Best time to visit Cluj-Napoca
Re-score for me — drag the dial — every chart on the page recolours live for your heat limit 27°C
Default 27 °C is the upper edge of the Holiday Climate Index "ideal comfort" band (Scott, Rutty, Amelung & Tang, 2016). Above this, most warm-tourism travellers report measurable discomfort.
How is this scored? HCI / Steadman / CCI gate — full methodology and citations below.
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Add as many as you like — stacked below the main strips above. Each row is just the recent-window score strip and (for beach destinations) sea-temperature strip.
Tours in Cluj-Napoca
6 top-rated tours via Viator. Booking links earn this site a commission at no cost to you. Map locations are approximate (centred on Cluj-Napoca).
- 1
Clasic Tour of Cluj Napoca - 2
Night Tour in Hoia Baciu Forest - 3
Private Full Day Green Tour - 4
Private Day Trip to Turda Salt Mine and Alba Carolina Fortress - 5
Turda Gorge, salt mine and Rimetea village private tour - 6
Cluj Must-See Attractions Walking Tour With A Guide
Last refreshed 2026-06-28.
Similar climatesSighișoara96% · Sibiu96% · Eger94%
Other destinations with the most-alike year-round climate to Cluj-Napoca (apparent temperature, rain hours, sunshine — matched within the same trip-profile). The ±N chip compares each match's typical score for the current month against Cluj-Napoca's. Based on the 2020-2024 climatology, not this year's actual weather.
Month-by-month
| Month | Temp °C | Feels °C | Rain days | Rain h | Rain h/day | Humidity | Wind km/h | Sun h | UV | Interest | Score |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | -3–4 | 0 | 10 | 115 | 11.5 | 76% | 14 | 118 | 1 | Quiet | 4 |
| Feb | -1–7 | 4 | 8 | 103 | 12.9 | 70% | 16 | 137 | 2 | Quiet | 5 |
| Mar | 0–10 | 7 | 8 | 114 | 14.3 | 58% | 15 | 193 | 3 | Quiet | 6 |
| Apr | 4–15 | 12 | 10 | 135 | 13.5 | 55% | 15 | 224 | 4 | Quiet | 7 |
| May | 9–20 | 18 | 13 | 124 | 9.5 | 56% | 15 | 268 | 5 | Quiet | 8 |
| Jun | 15–25 | 25 | 15 | 145 | 9.7 | 58% | 14 | 286 | 6 | Quiet | 8 |
| Jul | 17–27 | 28 | 11 | 109 | 9.9 | 55% | 14 | 304 | 6 | Quiet | 8 |
| Aug | 16–27 | 28 | 10 | 83 | 8.3 | 53% | 13 | 274 | 6 | Peak | 9 |
| Sep | 12–22 | 22 | 10 | 117 | 11.7 | 59% | 13 | 221 | 4 | Peak | 8 |
| Oct | 6–16 | 15 | 6 | 67 | 11.2 | 67% | 12 | 193 | 2 | Moderate | 8 |
| Nov | 1–8 | 6 | 9 | 94 | 10.4 | 79% | 12 | 114 | 1 | Peak | 5 |
| Dec | -1–5 | 2 | 11 | 131 | 11.9 | 83% | 13 | 93 | 1 | Moderate | 4 |
UV Index in Cluj-Napoca by Month
UV index in Cluj-Napoca peaks at 6 (high) in July, dropping to 1 (low) in December. June, July, August have high UV — SPF 30+ and sunglasses recommended.
