Oeiras weather in July

In July, Oeiras sees average daytime highs of 34°C and overnight lows near 23°C, with 2 mm of rain across 0.4 wet days and about 11.6 hours of daylight. It is the 6th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 34°C through the month. The sky is clear or mostly clear about 64% of the time in July, and the air most often feels humid.

Daylight stretches from about 11 h 36 min at the start of July to 11 h 42 min by month's end. Set against the rest of the year, July is Oeiras's 3rd-clearest and 2nd-windiest month. For the whole year in context, see Oeiras's year-round climate.

Daytime high
34°
6th warmest
Overnight low
23°
2nd coldest
Rainfall
2 mm
0.4 wet days
Daylight
11 h 36 min
6:05 AM – 5:43 PM
Cloud cover
34%
3rd clearest
Wind
15 km/h
2nd windiest
Solar energy
5.41 kWh/m²
Travel score
4.1
out of 10

Oeiras is human settlement in Brazil.

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 34°C through the month.

A typical July day in Oeiras reaches about 34°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, July runs on par with June and about 1°C cooler than August.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13324
23323
33323
43323
53323
63323
73323
83323
93323
103323
113423
123423
133423
143423
153423
163423
173423
183423
193423
203423
213423
223423
233423
243423
253423
263423
273423
283423
293423
303423
313423

How July really feels in Oeiras

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

Oeiras weather by month

How July compares with the rest of the year at a glance. July is the 6th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 24°16519.712.43.0
Feb32° / 23°16618.212.23.1
Mar32° / 23°16120.5123.2
Apr32° / 24°9013.211.83.6
May33° / 24°334.811.73.8
Jun33° / 24°30.511.64.2
Jul34° / 23°20.411.64.1
Aug35° / 24°00.111.83.4
Sep36° / 25°10.2122.4
Oct37° / 27°14212.22.0
Nov35° / 26°446.212.32.5
Dec34° / 25°8110.712.42.9

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 64% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 16% of July, with mostly cloudy or overcast conditions the remaining 20%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17723
27723
37723
47624
57624
67624
77624
87624
97525
107525
117525
127525
137525
147624
157723
167723
177921
187921
198020
208119
218218
228218
238317
248317
258515
268515
278515
288515
298614
308713
318713

Chance of precipitation in July

Any precipitation

Oeiras gets around 2 mm of rain over 0.4 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 1% and peaks near 2% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
11
21
31
41
51
61
71
81
91
101
111
122
132
142
152
162
171
181
191
201
211
221
231
241
251
261
271
281
291
301
311

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the humid band about 51% of days. Sticky, muggy-or-worse air turns up on roughly 8% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
122163131
222263121
322362121
432361121
532461111
632560111
732659111
832759101
932858101
1032957101
113305791
123325591
133335491
143345490
153355480
163375280
173385270
183405070
193414960
203434860
214444760
224454550
234464450
244484350
254494240
264514140
275514040
285523940
295533840
305543740
315553640

Wind in July

Winds average 15 km/h in July.

Across July, daily wind ranges from about 15 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze
3116light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 11 h 36 min at the start of July to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over July. Sunrise moves from 6:04 AM to 6:04 AM, and sunset from 5:40 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:045:40
211.66:045:40
311.66:045:40
411.66:045:40
511.66:055:41
611.66:055:41
711.66:055:41
811.66:055:41
911.66:055:42
1011.66:055:42
1111.66:055:42
1211.66:055:42
1311.66:055:42
1411.66:055:43
1511.66:055:43
1611.66:055:43
1711.66:055:43
1811.66:055:43
1911.66:055:44
2011.66:055:44
2111.66:055:44
2211.66:055:44
2311.76:055:44
2411.76:055:44
2511.76:055:44
2611.76:055:45
2711.76:055:45
2811.76:055:45
2911.76:045:45
3011.76:045:45
3111.76:045:45

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.41 kWh/m².

For context, solar energy here swings from a low near 4.96 kWh/m² to a high of 6.77 kWh/m² in September across the year — July's 5.41 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.4Bright
175.4Bright
185.4Bright
195.5Bright
205.5Bright
215.5Bright
225.6Bright
235.6Bright
245.6Bright
255.7Bright
265.7Bright
275.7Bright
285.8Bright
295.8Bright
305.8Bright
315.9Bright
Planning a trip in July

Hazard calendar for Oeiras

In seasonPeak

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

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

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

Is July a good time to visit Oeiras?

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

4.1
Sightseeing
2nd-best month of the year
7.8
Beach & pool
1st-best month of the year

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

What to pack for Oeiras in July

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

In July, Oeiras sees daytime highs around 34°C and nights near 23°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Oeiras in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July 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 Oeiras peaks around March 10 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 10UV 15Jun 23UV 10
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Very high
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec12Extreme
Location & terrain

Where is Oeiras?

Oeiras sits at 7.0°S, 42.1°W, 181 m above sea level, in Brazil. The nearest listed city is Picos, 74 km away.

Topography around Oeiras

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

Within 3 km, the terrain around Oeiras has only modest variations in elevation — a maximum elevation change of 114 m around an average of 196 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 173 m; within 80 km, significant variations in elevation — a maximum elevation change of 468 m.

The land around Oeiras is covered by shrubs (53%) within 3 km, shrubs (68%) and trees (24%) within 16 km, and shrubs (56%) and trees (33%) within 80 km.

3 km
114 m
16 km
173 m
80 km
468 m
treesshrubsgrasslandcroplandartificial surfaces
July weather nearby: Picos 74 km · Valença do Piauí 81 km · Floriano 103 km · Barão de Grajaú 103 km · Regeneração 108 km · Jaicós 116 km · Amarante 117 km · Água Branca 138 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 Oeiras (-7.0253°, -42.1311°, elevation 181 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).