Monsanto weather in August

In August, Monsanto sees average daytime highs of 28°C and overnight lows near 16°C, with 10 mm of rain across 2.5 wet days and about 13.5 hours of daylight. It is the 1st-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 75% of the time in August, and the air most often feels comfortable.

Daylight stretches from about 14 h 06 min at the start of August to 13 hours by month's end. Set against the rest of the year, August is Monsanto's 2nd-clearest and 3rd-windiest month. For the whole year in context, see Monsanto's year-round climate.

Daytime high
28°
1st warmest
Overnight low
16°
12th coldest
Rainfall
10 mm
2.5 wet days
Daylight
13 h 36 min
5:52 AM – 7:26 PM
Cloud cover
24%
2nd clearest
Wind
14 km/h
3rd windiest
Solar energy
6.71 kWh/m²
Travel score
7.8
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical August day in Monsanto reaches about 28°C in the afternoon and slips back to 16°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 34°C. Set against its neighbours, August runs on par with July and about 2°C warmer than September.

10°20°30°40°151015202531
Avg high (°C)Avg low (°C)
12816
22816
32816
42816
52816
62816
72816
82816
92816
102816
112816
122816
132816
142816
152816
162816
172816
182816
192816
202816
212816
222816
232816
242816
252816
262816
272816
282816
292716
302716
312716

Monsanto weather by month

How August compares with the rest of the year at a glance. August 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
Jan13° / 8610.29.53.9
Feb15° / 658.110.44.7
Mar18° / 739.211.75.9
Apr19° / 10°8010.5136.1
May22° / 12°728.614.17.0
Jun25° / 14°203.914.78.1
Jul27° / 16°61.814.58.3
Aug28° / 16°102.513.57.8
Sep26° / 15°455.712.37.8
Oct22° / 13°9910.1116.6
Nov17° / 97119.85.2
Dec14° / 919.99.34.1

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 75% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 13% of August, with mostly cloudy or overcast conditions the remaining 12%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
19010
28911
38911
48911
58911
68911
78911
88911
98911
108812
118812
128812
138812
148812
158812
168812
178812
188812
198812
208812
218713
228713
238713
248713
258713
268614
278614
288515
298515
308515
318515

Chance of precipitation in August

Any precipitation

Monsanto gets around 10 mm of rain over 2.5 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 8% and peaks near 10% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
16
27
37
47
57
67
77
87
97
107
118
128
138
148
158
168
178
188
198
208
218
228
238
248
259
269
279
289
299
3010
3110

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the comfortable band about 53% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11658251
21658251
31757251
41856251
51955251
61955251
72054251
82054251
92053261
102053261
112053261
121954261
131953262
141952272
151952272
161853272
171853272
181852282
191853281
201853281
211853281
221853281
231853281
241952281
251952281
262051281
272151271
282250271
292250271
302349271
312349271

Wind in August

Winds average 14 km/h in August.

Across August, daily wind ranges from about 12 km/h on the calmest days to 15 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
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 06 min at the start of August to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over August. Sunrise moves from 5:38 AM to 6:06 AM, and sunset from 7:44 PM to 7:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.15:387:44
214.15:397:43
314.05:407:42
414.05:417:41
514.05:427:40
613.95:437:38
713.95:447:37
813.95:447:36
913.85:457:35
1013.85:467:34
1113.85:477:32
1213.75:487:31
1313.75:497:30
1413.65:507:29
1513.65:517:27
1613.65:527:26
1713.55:537:24
1813.55:547:23
1913.45:557:22
2013.45:567:20
2113.45:577:19
2213.35:587:17
2313.35:597:16
2413.26:007:14
2513.26:017:13
2613.26:027:11
2713.16:037:10
2813.16:047:08
2913.06:047:07
3013.06:057:05
3113.06:067:03

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.71 kWh/m².

For context, solar energy here swings from a low near 1.93 kWh/m² to a high of 7.53 kWh/m² in July across the year — August's 6.71 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.3Intense
27.2Intense
37.2Intense
47.2Intense
57.1Intense
67.1Intense
77.1Intense
87.0Intense
97.0Intense
107.0Intense
116.9Intense
126.9Intense
136.8Intense
146.8Intense
156.8Intense
166.7Intense
176.7Intense
186.6Intense
196.6Intense
206.5Intense
216.5Intense
226.5Intense
236.4Intense
246.4Intense
256.3Intense
266.3Intense
276.3Intense
286.2Intense
296.2Intense
306.1Intense
316.1Intense
Planning a trip in August

Hazard calendar for Monsanto

In seasonPeak

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

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

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

Is August a good time to visit Monsanto?

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

7.8
Sightseeing
3rd-best month of the year
8.6
Beach & pool
1st-best month of the year

August is one of the better times to visit Monsanto for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Monsanto in August

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

In August, Monsanto sees daytime highs around 28°C and nights near 16°C. Pack light clothes and sun protection.

light clothessun protection

Sea temperature near Monsanto in August

The nearest coast averages about 19°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 40 km away) is warmest in August at about 19°C and coldest in February near 14°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

12°14°16°18°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan15Bracing
Feb14Bracing
Mar14Bracing
Apr15Cool
May16Cool
Jun18Cool
Jul18Cool
Aug19Cool
Sep19Cool
Oct18Cool
Nov17Cool
Dec15Cool

UV index in Monsanto in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Monsanto peaks around July 14 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 14UV 9Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar6High
Apr7Very high
May7High
Jun9Very high
Jul9Very high
Aug8Very high
Sep6High
Oct5Moderate
Nov2Moderate
Dec2Low
Location & terrain

Where is Monsanto?

Monsanto sits at 39.5°N, 8.7°W, 143 m above sea level, in Portugal. The nearest listed city is Torres Novas, 15 km away.

Topography around Monsanto

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

Within 3 km, the terrain around Monsanto has significant variations in elevation — a maximum elevation change of 312 m around an average of 152 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 668 m; within 80 km, large variations in elevation — a maximum elevation change of 1,078 m.

The land around Monsanto is covered by trees (57%) and grassland (29%) within 3 km, trees (45%) and grassland (39%) within 16 km, and trees (42%) and grassland (29%) within 80 km.

3 km
312 m
16 km
668 m
80 km
1,078 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Torres Novas 15 km · Entroncamento 21 km · Alcobaça 25 km · Santarém 25 km · Tomar 30 km · Leiria 32 km · Marinha Grande 37 km · Caldas da Rainha 37 km

Portugal travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / E / F
230 V · 50 Hz
Prices
≈ 60% of US
price level, 2025
GDP per capita
$32,082
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
95%
of population, 2024
Homicide rate
0.7
per 100k, 2022
Road deaths
8.2
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 612
Religion
Catholic 68%not applicable 13%no religion 12%no response 2%

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 Monsanto (39.462°, -8.7118°, elevation 143 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).