September scores 73/100 for outdoor ceremonies: very low rain risk (2 wet days, 28mm), 30°C afternoons cooling to about 25°C for the reception, and 12 hours of daylight for the photography schedule. February is the month to avoid at 23/100.
September outdoor ceremony score: 73/100
Climate normals for Jakarta 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 | September — 73/100 |
| Second choice | August — 70/100 |
| Month to avoid | February — 23/100 |
| Rain risk in the best month | Very low — rain on about 2 days |
| Guest comfort | 66/100 at 30°C |
| Reception temperature | ≈ 25°C after sunset in September |
| Photo light | 8h of sun across a 12h day |
| Months scoring 65+ | 2 of 12 |
September keeps seated guests at 30°C in the afternoon and around 25°C after sunset — the closest Jakarta gets to a ceremony that needs neither shade structures nor patio heaters.
Rain falls on roughly 2 days in September (very low risk, 28mm). A simple marquee-on-standby is usually enough.
September gives 12 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 23/100 for weddings in Jakarta: 33°C highs, 300mm of rain and 27°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 | 23/100 | High (24 days) | 33°C | 27°C | 47/100 | 0/100 |
| February | 23/100 | High (24 days) | 33°C | 27°C | 47/100 | 0/100 |
| March | 24/100 | High (17 days) | 33°C | 27°C | 50/100 | 2/100 |
| April | 31/100 | Moderate (12 days) | 32°C | 27°C | 58/100 | 26/100 |
| May | 44/100 | Moderate (9 days) | 31°C | 26°C | 62/100 | 35/100 |
| June | 48/100 | Moderate (8 days) | 30°C | 25°C | 66/100 | 31/100 |
| July | 62/100 | Low (5 days) | 30°C | 25°C | 66/100 | 62/100 |
| August | 70/100 | Very low (3 days) | 30°C | 25°C | 66/100 | 70/100 |
| September | 73/100 | Very low (2 days) | 30°C | 25°C | 66/100 | 73/100 |
| October | 47/100 | Moderate (9 days) | 31°C | 26°C | 62/100 | 57/100 |
| November | 35/100 | Moderate (11 days) | 32°C | 27°C | 58/100 | 30/100 |
| December | 25/100 | High (16 days) | 33°C | 27°C | 51/100 | 7/100 |
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 Jakarta 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 Jakarta linked below.
September, at 73/100. It combines very low rain risk with 30°C afternoons and roughly 25°C evenings, which is the most forgiving combination Jakarta offers for seated guests.
February scores 23/100: 33°C highs, 300mm of rain over about 24 days and 27°C evenings make a fully outdoor plan fragile.
In September rain falls on roughly 2 of 30 days, so the single-day probability is about 7%. In February that rises to about 80%.
A marquee on standby is usually enough in September, where rain risk is very low. Outside the 2 months scoring 65 or higher, book real covered space.
September gives 12 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.