Your July weather guide
HotWeather in Halkidiki in July
July suits a Halkidiki holiday built around swimming and taking things slowly in the heat. Average daytime highs are around 28°C, nights stay near 23°C and the sea reaches about 26°C. The main catch is that warm evenings offer limited relief after a hot day, so comfortable sleeping arrangements matter. Expect plenty of sunshine, but leave room for some rain rather than assuming every day will be dry.
Long-term climate averages for Nea Moudania, not a forecast · 1991-2020
Halkidiki, month by month
Your snapshot
At a glance
The useful details for Nea Moudania.
- Average daytime high
- 28.3°C
- 9 in 10 days stay below 31°C
- Average night-time low
- 23.0°C
- coldest 10% of nights: 21°C or lower
- Compared with London
- +6.5°C
- London averages 21.8°C in July
- Sea temperature
- 25.9°C
- year to year: 25°C to 27°C
- Sunshine per day (est.)
- 12.0h
- 82% of 14.6 h of daylight
- Rainy days (1 mm+)
- 5
- 36 mm over the month
- Humidity
- 65%
- Days over 25°C
- 95%
- 24% over 30°C
- Record high 1991-2020
- 41.4°C
- 2007-07-25
- Record low 1991-2020
- 16.4°C
- 1991-07-01
- Flight from London
- ≈ 3 h 30 min
- 2174 km, short-haul (estimate for a direct flight)
Records are observed extremes within 1991-2020, not typical holiday conditions. Warm-day percentages are shares of days, not day counts.
How July compares
July is the 2nd warmest month of the year in Halkidiki and ranks 76th of 134 destinations we compare for July - see where else is hot in July. Within Greece it is 22nd of 44 (Greece in July). Against London's average high of 21.8°C in July, Halkidiki is 6.5°C warmer by day and 9.5°C warmer at night.
Daytime and night-time in July
The typical July day in Halkidiki peaks at 28.3°C, but that is an average: the warmest 10% of days reach 30.9°C or more. About 95% of days top 25°C and 1 in 4 pass 30°C. Nights average 23.0°C; one night in ten drops to 20.9°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest July day here reached 41.4°C (2007-07-25) and the coldest night 16.4°C (1991-07-01).
Rain in July
Some rain (4-8 rainy days): about 5 days with 1 mm or more, 36 mm in total. Year to year it varies a lot - the wettest July was 2002 with 146 mm, the driest 2012 with 1 mm. Humidity averages 65%.
Sea temperature in July
The sea averages 25.9°C - warm enough to swim (22°c+). Depending on the year it ranges from 25.0°C to 26.6°C. For the warmest sea here, come in August (26.7°C).
Sunshine and daylight
Around 12.0 hours of sunshine a day (estimated from cloud cover), 14.6 hours of daylight: the sun rises about 06:10 and sets about 20:56 local time in mid-July. Average cloud cover is 18%.
Is July a good time to visit Halkidiki?
Yes - it is one of the better months: hot days, manageable rain and long sunny days. The best months for Halkidiki on our scoring are August, July, June; months averaging 25°C or more: Jun, Jul, Aug.
Plan around the heat, not just the average
Light clothing should be your starting point: 94% of July days reach 25°C, while 24% reach 30°C. That makes July a strong fit for travellers who want reliable warmth, but less comfortable if you prefer being active through the middle of the day. Put longer walks in the morning and keep midday plans flexible, with shade and drinking water close by. Humidity averages 65%, so do not assume the warmth will always feel dry. Nights remain warm enough that air conditioning is a sensible accommodation priority. Pack a light layer as a backup, rather than planning on needing substantial evening clothing.
Long sunny days, with some room for rain
About 12 hours of sunshine a day gives you plenty of scope to enjoy time outside without making midday your main window. Use the earlier and later parts of the day if strong sun makes you uncomfortable, and pack sunscreen, sunglasses and a hat. Rain is still part of the picture, with about 5 rainy days during July. That is a reason to keep outdoor plans movable, not to rule the month out. A light waterproof is a useful backup. The figures do not tell you when rain will fall or how long it will last, so avoid treating a rainy day as either a guaranteed washout or just a passing shower.
