Climate guide for Agistri, Greece

Best Time to Visit
Agistri

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01 · Greece

About Agistri

Agistri lies in the Saronic Gulf and is reached by ferry from Piraeus, often by way of Aegina. Pine forest covers much of the island, the coves are small and shallow, and Skala, the main port, holds the tavernas and the busiest swimming spots. Megalochori keeps a slower pace, and Aegina is a short hop away for the temple of Aphaia. May, June, September and early October give warm water without the August crowds, while winter is very quiet.

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Did you know?

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Travel Tips

01Best time & timing
Climate scores swing from 2.4/10 in December to 10.0/10 in June; the safest picks are June, July, August.
02Weather & what to pack
Expect around 27°C and 14 mm of rain in June, with roughly 30 bright days. Pack the lightest clothing you own, a hat and more water than feels necessary.
03Crowds & value
Peak-season pricing concentrates in June. For better value, May scores 8.6/10 at lower-season rates.

Things to do in Agistri

Agistri, Greece. Live activities and tours from GetYourGuide, matched to this destination.

When to visit Agistri: the short answer

The best time to visit Agistri is June, followed by July, August. Those months combine the most usable temperatures with the fewest lost days to rain: June averages 27°C with 14 mm of rain and about 30 days with 6+ hours of sunshine. The months to avoid unless you have a specific reason are December, January.

Across the year Agistri swings from 11°C in January to 29°C in July, a 19-degree spread, while rainfall ranges from 10 mm in July to 65 mm in January. That is the whole planning problem in one sentence: Agistri is not equally good year-round, and the difference between the best and worst month here is 7.6 points on a 10-point scale.

Warmest month: July (29°C). Coolest: January (11°C). Driest: July (10 mm). Wettest: January (65 mm).

Agistri month by month

January in Agistri — off-season conditions

Hardest · 2.6/10

January averages 11°C (51°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.

Rainfall runs 65 mm, so plan one flexible day in three; you still get about 1 days with 6+ hours of sunshine and 9.7 hours of daylight.

It scores 2.6/10 here, 11th of 12 months, against 10/10 in the destination's best month.

Figure on low-season pricing, with crowds are light for this destination.

Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.

Flexible dates? June scores 7.4 points higher here — enough to change the trip.

February in Agistri: expect compromises

Hardest · 3.9/10

February averages 11°C (52°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.

Expect 43 mm of rain — occasional showers rather than washed-out days — alongside about 7 days with 6+ hours of sunshine and 10.6 daylight hours.

It scores 3.9/10 here, 10th of 12 months, against 10/10 in the destination's best month.

Figure on low-season pricing, with crowds are light for this destination.

Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in.

Flexible dates? June scores 6.1 points higher here — enough to change the trip.

March in Agistri: mixed conditions, plan around the weather

Trade-offs · 5/10

Temperatures hover around 12°C (54°F) — the kind of month where neither heat nor cold forces the schedule.

Budget for roughly 61 mm of rain this month — a flexible day or two helps — with about 17 days with 6+ hours of sunshine and 11.7 hours of daylight to work around it.

That is 5/10 on the same scale — 8th of 12 months, versus 10/10 for the best month here.

Expect mid-season pricing, and crowds are light for this destination.

Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.

If your dates are flexible, June is materially better in Agistri — 5 points higher on the same scale.

April holds up well in Agistri — 7th best month

Good · 7.1/10

April averages 16°C (62°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Expect 18 mm of rain — occasional showers rather than washed-out days — alongside about 27 days with 6+ hours of sunshine and 13 daylight hours.

It scores 7.1/10 here, 7th of 12 months, against 10/10 in the destination's best month.

Plan for mid-season pricing, with crowds are moderate.

Pack layers you can shed by midday plus one warm layer for the evening.

Flexible dates? June scores 2.9 points higher here — enough to change the trip.

May in Agistri — one of the year's strongest windows (5th)

Best window · 8.6/10

With 20°C (68°F) on average, May delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.

With around 23 mm of rain, any showers tend to pass through rather than settle in; about 31 days with 6+ hours of sunshine and 14 hours of daylight fill the rest.

On our climate-comfort scale this is one of the strongest months of the year for Agistri at 8.6/10 (5th of 12), just behind June at 10/10.

Budget for mid-season pricing, and crowds are moderate.

Pack light clothing, swimwear and real sun protection.

June: the best month of the year in Agistri

Best window · 10/10

June averages 27°C (80°F), so the practical pattern is early mornings, a long midday break, and evenings back outside.

Rain is a non-issue at 14 mm for the month, with about 30 days with 6+ hours of sunshine and 14.6 hours of daylight to work with.

On our climate-comfort scale this is the top-ranked month of the year for Agistri at 10/10 — the reference point every other month on this page is measured against.

