Sistema Alerta Rio - Prefeitura do Rio engagement report
@AlertaRio - 341K followers on X
Measured over 108 original posts from a 30-day window, last computed on October 8, 2026.
Engagement
A typical post picks up 12 interactions against 341K followers, an engagement rate of 0.004%. Measured over 108 original posts, its engagement rate beats 22% of 20,444 tracked accounts of a similar size. That is a reason to look at how the audience behaves - reply depth, saves, whether the followers are recent - rather than a conclusion about it on its own. Posts are seen about 2.8K times each, and 0.453% of those impressions turn into an interaction. That is about 0.809% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 4 posts a day over the last 30 days, though only 27% of days saw any activity at all. Most posts go out around 01:00 UTC, and Monday is the busiest day of the week. Of the 108 posts sampled, 88% carry an image or video, 10% are part of a thread and 19% link out. The account's strongest tracked post pulled 216 interactions, about 18x its own typical post. Recurring topics include #riodejaneiro, #rio.
Measured over 108 original posts from a 30-day window, last computed on October 8, 2026. Recurring tags: #riodejaneiro, #rio.
Compared with accounts its own size
Sistema Alerta Rio - Prefeitura do Rio's engagement rate beats 22% of the tracked X accounts closest to it in follower count (20,444 accounts, accounts of similar size (decile 10 of 10)). A percentile is spread evenly by construction, so 50 really is the middle of that group and 90 really is its top tenth.
On engagement per impression rather than per follower it beats 29% of the same group. When those two numbers disagree, the gap is about how far its posts travel rather than how people react to them.
Where this sits in the catalog
At 0.004%, Sistema Alerta Rio - Prefeitura do Rio sits above the 10th percentile of the 205,261 accounts in this comparison. That places it in the bottom 25% band, which runs below 0.024%.
Show the percentile table
| Percentile | Engagement rate |
|---|---|
| 10th percentile | 0.004% |
| 25th percentile | 0.024% |
| 50th percentile | 0.143% |
| 75th percentile | 0.678% |
| 90th percentile | 2.55% |
| 99th percentile | 82.4% |
This ruler is the whole measured catalog, not a size-matched group: it shows where the raw rate falls across every account we can measure, all of which are large. For a like-for-like comparison, read the size-band percentile above instead. See how the bands are built
Posting timing
This account posts most often around 01:00 UTC, and Monday is its busiest day of the week. The bars below are the catalog-wide pattern, with this account's own busiest slot marked. They do not show how this account performs at each hour: we keep one aggregate per account, not one per hour, so that measurement does not exist in our data.
Show engagement by hour posted, utc as a table
| Hour (UTC) | Vs author median | Posts |
|---|---|---|
| 00:00 UTC | -1% | 89K |
| 01:00 UTC | -2% | 90K |
| 02:00 UTC | -3% | 88K |
| 03:00 UTC | -4% | 94K |
| 04:00 UTC | -5% | 76K |
| 05:00 UTC | -4% | 75K |
| 06:00 UTC | -5% | 86K |
| 07:00 UTC | -5% | 93K |
| 08:00 UTC | -4% | 108K |
| 09:00 UTC | -4% | 124K |
| 10:00 UTC | -3% | 129K |
| 11:00 UTC | -3% | 141K |
| 12:00 UTC | -3% | 154K |
| 13:00 UTC | -3% | 167K |
| 14:00 UTC | -4% | 173K |
| 15:00 UTC | -2% | 176K |
| 16:00 UTC | -3% | 171K |
| 17:00 UTC | -3% | 159K |
| 18:00 UTC | -2% | 149K |
| 19:00 UTC | -2% | 141K |
| 20:00 UTC | -1% | 131K |
| 21:00 UTC | 0% | 116K |
| 22:00 UTC | -2% | 100K |
| 23:00 UTC | -1% | 90K |
Show engagement by day of week as a table
| Day | Vs author median | Posts |
|---|---|---|
| Sunday | +5% | 393K |
| Monday | +1% | 483K |
| Tuesday | -2% | 520K |
| Wednesday | -3% | 472K |
| Thursday | -2% | 430K |
| Friday | -3% | 447K |
| Saturday | +2% | 393K |
Formats this account uses
Its own posting mix on the left, and what each of those formats does across every account we track on the right. Only formats where the effect clears our publish test appear here, so an empty row is a format we could not measure rather than one that does nothing.
| Format | This account | Catalog effect | 95% interval | Accounts behind it |
|---|---|---|---|---|
| Image or video | 88% of posts | +111% | +108% to +115% | 34K |
| Outbound link | 19% of posts | -41% | -42% to -40% | 32K |
| Typical length | - | no effect | -2% to -1% | 42K |
- 88% of this account's sampled posts carry an image or video. Across the catalog, posts with an image or video run 111% above the same accounts' other posts.
- 19% of its posts carry a link off X. Across the catalog, posts with an outbound link run 41% below the same accounts' other posts.
- Its average post runs 181 characters, which falls in the 180 - 280 characters band. Across the catalog, posts of 180 to 280 characters match the same accounts' other posts almost exactly.
These are catalog-wide differences applied to this account's own posting mix, not a measurement of how each format performs for this account specifically. We keep one median per account, not one per format per account, so the second thing is not something this data can tell you.
