Best time to visit Coimbra

Re-score for me — drag the dial — every chart on the page recolours live for your heat limit 27°C
I'm comfortable up to 27°C feels-like
22° heat-averse 30° heat-loving

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.

Saved to this browser. Changes update the strips below.
Recent · 2020-2024
Interest Google Trends 2021-2025 searches, not arrivals (?)
Day · avg daily high (?)
Night · avg overnight low (?)
UV index · On a typical day around midday, UV is about this (?)
124567885321
On the sunniest 1 in 10 days, UV reaches this — and even higher
36889975
PM2.5 air quality · on a typical day (?)
1112109810810891011
On the worst 1 in 10 days, PM2.5 reaches this — and even higher
182017141315131512161717
June 9/10 feels 25°C · HCI 86/100
Day 25° · Night 14° · cools 11° at night 58% humidity 19 km/h wind 9 rain days (107h) 275h sun
Thermal 9
Sky 9
Rain 7
Wind 10

Higher = better, including rain & wind (green = "doesn't hurt the score", not "lots of it").

How is this scored? HCI / Steadman / CCI gate — full methodology and citations below.

Compare with another destination

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 Coimbra

6 top-rated tours via Viator. Booking links earn this site a commission at no cost to you. Map locations are approximate (centred on Coimbra).

  1. 1University of Coimbra guided tours without queue4.94★ (556)1h 30mfrom $64🔥 Selling fast
  2. 2The Magnetism of Fatima4.96★ (26)4hfrom $173🔥 Selling fast
  3. 3Exclusive Coimbra - Private Tours5.00★ (2)2h 30mfrom $140🔥 Selling fast
  4. 4Private Jeep Tour Serra da Lousã and Schist Villages5.00★ (8)from $256🔥 Selling fast
  5. 5Coimbra Scavenger Hunt and Sights Self-Guided Tour4.95★ (21)2hfrom $4
  6. 6TOP Coimbra : Private Guided Tour with your mobile5.00★ (1)from $6

Last refreshed 2026-06-20.

Similar climatesAveiro93% · Sintra92% · Porto92%

Other destinations with the most-alike year-round climate to Coimbra (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 Coimbra'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 6–14 12 10 149 14.9 72% 18 160 1 Quiet 6
Feb 8–17 15 9 130 14.4 67% 18 170 2 Quiet 7
Mar 8–18 16 12 179 14.9 63% 20 206 4 Quiet 6
Apr 10–20 19 13 175 13.5 61% 19 233 5 Quiet 7
May 12–23 22 10 123 12.3 56% 20 268 6 Quiet 8
Jun 14–25 25 9 107 11.9 58% 19 275 7 Quiet 9
Jul 16–30 30 1 16 16.0 48% 19 305 8 Quiet 8
Aug 16–29 30 1 17 17.0 50% 20 278 8 Peak 8
Sep 15–26 26 9 114 12.7 56% 19 232 5 Busy 9
Oct 14–23 22 14 190 13.6 65% 19 185 3 Moderate 7
Nov 10–18 17 12 162 13.5 73% 18 158 2 Peak 6
Dec 8–15 13 14 184 13.1 76% 19 149 1 Moderate 5

UV Index in Coimbra by Month

UV index in Coimbra peaks at 8 (very high) in July, dropping to 1 (low) in January. July reach very high or extreme levels — apply SPF 50+, wear a hat and protective clothing, and limit direct sun between 11:00 and 17:00.

