Yearly weather

Calculations are based on the last 8 years of historical weather data.

Weather Score #

Heat Seeker Score is a composite score designed for those who crave hot, sunny weather with minimal rainfall. It prioritizes high temperatures and abundant sunshine.

Perfect for sun worshippers, beach lovers, and those seeking warm, dry climates for outdoor activities and relaxation.

Formula optimized for hot weather enthusiasts who prefer temperatures above 25°C (77°F) with maximum sun exposure and minimal precipitation.

Key factors in the calculation:

High temperatures: Favors locations with warm to hot daily highs
Abundant sunshine: Rewards areas with maximum daylight hours
Low precipitation: Penalizes frequent rain and wet conditions
Warm nights: Considers comfortable evening temperatures

Temperatures #

The temperatures in Porto, Vila Nova de Gaia, Lisbon, and Sintra are quite similar throughout the year, with Lisbon having slightly warmer maximum temperatures in the summer months
Aves tends to have slightly lower minimum temperatures in the winter and higher maximum temperatures in the summer compared to the other cities
Aves is the only location which gets close to discomfort temperatures in summer, reaching up to 29.5C in August
All locations maintain comfortable temperatures for a significant portion of the year, particularly from late spring to early autumn.

Maximum Temperatures

Period	Porto	Lisbon	Aves	Sintra	Vila Nova de Gaia
Jan	13.9°C	15.1°C	12.9°C	14.7°C	13.9°C
Feb	15.3°C	16.5°C	14.9°C	15.9°C	15.3°C
Mar	15.9°C	17.2°C	16.0°C	16.4°C	15.9°C
Apr	18.2°C	19.6°C	18.9°C	18.0°C	18.2°C
May	20.9°C	22.9°C	22.5°C	20.5°C	20.9°C
Jun	22.2°C	24.4°C	24.4°C	21.9°C	22.2°C
Jul	25.0°C	27.1°C	28.8°C	24.1°C	25.0°C
Aug	25.5°C	27.7°C	29.6°C	24.4°C	25.5°C
Sep	24.0°C	25.7°C	26.1°C	23.4°C	24.0°C
Oct	21.2°C	23.1°C	21.5°C	21.6°C	21.2°C
Nov	16.8°C	18.4°C	15.8°C	17.9°C	16.8°C
Dec	14.7°C	16.0°C	13.4°C	15.7°C	14.7°C
Average	20.4°C	21.1°C	19.5°C	19.5°C	19.5°C

Minimum Temperatures

Period	Porto	Lisbon	Aves	Sintra	Vila Nova de Gaia
Jan	8.4°C	9.4°C	5.3°C	9.9°C	8.4°C
Feb	9.1°C	10.1°C	6.1°C	10.4°C	9.1°C
Mar	9.6°C	10.6°C	6.6°C	10.9°C	9.6°C
Apr	11.4°C	12.2°C	8.4°C	12.3°C	11.3°C
May	13.8°C	14.5°C	11.1°C	14.4°C	13.8°C
Jun	15.7°C	16.3°C	13.2°C	16.1°C	15.7°C
Jul	17.6°C	17.6°C	15.7°C	17.4°C	17.6°C
Aug	17.9°C	18.0°C	15.9°C	17.8°C	17.9°C
Sep	17.2°C	17.7°C	14.4°C	17.4°C	17.2°C
Oct	15.2°C	16.3°C	12.4°C	16.2°C	15.2°C
Nov	11.8°C	13.0°C	8.7°C	13.2°C	11.8°C
Dec	10.0°C	10.9°C	6.9°C	11.4°C	10.0°C
Average	10.4°C	13.9°C	13.1°C	13.9°C	13.1°C

Maximum/minimum temperature averages are computed by averaging the max/min temperature of each day for a given period.

Conditions #

Lisbon and Sintra stand out with higher sunshine hours, especially during the summer months, and lower precipitation compared to Porto, Aves, and Vila Nova de Gaia
Aves generally experiences the highest precipitation levels, particularly in the winter months, while also seeing comparable peak sun hours to Porto and Vila Nova de Gaia
Porto and Vila Nova de Gaia have nearly identical weather patterns, reflecting their close proximity, with moderate sun and precipitation.

