Monsanto in Fall
In fall (September, October and November), Monsanto sees average daytime highs around 21°C and overnight lows near 12°C, with 241 mm of rain over about 27 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Over the season highs ease from about 27°C in early September to 15°C by late November. The sky is clear or mostly clear about 43% of the time across fall, and the air most often feels dry.
Fall is Monsanto's 2nd-best season to visit on our travel score. For the whole year in context, see Monsanto's year-round climate.
- Avg daytime high
- 21°C
- 2nd-warmest season
- Avg overnight low
- 12°C
- Rainfall
- 241 mm
- 27 wet days
- Avg wind
- 12 km/h
- Travel score
- 6.5
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Monsanto in Fall
Over the season highs ease from about 27°C in early September to 15°C by late November.
A typical fall day in Monsanto reaches about 21°C and drops to 12°C overnight. The warmest of the three months is September, the coolest November.
Monsanto weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 13° / 6° | 86 | 10.2 | 9.5 | 3.9 |
| Feb | 15° / 7° | 65 | 8.1 | 10.4 | 4.7 |
| Mar | 18° / 8° | 73 | 9.2 | 11.7 | 5.9 |
| Apr | 19° / 10° | 80 | 10.5 | 13 | 6.1 |
| May | 22° / 12° | 72 | 8.6 | 14.1 | 7.0 |
| Jun | 25° / 14° | 20 | 3.9 | 14.7 | 8.1 |
| Jul | 27° / 16° | 6 | 1.8 | 14.5 | 8.3 |
| Aug | 28° / 16° | 10 | 2.5 | 13.5 | 7.8 |
| Sep | 26° / 15° | 45 | 5.7 | 12.3 | 7.8 |
| Oct | 22° / 13° | 99 | 10.1 | 11 | 6.6 |
| Nov | 17° / 9° | 97 | 11 | 9.8 | 5.2 |
| Dec | 14° / 7° | 91 | 9.9 | 9.3 | 4.1 |
Cloud cover in Fall
The sky is clear or mostly clear about 43% of the time across fall.
Chance of precipitation in Fall
Monsanto gets around 241 mm of rain over 27 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 12 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 54 min in early September to 9 h 24 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 3.7 kWh/m².
Hazard calendar for Monsanto
In fall, Monsanto overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Monsanto's rainy season runs September–May, when most of the year's rain falls.
Is fall a good time to visit Monsanto?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Monsanto for sightseeing.
What to pack for Monsanto in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Monsanto sees daytime highs around 21°C and nights near 12°C. Worth packing: light clothes, a warm layer, rain gear and sun protection. About 27 days see rain.
Sea temperature near Monsanto in Fall
The nearest coast averages about 18°C across fall — 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 15 | 14 | 14 | 15 | 16 | 18 | 18 | 19 | 19 | 18 | 17 | 15 |
| Comfort | Bracing | Bracing | Bracing | Cool | Cool | Cool | Cool | Cool | Cool | Cool | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 15 | Bracing |
| Feb | 14 | Bracing |
| Mar | 14 | Bracing |
| Apr | 15 | Cool |
| May | 16 | Cool |
| Jun | 18 | Cool |
| Jul | 18 | Cool |
| Aug | 19 | Cool |
| Sep | 19 | Cool |
| Oct | 18 | Cool |
| Nov | 17 | Cool |
| Dec | 15 | Cool |
UV index in Monsanto in Fall
Clear-sky midday UV across fall averages around 4 — enough to warrant sun protection. 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 6 | 7 | 7 | 9 | 9 | 8 | 6 | 5 | 2 | 2 |
| Level | Low | Moderate | High | Very high | High | Very high | Very high | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 6 | High |
| Apr | 7 | Very high |
| May | 7 | High |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 8 | Very high |
| Sep | 6 | High |
| Oct | 5 | Moderate |
| Nov | 2 | Moderate |
| Dec | 2 | Low |
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.
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
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.