Best months in detail

June

9/10

14–25°C · 9 rain days (107h) · 275 sun hours · 58% humidity · Quiet crowd · UV 7 (high) · sunniest 1 in 10 days reach 9 (very high)

September

9/10

15–26°C · 9 rain days (114h) · 232 sun hours · 56% humidity · Busy crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 7 (high)

May

8/10

12–23°C (feels 22°C) · 10 rain days (123h) · 268 sun hours · 56% 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

6/10

6–14°C (feels 12°C) · 10 rain days (149h) · 160 sun hours · 72% humidity · Quiet crowd · UV 1 (low)

February

7/10

8–17°C (feels 15°C) · 9 rain days (130h) · 170 sun hours · 67% humidity · Quiet crowd · UV 2 (low) · sunniest 1 in 10 days reach 3 (moderate)

March

6/10

8–18°C (feels 16°C) · 12 rain days (179h) · 206 sun hours · 63% humidity · Quiet crowd · UV 4 (moderate) · sunniest 1 in 10 days reach 6 (high)

April

7/10

10–20°C (feels 19°C) · 13 rain days (175h) · 233 sun hours · 61% humidity · Quiet crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 8 (high)

July

8/10

16–30°C · 1 rain days (16h) · 305 sun hours · 48% humidity · Quiet crowd · UV 8 (very high)

August

8/10

16–29°C · 1 rain days (17h) · 278 sun hours · 50% humidity · Peak crowd · UV 8 (high) · sunniest 1 in 10 days reach 9 (very high)

October

7/10

14–23°C · 14 rain days (190h) · 185 sun hours · 65% humidity · Moderate crowd · UV 3 (moderate) · sunniest 1 in 10 days reach 5 (moderate)

November

6/10

10–18°C (feels 17°C) · 12 rain days (162h) · 158 sun hours · 73% humidity · Peak crowd · UV 2 (low)

December

5/10

8–15°C (feels 13°C) · 14 rain days (184h) · 149 sun hours · 76% humidity · Moderate crowd · UV 1 (low)

Frequently asked questions about visiting Coimbra

When is the best time to visit Coimbra?

June is the highest-scoring month (9/10 on the Holiday Climate Index). Typical conditions: 14–25°C (9 rainy days). The top three months by score are June, September, May.

What is the worst time to visit Coimbra?

December is the lowest-scoring month (5/10). Typical conditions: 8–15°C (14 rainy days).

Is Coimbra too hot in summer?

1 month (July) trip the heat deal-breaker in our scoring: apparent temperature crosses the comfort cap, so even with clear skies and low rain the score is held down. Plan around it if heat tolerance is low.

When are crowds lowest in Coimbra?

Search-interest seasonality (Google Trends 2021-2025) is lowest in March and peaks in August. 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 Coimbra have good weather but fewer tourists?

June (climate 9/10, crowd index 1) and May (climate 8/10, crowd index 4) — shoulder months with above-average climate and below-median search-interest. Often the best value-for-weather trade.

What is the UV index in Coimbra by month?

UV peaks at 8 (very high) in July and is lowest in January at 1 (low). Monthly peak values: Jan 1, Feb 2, Mar 4, Apr 5, May 6, Jun 7, Jul 8, Aug 8, Sep 5, Oct 3, Nov 2, Dec 1. July reach very high or extreme levels — apply SPF 50+, wear a hat and protective clothing, and limit direct sun between 11:00 and 17:00.

What is the UV index in Coimbra in July?

July is the peak UV month in Coimbra, with a daily-peak UV index of 8 (very high). At this level, sunburn can occur in under 20 minutes on unprotected fair skin. Apply SPF 50+, wear protective clothing and a hat, and avoid direct midday sun (11:00–17:00).

How high can UV get in Coimbra 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. June is the worst case: typical days average UV 7 (high), but the top 10% of days reach UV 9 (very high) — and even higher. Months where the sunniest days routinely exceed the typical reading: February, March, April, May, June, August, September, October. Plan sun protection for the worst case, not the average.

Is air quality in Coimbra bad for travelers?

PM2.5 (fine-particle pollution) exceeds the WHO sensitive-group guideline (15 µg/m³) in 8 months: January, February, March, June, August, October, November, December. The worst month is February with a typical-day mean of 12 µg/m³ (moderate); on the worst 10% of days PM2.5 reaches 20 µg/m³ (unhealthy for sensitive) 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.