Best months in detail
August
9/1016–27°C · 10 rain days (83h) · 274 sun hours · 53% humidity · Peak crowd · UV 6 (high)
September
8/1012–22°C · 10 rain days (117h) · 221 sun hours · 59% humidity · Peak crowd · UV 4 (moderate) · sunniest 1 in 10 days reach 6 (moderate)
July
8/1017–27°C · 11 rain days (109h) · 304 sun hours · 55% humidity · Quiet crowd · UV 6 (high) · sunniest 1 in 10 days reach 8 (very high)
Every month
Show the other 9 months in detail
January
4/10-3–4°C (feels 0°C) · 10 rain days (115h) · 118 sun hours · 76% humidity · Quiet crowd · UV 1 (low)
February
5/10-1–7°C (feels 4°C) · 8 rain days (103h) · 137 sun hours · 70% humidity · Quiet crowd · UV 2 (low)
March
6/100–10°C (feels 7°C) · 8 rain days (114h) · 193 sun hours · 58% humidity · Quiet crowd · UV 3 (low) · sunniest 1 in 10 days reach 4 (moderate)
April
7/104–15°C (feels 12°C) · 10 rain days (135h) · 224 sun hours · 55% humidity · Quiet crowd · UV 4 (moderate) · sunniest 1 in 10 days reach 5 (moderate)
May
8/109–20°C (feels 18°C) · 13 rain days (124h) · 268 sun hours · 56% humidity · Quiet crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 7 (high)
June
8/1015–25°C · 15 rain days (145h) · 286 sun hours · 58% humidity · Quiet crowd · UV 6 (high) · sunniest 1 in 10 days reach 8 (high)
October
8/106–16°C (feels 15°C) · 6 rain days (67h) · 193 sun hours · 67% humidity · Moderate crowd · UV 2 (low) · sunniest 1 in 10 days reach 4 (moderate)
November
5/101–8°C (feels 6°C) · 9 rain days (94h) · 114 sun hours · 79% humidity · Peak crowd · UV 1 (low)
December
4/10-1–5°C (feels 2°C) · 11 rain days (131h) · 93 sun hours · 83% humidity · Moderate crowd · UV 1 (low)
Frequently asked questions about visiting Cluj-Napoca
When is the best time to visit Cluj-Napoca?
August is the highest-scoring month (9/10 on the Holiday Climate Index). Typical conditions: 16–27°C (10 rainy days). The top three months by score are August, September, July.
What is the worst time to visit Cluj-Napoca?
December is the lowest-scoring month (4/10). Typical conditions: -1–5°C (11 rainy days).
When are crowds lowest in Cluj-Napoca?
Search-interest seasonality (Google Trends 2021-2025) is lowest in January and peaks in November. Interest tracks both in-trip visitors and lead-time planners, so treat it as a "destination is on people's minds" signal rather than literal arrivals.
Which months in Cluj-Napoca have good weather but fewer tourists?
May (climate 8/10, crowd index 0) and June (climate 8/10, crowd index 0) — shoulder months with above-average climate and below-median search-interest. Often the best value-for-weather trade.
What is the UV index in Cluj-Napoca by month?
UV peaks at 6 (high) in July and is lowest in December at 1 (low). Monthly peak values: Jan 1, Feb 2, Mar 3, Apr 4, May 5, Jun 6, Jul 6, Aug 6, Sep 4, Oct 2, Nov 1, Dec 1.
What is the UV index in Cluj-Napoca in July?
July is the peak UV month in Cluj-Napoca, with a daily-peak UV index of 6 (high). Apply SPF 30+, wear sunglasses, and seek shade during midday hours.
How high can UV get in Cluj-Napoca on the sunniest days?
Most days look like the monthly average, but on the sunniest ~1 in 10 days UV climbs higher than the mean suggests. July is the worst case: typical days average UV 6 (high), but the top 10% of days reach UV 8 (very high) — and even higher. Months where the sunniest days routinely exceed the typical reading: March, April, May, June, July, September, October. Plan sun protection for the worst case, not the average.
Is air quality in Cluj-Napoca bad for travelers?
PM2.5 (fine-particle pollution) exceeds the WHO sensitive-group guideline (15 µg/m³) in 7 months: January, February, March, April, October, November, December. The worst month is January with a typical-day mean of 25 µg/m³ (unhealthy for sensitive); on the worst 10% of days PM2.5 reaches 41 µg/m³ (hazardous) and higher. People with asthma, heart conditions, or sensitive children may want to avoid these months or limit outdoor activity. Source: CAMS via Open-Meteo.