worldweather30°Cexceptionally warm
usually 25°C–28°C
warmer than 90% of similar days
night: exceptionally warm
rain: exceptionally wet
wind: typical
Weather in Algarve - 14-day forecast
Detailed weather forecast for Algarve, Portugal: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Algarve
today🌧️
30°💧 3 mm
Sun🌧️
28°💧 0.1 mm
Mon🌤️
27°💧 3 mm
Tue☀️
28°💧 2.7 mm
Wed🌤️
28°💧 0.9 mm
Thu☁️
24°night 25°
Fri☀️
26°night 26°
Sat☀️
26°night 26°
Forecast vs 1991-2020 climate normal
NASA POWERHow does the current forecast compare with normal?
We compare the coming days with weather usually observed at this time of year.
Saturday 5 Sept in Algarve, the forecast high is 30°C. Typical daytime temperatures at this time of year range from 25°C to 28°C, so it will be exceptionally warm. It is warmer than 90% of similar days.
28°Cwarmer than usual
usually 25°C–28°C
warmer than 82% of similar days
night: exceptionally warm
rain: exceptionally wet
wind: exceptionally light
27°Cnear normal
usually 25°C–28°C
night: exceptionally warm
rain: exceptionally wet
wind: lighter than usual
28°Cwarmer than usual
usually 24°C–28°C
warmer than 84% of similar days
night: exceptionally warm
rain: exceptionally wet
wind: typical
28°Cwarmer than usual
usually 24°C–28°C
warmer than 83% of similar days
night: exceptionally warm
rain: exceptionally wet
wind: typical
24°Ccooler than usual
usually 24°C–28°C
cooler than 81% of similar days
night: exceptionally warm
rain: typical rainfall
wind: exceptionally light
26°Cnear normal
usually 24°C–28°C
night: exceptionally warm
rain: typical rainfall
wind: exceptionally light
How warm was this week in previous years?
Each bar shows the average daily high during the same 7-day period in each year.
cooler yearstypical rangewarmer years2026 forecastcurrent forecast
From 1981 to 2025, the 5-11 Sept period averaged 26°C by day. The coolest year was 2023 (24°C) and the warmest was 1987 (30°C). The current forecast averages 27°C - higher than in 73% of historical years.
Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.
Weather warnings - Algarve
Heatyellow level
from 3 Sept, 11:00 to 6 Sept, 20:00
Areas: Portugal
High temperatures and risk of overheating. Drink plenty of water, avoid the midday sun and look after the elderly.
Source: national weather service via Meteoalarm (EUMETNET). Yellow - be aware, orange - be prepared, red - take action.
14-day forecast - Algarve
Algarve 30 & 45-day weather - long-range outlook
Next 16 days · forecast
26°
around 25° at night · days with rain: 3
Weeks 3-4 · avg for September
26°
around 19° at night · rain chance 8%
Weeks 5-7 · avg for October
24°
around 17° at night · rain chance 27%
The 30 & 45-day outlook for Algarve: the next 16 days are a numerical forecast updated daily - on average 26° by day and 25° at night. Further out we rely on multi-year climate averages: around 26° in September, and about 24° in October. Forecasts beyond two weeks are indicative only.
Day-by-day forecast for Algarve
Saturday5 September 2026
🌧️30°light rain
Sunday6 September 2026
🌧️28°light rain
Monday7 September 2026
🌤️27°scattered clouds
Tuesday8 September 2026
☀️28°clear sky
Wednesday9 September 2026
🌤️28°a few clouds
Thursday10 September 2026
☁️24°broken clouds
Friday11 September 2026
☀️26°clear sky
Saturday12 September 2026
☀️26°clear sky
Sunday13 September 2026
☀️24°clear sky
Monday14 September 2026
☁️28°broken clouds
Tuesday15 September 2026
☀️24°clear sky
Wednesday16 September 2026
☀️25°clear sky
Thursday17 September 2026
☀️25°clear sky
Friday18 September 2026
🌤️24°scattered clouds
Saturday19 September 2026
☁️24°broken clouds
Sunday20 September 2026
☀️24°clear sky
UV index in Algarve - is it safe to sunbathe?
Today the UV index in Algarve is 7 (high) - unprotected fair skin can burn in about 30 minutes. SPF 30-50, a hat and sunglasses are a must. Better stay in shade between 11:00 and 15:00.
Pollen in Algarve - info for allergy sufferers
Today grasses pollen is highest in Algarve - about 3 grains/m³, low level. Most allergy sufferers should not feel strong symptoms. Pollen levels are a CAMS model forecast and are indicative.
Sea temperature - Algarve
Water today
20°C
Week avg
20°C
Waves today
0.4 m
How's the water?
brisk
16-day sea temperature forecast:
Average sea temperature through the year:
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.
Algarve weather through the year
Upcoming public holidays in Portugal: Republic Day — 5 October · All Saints Day — 1 November · Restoration of Independence — 1 December.
Nearby and related places
FAQ - Algarve weather
What is the weather like in Algarve today?
Today it is about 30° during the day and 27° at night, light rain.
How far ahead can I check the forecast for Algarve?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.