrain around Oiapoque has only modest variations in elevation — a maximum elevation change of 97 m around an average of 28 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 124 m; within 80 km, significant variations in elevation — a maximum elevation change of 482 m.

The land around Oiapoque is covered by trees (72%) within 3 km, trees (93%) within 16 km, and trees (75%) within 80 km.

3 km
97 m
16 km
124 m
80 km
482 m
treesgrasslandartificial surfaceswaterwetlandmangroves
October weather nearby: Matoury 124 km · Rémire-Montjoly 129 km · Cayenne 134 km · Kourou 172 km · Saint-Laurent-du-Maroni 305 km · Porto Grande 351 km · Blauwgrond 426 km · Rainville 428 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
Roman Catholic 57%Evangelical 27%none 9%other 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 Oiapoque (3.8431°, -51.835°, 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. 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).