Sunny Weather

Period	Porto	Lisbon	Aves	Sintra	Vila Nova de Gaia
Jan	4.4 hours/day	5.0 hours/day	4.3 hours/day	4.9 hours/day	4.4 hours/day
Feb	5.0 hours/day	5.6 hours/day	4.7 hours/day	5.6 hours/day	5.0 hours/day
Mar	5.2 hours/day	5.4 hours/day	4.9 hours/day	5.3 hours/day	5.2 hours/day
Apr	6.5 hours/day	7.0 hours/day	6.1 hours/day	7.0 hours/day	6.5 hours/day
May	8.1 hours/day	9.2 hours/day	7.8 hours/day	9.2 hours/day	8.1 hours/day
Jun	8.3 hours/day	10.3 hours/day	8.0 hours/day	10.1 hours/day	8.3 hours/day
Jul	11.6 hours/day	12.4 hours/day	11.7 hours/day	12.0 hours/day	11.6 hours/day
Aug	11.8 hours/day	12.5 hours/day	12.0 hours/day	12.0 hours/day	11.8 hours/day
Sep	8.4 hours/day	9.0 hours/day	8.0 hours/day	9.0 hours/day	8.4 hours/day
Oct	5.6 hours/day	6.8 hours/day	5.5 hours/day	6.8 hours/day	5.6 hours/day
Nov	4.2 hours/day	4.4 hours/day	4.0 hours/day	4.5 hours/day	4.2 hours/day
Dec	4.0 hours/day	4.5 hours/day	3.9 hours/day	4.5 hours/day	4.0 hours/day
Average	6.7 hours/day	7.7 hours/day	6.9 hours/day	7.6 hours/day	6.9 hours/day

Sun hours are computed from the number of hours of direct sunlight. The length of the day can affect these measurements; for example, northern cities have longer days in summer.

Precipitation Levels

Period	Porto	Lisbon	Aves	Sintra	Vila Nova de Gaia
Jan	5.1mm	1.7mm	6.4mm	1.9mm	5.1mm
Feb	3.4mm	1.6mm	4.1mm	1.6mm	3.4mm
Mar	5.4mm	3.0mm	6.2mm	3.1mm	5.4mm
Apr	4.2mm	1.9mm	4.7mm	2.1mm	4.2mm
May	2.4mm	0.8mm	3.0mm	0.9mm	2.4mm
Jun	2.1mm	0.4mm	2.4mm	0.4mm	2.1mm
Jul	0.5mm	0.1mm	0.6mm	0.1mm	0.5mm
Aug	0.4mm	0.0mm	0.5mm	0.0mm	0.4mm
Sep	1.8mm	1.0mm	2.4mm	1.1mm	1.8mm
Oct	6.5mm	1.8mm	8.1mm	2.1mm	6.5mm
Nov	5.9mm	2.2mm	7.2mm	2.6mm	5.9mm
Dec	6.7mm	2.2mm	8.3mm	2.5mm	6.7mm
Average	4.5mm	1.4mm	3.7mm	1.5mm	3.7mm

Average amount of precipitation that falls in a form of a rain, snow, sleet or hail.

Wind Speed

Period	Porto	Lisbon	Aves	Sintra	Vila Nova de Gaia
Jan	18.2km/h	19.5km/h	12.5km/h	23.8km/h	18.2km/h
Feb	17.5km/h	19.1km/h	12.3km/h	23.1km/h	17.5km/h
Mar	21.1km/h	23.0km/h	15.6km/h	26.8km/h	21.1km/h
Apr	18.9km/h	21.4km/h	14.4km/h	24.2km/h	19.0km/h
May	19.2km/h	22.5km/h	14.5km/h	25.0km/h	19.2km/h
Jun	18.8km/h	23.8km/h	14.4km/h	25.5km/h	18.8km/h
Jul	18.9km/h	24.5km/h	15.8km/h	26.3km/h	18.9km/h
Aug	19.2km/h	24.9km/h	16.1km/h	27.1km/h	19.2km/h
Sep	17.5km/h	21.4km/h	14.1km/h	23.1km/h	17.5km/h
Oct	19.0km/h	20.4km/h	13.8km/h	23.3km/h	19.0km/h
Nov	18.7km/h	19.9km/h	13.3km/h	24.0km/h	18.7km/h
Dec	19.0km/h	19.7km/h	13.0km/h	24.2km/h	19.0km/h
Average	14.2km/h	21.7km/h	18.8km/h	24.7km/h	18.8km/h

