Greece · 1991–2020

Best time to visit
Kallithéa

For Kallithéa, October has the most comfortable weather in our climate comparison. Typical daytime highs are 23.9°C, nights average 16.1°C, and rainfall totals about 33 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.

Best all-round monthOctober
Typical daytime high23.9°C
Typical night-time low16.1°C
October rainfall33 mm
Overall comfort

October

Other strong months: May and April

98/100 weather score
Beach weather

September

Other strong months: June and July

97/100 weather score
Outdoor sightseeing

April

Other strong months: November and March

96/100 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.

4 months fit your choices for Kallithéa

April20.2°C day · 25 mm rain · 3.4 wet days
May25.1°C day · 15 mm rain · 2.3 wet days
October23.9°C day · 33 mm rain · 3.1 wet days
November18.8°C day · 62 mm rain · 5.1 wet days

January has the lowest comfort score at 46 out of 100, compared with October at 98. The main reason is that days reach only 13.5°C, 10° below the 24°C the score treats as ideal.

Quick answers

Planning a trip to Kallithéa?

These answers come from the same measured monthly climate record shown on this page.

When is the best time to visit Kallithéa?

October is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 23.9°C and 33 mm of rain.

What is the hottest month in Kallithéa?

August is hottest in this record, with a typical daytime high of 33.3°C and a night-time low of 23.7°C.

Which month has the least rain?

August has the lowest monthly rainfall total at 3 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.

Jan
4613.5° / 6.7°
Feb
5114.2° / 6.9°
Mar
6216.5° / 8.7°
Apr
8120.2° / 11.6°
May
9425.1° / 16°
Jun
7030.1° / 20.7°
Jul
5533.1° / 23.4°
Aug
5333.3° / 23.7°
Sep
7528.9° / 20°
Oct
9823.9° / 16.1°
Nov
7218.8° / 11.9°
Dec
5114.8° / 8.6°
Monthly climate evidence for Kallithéa — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 11 km away
MonthDayNightRainWet daysSeaDaylightComfortCoverage
January13.5°C6.7°C48 mm5.515.2°C9 h 4846Strong coverage
February14.2°C6.9°C36 mm4.914.5°C10 h 4351Strong coverage
March16.5°C8.7°C42 mm4.314.7°C11 h 5062Strong coverage
April20.2°C11.6°C25 mm3.415.9°C13 h 0781Strong coverage
May25.1°C16°C15 mm2.318.6°C14 h 1294Strong coverage
June30.1°C20.7°C9 mm1.322.3°C14 h 4770Strong coverage
July33.1°C23.4°C6 mm0.525.1°C14 h 3355Strong coverage
August33.3°C23.7°C3 mm0.525.9°C13 h 3853Strong coverage
September28.9°C20°C17 mm2.125.0°C12 h 2375Strong coverage
October23.9°C16.1°C33 mm3.122.8°C11 h 0998Strong coverage
November18.8°C11.9°C62 mm5.120.1°C10 h 0472Strong coverage
December14.8°C8.6°C62 mm6.317.3°C9 h 3351Strong coverage

What has changed

Recent daytime highs are
2.0°C warmer in Kallithéa.

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
+1.0
Feb
+1.7
Mar
+1.8
Apr
+2.5
May
+2.4
Jun
+2.8
Jul
+2.8
Aug
+3.0
Sep
+2.0
Oct
+1.6
Nov
+1.2
Dec
+0.9
October daytime highs, 2011–2024. Last recorded: 26.6°C.
Records at HELLINIKON, 1955–2025
MonthRecord highRecord lowWettest dayWettest / driest monthYears
January22.4°C9 Jan 2021-2.9°C14 Jan 196882 mm17 Jan 1985147 mm2019 · driest 0 mm in 200769
February24.2°C16 Feb 2016-4.2°C18 Feb 200883 mm4 Feb 2011129 mm1988 · driest 0 mm in 195769
March27.0°C26 Mar 2001-1.8°C10 Mar 2011142 mm26 Mar 1998205 mm1998 · driest 1 mm in 199069
April30.9°C25 Apr 20180.6°C9 Apr 200392 mm1 Apr 1987113 mm1984 · driest 0 mm in 200569
May35.6°C29 May 20088.0°C4 May 197040 mm7 May 199471 mm1963 · driest 0 mm in 199069
June39.8°C27 Jun 202511.5°C2 Jun 199023 mm19 Jun 201939 mm2017 · driest 0 mm in 197268
July42.0°C7 Jul 198815.5°C10 Jul 198446 mm3 Jul 198361 mm1999 · driest 0 mm in 199668
August43.0°C3 Aug 202116.0°C25 Aug 197270 mm25 Aug 197273 mm1972 · driest 0 mm in 195668
September37.6°C1 Sep 195610.4°C30 Sep 197083 mm7 Sep 2023101 mm2023 · driest 0 mm in 202167
October33.8°C1 Oct 19915.4°C18 Oct 201181 mm28 Oct 1978231 mm1955 · driest 0 mm in 199367
November28.6°C4 Nov 20231.4°C26 Nov 197697 mm5 Nov 2001203 mm1993 · driest 0 mm in 201167
December22.8°C1 Dec 2023-1.8°C20 Dec 200180 mm7 Dec 1991172 mm2014 · driest 0 mm in 201568
Typical days per month at HELLINIKON, 1991–2020
MonthDays 25°C+Days 30°C+Frost nightsHeavy rain (10 mm+)
January00<11
February00<11
March<10<11
April2<10<1
May1520<1
June27140<1
July29260<1
August29280<1
September25100<1
October12<101
November<1002
December00<12

The best month has moved. On the 1961–1990 numbers the strongest month here was May (scoring 98); on 2011–2025 it is October (96). Both are scored the same way, from the same station — only the climate underneath changed.

How often different weather occurs at HELLINIKON, based on its daily record
MonthDry days reaching 20°CWet daysDays with heavy rainWeeks with 3+ wet daysTypical high by year
January1%19%4%18%11.7–15.2°C
February3%18%4%15%12.0–16.9°C
March10%16%4%12%14.4–18.1°C
April48%12%2%8%18.1–21.5°C
May89%7%1%2%22.8–26.6°C
June96%4%<1%<1%28.0–31.4°C
July98%2%<1%<1%30.7–34.0°C
August98%2%<1%<1%30.5–34.3°C
September94%6%2%4%27.1–30.3°C
October77%12%5%10%21.6–25.7°C
November37%18%6%17%17.1–21.2°C
December5%21%7%20%13.4–17.1°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.

1955Each stripe is one year’s mean temperature against the 61-year average. Warmest: 2024. Coolest: 1983.2024

The evidence behind this page

Where these figures
come from.

Place identity
GeoNames 261414
NOAA station
GR000016716 · HELLINIKON
Station distance
7.1 km from the place centre
Climate period
1991–2020
Minimum month coverage
25 usable years
Daylight
Calculated from latitude 37.95°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature
NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 11 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 Kallithéa 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.

How travel partnerships will work

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These places read the same station, so their climate numbers are identical. Their setting, population and distance from HELLINIKON are not.