May scores 49/100 for outdoor ceremonies: moderate rain risk (9 wet days, 40mm), 13°C afternoons cooling to about 8°C for the reception, and 16.8 hours of daylight for the photography schedule. December is the month to avoid at 11/100.
May outdoor ceremony score: 49/100
Climate normals for Tallinn rescored on wedding-specific weighting. Once your date falls inside the 14-day window the live forecast on this page takes over.
Last updated: · Live forecast data refreshes hourly.
| Best wedding month | May — 49/100 |
| Second choice | June — 48/100 |
| Month to avoid | December — 11/100 |
| Rain risk in the best month | Moderate — rain on about 9 days |
| Guest comfort | 69/100 at 13°C |
| Reception temperature | ≈ 8°C after sunset in May |
| Photo light | 10h of sun across a 16.8h day |
| Months scoring 65+ | 0 of 12 |
May keeps seated guests at 13°C in the afternoon and around 8°C after sunset — the closest Tallinn gets to a ceremony that needs neither shade structures nor patio heaters.
Rain falls on roughly 9 days in May (moderate risk, 40mm). Book a covered backup you would genuinely be happy to use.
May gives 16.8 hours of daylight and about 10 hours of direct sun per day, so a late-afternoon ceremony puts portraits inside golden hour rather than after it.
December scores 11/100 for weddings in Tallinn: 2°C highs, 50mm of rain and -2°C evenings make a fully outdoor plan fragile.
Scored on rain risk, guest comfort, evening temperature and photographic light — deliberately different weighting from the travel score.
| Month | Wedding score | Rain risk | Afternoon | Evening | Guest comfort | Photo light |
|---|---|---|---|---|---|---|
| January | 19/100 | Moderate (9 days) | -1°C | -5°C | 22/100 | 18/100 |
| February | 27/100 | Low (7 days) | -1°C | -5°C | 22/100 | 30/100 |
| March | 27/100 | Moderate (8 days) | 2°C | -2°C | 32/100 | 31/100 |
| April | 38/100 | Moderate (8 days) | 8°C | 3°C | 52/100 | 44/100 |
| May | 49/100 | Moderate (9 days) | 13°C | 8°C | 69/100 | 74/100 |
| June | 48/100 | High (15 days) | 19°C | 13°C | 90/100 | 64/100 |
| July | 46/100 | High (19 days) | 22°C | 16°C | 100/100 | 7/100 |
| August | 45/100 | High (20 days) | 22°C | 16°C | 100/100 | 0/100 |
| September | 40/100 | High (15 days) | 19°C | 13°C | 90/100 | 10/100 |
| October | 28/100 | High (17 days) | 13°C | 8°C | 69/100 | 4/100 |
| November | 19/100 | High (14 days) | 8°C | 3°C | 52/100 | 9/100 |
| December | 11/100 | Moderate (12 days) | 2°C | -2°C | 32/100 | 6/100 |
Wedding weather is scored differently from travel weather: seated guests in formalwear tolerate a narrower band than sightseers, and the ceremony hour matters more than the daily average. Each month in Tallinn is scored 0–100 on the weighting below.
| Factor | Weight | What it measures |
|---|---|---|
| Dry conditions | 38% | Share of days with measurable rain — the single factor most likely to force a backup plan. |
| Guest comfort | 27% | Distance from a 22°C daytime ideal, with an extra penalty for humid heat above 24°C. |
| Evening temperature | 20% | Modelled reception-hour temperature against an 18°C ideal for an outdoor evening. |
| Photo light | 15% | Sunshine hours and daylight length, which set the length and quality of the golden hour window. |
Based on long-run climate averages rather than a forecast. Plan the ceremony around the golden hour — see golden hour times for Tallinn linked below.
May, at 49/100. It combines moderate rain risk with 13°C afternoons and roughly 8°C evenings, which is the most forgiving combination Tallinn offers for seated guests.
December scores 11/100: 2°C highs, 50mm of rain over about 12 days and -2°C evenings make a fully outdoor plan fragile.
In May rain falls on roughly 9 of 30 days, so the single-day probability is about 30%. In December that rises to about 40%.
Yes. Even in the best month, rain risk in Tallinn is moderate, so book covered space you would genuinely be happy to use rather than treating it as a late add-on.
May gives 16.8 hours of daylight and about 10 hours of direct sun. Put portraits in the final 60–90 minutes of daylight so they land inside golden hour rather than after it.