Best tweets
- Aug 31, 202618x their median
⚠️AVISO METEOROLÓGICO | A partir da manhã de terça-feira, a previsão é de rajadas de ventos moderado a forte. Entre a tarde de terça-feira (1°/09) e a madrugada de quarta-feira (02/09) há previsão de pancadas de chuva moderada a forte em pontos isolados, acompanhadas de raios. .. https://t.co/b8zOhZncia
- Sep 13, 202611x their median
⚠️AVISO METEOROLÓGICO | Previsão de pancadas de chuva moderada/forte entre a madrugada de segunda-feira (14/09) e a madrugada de terça-feira (15/09), podendo vir com raios e rajadas de vento moderado. NÍVEL DE SEVERIDADE: Médio VALIDADE: Entre 00h de segunda e 06h de terça. + https://t.co/AHt0Hcasuu
- Sep 13, 202611x their median
PRÓXIMOS DIAS | 14 a 17/09 | Previsão de pancadas de chuva com raios a qualquer momento de segunda-feira e durante a madrugada de terça. Chuva fraca isolada a qualquer momento de quarta e durante à madrugada/manhã de quinta. Ventos predominantemente moderados nestes dias. + https://t.co/4S51IeO2mY
- Sep 12, 20267.5x their median
🌧️PRÓXIMOS DIAS | O tempo segue instável no #RiodeJaneiro. Previsão de chuva fraca a moderada isolada a qualquer hora no domingo e pancadas de chuva a qualquer hora e ventos moderados na segunda. Saiba mais em: https://t.co/BrVqrBJYOE https://t.co/A1GPGkNvli
- Aug 31, 20267.3x their median
PRÓXIMOS DIAS | 1° a 04/09 | Há previsão de pancadas de chuva moderada/forte acompanhadas de raios entre a tarde de terça-feira e a madrugada de quarta-feira, passando a chuva fraca a moderada isolada a partir da manhã de quarta. Os ventos estarão moderados a fortes. ... https://t.co/nUid1kszbD
- Sep 1, 20266.7x their median
PRÓXIMOS DIAS | Na quarta-feira (02/09), a previsão é de pancadas de chuva isoladas na madrugada, passando a chuva fraca a moderada isolada no restante do dia. Os ventos estarão moderados a pontualmente fortes na madrugada. https://t.co/chMtHc76ZQ
- Sep 1, 20266.3x their median
VENTO MODERADO 🍃 Na última hora (03h-04h), houve registro de vento moderado na estação Marambaia (43,9 km/h). Fonte: INMET.
- Oct 7, 20265.8x their median
PRÓXIMOS DIAS | Na quinta-feira (08/10) e na sexta-feira (09/10) não há previsão de chuva. Os ventos estarão fracos a moderados. No sábado (10/10), há previsão de pancadas de chuva a partir da noite, podendo vir acompanhadas de raios e rajadas de vento moderado/forte. https://t.co/2BYENkFGXq
- Sep 2, 20264.3x their median
PRÓXIMOS DIAS | Na quinta-feira (03/09) não há previsão de chuva. Na sexta-feira (04/09) há previsão de chuva fraca isolada no período da noite. Os ventos estarão moderados em ambos os dias. https://t.co/sfAL0vBgY1
- Oct 5, 20264.2x their median
PRÓXIMOS DIAS | 06/10 a 09/10 Na terça-feira e na quarta-feira, a previsão é de chuva fraca a moderada isolada a qualquer momento, sendo em caráter de pancadas a partir da tarde de terça-feira. Na quinta-feira, a previsão é de chuva fraca isolada durante a madrugada/manhã. https://t.co/l9dZDaw8Bp
Ranked by total interactions across everything we have tracked for this account, which is a longer history than the 30-day window the rates above use. The multiple compares each post to this account's own median.
Recurring topics
The most frequent hashtags in the sampled posts. They describe what this account writes about; they are not a performance signal, and the catalog-wide breakdown on the hub shows how little hashtag count moves.
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Reading these numbers
A typical post picks up 12 interactions against 341K followers, an engagement rate of 0.004%. Measured over 108 original posts, its engagement rate beats 22% of 20,444 tracked accounts of a similar size. That is a reason to look at how the audience behaves - reply depth, saves, whether the followers are recent - rather than a conclusion about it on its own. Posts are seen about 2.8K times each, and 0.453% of those impressions turn into an interaction. That is about 0.809% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 4 posts a day over the last 30 days, though only 27% of days saw any activity at all. Most posts go out around 01:00 UTC, and Monday is the busiest day of the week. Of the 108 posts sampled, 88% carry an image or video, 10% are part of a thread and 19% link out. The account's strongest tracked post pulled 216 interactions, about 18x its own typical post. Recurring topics include #riodejaneiro, #rio.
- What is Sistema Alerta Rio - Prefeitura do Rio's engagement rate on X?
- Sistema Alerta Rio - Prefeitura do Rio (@AlertaRio) has an engagement rate of 0.004%, based on the median interactions across 108 original posts from the last 30 days against 340,732 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
- Is that a good engagement rate?
- At 0.004%, Sistema Alerta Rio - Prefeitura do Rio sits above the 10th percentile of the 205,261 accounts in this comparison. Those comparison accounts are all large ones, because our scanning cadence is weighted towards big accounts, so this is a ranking among peers of similar scale rather than a ranking across X.
- Does @AlertaRio have real engagement?
- Its engagement rate beats 22% of the tracked X accounts closest to it in follower count (20,444 accounts), which puts it in the bottom quarter for its size group. Ranking inside a size band matters because engagement rate falls as accounts grow, so a raw rate would mostly re-measure the follower count. It is a starting point for a look at follower quality, not a verdict on it.
- When does @AlertaRio post?
- Most posts go out around 01:00 UTC, and Monday is its busiest day, at roughly 4.03 posts per day across the measured window.