July scores 77/100 for outdoor ceremonies: low rain risk (4 wet days, 41mm), 25°C afternoons cooling to about 20°C for the reception, and 10.7 hours of daylight for the photography schedule. February is the month to avoid at 33/100.
July outdoor ceremony score: 77/100
Climate normals for Rio de Janeiro 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 | July — 77/100 |
| Second choice | August — 77/100 |
| Month to avoid | February — 33/100 |
| Rain risk in the best month | Low — rain on about 4 days |
| Guest comfort | 87/100 at 25°C |
| Reception temperature | ≈ 20°C after sunset in July |
| Photo light | 8h of sun across a 10.7h day |
| Months scoring 65+ | 4 of 12 |
July keeps seated guests at 25°C in the afternoon and around 20°C after sunset — the closest Rio de Janeiro gets to a ceremony that needs neither shade structures nor patio heaters.
Rain falls on roughly 4 days in July (low risk, 41mm). A simple marquee-on-standby is usually enough.
July gives 10.7 hours of daylight and about 8 hours of direct sun per day, so a late-afternoon ceremony puts portraits inside golden hour rather than after it.
February scores 33/100 for weddings in Rio de Janeiro: 31°C highs, 130mm of rain and 26°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 | 33/100 | Moderate (12 days) | 31°C | 26°C | 62/100 | 22/100 |
| February | 33/100 | Moderate (12 days) | 31°C | 26°C | 62/100 | 21/100 |
| March | 34/100 | Moderate (12 days) | 30°C | 25°C | 66/100 | 19/100 |
| April | 48/100 | Moderate (9 days) | 29°C | 24°C | 71/100 | 35/100 |
| May | 63/100 | Low (6 days) | 27°C | 22°C | 79/100 | 44/100 |
| June | 75/100 | Low (4 days) | 26°C | 21°C | 83/100 | 64/100 |
| July | 77/100 | Low (4 days) | 25°C | 20°C | 87/100 | 64/100 |
| August | 77/100 | Low (4 days) | 25°C | 20°C | 87/100 | 65/100 |
| September | 71/100 | Low (5 days) | 26°C | 21°C | 83/100 | 63/100 |
| October | 56/100 | Moderate (8 days) | 27°C | 22°C | 79/100 | 40/100 |
| November | 49/100 | Moderate (9 days) | 29°C | 24°C | 71/100 | 38/100 |
| December | 35/100 | Moderate (12 days) | 30°C | 25°C | 66/100 | 22/100 |
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 Rio de Janeiro 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 Rio de Janeiro linked below.
July, at 77/100. It combines low rain risk with 25°C afternoons and roughly 20°C evenings, which is the most forgiving combination Rio de Janeiro offers for seated guests.
February scores 33/100: 31°C highs, 130mm of rain over about 12 days and 26°C evenings make a fully outdoor plan fragile.
In July rain falls on roughly 4 of 30 days, so the single-day probability is about 13%. In February that rises to about 40%.
A marquee on standby is usually enough in July, where rain risk is low. Outside the 4 months scoring 65 or higher, book real covered space.
July gives 10.7 hours of daylight and about 8 hours of direct sun. Put portraits in the final 60–90 minutes of daylight so they land inside golden hour rather than after it.