A little perspective
Halkidiki through the year
July is highlighted. See how it compares with the rest of the year.
| Month | Day | Night | Sea | Sun/day | Rain mm | Rainy days | Days 25°C+ |
|---|---|---|---|---|---|---|---|
| January | 10.1°C | 5.7°C | 14.1°C | 4.2 | 56 | 8 | 0% |
| February | 11.0°C | 6.3°C | 13.5°C | 4.7 | 52 | 8 | 0% |
| March | 13.2°C | 8.1°C | 13.5°C | 5.8 | 58 | 9 | 0% |
| April | 16.5°C | 11.2°C | 14.6°C | 6.9 | 45 | 7 | 1% |
| May | 21.3°C | 15.8°C | 18.6°C | 8.3 | 49 | 7 | 13% |
| Junebest | 25.9°C | 20.5°C | 23.2°C | 10.7 | 29 | 5 | 58% |
| JulySelectedbest | 28.3°C | 23.0°C | 25.9°C | 12.0 | 36 | 5 | 95% |
| Augustbest | 28.6°C | 23.4°C | 26.7°C | 11.3 | 32 | 4 | 94% |
| September | 24.5°C | 19.7°C | 24.5°C | 8.3 | 46 | 6 | 42% |
| October | 20.0°C | 15.5°C | 21.3°C | 5.4 | 56 | 8 | 5% |
| November | 15.4°C | 11.3°C | 18.0°C | 4.0 | 57 | 8 | 0% |
| December | 11.4°C | 7.4°C | 15.5°C | 3.7 | 79 | 9 | 0% |
Day = average daytime high, night = average night-time low, 1991-2020.Sun is hours per day; rainy days count 1 mm or more.
Day, night and sea
Monthly average temperatures, 1991-2020
- Day
- Night
- Sea
Best months here
On warmth, low rainfall and sunshine, start with these.
Keep exploring
Similar in July
Closest matches on daytime temperature, sea temperature and sunshine, in other countries.
A little more detail
Halkidiki in July FAQs
Plain answers, grounded in the averages.
Is Halkidiki hot in July?
Halkidiki is hot in July: the average daytime high is 28.3°C and nights average 23.0°C. About 95% of July days reach 25°C or more.
Can you swim in the sea in Halkidiki in July?
The sea around Halkidiki averages 25.9°C in July, which is warm enough for most people to swim comfortably. Between 1991 and 2020 it ranged from 25°C to 27°C depending on the year.
How much does it rain in Halkidiki in July?
Halkidiki sees about 5 rainy days (1 mm or more) and 36 mm of rain in a typical July. The wettest July between 1991 and 2020 was 2002 (146 mm) and the driest was 2012 (1 mm).
How sunny is Halkidiki in July?
Halkidiki gets around 12.0 hours of sunshine a day in July out of 14.6 hours of daylight (estimated from average cloud cover).
How does Halkidiki compare with the UK in July?
Halkidiki is on average 6.5°C warmer than London by day in July (28.3°C against 21.8°C).
What is the hottest July on record in Halkidiki?
Between 1991 and 2020 the hottest July day in Halkidiki reached 41.4°C on 2007-07-25, and the coldest night dropped to 16.4°C on 1991-07-01.
Is the sea warm enough for swimming in July?
Yes. The sea averages 25.9°C, with a year-to-year range of 25°C to 27°C. That puts July comfortably in swimming territory rather than bracing water. It suits travellers who want swimming to be a regular part of the holiday.
How much hotter is Halkidiki than London in July?
Halkidiki's average daytime high is 28.3°C, compared with 21.8°C in London, a difference of 6.5°C. That is a noticeable step up in warmth: plan for lighter clothing, more shade breaks and less energetic activity during the hottest part of the day.
About these averages
ERA5-Land climate reanalysis via Open-Meteo (11 km grid) and NOAA Coral Reef Watch 5 km sea temperatures, 1991-2020
Averages computed from daily values at Néa Moudhaniá (Nea Moudania). Sea temperature from the nearest 5 km sea cell, 3 km from that point. Sunshine hours are estimated from average cloud cover.Records are the highest and lowest daily values in that 30-year period, not all-time records. These are climate averages, not a forecast for your trip. How we measure holiday weather
- Hot · 25°C+
- Warm · 20°C to below 25°C
- Mild · 15°C to below 20°C
- Cool · below 15°C