June
Other strong months: May and September
91/100 weather score
Portugal · 1991–2020
Best time to visit
Cacém
For Cacém, June has the most comfortable weather in our climate comparison. Typical daytime highs are 25.7°C, nights average 16.9°C, and rainfall totals about 13 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.
Best all-round monthJune
Typical daytime high25.7°C
Typical night-time low16.9°C
June rainfall13 mm
August
Other strong months: July and September
92/100 weather score
April
Other strong months: March and May
84/100 weather score
Make the answer personal
Choose the weather
that suits you.
Set the daytime temperature and rainfall you are comfortable with. We will show only the months that meet every choice, using the measured 1991–2020 averages below.
6 months fit your choices for Cacém
January has the lowest comfort score at 43 out of 100, compared with June at 91. The main reason is that days reach only 14.9°C, 9° below the 24°C the score treats as ideal.
Quick answers
Planning a trip to Cacém?
These answers come from the same measured monthly climate record shown on this page.
When is the best time to visit Cacém?
June is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 25.7°C and 13 mm of rain.
What is the hottest month in Cacém?
August is hottest in this record, with a typical daytime high of 28.3°C and a night-time low of 18.9°C.
Which month has the least rain?
July has the lowest monthly rainfall total at 2 mm.
Is this a weather forecast?
No. These are long-term measured averages from 1991–2020. Check a current forecast before you travel.
Month by month
See how the weather
changes through the year.
The bars combine daytime temperature, night-time temperature and rainfall. The figures are measured historical averages, not a forecast for a particular trip.
| Month | Day | Night | Rain | Wet days | Sea | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|---|
| January | 14.9°C | 8.7°C | 106 mm | 9.9 | 15.2°C | 9 h 44 | 43 | Strong coverage |
| February | 16.1°C | 9.2°C | 74 mm | 7.7 | 14.6°C | 10 h 41 | 54 | Strong coverage |
| March | 18.6°C | 11°C | 74 mm | 7.4 | 14.7°C | 11 h 50 | 66 | Strong coverage |
| April | 20.1°C | 12.3°C | 69 mm | 8.1 | 15.4°C | 13 h 09 | 73 | Strong coverage |
| May | 22.6°C | 14.5°C | 57 mm | 5.6 | 16.4°C | 14 h 16 | 89 | Strong coverage |
| June | 25.7°C | 16.9°C | 13 mm | 1.9 | 17.7°C | 14 h 52 | 91 | Strong coverage |
| July | 27.7°C | 18.3°C | 2 mm | 0.6 | 18.3°C | 14 h 38 | 82 | Strong coverage |
| August | 28.3°C | 18.9°C | 7 mm | 1.3 | 18.7°C | 13 h 40 | 79 | Strong coverage |
| September | 26.2°C | 17.7°C | 36 mm | 3.9 | 18.8°C | 12 h 23 | 87 | Strong coverage |
| October | 22.6°C | 15.4°C | 111 mm | 8.6 | 18.3°C | 11 h 07 | 79 | Strong coverage |
| November | 17.9°C | 11.9°C | 124 mm | 9.8 | 17.2°C | 10 h 00 | 56 | Strong coverage |
| December | 15.2°C | 9.6°C | 108 mm | 9.7 | 16.0°C | 9 h 28 | 45 | Strong coverage |
What has changed
Recent daytime highs are
0.8°C warmer in Cacém.
Each bar shows the difference between the 2011–2025 average daytime high and the 1961–1990 average for the same month at the same station. A blank month does not have enough older observations for a reliable comparison.
