worldweather36°Cexceptionally warm
usually 26°C–34°C
warmer than 93% of similar days
night: exceptionally warm
rain: more rain than usual
wind: exceptionally strong
Weather in Coimbra - 14-day forecast
Detailed weather forecast for Coimbra, Portugal: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Coimbra
today☀️
36°💧 0.7 mm
Sun☀️
31°💧 1.2 mm
Mon☀️
31°💧 0.4 mm
Tue☁️
28°night 17°
Wed☁️
30°night 17°
Thu☀️
33°💧 1.6 mm
Fri☀️
37°💧 0.3 mm
Sat☀️
37°💧 0.1 mm
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.
Friday 11 Sept in Coimbra, the forecast high is 37°C. Typical daytime temperatures at this time of year range from 24°C to 33°C, so it will be exceptionally warm. It is warmer than 96% of similar days.
31°Cnear normal
usually 26°C–34°C
night: warmer than usual
rain: more rain than usual
wind: exceptionally strong
31°Cnear normal
usually 25°C–34°C
night: warmer than usual
rain: more rain than usual
wind: exceptionally strong
28°Cnear normal
usually 25°C–34°C
night: warmer than usual
rain: typical rainfall
wind: stronger than usual
30°Cnear normal
usually 25°C–34°C
night: warmer than usual
rain: less rain than usual
wind: exceptionally strong
33°Cwarmer than usual
usually 25°C–33°C
warmer than 77% of similar days
night: warmer than usual
rain: more rain than usual
wind: exceptionally strong
37°Cexceptionally warm
usually 24°C–33°C
warmer than 96% of similar days
night: exceptionally warm
rain: typical rainfall
wind: exceptionally strong
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 30°C by day. The coolest year was 1993 (23°C) and the warmest was 1988 (37°C). The current forecast averages 32°C - higher than in 76% 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Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window.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 - Coimbra
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 - Coimbra
Coimbra 30 & 45-day weather - long-range outlook
Next 16 days · forecast
33°
around 20° at night · days with rain: 2
Weeks 3-4 · avg for September
25°
around 14° at night · rain chance 18%
Weeks 5-7 · avg for October
23°
around 14° at night · rain chance 37%
The 30 & 45-day outlook for Coimbra: the next 16 days are a numerical forecast updated daily - on average 33° by day and 20° at night. Further out we rely on multi-year climate averages: around 25° in September, and about 23° in October. Forecasts beyond two weeks are indicative only.
Day-by-day forecast for Coimbra
Saturday5 September 2026
☀️36°clear sky
Sunday6 September 2026
☀️31°clear sky
Monday7 September 2026
☀️31°clear sky
Tuesday8 September 2026
☁️28°broken clouds
Wednesday9 September 2026
☁️30°broken clouds
Thursday10 September 2026
☀️33°clear sky
Friday11 September 2026
☀️37°clear sky
Saturday12 September 2026
☀️37°clear sky
Sunday13 September 2026
🌤️36°a few clouds
Monday14 September 2026
☀️32°clear sky
Tuesday15 September 2026
☀️31°clear sky
Wednesday16 September 2026
☀️32°clear sky
Thursday17 September 2026
☀️33°clear sky
Friday18 September 2026
🌤️34°scattered clouds
Saturday19 September 2026
☁️36°overcast clouds
Sunday20 September 2026
☁️31°overcast clouds
UV index in Coimbra - is it safe to sunbathe?
Today the UV index in Coimbra 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 Coimbra - info for allergy sufferers
Today grasses pollen is highest in Coimbra - about 2 grains/m³, low level. Most allergy sufferers should not feel strong symptoms. Pollen levels are a CAMS model forecast and are indicative.
Air quality and smog in Coimbra
Air quality in Coimbra is currently good. Fine particulate PM2.5: 17.3 µg/m³, PM10: 30 µg/m³.
| City | PM2.5 (µg/m³) | PM10 (µg/m³) | Air quality |
|---|---|---|---|
| Coimbra | 17.3 | 30 | good |
Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-09-05, 02:00).
Coimbra 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 - Coimbra weather
What is the weather like in Coimbra today?
Today it is about 36° during the day and 24° at night, clear sky.
How far ahead can I check the forecast for Coimbra?
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.