Croatia
Istria in March: weather, sea & travel advice
This month's data profile
Clear transition month
Istria in March is climatically mixed. The average daily high is around 12 °C, and the sea is about 11 °C. With about 9 rainy days it is moderate.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
41/100 · #8
Warmth
#9
Dryness
#2
Sun
#7
Sea warmth
#11
Published best categories: none
Istria · MarchPhoto: Einaz80 · CC BY-SA 4.0Climate facts
- Average high
- 12 °C
- Average low
- 6 °C
- Sea
- 11 °C
- Rainy days (est.)
- 9 rainy days (est.)
- Sun (est.)
- 4 h/day
- Humidity
- 77 %
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 |
|---|---|---|---|---|---|---|---|---|---|
| February | 9 | 4 | 8 | 76 | 2.8 | 79 | 3.8 | 11 | 35 |
| March (selected) | 12 | 6 | 9 | 69 | 4.4 | 77 | 3.4 | 11 | 41 |
| April | 15 | 10 | 11 | 73 | 5.9 | 76 | 3.0 | 13 | 48 |
How do the previous and next months compare?
Baseline: March (41/100)
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 | |
|---|---|---|---|---|---|---|---|---|---|
| February | -6 | -3 °C | -2.3 °C | -0.4 | +6.6 mm | -1.6 h | +2.2 % | +0.3 m/s | -0.2 °C |
| April | +7 | +3.5 °C | +3.3 °C | +1.9 | +3.1 mm | +1.5 h | -1.4 % | -0.4 m/s | +2 °C |
All twelve months in context
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Where to stay in Istria
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Frequently asked questions
How warm is Istria in March?
The average daily high is around 12 °C, with an average daily low of about 6 °C.
Can you swim in Istria in March?
The sea is about 11 °C (cold).
Does it rain a lot in Istria in March?
The curated estimate is about 9 rainy days per month, not a directly measured long-term average. Total precipitation averages around 69 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Istria?
By the climate score, June, July, August and September are the strongest months for Istria. For a beach trip: June, July, August and September. March is not among them.