Jan
+0.6
Feb
+0.5
Mar
+0.3
Apr
+1.0
May
+2.0
Jun
+0.9
Jul
+0.4
Aug
+0.8
Sep
+0.6
Oct
+1.1
Nov
+0.2
Dec
+1.0
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 23.1°C1 Jan 1913 | 0.0°C5 Jan 1938 | 86 mm29 Jan 2004 | 368 mm1996 · driest 0 mm in 2005 | 121 |
| February | 25.4°C27 Feb 1960 | -0.9°C5 Feb 1954 | 102 mm18 Feb 2008 | 338 mm1947 · driest 0 mm in 2000 | 121 |
| March | 28.3°C21 Mar 1992 | 0.7°C1 Mar 2005 | 83 mm12 Mar 1969 | 267 mm2013 · driest 0 mm in 1966 | 120 |
| April | 32.2°C29 Apr 1997 | 4.3°C6 Apr 1911 | 57 mm17 Apr 2008 | 178 mm1966 · driest 0 mm in 2017 | 123 |
| May | 35.1°C9 May 1965 | 6.4°C3 May 1947 | 60 mm11 May 1993 | 156 mm1994 · driest 0 mm in 2006 | 123 |
| June | 41.5°C13 Jun 1981 | 9.5°C1 Jun 1902 | 40 mm14 Jun 2006 | 98 mm1970 · driest 0 mm in 1994 | 123 |
| July | 40.6°C17 Jul 1991 | 12.1°C12 Jul 1956 | 34 mm3 Jul 1988 | 43 mm1988 · driest 0 mm in 1993 | 123 |
| August | 42.0°C4 Aug 2018 | 11.2°C25 Aug 1918 | 31 mm31 Aug 2011 | 59 mm1976 · driest 0 mm in 1953 | 122 |
| September | 38.0°C5 Sep 2016 | 10.3°C3 Sep 1956 | 58 mm18 Sep 1999 | 132 mm1943 · driest 0 mm in 1955 | 122 |
| October | 34.4°C12 Oct 1955 | 6.7°C31 Oct 1935 | 93 mm18 Oct 1997 | 283 mm1965 · driest 1 mm in 1985 | 122 |
| November | 27.8°C2 Nov 1970 | 2.9°C25 Nov 1901 | 96 mm18 Nov 1983 | 376 mm1997 · driest 3 mm in 1981 | 120 |
| December | 23.2°C1 Dec 1985 | 0.0°C26 Dec 1926 | 91 mm6 Dec 2012 | 388 mm1989 · driest 14 mm in 1980 | 121 |
| Month | Days 25°C+ | Days 30°C+ | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 0 | 0 | 4 |
| February | 0 | 0 | 2 |
| March | 1 | 0 | 3 |
| April | 4 | 0 | 2 |
| May | 8 | 2 | 2 |
| June | 15 | 5 | <1 |
| July | 24 | 7 | 0 |
| August | 27 | 9 | <1 |
| September | 18 | 5 | 1 |
| October | 7 | <1 | 3 |
| November | 0 | 0 | 4 |
| December | 0 | 0 | 4 |
The best month has moved. On the 1961–1990 numbers the strongest month here was June (scoring 96); on 2011–2025 it is May (98). Both are scored the same way, from the same station — only the climate underneath changed.
| Month | Dry days reaching 20°C | Wet days | Days with heavy rain | Weeks with 3+ wet days | Typical high by year |
|---|---|---|---|---|---|
| January | <1% | 34% | 12% | 43% | 12.7–15.6°C |
| February | 4% | 33% | 11% | 40% | 13.7–17.4°C |
| March | 24% | 28% | 9% | 34% | 15.3–19.8°C |
| April | 40% | 26% | 7% | 31% | 17.2–21.3°C |
| May | 63% | 18% | 5% | 18% | 19.5–24.4°C |
| June | 89% | 8% | 2% | 5% | 22.7–27.1°C |
| July | 98% | 2% | <1% | <1% | 25.4–28.9°C |
| August | 96% | 4% | <1% | 2% | 26.1–29.7°C |
| September | 87% | 13% | 3% | 14% | 23.5–28.0°C |
| October | 64% | 26% | 9% | 35% | 19.6–24.2°C |
| November | 15% | 32% | 12% | 40% | 15.9–19.1°C |
| December | <1% | 33% | 13% | 42% | 13.1–16.1°C |
A dry day reaching 20°C records under 1 mm of rain. A wet day records at least 1 mm, while a heavy-rain day records at least 10 mm. The weekly figure is the share of seven-day periods containing three or more wet days. The final column shows the middle 80% of average daytime highs recorded for that month in individual years; a wider range means conditions have varied more from one year to another.
The evidence behind this page
Where these figures
come from.
- Place identity
- GeoNames 2270503
- NOAA station
- PO000008535 · LISBOA GEOFISICA
- Station distance
- 14 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 29 usable years
- Daylight
- Calculated from latitude 38.77°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- Sea temperature
- NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 17 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for Cacém is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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