Humidity

Period	Porto	Lisbon	Aves	Sintra	Vila Nova de Gaia
Jan	72.6%	74.5%	79.0%	73.8%	72.6%
Feb	70.8%	72.5%	76.0%	73.3%	70.8%
Mar	71.8%	72.6%	75.7%	74.1%	71.8%
Apr	69.9%	69.9%	71.0%	73.9%	70.0%
May	68.4%	65.7%	67.1%	72.7%	68.4%
Jun	73.4%	68.5%	69.8%	76.4%	73.4%
Jul	70.4%	67.0%	61.2%	76.6%	70.4%
Aug	68.6%	66.4%	58.1%	76.5%	68.6%
Sep	67.0%	66.9%	62.7%	74.6%	67.0%
Oct	69.0%	68.1%	69.2%	73.5%	69.0%
Nov	72.7%	72.6%	78.5%	73.7%	72.7%
Dec	74.3%	75.1%	81.4%	74.8%	74.3%
Average	70.8%	70.0%	70.7%	74.5%	70.8%

Daylight Hours #

Aves has the earliest sunrise, while Lisbon and Sintra have the latest.
Lisbon and Sintra have the shortest day length, whereas Aves has the longest.
Sunset times differ slightly, with Lisbon and Sintra having the latest sunsets in December but the earliest sunsets in June.
The overall trends show that the cities near Porto (Porto, Aves, Vila Nova de Gaia) experience a more northern-like pattern (earlier sunrise for example) than Lisbon and Sintra.

Sunrise Time

Period	Porto	Lisbon	Aves	Sintra	Vila Nova de Gaia
Jan	7:56	7:52	7:56	7:53	7:56
Feb	7:29	7:28	7:28	7:28	7:29
Mar	6:50	6:52	6:49	6:53	6:50
Apr	6:55	7:00	6:53	7:01	6:55
May	6:16	6:25	6:14	6:25	6:16
Jun	6:02	6:12	6:00	6:13	6:02
Jul	6:16	6:25	6:14	6:26	6:16
Aug	6:45	6:51	6:43	6:52	6:45
Sep	7:16	7:19	7:14	7:20	7:16
Oct	7:42	7:42	7:41	7:43	7:42
Nov	7:23	7:19	7:22	7:20	7:23
Dec	7:52	7:47	7:52	7:49	7:52
Average	7:00	7:06	7:06	7:06	7:06

Sunrise times are output in the local timezone of each place.

Sunset Time

Period	Porto	Lisbon	Aves	Sintra	Vila Nova de Gaia
Jan	17:32	17:41	17:30	17:41	17:32
Feb	18:08	18:14	18:07	18:14	18:08
Mar	18:47	18:50	18:46	18:51	18:47
Apr	20:15	20:14	20:14	20:15	20:15
May	20:46	20:42	20:46	20:43	20:46
Jun	21:08	21:02	21:08	21:04	21:08
Jul	21:04	20:59	21:04	21:00	21:04
Aug	20:31	20:29	20:30	20:30	20:31
Sep	19:43	19:44	19:42	19:45	19:43
Oct	18:47	18:52	18:46	18:53	18:47
Nov	17:16	17:24	17:14	17:25	17:16
Dec	17:08	17:18	17:06	17:19	17:08
Average	19:12	19:18	19:18	19:18	19:18

Sunset times are output in the local timezone of each place.

Useful Day Length

Period	Porto	Lisbon	Aves	Sintra	Vila Nova de Gaia
Jan	9:37 hours	9:49 hours	9:34 hours	9:49 hours	9:37 hours
Feb	10:40 hours	10:46 hours	10:38 hours	10:46 hours	10:40 hours
Mar	11:47 hours	11:50 hours	11:46 hours	11:51 hours	11:47 hours
Apr	13:15 hours	13:14 hours	13:14 hours	13:14 hours	13:15 hours
May	13:46 hours	13:42 hours	13:46 hours	13:43 hours	13:46 hours
Jun	14:08 hours	14:02 hours	14:08 hours	14:04 hours	14:08 hours
Jul	14:04 hours	13:59 hours	14:04 hours	14:00 hours	14:04 hours
Aug	13:31 hours	13:29 hours	13:30 hours	13:30 hours	13:31 hours
Sep	12:28 hours	12:25 hours	12:28 hours	12:25 hours	12:28 hours
Oct	11:05 hours	11:10 hours	11:04 hours	11:10 hours	11:05 hours
Nov	9:53 hours	10:05 hours	9:52 hours	10:05 hours	9:53 hours
Dec	9:16 hours	9:31 hours	9:14 hours	9:30 hours	9:16 hours
Average	11:54 hours	12:00 hours	12:00 hours	12:00 hours	12:00 hours

Discards daylight hours before 7 AM. In places that are located to the west of the timezone, the sun rises and sets later compared to the cities that are located to the east. This means that the useful day length is longer in the cities located to the west of the time zone.

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