Plan for peak pricing, with crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.

July is one of the strongest months in Agistri (2nd)

Best window · 10/10

July averages 29°C (85°F), so the practical pattern is early mornings, a long midday break, and evenings back outside.

Rain is a non-issue at 10 mm for the month, with about 31 days with 6+ hours of sunshine and 14.4 hours of daylight to work with.

A 10/10 puts this among the year's best months in Agistri (2nd of 12); only June scores higher, at 10/10.

Figure on peak pricing, with this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.

August is one of the strongest months in Agistri (3rd)

Best window · 10/10

Days in August average 29°C (84°F) — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

With around 15 mm of rain, any showers tend to pass through rather than settle in; about 31 days with 6+ hours of sunshine and 13.5 hours of daylight fill the rest.

On our climate-comfort scale this is one of the strongest months of the year for Agistri at 10/10 (3rd of 12), just behind June at 10/10.

Budget for peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.

September is one of the strongest months in Agistri (4th)

Best window · 9.8/10

With 25°C (77°F) on average, September delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.

With around 39 mm of rain, any showers tend to pass through rather than settle in; about 22 days with 6+ hours of sunshine and 12.2 hours of daylight fill the rest.

On our climate-comfort scale this is one of the strongest months of the year for Agistri at 9.8/10 (4th of 12), just behind June at 10/10.

Expect peak pricing, and crowds are moderate.

Pack light clothing, swimwear and real sun protection.

October holds up well in Agistri — 6th best month

Good · 8/10

October averages 21°C (70°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.

Expect 15 mm of rain — occasional showers rather than washed-out days — alongside about 14 days with 6+ hours of sunshine and 11 daylight hours.

It scores 8/10 here, 6th of 12 months, against 10/10 in the destination's best month.

Plan for mid-season pricing, with crowds are moderate.

Pack light clothing, swimwear and real sun protection.

Flexible dates? June scores 2 points higher here — enough to change the trip.

November in Agistri: expect compromises

Hardest · 4/10

November averages 17°C (63°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Rainfall runs 63 mm, so plan one flexible day in three; you still get about 4 days with 6+ hours of sunshine and 9.9 hours of daylight.

It scores 4/10 here, 9th of 12 months, against 10/10 in the destination's best month.

Figure on low-season pricing, with crowds are light for this destination.

Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.

Flexible dates? June scores 6 points higher here — enough to change the trip.

December in Agistri: expect compromises

Hardest · 2.4/10

Temperatures hover around 14°C (57°F) — the kind of month where neither heat nor cold forces the schedule.

Budget for roughly 64 mm of rain this month — a flexible day or two helps — with almost no days with 6+ hours of sunshine and 9.4 hours of daylight to work around it.

That is 2.4/10 on the same scale — 12th of 12 months, versus 10/10 for the best month here.

Expect low-season pricing, and crowds are light for this destination.

Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.

If your dates are flexible, June is materially better in Agistri — 7.6 points higher on the same scale.

FAQ

Frequently asked

When is the best time to visit Agistri, Greece?
In Ideal Weather mode, the best months to visit Agistri are June, July, August, September. June is the single peak month with an Ideal Weather score of 10.0/10 based on temperature, rainfall, humidity, daylight and days with 6+ hours of sunshine.
What is the weather like in Agistri year-round?
Agistri has a climate profile suited to beach and coastal travel. Average monthly temperatures range from 11°C in January to 29°C in July, with Ideal Weather scores between 2.4 and 10.0 out of 10.
Which months should I avoid in Agistri?
The lowest Ideal Weather-scoring months in Agistri are December (2.4/10), January (2.6/10), February (3.9/10). These months typically combine less comfortable temperatures, higher rainfall or fewer days with 6+ hours of sunshine.
When is the rainy season in Agistri?
January is the wettest month in Agistri, averaging about 65 mm of rainfall. July is the driest, at roughly 10 mm.
Which is the sunniest month in Agistri?
May sees the most sun in Agistri, with about 31 days with 6+ hours of sunshine on average - ideal for outdoor plans.
Is Agistri a good destination for beach and coastal travel?
Agistri is well suited to beach and coastal travel. Its highest Ideal Weather window (June, July, August, September) aligns with the conditions travelers usually look for in this style of trip.
How is the bestime.to score for Agistri calculated?
Each month receives an Ideal Weather score from 0-10 using ERA5 climate normals for Agistri: temperature comfort, precipitation, humidity, daylight hours, and days with 6+ hours of sunshine - weighted for beach and coastal travel.

Climate data: Open-Meteo ERA5 historical archive, the five most recent complete years (2021–2025). Scores are monthly averages for that window, not forecasts, and short-window precipitation can differ from longer-term normals. “Sunny days” count days with at least 6 hours of measured sunshine — they are not dry days.

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