Sintra-Nema in Spring
In spring (March, April and May), Sintra-Nema sees average daytime highs around 34°C and overnight lows near 24°C, with 6 mm of rain over about 1 wet days across the season. It is the warmest season of the year and the 3rd-wettest season.
Over the season highs ease from about 35°C in early March to 33°C by late May. The sky is clear or mostly clear about 62% of the time across spring, and the air most often feels muggy.
Spring is Sintra-Nema's 2nd-best season to visit on our travel score. For the whole year in context, see Sintra-Nema's year-round climate.
- Avg daytime high
- 34°C
- warmest season of the year
- Avg overnight low
- 24°C
- Rainfall
- 6 mm
- 1 wet days
- Avg wind
- 11 km/h
- Travel score
- 3.7
- 2nd-best season
- Months
- Mar · Apr · May
Temperature in Sintra-Nema in Spring
Over the season highs ease from about 35°C in early March to 33°C by late May.
A typical spring day in Sintra-Nema reaches about 34°C and drops to 24°C overnight. The warmest of the three months is March, the coolest March.
How spring really feels in Sintra-Nema
Once humidity and wind are folded in, spring brings about 92 days that feel above 32°C and 0 that feel at or below 0°C.
The story in spring is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Sintra-Nema weather by month
How the three spring months (March, April and May) 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 | 33° / 21° | 0 | 0.1 | 11.4 | 4.4 |
| Feb | 34° / 22° | 1 | 0.1 | 11.6 | 3.6 |
| Mar | 35° / 23° | 0 | 0 | 11.9 | 3.3 |
| Apr | 35° / 24° | 0 | 0 | 12.3 | 3.6 |
| May | 33° / 25° | 6 | 1.3 | 12.5 | 4.1 |
| Jun | 32° / 26° | 87 | 12 | 12.7 | 3.8 |
| Jul | 30° / 25° | 352 | 27.8 | 12.6 | 3.0 |
| Aug | 29° / 25° | 452 | 29.3 | 12.4 | 2.9 |
| Sep | 30° / 25° | 307 | 27.7 | 12.1 | 2.8 |
| Oct | 31° / 25° | 142 | 22 | 11.7 | 3.2 |
| Nov | 33° / 24° | 23 | 4.6 | 11.5 | 4.2 |
| Dec | 33° / 22° | 2 | 0.3 | 11.3 | 4.4 |
Cloud cover in Spring
The sky is clear or mostly clear about 62% of the time across spring.
Chance of precipitation in Spring
Sintra-Nema gets around 6 mm of rain over 1 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 11 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 48 min in early March to 12 h 36 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 6.9 kWh/m².
Hazard calendar for Sintra-Nema
In spring, Sintra-Nema overlaps its dust season. The full year is below, with each hazard's peak months called out.
Sintra-Nema sits in the Atlantic hurricane belt; the season peaks August–October.
Sintra-Nema's monsoon runs July–September, when most of the year's rain falls.
Sintra-Nema sees seasonal dust haze (February–June), heaviest in June.
Is spring a good time to visit Sintra-Nema?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a weaker month for outdoor sightseeing in Sintra-Nema. The water and warmth also suit a beach or pool day.
What to pack for Sintra-Nema in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Sintra-Nema sees daytime highs around 34°C and nights near 24°C. Pack light clothes and sun protection.
Sea temperature near Sintra-Nema in Spring
The nearest coast averages about 27°C across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 27 km away) is warmest in November at about 29°C and coldest in February near 25°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 25 | 25 | 26 | 27 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 27 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Tropical | Tropical | Warm | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 25 | Warm |
| Feb | 25 | Warm |
| Mar | 26 | Warm |
| Apr | 27 | Warm |
| May | 28 | Warm |
| Jun | 28 | Tropical |
| Jul | 28 | Tropical |
| Aug | 28 | Warm |
| Sep | 28 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 27 | Warm |
UV index in Sintra-Nema in Spring
Clear-sky midday UV across spring averages around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Sintra-Nema peaks around August 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 7 (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) | 8 | 11 | 13 | 11 | 11 | 12 | 12 | 13 | 12 | 11 | 9 | 7 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 8 | Very high |
| Feb | 11 | Extreme |
| Mar | 13 | Extreme |
| Apr | 11 | Extreme |
| May | 11 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 13 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 9 | Very high |
| Dec | 7 | Very high |
Air quality in Sintra-Nema in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.
Air quality in Sintra-Nema is worst in February — around 86 µg/m³ PM2.5 (unhealthy), about 5.5× the cleanest month (August, 16 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) | 63 | 86 | 76 | 51 | 53 | 50 | 24 | 16 | 18 | 35 | 45 | 58 |
| Level | Unhealthy | Unhealthy | Unhealthy | Poor | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Poor | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 63 | Unhealthy |
| Feb | 86 | Unhealthy |
| Mar | 76 | Unhealthy |
| Apr | 51 | Poor |
| May | 53 | Poor |
| Jun | 50 | Poor |
| Jul | 24 | Moderate |
| Aug | 16 | Moderate |
| Sep | 18 | Moderate |
| Oct | 35 | Moderate |
| Nov | 45 | Poor |
| Dec | 58 | Unhealthy |
Where is Sintra-Nema?
Sintra-Nema sits at 11.9°N, 15.6°W, 11 m above sea level, in Guinea-Bissau. The nearest listed city is Bissau, 0.0 km away.
Topography around Sintra-Nema
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sintra-Nema.
Within 3 km, the terrain around Sintra-Nema has only modest variations in elevation — a maximum elevation change of 43 m around an average of 14 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 48 m; within 80 km, only modest variations in elevation — a maximum elevation change of 61 m.
The land around Sintra-Nema is covered by artificial surfaces (62%) within 3 km, water (44%) within 16 km, and trees (41%) and water (32%) within 80 km.
Guinea-Bissau travel facts
- Travel advisory
- Level 3
- Reconsider Travel
- Power plugs
- Type C / E / F
- 220 V · 50 Hz
- Prices
- ≈ 34% of US
- price level, 2025
- GDP per capita
- $1,124
- 2025
- Safe drinking water
- 24%
- of population, 2024
- Homicide rate
- 1.1
- per 100k, 2017
- Road deaths
- 32.2
- per 100k/yr, 2019
- Income group
- Low
- World Bank
- 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 Sintra-Nema (11.8624°, -15.5974°, elevation 11 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.