Greece
Thessaloniki in July: weather, sea & travel advice
This month's data profile
Sea conditions lead
Thessaloniki in July is climatically well suited to beach holidays and family holidays. The average daily high is around 33 °C, and the sea is about 26 °C. With about 5 rainy days it is dry.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
75/100 · #5
Warmth
#1
Dryness
#2
Sun
#1
Sea warmth
#2
Published best categories: Beach, Family
Thessaloniki · JulyPhoto: Ωριγένης · CC BY-SA 3.0Climate facts
- Average high
- 33 °C
- Average low
- 21 °C
- Sea
- 26 °C
- Rainy days (est.)
- 5 rainy days (est.)
- Sun (est.)
- 9 h/day
- Humidity
- 48 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| June | 30 | 18 | 7 | 34 | 8.7 | 56 | 1.8 | 23 | 82 |
| July (selected) | 33 | 21 | 5 | 24 | 8.8 | 48 | 1.8 | 26 | 75 |
| August | 33 | 21 | 4 | 22 | 7.8 | 49 | 1.8 | 27 | 75 |
How do the previous and next months compare?
Baseline: July (75/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| June | +7 | -3.1 °C | -2.8 °C | +1.9 | +9.5 mm | -0.1 h | +7.5 % | ±0 m/s | -2.6 °C |
| August | ±0 | -0.2 °C | +0.1 °C | -0.6 | -2.7 mm | -1 h | +1.4 % | -0.1 m/s | +0.9 °C |
All twelve months in context

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Where to stay in Thessaloniki
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Frequently asked questions
How warm is Thessaloniki in July?
The average daily high is around 33 °C, with an average daily low of about 21 °C.
Can you swim in Thessaloniki in July?
The sea is about 26 °C (warm).
Does it rain a lot in Thessaloniki in July?
The curated estimate is about 5 rainy days per month, not a directly measured long-term average. Total precipitation averages around 24 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Thessaloniki?
By the climate score, May, June, September and October are the strongest months for Thessaloniki. For a beach trip: June, July, August and September. July is not among them.