Istria Climate: Sunshine Hours, Temperature & Best Time to Visit

Istria climate month by month: sunshine hours, temperature, rain and day length from weather station data 1991–2020. Best time to visit: June, July, August. Sunniest month: July.

  • 2,417 hours of sunshine a year – 1.4 times as much as London. Warmest is August at 30 °C by day.
  • Best time to visit: June, July, August

Sunshine and temperature in Istria month by month

  • January: 2.5 h Sun/day (78 h), Daytime high 11 °C, Night 0 °C, Rain 78 mm, Holiday score 17
  • February: 4.0 h Sun/day (114 h), Daytime high 12 °C, Night 1 °C, Rain 94 mm, Holiday score 22
  • March: 6.1 h Sun/day (188 h), Daytime high 15 °C, Night 3 °C, Rain 74 mm, Holiday score 34
  • April: 7.7 h Sun/day (231 h), Daytime high 18 °C, Night 7 °C, Rain 67 mm, Holiday score 53
  • May: 9.1 h Sun/day (282 h), Daytime high 22 °C, Night 12 °C, Rain 84 mm, Holiday score 73
  • June: 10.7 h Sun/day (322 h), Daytime high 27 °C, Night 16 °C, Rain 64 mm, Holiday score 93
  • July: 11.4 h Sun/day (354 h), Daytime high 29 °C, Night 19 °C, Rain 49 mm, Holiday score 95
  • August: 9.9 h Sun/day (308 h), Daytime high 30 °C, Night 19 °C, Rain 71 mm, Holiday score 89
  • September: 7.6 h Sun/day (228 h), Daytime high 25 °C, Night 15 °C, Rain 113 mm, Holiday score 75
  • October: 5.1 h Sun/day (159 h), Daytime high 21 °C, Night 10 °C, Rain 101 mm, Holiday score 50
  • November: 2.6 h Sun/day (78 h), Daytime high 16 °C, Night 6 °C, Rain 133 mm, Holiday score 17
  • December: 2.4 h Sun/day (75 h), Daytime high 12 °C, Night 2 °C, Rain 102 mm, Holiday score 15
  • Temperature: NASA POWER model value (grid, ±2–3 °C) · Sunshine: estimated from NASA satellite data (±15 %) · Rain: NASA POWER model value (grid, ±2–3 °C). Averages 1991–2020, source: Deutscher Wetterdienst (CLIMAT station data, CC BY 4.0) and NASA POWER; single years differ.

Questions

  • When is the best time to visit Istria? By sunshine, warmth and rain the best months are June, July, August. Sunniest is July with 354 hours of sunshine, warmest August at 30 °C.
  • How many hours of sunshine does Istria get a year? About 2,417 hours – 1.4 times as many as London (1,675 hours).
  • When does it rain most in Istria? In November, with 133 mm on average. The driest month is July.
  • How warm is Istria in January and July? In January the average daytime high is 11 °C, in July 29 °C.